ListBox.py 66.1 KB
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##############################################################################
#
# Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved.
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#                    Jean-Paul Smets-Solanes <jp@nexedi.com>
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#
# WARNING: This program as such is intended to be used by professional
# programmers who take the whole responsability of assessing all potential
# consequences resulting from its eventual inadequacies and bugs
# End users who are looking for a ready-to-use solution with commercial
# garantees and support are strongly adviced to contract a Free Software
# Service Company
#
# This program is Free Software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
#
##############################################################################

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import string, types, sys
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from AccessControl import ClassSecurityInfo
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from Products.Formulator.DummyField import fields
from Products.Formulator import Widget, Validator
from Products.Formulator.Field import ZMIField
from Products.Formulator.Form import BasicForm
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from Products.Formulator.Errors import FormValidationError, ValidationError
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from Products.Formulator.MethodField import BoundMethod
from Selection import Selection
from DateTime import DateTime
from Products.ERP5Type.Utils import getPath
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from Products.ERP5Type.Document import newTempBase
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from Products.CMFCore.utils import getToolByName
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from copy import copy
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from Acquisition import aq_base, aq_inner, aq_parent, aq_self
from zLOG import LOG

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import random
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import md5

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def getAsList(a):
  l = []
  for e in a:
    l.append(e)
  return l

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def makeTreeBody(root, depth, total_depth, unfolded_list, form_id, selection_name):

  tree_body = ''
  unfolded_ids = []
  for t in unfolded_list:
    if len(t) > 0:
      unfolded_ids += [t[0]]

  for o in root.objectValues():
    tree_body += '<TR>' + '<TD WIDTH="16" NOWRAP>' * depth
    if o.id in unfolded_ids:
      tree_body += """<TD NOWRAP VALIGN="TOP" ALIGN="LEFT" COLSPAN="%s">
<a href="portal_selections/setDomainList?domain_list_url=%s&form_id=%s&list_selection_name=%s" >- <b>%s</b></a>
</TD>""" % (total_depth - depth + 1, o.getUrl() , form_id, selection_name, o.id)
      new_unfolded_list = []
      for t in unfolded_list:
        if len(t) > 0:
          if t[0] == o.id:
            new_unfolded_list += [t[1:]]
      tree_body += makeTreeBody(o, depth + 1, total_depth, new_unfolded_list, form_id, selection_name)
    else:
      tree_body += """<TD NOWRAP VALIGN="TOP" ALIGN="LEFT" COLSPAN="%s">
<a href="portal_selections/setDomainList?domain_list_url=%s&form_id=%s&list_selection_name=%s" >+ %s</a>
</TD>""" % (total_depth - depth + 1, o.getUrl() , form_id, selection_name, o.id)

  return tree_body

def makeTreeList(root, depth, total_depth, unfolded_list, form_id, selection_name):
  """
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    (object, is_pure_summary, depth, is_open)
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  """

  tree_list = []
  unfolded_ids = []
  for t in unfolded_list:
    if len(t) > 0:
      unfolded_ids += [t[0]]

  for o in root.objectValues():
    if o.id in unfolded_ids:
      tree_list += [(o, 1, depth, 1)]
      new_unfolded_list = []
      for t in unfolded_list:
        if len(t) > 0:
          if t[0] == o.id:
            new_unfolded_list += [t[1:]]
      tree_list += [(o, 0, depth, 0)]
      tree_list += makeTreeList(o, depth + 1, total_depth, new_unfolded_list, form_id, selection_name)
    else:
      tree_list += [(o, 1, depth, 0)]

  return tree_list


class ListBoxWidget(Widget.Widget):
    """
        ListBox widget

        The ListBox widget allows to display a collection of objects in a form.
        The ListBox widget can be used for many applications:

        1- show the content of a folder by providing a list of meta_types
           and eventually a sort order

        2- show the content of a relation by providing the name of the relation,
           a list of meta_types and eventually a sort order

        3- show the result of a search request by selecting a query and
           providing parameters for that query (and eventually a sort order)

        In all 3 cases, a parameter to hold the current start item must be
        stored somewhere, typically in a selection object.

        Parameters in case 3 should stored in a selection object which allows a per user
        per PC storage.

        ListBox uses the following control variables

        - sort_by -- the id to sort results

        - sort_order -- the order of sorting
    """
    property_names = Widget.Widget.property_names +\
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                     ['lines', 'columns', 'all_columns', 'search_columns', 'sort_columns', 'sort',
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                      'editable_columns', 'all_editable_columns', 'stat_columns', 'url_columns', 'global_attributes',
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                      'list_method', 'stat_method', 'selection_name',
                      'meta_types', 'portal_types', 'default_params',
                      'search', 'select',
                      'domain_tree', 'domain_root_list',
                      'report_tree', 'report_root_list',
                      'list_action' ]

    default = fields.TextAreaField('default',
                                   title='Default',
                                   description=(
        "Default value of the text in the widget."),
                                   default="",
                                   width=20, height=3,
                                   required=0)

    lines = fields.IntegerField('lines',
                                title='Lines',
                                description=(
        "The number of lines of this list. Required."),
                                default=10,
                                required=1)

    columns = fields.ListTextAreaField('columns',
                                 title="Columns",
                                 description=(
        "A list of attributes names to display. Required."),
                                 default=[],
                                 required=1)

    all_columns = fields.ListTextAreaField('all_columns',
                                 title="More Columns",
                                 description=(
        "An optional list of attributes names to display."),
                                 default=[],
                                 required=0)

    search_columns = fields.ListTextAreaField('search_columns',
                                 title="Searchable Columns",
                                 description=(
        "An optional list of columns to search."),
                                 default=[],
                                 required=0)

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    sort_columns = fields.ListTextAreaField('sort_columns',
                                 title="Sortable Columns",
                                 description=(
        "An optional list of columns to sort."),
                                 default=[],
                                 required=0)

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    sort = fields.ListTextAreaField('sort',
                                 title='Default Sort',
                                 description=('The default sort keys and order'),
                                 default=[],
                                 required=0)

    list_method = fields.MethodField('list_method',
                                 title='List Method',
                                 description=('The method to use to list'
                                              'objects'),
                                 default='',
                                 required=0)

    stat_method = fields.MethodField('stat_method',
                                 title='Stat Method',
                                 description=('The method to use to count'
                                              'objects'),
                                 default='',
                                 required=0)

    selection_name = fields.StringField('selection_name',
                                 title='Selection Name',
                                 description=('The name of the selection to store'
                                              'params of selection'),
                                 default='',
                                 required=0)

    meta_types = fields.ListTextAreaField('meta_types',
                                 title="Meta Types",
                                 description=(
        "Meta Types of objects to list. Required."),
                                 default=[],
                                 required=0)

    portal_types = fields.ListTextAreaField('portal_types',
                                 title="Portal Types",
                                 description=(
        "Portal Types of objects to list. Required."),
                                 default=[],
                                 required=0)

    default_params = fields.ListTextAreaField('default_params',
                                 title="Default Parameters",
                                 description=(
        "Default Parameters for the List Method."),
                                 default=[],
                                 required=0)

    search = fields.CheckBoxField('search',
                                 title='Search Row',
                                 description=('Search Row'),
                                 default='',
                                 required=0)

    select = fields.CheckBoxField('select',
                                 title='Select Column',
                                 description=('Select Column'),
                                 default='',
                                 required=0)

    editable_columns = fields.ListTextAreaField('editable_columns',
                                 title="Editable Columns",
                                 description=(
        "An optional list of columns which can be modified."),
                                 default=[],
                                 required=0)

    all_editable_columns = fields.ListTextAreaField('all_editable_columns',
                                 title="All Editable Columns",
                                 description=(
        "An optional list of columns which can be modified."),
                                 default=[],
                                 required=0)

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    stat_columns = fields.ListTextAreaField('stat_columns',
                                 title="Stat Columns",
                                 description=(
        "An optional list of columns which can be used for statistics."),
                                 default=[],
                                 required=0)

    url_columns = fields.ListTextAreaField('url_columns',
                                 title="URL Columns",
                                 description=(
        "An optional list of columns which can provide a custom URL."),
                                 default=[],
                                 required=0)

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    global_attributes = fields.ListTextAreaField('global_attributes',
                                 title="Global Attributes",
                                 description=(
        "An optional list of attributes which are set by hidden fields and which are applied to each editable column."),
                                 default=[],
                                 required=0)

    domain_tree = fields.CheckBoxField('domain_tree',
                                 title='Domain Tree',
                                 description=('Selection Tree'),
                                 default='',
                                 required=0)

    domain_root_list = fields.ListTextAreaField('domain_root_list',
                                 title="Domain Root",
                                 description=(
        "A list of domains which define the possible root."),
                                 default=[],
                                 required=0)

    report_tree = fields.CheckBoxField('report_tree',
                                 title='Report Tree',
                                 description=('Report Tree'),
                                 default='',
                                 required=0)



    report_root_list = fields.ListTextAreaField('report_root_list',
                                 title="Report Root",
                                 description=(
        "A list of domains which define the possible root."),
                                 default=[],
                                 required=0)

    list_action = fields.StringField('list_action',
                                 title='List Action',
                                 description=('The id of the object action'
                                              'to display the current list'),
                                 default='',
                                 required=1)

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    def render(self, field, key, value, REQUEST, render_format='html'):
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        """
          This is where most things happen. This method renders a list
          of items
        """
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        ###############################################################
        #
        # First, grasp and intialize the variables we may need later
        #
        ###############################################################
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        here = REQUEST['here']
        reset = REQUEST.get('reset', 0)
        form = field.aq_parent
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        field_errors = REQUEST.get('field_errors',{});
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        field_title = field.get_value('title')
        lines = field.get_value('lines')
        meta_types = field.get_value('meta_types')
        portal_types= field.get_value('portal_types')
        columns = field.get_value('columns')
        all_columns = field.get_value('all_columns')
        default_params = field.get_value('default_params')
        search = field.get_value('search')
        select = field.get_value('select')
        sort = field.get_value('sort')
        editable_columns = field.get_value('editable_columns')
        all_editable_columns = field.get_value('all_editable_columns')
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        stat_columns = field.get_value('stat_columns')
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        url_columns = field.get_value('url_columns')
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        search_columns = field.get_value('search_columns')
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        sort_columns = field.get_value('sort_columns')
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        domain_tree = field.get_value('domain_tree')
        report_tree = field.get_value('report_tree')
        domain_root_list = field.get_value('domain_root_list')
        report_root_list = field.get_value('report_root_list')
        list_method = field.get_value('list_method')
        stat_method = field.get_value('stat_method')
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        selection_index = REQUEST.get('selection_index')
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        selection_name = field.get_value('selection_name')
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        portal_url_string = getToolByName(here, 'portal_url')()
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        #selection_name = REQUEST.get('selection_name',None)
        #if selection_name is None:
        #  selection_name = str(random.randrange(1,2147483600))
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        current_selection_name = REQUEST.get('selection_name','default')
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        list_action = here.absolute_url() + '/' + field.get_value('list_action') + '?reset=1'
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        object_list = []
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        #LOG('Listbox',0,'search_columns1: %s' % str(search_columns))
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        if search_columns == [] or search_columns is None or search_columns == '':
          # We will set it as the schema
          search_columns = map(lambda x: [x,x],here.portal_catalog.schema())
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          #LOG('Listbox',0,'search_columns2: %s' % str(search_columns))
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        search_columns_id_list = map(lambda x: x[0], search_columns)

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        if sort_columns == [] or sort_columns is None or sort_columns == '':
          sort_columns = search_columns
        sort_columns_id_list = map(lambda x: x[0], sort_columns)
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        # Display statistics if the button Parameter exists or stat columns are defined explicitly.
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        filtered_actions = here.portal_actions.listFilteredActionsFor(here);
        object_ui = filtered_actions.has_key('object_ui')
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        show_stat = (object_ui or stat_columns)

        # If nothing is specified to stat_columns, assume that all columns are available.
        # For compatibility, because there was no stat_columns before.
        if not stat_columns:
          stat_columns = []
          for column in all_columns:
            stat_columns.append((column[0], column[0]))
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        if not url_columns:
          url_columns = []

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        has_catalog_path = None
        for (k, v) in all_columns:
          if k == 'catalog.path' or k == 'path':
            has_catalog_path = k
            break

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        selection = here.portal_selections.getSelectionFor(selection_name, REQUEST=REQUEST)
        # Create selection if needed, with default sort order
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        if selection is None:
          selection = Selection(params=default_params, sort_on = sort)
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        # Or make sure all sort arguments are valid
        else:
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          # Reset Selection is needed
          if reset is not 0 and reset is not '0':
            here.portal_selections.setSelectionToAll(selection_name)
            here.portal_selections.setSelectionSortOrder(selection_name, sort_on = sort)

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          # Filter non searchable items
          sort = []
          fix_sort = 0
          for (k , v) in selection.selection_sort_on:
            if k in sort_columns_id_list:
              sort.append((k,v))
            else:
              fix_sort = 1
          if fix_sort: selection.selection_sort_on = sort
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        if not hasattr(selection, 'selection_flat_list_mode'):
          selection.edit(flat_list_mode=(not (domain_tree or
           report_tree)),domain_tree_mode=domain_tree,report_tree_mode= report_tree)

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        # Selection
        #LOG("Selection",0,str(selection.__dict__))
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        # Display choosen by the user

        if selection.selection_flat_list_mode is not None:
          if selection.selection_flat_list_mode == 1:
            domain_tree = 0
            report_tree = 0
          elif selection.selection_domain_tree_mode == 1:
            domain_tree = 1
            report_tree = 0
          elif selection.selection_report_tree_mode == 1:
            domain_tree = 0
            report_tree = 1

        checked_uids = selection.getSelectionCheckedUids()
        columns = here.portal_selections.getSelectionColumns(selection_name,
                                                columns=columns, REQUEST=REQUEST)


        editable_column_ids = map(lambda x: x[0], editable_columns)
        all_editable_column_ids = map(lambda x: x[0], all_editable_columns)

        url = REQUEST.URL

        # Build the list of meta_types
        filtered_meta_types = map(lambda x: x[0], meta_types)
        if len(filtered_meta_types) == 0:
          filtered_meta_types = None

        # Build the list of meta_types
        filtered_portal_types = map(lambda x: x[0], portal_types)
        if len(filtered_portal_types) == 0:
            filtered_portal_types = None

        # Combine default values, selection values and REQUEST
        params = selection.getSelectionParams()
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        if list_method not in (None, ''):
          # Only update params if list_method is defined
          # (ie. do not update params in listboxed intended to show a previously defined selection
          params.update(REQUEST.form)
          for (k,v) in default_params:
            if REQUEST.form.has_key(k):
              params[k] = REQUEST.form[k]
            elif not params.has_key(k):
              params[k] = eval(v)
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        # Allow overriding list_method and stat_method by params
        if params.has_key('list_method_id'):
          #try:
          list_method = getattr(here.portal_skins.local_list_method , params['list_method_id']) # Coramy specific
          #except:
          #  list_method = list_method
        if params.has_key('stat_method_id'):
          #try:
          list_method = getattr(here.portal_skins.local_list_method , params['stat_method_id']) # Coramy specific
          #except:
          #  list_method = list_method

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        # Set the params spec (this should change in the future)
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        if list_method not in (None, ''):
          # Only update params if list_method is defined
          # (ie. do not update params in listboxed intended to show a previously defined selection
          params['meta_type'] = filtered_meta_types
          params['portal_type'] = filtered_portal_types
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        ###############################################################
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        #
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        # Build the columns selections
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        #
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        # The idea is: instead of selecting *, listbox is able to
        # provide what should be selected. This should allow to reduce
        # the quantity of data transfered between MySQL and Zope
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        #
        ###############################################################
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        extended_columns = []
        sql_columns = []
        for (sql, title) in columns:
          # original SQL id, Title, alias
          alias = string.split(sql,'.')
          alias = string.join(alias, '_')
          extended_columns += [(sql, title, alias)]
          if alias != sql:
            sql_columns += ['%s AS %s' % (sql, alias)]
          else:
            sql_columns += [alias]
        if has_catalog_path:
          alias = string.split(has_catalog_path,'.')
          alias = string.join(alias, '_')
          if alias != has_catalog_path:
            sql_columns += ['%s AS %s' % (has_catalog_path, alias)]
          else:
            sql_columns += [alias]
        sql_columns_string = string.join(sql_columns,' , ')
        params['select_columns'] = sql_columns_string

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        ###############################################################
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        #
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        # Execute the query
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        #
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        ###############################################################
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        kw = params
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        # XXX Remove selection_expression if present.
        # This is necessary for now, because the actual selection expression in
        # search catalog does not take the requested columns into account. If
        # select_expression is passed, this can raise an exception, because stat
        # method sets select_expression, and this might cause duplicated column
        # names.
        #
        # In the future, this must be addressed in a clean way. selection_expression
        # should be used for search catalog, and search catalog should not use
        # catalog.* but only selection_expression. But this is a bit difficult,
        # because there is no simple way to distinguish queried columns from callable
        # objects in the current ListBox configuration.
        if 'select_expression' in kw:
          del kw['select_expression']

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        if hasattr(list_method, 'method_name'):
          if list_method.method_name == 'objectValues':
            list_method = here.objectValues
            kw = copy(params)
            kw['spec'] = filtered_meta_types
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          else:
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            # The Catalog Builds a Complex Query
            # So we should not pass too many variables
            kw = {}
            if REQUEST.form.has_key('portal_type'):
              kw['portal_type'] = REQUEST.form['portal_type']
            elif REQUEST.has_key('portal_type'):
              kw['portal_type'] = REQUEST['portal_type']
            elif filtered_portal_types is not None:
              kw['portal_type'] = filtered_portal_types
            elif filtered_meta_types is not None:
              kw['meta_type'] = filtered_meta_types
            elif kw.has_key('portal_type'):
              if kw['portal_type'] == '':
                del kw['portal_type']

            # Remove useless matter
            for cname in params.keys():
              if params[cname] != '' and params[cname]!=None:
                kw[cname] = params[cname]

            # Try to get the method through acquisition
            try:
              list_method = getattr(here, list_method.method_name)
            except:
              pass
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        elif list_method in (None, ''): # Use current selection
          # Use previously used list method
          list_method = None

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        # Lookup the stat_method
        if hasattr(stat_method, 'method_name'):
          if stat_method.method_name == 'objectValues':
            stat_method = None # Nothing to do in this case
            show_stat = 0
          elif stat_method.method_name == 'portal_catalog':
            # We use the catalog count results
            stat_method = here.portal_catalog.countResults
          else:
            # Try to get the method through acquisition
            try:
              stat_method = getattr(here, stat_method.method_name)
              show_stat = 1
            except:
              show_stat = 0
              pass
        else:
          stat_method = here.portal_catalog.countResults

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        LOG('ListBox', 0, 'domain_tree = %s, selection.getSelectionDomainPath() = %s, selection.getSelectionDomainList() = %s' % (repr(domain_tree), repr(selection.getSelectionDomainPath()), repr(selection.getSelectionDomainList())))
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        if domain_tree:
          selection_domain_path = selection.getSelectionDomainPath()
          selection_domain_current = selection.getSelectionDomainList()
          if len(selection_domain_current) > 0:
            try:
              kw['query'] = here.unrestrictedTraverse(selection_domain_path).unrestrictedTraverse(
                                        selection_domain_current[0]).asSqlExpression()
            except:
              "The selection does not exist"
              pass


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        #LOG('ListBox', 0, 'list_method = %s, list_method.__dict__ = %s' % (repr(list_method), repr((list_method.__dict__))))

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        ###############################################################
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        #
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        # Prepare the stat select_expression
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        #
        ###############################################################
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        if show_stat:
          stats = here.portal_selections.getSelectionStats(selection_name, REQUEST=REQUEST)
          select_expression = ''
          index = 0

          for (sql,title,alias) in extended_columns:
            # XXX This might be slow.
            for column in stat_columns:
              if column[0] == sql:
                break
            else:
              column = None
            if column is not None and column[0] == column[1]:
              try:
                if stats[index] != ' ':
                  select_expression += stats[index] + '(' + sql + ') AS ' + alias + ','
                else:
                  select_expression += '\'&nbsp;\' AS ' + alias + ','
              except:
                select_expression += '\'&nbsp;\' AS ' + alias + ','
            index = index + 1

          select_expression = select_expression[:len(select_expression) - 1]
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        ###############################################################
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        #
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        # Build the report tree
        #
        # When we build the body, we have to go through all report lines
        #
        # Each report line is a tuple of the form:
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        #
        # (section_id, is_summary, depth, object_list, object_list_size, is_open)
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        #
        ###############################################################
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        report_query = ''
        if report_tree:
          original_query = kw.get('query')
          selection_report_path = selection.getSelectionReportPath()
          selection_report_current = selection.getSelectionReportList()
          report_tree_list = makeTreeList(here.unrestrictedTraverse(selection_report_path),
                 0, max(map(lambda x: len(x), selection_report_current)),
                 selection_report_current, form.id, selection_name )
          report_sections = []
          #LOG("Report Tree",0,str(report_tree_list))
          for s in report_tree_list:
            if s[1]:
              # Prepare query
              if domain_tree:
                # This will not work at present XXX
                # Because we can combine AND queries on the same table
                kw['query'] = '(%s AND %s)' % (original_query,
                      s[0].asSqlExpression(strict_membership=0))
              else:
                kw['query'] = s[0].asSqlExpression(strict_membership=0)
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              # Push new select_expression
              original_select_expression = kw.get('select_expression')
              kw['select_expression'] = select_expression
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              selection.edit( params = kw )
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              #LOG('ListBox 569', 0, str((selection_name, selection.__dict__)))
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              stat_temp = selection(selection_method = stat_method,
                        context=here, REQUEST=REQUEST)
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              # Pop new select_expression
              if original_select_expression is None:
                del kw['select_expression']
              else:
                kw['select_expression'] = original_select_expression
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              # stat_result is a list
              # we want now to make it a dictionnary
              # Is this a report line
              # object_stat = ....
              stat_result = {}
              index = 1

              for (k,v) in columns:
                try:
                  stat_result[k] = str(stat_temp[0][index])
                except IndexError:
                  stat_result[k] = ''
                index = index + 1

              stat_context = s[0].asContext(**stat_result)
              stat_context.absolute_url = lambda x: s[0].absolute_url()
              stat_context.domain_url = s[0].getUrl()
              report_sections += [(s[0].id, 1, s[2], [stat_context], 1, s[3])]
            else:
              # Prepare query
              if domain_tree:
                # This will not work at present XXX
                # Because we can combine AND queries on the same table
                kw['query'] = '(%s AND %s)' % (original_query,
                      s[0].asSqlExpression(strict_membership=1))
              else:
                kw['query'] = s[0].asSqlExpression(strict_membership=1)
              report_query += kw['query']
              selection.edit( params = kw )
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              if list_method not in (None, ''):
                object_list = selection(selection_method = list_method, context=here, REQUEST=REQUEST)
              else:
                # If list_method is None, use already selected values.
                object_list = here.portal_selections.getSelectionValueList(selection_name, context=here, REQUEST=REQUEST)
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#               # PERFORMANCE ? is len(object_list) fast enough ?
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              report_sections += [ (None, 0, s[2], object_list, len(object_list), s[3]) ]
          if original_query is not None:
            kw['query'] = original_query
          else:
            del kw['query']

        else:
          selection.edit( params = kw )
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          #LOG('ListBox 612', 0, str((selection_name, selection.__dict__)))
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          if list_method not in (None, ''):
            object_list = selection(selection_method = list_method, context=here, REQUEST=REQUEST)
          else:
            # If list_method is None, use already selected values.
            object_list = here.portal_selections.getSelectionValueList(selection_name, context=here, REQUEST=REQUEST)
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          # PERFORMANCE PROBLEM ? is len(object_list) fast enough ?
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          report_sections = ( (None, 0, 0, object_list, len(object_list), 0),  )

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        ###############################################################
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        #
        # Build an md5 signature of the selection
        #
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        # It is calculated based on the selection uid list
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        # It is used in order to do some checks in scripts.
        # For example, if we do delete objects, then we do have a list of
        # objects to delete, but it is possible that on another tab the selection
        # change, and then when we confirm the deletion, we don't delete what
        # we want, so this is really dangerous. with this md5 we can check if the
        # selection is the same
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        #
        ###############################################################

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        object_uid_list = map(lambda x: getattr(x, 'uid', None), object_list)
        #LOG('ListBox.render, object_uid_list:',0,object_uid_list)
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        sorted_object_uid_list = copy(object_uid_list)
        sorted_object_uid_list.sort()
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        md5_string = md5.new(str(sorted_object_uid_list)).hexdigest()
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        #md5_string = md5.new(str(object_uid_list)).digest()

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        ###############################################################
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        #
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        # Calculate list start and stop
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        #
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        # Build the real list by slicing it
        # PERFORMANCE ANALYSIS: the result of the query should be
        # if possible a lazy sequence
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        #
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        ###############################################################

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        #LOG("Selection", 0, str(selection.__dict__))
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        total_size = 0
        for s in report_sections:
          total_size += s[4]
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        if render_format == 'list':
          start = 0
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          end = total_size
          total_pages = 1
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          current_page = 0
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        else:
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          try:
            start = REQUEST.get('list_start')
            start = int(start)
          except:
            start = params.get('list_start',0)
            start = int(start)
          end = min(start + lines, total_size)
          #object_list = object_list[start:end]
          total_pages = int(max(total_size-1,0) / lines) + 1
          current_page = int(start / lines)
          start = max(start, 0)
          start = min(start, max(0, total_pages * lines - lines) )
          kw['list_start'] = start
          kw['list_lines'] = lines

        ###############################################################
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        #
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        # Store new selection values
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        #
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        # Store the resulting selection if list_method is not None and render_format is not list
        #
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        ###############################################################
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        if list_method is not None and render_format != 'list':
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          try:
            method_path = getPath(here) + '/' + list_method.method_name
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            #LOG('ListBox', 0, 'method_path = %s, getPath = %s, list_method.method_name = %s' % (repr(method_path), repr(getPath(here)), repr(list_method.method_name)))
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          except:
            method_path = getPath(here) + '/' + list_method.__name__
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            #LOG('ListBox', 0, 'method_path = %s, getPath = %s, list_method.__name__ = %s' % (repr(method_path), repr(getPath(here)), repr(list_method.__name__)))
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          # Sometimes the seltion name is a list ??? Why ????
          if type(current_selection_name) in (type(()),type([])):
            current_selection_name = current_selection_name[0]
          list_url =  url+'?selection_name='+current_selection_name+'&selection_index='+str(selection_index)
          selection.edit( method_path= method_path, params = kw, list_url = list_url)
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          #LOG("Selection kw", 0, str(selection.selection_params))
          here.portal_selections.setSelectionFor(selection_name, selection, REQUEST=REQUEST)
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        ###############################################################
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        #
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        # Build HTML header and footer
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        #
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        ###############################################################
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        # Provide the selection name
        selection_line = """\
<input type="hidden" name="list_selection_name" value="%s" />
""" % selection_name
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        selection_line +="""\
<input type="hidden" name="md5_object_uid_list" value="%s" />
""" % md5_string
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        # Create the Page Selector
        if start == 0:
          pages = """\
   <td nowrap valign="middle" align="center">
   </td>
   <td nowrap valign="middle" align="center">
    <select name="list_start" title="Change Page" size="1"
      onChange="submitAction(this.form,'%s/portal_selections/setPage')">
""" % REQUEST.URL1
        else:
          pages = """\
   <td nowrap valign="middle" align="center">
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    <input type="image" src="%s/images/1leftarrowv.png"
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      Title="Previous Page" name="portal_selections/previousPage:method" border="0" />
   </td>
   <td nowrap valign="middle" align="center">
    <select name="list_start" title="Change Page" size="1"
      onChange="submitAction(this.form,'%s/portal_selections/setPage')">
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""" % (portal_url_string,REQUEST.URL1)
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        for p in range(0, total_pages):
          if p == current_page:
            pages += """<option selected value="%s">%s of %s</option>\n""" \
                    % (p * lines, p+1, total_pages)
          else:
            pages += """<option value="%s">%s of %s</option>\n""" \
                    % (p * lines, p+1, total_pages)

        if current_page == total_pages - 1:
          pages = pages + """\
    </select>
   </td>
   <td nowrap valign="middle" align="center">
   </td>
"""
        else:
          pages = pages + """\
    </select>
   </td>
   <td nowrap valign="middle" align="center">
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    <input type="image" src="%s/images/1rightarrowv.png"
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      Title="Next Page" name="portal_selections/nextPage:method" border="0" />
   </td>
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""" % portal_url_string
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        # Create the header of the table - this should probably become DTML
        # Create also View Selector which enables to switch from a view mode
        # to another directly from the listbox
        header = """\
<!-- List Summary -->
<div class="ListSummary">
 <table border="0" cellpadding="0" cellspacing="0">
  <tr height="10">
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   <td height="10"><img src="%s/images/Left.png" border="0"></td>
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   <td class="Top" colspan="2" height="10">
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    <img src="%s/images/spacer.png" width="5" height="10" border="0"
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      alt="spacer"/></td>
   <td class="Top" colspan="3" height="10">
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    <img src="%s/images/spacer.png" width="5" height="10" border="0"
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      alt="spacer"/>
   </td>
  </tr>
  <tr>
   <td class="Left" width="17">
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    <img src="%s/images/spacer.png" width="5" height="5" border="0"
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        alt="spacer"/>
   </td>
   <td valign="middle" nowrap>

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    <input type="image" src="%s/images/text_block.png" id="flat_list"
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       title="Flat List" name="portal_selections/setFlatListMode:method" value="1" border="0" alt="img"/">
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    <input type="image" src="%s/images/view_tree.png" id="flat_list"
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       title="Report Tree" name="portal_selections/setReportTreeMode:method" value="1" border="0" alt="img"/">
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        <input type="image" src="%s/images/view_choose.png" id="flat_list"
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       title="Domain Tree" name="portal_selections/setDomainTreeMode:method" value="1" border="0" alt="img"/"></td>
   <td width="100%%" valign="middle">&nbsp; <a href="%s">%s</a>:
        %s %s - %s %s
   </td>
   %s
  </tr>
 </table>
</div>
<!-- List Content -->
<div class="ListContent">
 <table cellpadding="0" cellspacing="0" border="0">
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""" % ((portal_url_string,) * 7 + ( list_action, field_title , total_size, 'Records',  len(checked_uids), 'item(s) selected', pages))
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        # pages

        # Create the footer. This should be replaced by DTML
        # And work as some kind of parameter

        footer = """\
      </div>
     </td>
    </div>
   </tr>
   <tr >
    <td colspan="%s" width="50" align="center" valign="middle"
        class="DataA">
    </td>
   </tr>
  </table>
 </div>
""" % (len(columns))

        # Create the header of the table with the name of the columns
        # Create also Report Tree Column if needed
        if report_tree:
          report_tree_options = ''
          for c in report_root_list:
            if c[0] == selection_report_path:
              report_tree_options += """<option selected value="%s">%s</option>\n""" % (c[0], c[1])
            else:
              report_tree_options += """<option value="%s">%s</option>\n""" % (c[0], c[1])
          report_popup = """<select name="report_root_url"
onChange="submitAction(this.form,'%s/portal_selections/setReportRoot')">
        %s</select>""" % (here.getUrl(),report_tree_options)
          report_popup = """
  <td class="Data" width="50" align="center" valign="middle">
  %s
  </td>
""" % report_popup
        else:
          report_popup = ''

        if select:
          list_header = """\
<tr >%s
   <td class="Data" width="50" align="center" valign="middle">
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    <input type="image" name="portal_selections/checkAll:method" value="1"
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      src="%s/images/checkall.png" border="0" alt="Check All" />
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    <input type="image" name="portal_selections/uncheckAll:method" value="1"
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      src="%s/images/decheckall.png" border="0" alt="Uncheck All" />
""" % (report_popup,portal_url_string,portal_url_string)
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        else:
          list_header = """\
<tr >%s
""" % report_popup
        # csort is a list of couples
        # we should convert it into a dict because a list of couples would need
        # a loop in each loop
        sort_dict = {}
        csort = here.portal_selections.getSelectionSortOrder(selection_name)
        for index in csort:
          sort_dict[index[0]] = index[1]

        for cname in columns:
          if sort_dict.has_key(cname[0]):
            if sort_dict[cname[0]] == 'ascending':
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              img = '<img src="%s/images/1bottomarrow.png" alt="Ascending display">' % portal_url_string
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            elif sort_dict[cname[0]] == 'descending':
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              img = '<img src="%s/images/1toparrow.png" alt="Descending display">' % portal_url_string
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            else:
              img = ''
          else:
            img = ''
          if cname[0] in search_columns_id_list:
            list_header = list_header + ("<td class=\"Data\"><a href=\"%sportal_selections/setSelectionQuickSortOrder?selection_name=%s&sort_on=%s\">%s</a> %s</td>\n" %
                (here.absolute_url() + '/' ,str(selection_name),str(cname[0]),str(cname[1]),img))
          else:
            list_header = list_header + ("<td class=\"Data\">%s</td>\n" % str(cname[1]))
        list_header = list_header + "</tr>"

        # Create the search row of the table with the name of the columns
        if search:
          # Add empty column for report
          if report_tree:
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            report_search = """<td class="Data" width="50" align="left" valign="middle">&nbsp;<a href="">1</a>&nbsp;<a href="">2</a>&nbsp;<a href=""><u>3</u></a>&nbsp;</td>"""
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          else:
            report_search = ""

          if select:
            list_search ="""\
  <tr >
   %s
   <td class="Data" width="50" align="center" valign="middle">
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     <input type="image" src="%s/images/exec16.png" title="Action" alt="Action" name="doSelect:method" />
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   </td>
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""" % (report_search,portal_url_string)
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          else:
            list_search ="""\
  <tr >
  %s
""" % report_search

          for cname in extended_columns:
            if cname[0] in search_columns_id_list:
              list_search = list_search + (
                "<td class=\"DataB\"><font size=\"-3\"> \
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                  <input name=\"%s\" size= \"8\" value=\"%s\" > \
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                  </font></td>\n" % \
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                     (str(cname[2]) , params.get(str(cname[2]),'')))
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            else:
              list_search = list_search + (
                "<td class=\"DataB\"></td> ")

          list_search = list_search + "</tr>"
        else:
          list_search = ''
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        # Build the tuple of columns
        if render_format == 'list':
          c_name_list = []
          for cname in columns:
            c_name_list.append(cname[1])

        ###############################################################
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        #
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        # Build lines
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        #
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        ###############################################################
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        # Build Lines
        list_body = ''
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        if render_format == 'list': list_result = [c_name_list] # Create initial list for list render format
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        section_index = 0
        current_section_base_index = 0
        current_section = report_sections[section_index]
        current_section_size = current_section[4]
        object_list = current_section[3]
        for i in range(start,end):
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          # Set the selection index.
          selection.edit(index = i)

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          # Make sure we go to the right section
          while current_section_base_index + current_section_size <= i:
            current_section_base_index += current_section[4]
            section_index += 1
            current_section = report_sections[section_index]
            current_section_size = current_section[4]
            object_list = current_section[3]

          list_body = list_body + '<tr>'
          o = object_list[i - current_section_base_index] # FASTER PERFORMANCE
          real_o = None

          # Define the CSS
          if not (i - start) % 2:
            td_css = 'DataA'
          else:
            td_css = 'DataB'

          list_body = list_body + \
"""<input type="hidden" value="%s" name="%s_uid:list"/>
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""" % ( getattr(o, 'uid', '') , field.id ) # What happens if we list instances which are not instances of Base XXX
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          section_char = ''
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          if render_format == 'list': list_result_item = [] # Start a new item for list render format
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          if report_tree:
            if current_section[1]:
              section_name = current_section[0]
            else:
              section_name = ''
            if current_section[5]:
              if section_name != '':
                section_char = '-'
              list_body = list_body + \
"""<td class="%s" align="left" valign="middle"><a href="portal_selections/foldReport?report_url=%s&form_id=%s&list_selection_name=%s">%s%s%s</a></td>
""" % (td_css, getattr(current_section[3][0],'domain_url',''), form.id, selection_name, '&nbsp;&nbsp;' * current_section[2], section_char, section_name)
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              if render_format == 'list': list_result_item.append(section_name)
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            else:
              if section_name != '':
                section_char = '+'
              list_body = list_body + \
"""<td class="%s" align="left" valign="middle"><a href="portal_selections/unfoldReport?report_url=%s&form_id=%s&list_selection_name=%s">%s%s%s</a></td>
""" % (td_css, getattr(current_section[3][0],'domain_url',''), form.id, selection_name, '&nbsp;&nbsp;' * current_section[2], section_char, section_name)
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              if render_format == 'list': list_result_item.append(section_name)
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          if select:
            if o.uid in checked_uids:
              selected = 'checked'
            else:
              selected = ''
            if section_char != '':
              list_body = list_body + \
"""<td class="%s" width="50" align="center" valign="middle">&nbsp;</td>
""" % (td_css, )
            else:
              list_body = list_body + \
"""<td class="%s" width="50" align="center" valign="middle">&nbsp;
<input type="checkbox" %s value="%s" id="cb_%s" name="uids:list"/></td>
""" % (td_css, selected, o.uid , o.uid)
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          error_list = []
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          for cname in extended_columns:
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            sql = cname[0] # (sql, title, alias)
            alias = cname[2] # (sql, title, alias)
            if '.' in sql:
              property_id = '.'.join(sql.split('.')[1:]) # Only take trailing part
            else:
              property_id = alias
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#            attribute_value = getattr(o, cname_id) # FUTURE WAY OF DOING TGW Brains
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            my_field = None
            tales_expr = None
            if form.has_field('%s_%s' % (field.id, alias) ):
              my_field_id = '%s_%s' % (field.id, alias)
              my_field = form.get_field(my_field_id)
              tales_expr = my_field.tales.get('default', "")
            if tales_expr:
              #
              real_o = o
              if hasattr(o,'getObject'): # we have a line of sql result
                real_o = o.getObject()
              field_kw = {'cell':real_o}
              attribute_value = my_field.__of__(real_o).get_value('default',**field_kw)
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            else:
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              if hasattr(aq_self(o),alias): # Block acquisition to reduce risks
                # First take the indexed value
                attribute_value = getattr(o,alias) # We may need acquisition in case of method call
              else:
  #             MUST IMPROVE FOR PERFORMANCE REASON
  #             attribute_value = 'Does not exist'
                if real_o is None:
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                  try:
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                    real_o = o.getObject()
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                  except:
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                    pass
                if real_o is not None:
                  try:
                    try:
                      attribute_value = getattr(real_o,property_id, None)
                      #LOG('Look up attribute %s' % cname_id,0,str(attribute_value))
                      if not callable(attribute_value):
                        #LOG('Look up accessor %s' % cname_id,0,'')
                        attribute_value = real_o.getProperty(property_id)
                        #LOG('Look up accessor %s' % cname_id,0,str(attribute_value))
                    except:
                      attribute_value = getattr(real_o,property_id)
                      #LOG('Fallback to attribute %s' % cname_id,0,str(attribute_value))
                  except:
                    attribute_value = 'Can not evaluate attribute: %s' % sql
                else:
                  attribute_value = 'Object does not exist'
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            if callable(attribute_value):
              try:
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                try:
                  attribute_value = attribute_value(brain = o, selection = selection)
                except TypeError:
                  attribute_value = attribute_value()
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              except:
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                LOG('ListBox', 0, 'Could not evaluate', error=sys.exc_info())
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                attribute_value = "Could not evaluate"
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            #LOG('ListBox', 0, 'o = %s' % repr(dir(o)))
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            if type(attribute_value) is type(0.0):
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              if sql in editable_column_ids and form.has_field('%s_%s' % (field.id, alias) ):
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                # Do not truncate if editable
                pass
              else:
                attribute_value = "%.2f" % attribute_value
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              td_align = "right"
            elif type(attribute_value) is type(1):
              td_align = "right"
            else:
              td_align = "left"
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            if sql in editable_column_ids and form.has_field('%s_%s' % (field.id, alias) ):
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              key = my_field.id + '_%s' % o.uid
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              if field_errors.has_key(key):
                error_css = 'Error'
                error_message = "<br/>%s" % field_errors[key].error_text  # XXX localization needed
                # Display previous value (in case of error
                error_list.append(field_errors.get(key))
                display_value = REQUEST.get('field_%s' % key, attribute_value)
              else:
                error_css = ''
                error_message = ''
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                #display_value = REQUEST.get('field_%s' % key, attribute_value)
                display_value = attribute_value # XXX Make sure this is ok
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              cell_body = my_field.render(value = display_value, REQUEST = o, key = key)
                                                            # We use REQUEST which is not so good here
                                                            # This prevents from using standard display process
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              list_body = list_body + \
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                  ('<td class=\"%s%s\">%s%s</td>' % (td_css, error_css, cell_body, error_message))
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              # Add item to list_result_item for list render format
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              if render_format == 'list':
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                list_result_item.append(my_field._get_default(self.generate_field_key(), display_value, o))
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            else:
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              # Check if url_columns defines a method to retrieve the URL.
              url_method = None
              for column in url_columns:
                if sql == column[0]:
                  url_method = getattr(o, column[1], '')
                  break
              if url_method is not None:
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                try:
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                  object_url = url_method(brain = o, selection = selection)
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                  list_body = list_body + \
                    ("<td class=\"%s\" align=\"%s\"><a href=\"%s\">%s</a></td>" %
                      (td_css, td_align, object_url, attribute_value))
                except:
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                  LOG('ListBox', 0, 'Could not evaluate url_method %s' % column[1], error=sys.exc_info())
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                  list_body = list_body + \
                    ("<td class=\"%s\" align=\"%s\">%s</td>" % (td_css, td_align, attribute_value) )
              else:
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                # Check if this object provides a specific URL method
                url_method = getattr(o, 'getListItemUrl', None)
                if url_method is None:
                  try:
                    object_url = o.absolute_url() + \
                      '/view?selection_index=%s&selection_name=%s&reset=1' % (i, selection_name)
                    list_body = list_body + \
                      ("<td class=\"%s\" align=\"%s\"><a href=\"%s\">%s</a></td>" %
                        (td_css, td_align, object_url, attribute_value))
                  except:
                    list_body = list_body + \
                      ("<td class=\"%s\" align=\"%s\">%s</td>" % (td_css, td_align, attribute_value) )
                else:
                  try:
                    object_url = url_method(alias, i, selection_name)
                    list_body = list_body + \
                      ("<td class=\"%s\" align=\"%s\"><a href=\"%s\">%s</a></td>" %
                        (td_css, td_align, object_url, attribute_value))
                  except:
                    list_body = list_body + \
                      ("<td class=\"%s\" align=\"%s\">%s</td>" % (td_css, td_align, attribute_value) )
              # Add item to list_result_item for list render format
              if render_format == 'list': list_result_item.append(attribute_value)
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          list_body = list_body + '</tr>'
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          if render_format == 'list':
            list_result.append(list_result_item)

        ###############################################################
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        #
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        # Build statistics
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        #
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        ###############################################################
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        # Call the stat method
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        if show_stat:
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          kw['select_expression'] = select_expression
          selection.edit( params = kw )

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          count_results = selection(selection_method = stat_method,
                          context=here, REQUEST=REQUEST)
          list_body = list_body + '<tr>'
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          if render_format == 'list': list_result_item = []
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          if report_tree:
            list_body += '<td class="Data">&nbsp;</td>'
          if select:
            list_body += '<td class="Data">&nbsp;</td>'
          for n in range((len(extended_columns))):
            try:
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              sql = extended_columns[n][0]
              for column in stat_columns:
                if column[0] == sql:
                  break
              else:
                column = None
              #LOG('ListBox', 0, 'n = %s, extended_columns = %s, stat_columns = %s, column = %s' % (repr(n), repr(extended_columns), repr(stat_columns), repr(column)))
              if column is not None:
                if column[0] == column[1]:
                  alias = extended_columns[n][2]
                  value = getattr(count_results[0],alias,'')
                else:
                  value = getattr(here, column[1])
                  #LOG('ListBox', 0, 'column = %s, value = %s' % (repr(column), repr(value)))
                  if callable(value):
                    try:
                      params = dict(kw)
                      #params['operator'] = stats[n]
                      value=value(**params)
                    except:
                      LOG('ListBox', 0, 'WARNING: Could not call %s with %s: ' % (repr(value), repr(params)), error=sys.exc_info())
                      pass
                if type(value) is type(1.0):
                  list_body += '<td class="Data" align="right">%.2f</td>' % value
                else:
                  list_body += '<td class="Data">' + str(value) + '</td>'
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                if render_format == 'list': list_result_item.append(value)
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              else:
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                list_body += '<td class="Data">&nbsp;</td>'
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                if render_format == 'list': list_result_item.append(None)
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            except:
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              list_body += '<td class="Data">&nbsp;</td>'
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              if render_format == 'list': list_result_item.append(None)
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          list_body += '</tr>'

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        list_html = header + selection_line + list_header + list_search + list_body + footer
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        # Return list of brains here is render_as_list = 1
        if render_format == 'list':
          list_result.append(list_result_item)
          return list_result
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        #Create DomainTree Selector and DomainTree box
        if domain_tree:
          select_tree_options = ''
          for c in domain_root_list:
            if c[0] == selection_domain_path:
              select_tree_options += """<option selected value="%s">%s</option>\n""" % (c[0], c[1])
            else:
              select_tree_options += """<option value="%s">%s</option>\n""" % (c[0], c[1])
          select_tree_header = """<select name="domain_root_url"
onChange="submitAction(this.form,'%s/portal_selections/setDomainRoot')">
        %s</select>""" % (here.getUrl(),select_tree_options)

          try:
            select_tree_body = makeTreeBody(here.unrestrictedTraverse(selection_domain_path),
                 0, max(map(lambda x: len(x), selection_domain_current)), selection_domain_current, form.id, selection_name )
          except KeyError:
            select_tree_body = ''

          select_tree_html = """<!-- Select Tree -->
%s
<table cellpadding="0" border="0">
%s
</table>
"""  % (select_tree_header, select_tree_body )

          return """<!-- Table Wrapping for Select Tree -->
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr><td valign="top">""" + """
%s
</td><td valign="top">
%s
<!-- End of Table Wrapping for Select Tree -->
</td></tr>
</table>""" % (select_tree_html,list_html)

        return list_html

ListBoxWidgetInstance = ListBoxWidget()

class ListBoxValidator(Validator.Validator):
    property_names = Validator.Validator.property_names

    def validate(self, field, key, REQUEST):
        form = field.aq_parent
        # We need to know where we get the getter from
        # This is coppied from ERP5 Form
        here = getattr(form, 'aq_parent', REQUEST)
        columns = field.get_value('columns')
        editable_columns = field.get_value('editable_columns')
        all_editable_columns = field.get_value('all_editable_columns')
        column_ids = map(lambda x: x[0], columns)
        editable_column_ids = map(lambda x: x[0], editable_columns)
        all_editable_column_ids = map(lambda x: x[0], all_editable_columns)
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        selection_name = field.get_value('selection_name')
        selection = here.portal_selections.getSelectionFor(selection_name, REQUEST=REQUEST)
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        params = selection.getSelectionParams()
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        portal_url = getToolByName(here, 'portal_url')
        portal = portal_url.getPortalObject()
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        result = {}
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        error_result = {}
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        listbox_uids = REQUEST.get('%s_uid' % field.id, [])
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        #LOG('ListBox.validate: REQUEST',0,REQUEST)
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        errors = []
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        object_list = []
        # We have two things to do in the case of temp objects,
        # the first thing is to create a list with new temp objects
        # then try to validate some data, and then create again
        # the list with a listbox as parameter. Like this we
        # can use tales expression
        for uid in listbox_uids:
          if str(uid).find('new') == 0:
            list_method = field.get_value('list_method')
            list_method = getattr(here, list_method.method_name)
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            object_list = list_method(REQUEST=REQUEST, **params)
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            break
        listbox = {}
        for uid in listbox_uids:
          if str(uid).find('new') == 0:
            o = None
            for object in object_list:
              if object.getUid()==uid:
                o = object
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            if o is None:
              # First case: dialog input to create new objects
              o = newTempBase(portal, uid[4:]) # Arghhh - XXX acquisition problem - use portal root
              o.uid = uid
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            listbox[uid[4:]] = {}
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            # We first try to set a listbox corresponding to all things
            # we can validate, so that we can use the same list
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            # as the one used for displaying the listbox
            for sql in editable_column_ids:
              alias = '_'.join(sql.split('.'))
              if '.' in sql:
                property_id = '.'.join(sql.split('.')[1:]) # Only take trailing part
              else:
                property_id = alias
              my_field_id = '%s_%s' % (field.id, alias)
              if form.has_field( my_field_id ):
                my_field = form.get_field(my_field_id)
                key = 'field_' + my_field.id + '_%s' % o.uid
                error_result_key = my_field.id + '_%s' % o.uid
                REQUEST.cell = o
                try:
                  value = my_field.validator.validate(my_field, key, REQUEST) # We need cell
                  # Here we set the property
                  listbox[uid[4:]][sql] = value
                except ValidationError, err: # XXXX import missing
                  pass
        # Here we generate again the object_list with listbox the listbox we
        # have just created
        if len(listbox)>0:
          list_method = field.get_value('list_method')
          list_method = getattr(here, list_method.method_name)
          REQUEST.set('listbox',listbox)
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          object_list = list_method(REQUEST=REQUEST,**params)
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        for uid in listbox_uids:
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          if str(uid).find('new') == 0:
            # First case: dialog input to create new objects
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            #o = newTempBase(here, uid[4:]) # Arghhh - XXX acquisition problem - use portal root
            #o.uid = uid
            o = None
            for object in object_list:
              if object.getUid()==uid:
                o = object
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            if o is None:
              # First case: dialog input to create new objects
              o = newTempBase(portal, uid[4:]) # Arghhh - XXX acquisition problem - use portal root
              o.uid = uid
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            result[uid[4:]] = {}
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            for sql in editable_column_ids:
              alias = '_'.join(sql.split('.'))
              if '.' in sql:
                property_id = '.'.join(sql.split('.')[1:]) # Only take trailing part
              else:
                property_id = alias
              my_field_id = '%s_%s' % (field.id, alias)
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              if form.has_field( my_field_id ):
                my_field = form.get_field(my_field_id)
                key = 'field_' + my_field.id + '_%s' % o.uid
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                error_result_key = my_field.id + '_%s' % o.uid
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                REQUEST.cell = o
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                try:
                  value = my_field.validator.validate(my_field, key, REQUEST) # We need cell
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                  result[uid[4:]][sql] = value
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                except ValidationError, err: # XXXX import missing
                  #LOG("ListBox ValidationError",0,str(err))
                  err.field_id = error_result_key
                  errors.append(err)
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          else:
            # Second case: modification of existing objects
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            #try:
            if 1: #try:
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              # We must try this
              # because sometimes, we can be provided bad uids
              o = here.portal_catalog.getObject(uid)
              for sql in editable_column_ids:
                alias = '_'.join(sql.split('.'))
                if '.' in sql:
                  property_id = '.'.join(sql.split('.')[1:]) # Only take trailing part
                else:
                  property_id = alias
                my_field_id = '%s_%s' % (field.id, alias)
                if form.has_field( my_field_id ):
                  my_field = form.get_field(my_field_id)
                  key = 'field_' + my_field.id + '_%s' % o.uid
                  error_result_key = my_field.id + '_%s' % o.uid
                  #if hasattr(o,cname_id): WHY THIS ????
                  # XXX This is not acceptable - we do not calculate things the same way in 2 different cases
                  REQUEST.cell = o # We need cell
                  try:
                    value = my_field.validator.validate(my_field, key, REQUEST) # We need cell
                    error_result[error_result_key] = value
                    try:
                      attribute_value = o.getProperty(property_id)
                    except:
                      attribute_value = getattr(o,property_id, None)
                    if my_field.meta_type == "MultiListField":
                      test_equal = 1
                      # Sometimes, the attribute is not a list
                      # so we need to force update
                      try:
                        for v in attribute_value:
                          if v not in value:
                            test_equal = 0
                      except:
                        test_equal = 0
                      try:
                        for v in value:
                          if v not in attribute_value:
                            test_equal = 0
                      except:
                        test_equal = 0
                    else:
                      test_equal = attribute_value == value
                    if not result.has_key(o.getUrl()):
                      result[o.getUrl()] = {}  # We always provide an empty dict - this should be improved by migrating the test of equality to Bae - it is not the purpose of ListBox to do this probably. XXX
                    if not test_equal:
                      result[o.getUrl()][sql] = value
                  except ValidationError, err: # XXXX import missing
                    #LOG("ListBox ValidationError",0,str(err))
                    err.field_id = error_result_key
                    errors.append(err)
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            #except:
            else:
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              LOG("ListBox WARNING",0,"Object uid %s could not be validated" % uid)
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        if len(errors) > 0:
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            LOG("ListBox FormValidationError",0,str(error_result))
            LOG("ListBox FormValidationError",0,str(errors))
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            raise FormValidationError(errors, error_result)
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        return result

ListBoxValidatorInstance = ListBoxValidator()

class ListBox(ZMIField):
    meta_type = "ListBox"

    widget = ListBoxWidgetInstance
    validator = ListBoxValidatorInstance

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    security = ClassSecurityInfo()
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    security.declareProtected('Access contents information', 'get_value')
    def get_value(self, id, **kw):
      if id == 'default' and kw.get('render_format') in ('list', ):
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        return self.widget.render(self, self.generate_field_key() , None , kw.get('REQUEST'), render_format=kw.get('render_format'))
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      else:
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        return ZMIField.get_value(self, id, **kw)
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# Psyco
import psyco
psyco.bind(ListBoxWidget.render)
psyco.bind(ListBoxValidator.validate)