allow to make diff of objects with the one in zodb

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@4965 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/ERP5/Document/BusinessTemplate.py

@@ -3215,6 +3215,12 @@ Business Template is a set of definitions, such as skins, portal types and categ
                 
       modified_object_list = {}
       bt_title = self.getTitle()
+
+      #  can be call to diff two Business Template in template tool
+      bt2 = kw.get('compare_to', None)
+      if  bt2 is not None:
+        installed_bt = bt2
+      else:
         installed_bt = self.portal_templates.getInstalledBusinessTemplate(title=bt_title)
       if installed_bt is None:
         installed_bt_format = 0 # that will not check for modification
@@ -3222,7 +3228,8 @@ Business Template is a set of definitions, such as skins, portal types and categ
         installed_bt_format = installed_bt.getTemplateFormatVersion()
 
       # if reinstall business template, must compare to object in ZODB
-      # and not to those in the installed Business Template because it is itself
+      # and not to those in the installed Business Template because it is itself.
+      # same if we make a diff and selected only one business template
       reinstall = 0      
       if installed_bt == self:
         reinstall = 1
@@ -3233,11 +3240,6 @@ Business Template is a set of definitions, such as skins, portal types and categ
         bt2.build()
         installed_bt = bt2
       
-      #  can be call to diff two Business Template in template tool
-      bt2 = kw.get('compare_to', None)
-      if  bt2 is not None:
-        installed_bt = bt2
-      
       new_bt_format = self.getTemplateFormatVersion()
       if installed_bt_format == 0 and new_bt_format == 0:
         # still use old format, so install everything, no choice
@@ -3259,6 +3261,7 @@ Business Template is a set of definitions, such as skins, portal types and categ
         old_item = getattr(installed_bt, item_name, None)
         if new_item is not None:
           if old_item is not None:
+            LOG('compare object item', 0, item_name)
             modified_object = new_item.preinstall(context=local_configuration, installed_bt=old_item)
             if len(modified_object) > 0:
               modified_object_list.update(modified_object)
@@ -3759,8 +3762,18 @@ Business Template is a set of definitions, such as skins, portal types and categ
 
       new_bt =self
       # compare with a given business template
+      compare_to_zodb = 0
       bt2_id = kw.get('compare_with', None)
       if bt2_id is not None:
+        if bt2_id == self.getId():
+          compare_to_zodb = 1
+          installed_bt = self.getInstalledBusinessTemplate(title=self.getTitle())
+          bt2 = self.portal_templates.manage_clone(ob=installed_bt, id='installed_bt_for_diff')
+          # update portal types properties to get last modifications
+          bt2.getPortalTypesProperties()
+          bt2.edit(description='tmp bt generated for diff')
+          installed_bt = bt2
+        else:
           installed_bt = self.portal_templates._getOb(bt2_id)
       else:
         installed_bt = self.getInstalledBusinessTemplate(title=self.getTitle())
@@ -3769,6 +3782,8 @@ Business Template is a set of definitions, such as skins, portal types and categ
       
       new_item = getattr(new_bt, item_name)
       installed_item = getattr(installed_bt, item_name)
+      if compare_to_zodb:
+        installed_item.build(self)
       new_object = new_item._objects[object_id]
       installed_object = installed_item._objects[object_id]
       # make diff
@@ -3821,6 +3836,9 @@ Business Template is a set of definitions, such as skins, portal types and categ
         else:
           diff_msg = 'No diff'                
 
+      if compare_to_zodb:
+        self.portal_templates.manage_delObjects(ids=['installed_bt_for_diff'])
+      
       return diff_msg