Added examples to Zope. Finally Zope comes with some simple example...

Added examples to Zope. Finally Zope comes with some simple example applications. The current examples include automatic navigation devices, a guestbook, a file library and a shopping cart. The examples make use of new features including ZPT (including macros) and sessions.

I set things up to automatically create an Examples folder in the root if one doesn't already exist. I don't know if this is the right thing to do or not. Maybe folks should have to add examples from the product add list.

If you would like to contribute example applications just let me know. I'm open to contributions.

doc/CHANGES.txt

@@ -49,6 +49,9 @@ Zope Changes
 	- temporary folder
 
       - Zope will create default sessioning objects on startup
+
+      - Zope will create an Examples folder on startup. This folder
+      contains a collection of simple example applications.
   
     Bugs Fixed
     

lib/python/App/dtml/zope_quick_start.dtml

@@ -52,6 +52,14 @@ begin working with the tutorial.
 </p>
 </li>
 
+<li>
+<p>
+Check out the <b>new</b> <a href="Examples">example Zope
+applications</a>. These examples show you simple working Zope
+applications that you can copy and modify.
+</p>
+</li>
+
 <li>
 <p>
 Go to the main <a href="http://www.zope.org/Documentation/" target="_new">

lib/python/OFS/Application.py

@@ -84,8 +84,8 @@
 ##############################################################################
 __doc__='''Application support
 
-$Id: Application.py,v 1.161 2001/11/13 22:02:47 matt Exp $'''
-__version__='$Revision: 1.161 $'[11:-2]
+$Id: Application.py,v 1.162 2001/11/17 00:00:20 amos Exp $'''
+__version__='$Revision: 1.162 $'[11:-2]
 
 import Globals,Folder,os,sys,App.Product, App.ProductRegistry, misc_
 import time, traceback, os, string, Products
@@ -473,6 +473,14 @@ def initialize(app):
         get_transaction().commit()
         del sdm
 
+    # b/c: Ensure that there's an Examples folder with examples
+    if not hasattr(app, 'Examples'):
+        examples=app._p_jar.importFile(
+            os.path.join(Globals.data_dir, 'Examples.zexp'),
+            clue='Added Examples folder')
+        app._setObject('Examples', examples)
+        del examples
+
     # b/c: Ensure that Owner role exists.
     if hasattr(app, '__ac_roles__') and not ('Owner' in app.__ac_roles__):
         app.__ac_roles__=app.__ac_roles__ + ('Owner',)