Changeset 1551 for trunk/pylucid/PyLucid/db/page.py

Timestamp:

05/02/08 16:47:16 (23 months ago)

Author:

JensDiemer

Message:

update preferences:

• move the preferences form from the plugin module into the plugin config modul
• a plugin must not use try...except to get the preferences
• update all modules around the plugin install/deinstall etc.
• detect_page used the system_settings "index_page" value (setup a other default index page works!)

Files:

• trunk/pylucid/PyLucid/db/page.py (modified) (2 diffs)

trunk/pylucid/PyLucid/db/page.py

@@ -20 +20 @@
 #      page-ID  <-> parant-ID relation?
 #      url data for every page?
+
+from django import newforms as forms
+from django.newforms.util import ValidationError
+from django.utils.translation import ugettext as _
 
 from PyLucid.models import User, Page
@@ -129 +133 @@
     return sub_pages
 
+#______________________________________________________________________________
+# newforms Page choice
+"""
+# usage:
 
+from PyLucid.db.page import PageChoiceField, get_page_choices
+class MyForm(forms.Form):
+    ...
+    page = PageChoiceField(widget=forms.Select(choices=get_page_choices()))
+    ...
+"""
+
+class PageChoiceField(forms.IntegerField):
+    def clean(self, page_id):
+        """
+        returns the parent page instance.
+        Note:
+            In PyLucid.models.Page.save() it would be checkt if the selected
+            parent page is logical valid. Here we check only, if the page with
+            the given ID exists.
+        """
+        # let convert the string into a integer:
+        page_id = super(PageChoiceField, self).clean(page_id)
+
+        if page_id == 0:
+            # assigned to the tree root.
+            return None
+
+        try:
+            #page_id = 999999999 # Not exists test
+            page = Page.objects.get(id=page_id)
+        except Exception, msg:
+            raise ValidationError(_(u"Wrong parent POST data: %s" % msg))
+        else:
+            return page_id
+
+
+def get_page_choices():
+    """
+    generate a verbose page name tree for the parent choice field.
+    """
+    page_list = flat_tree_list()
+    choices = [(0, "---[root]---")]
+    for page in page_list:
+        choices.append((page["id"], page["level_name"]))
+    return choices