Changeset 4484 for waeup

Timestamp:

29 Jul 2009, 12:25:12 (15 years ago)

Author:

uli

Message:

• Fix method to delete course references in certcourses.

• Use catalog to find references to deleted courses in certcourses. These certcourses are deleted as well (as there is no course to reference any more). Seems to work perfectly with catalogs.

File:

• waeup/branches/ulif-rewrite/src/waeup/university/certificate.py (modified) (3 diffs)

waeup/branches/ulif-rewrite/src/waeup/university/certificate.py

@@ -3 +3 @@
 import grok
 from hurry.workflow.interfaces import IWorkflowInfo, IWorkflowState
+from zope.app.catalog.interfaces import ICatalog
+from zope.component import getUtility
 from zope.component.interfaces import IFactory
 from zope.interface import implementedBy
@@ -52 +54 @@
         """Delete a course denoted by its code.
         """
-        if code in self.keys():
-            del self[code]
+        for key in self.keys():
+            if self[key].getCourseCode != code:
+                continue
+            del self[key]
             self._p_changed = True
         return
@@ -104 +108 @@
        certificatecontainer are removed.
     """
-    old_parent = event.oldParent
     code = course.code
-    # Try to find a nearby certificate container...
-    dept = getattr(old_parent, '__parent__', None)
-    if not IDepartment.providedBy(dept):
-        # Hm, looks like this course was not part of a department...
-        return
-    certcontainer = dept.certificates
-    for cert in certcontainer.values():
-        # Loop through all certificatecourses in this certificate...
-        if code in cert.keys():
-            del cert[code]
-            cert._p_changed = True
 
+    # Find all certcourses that reference the given course...
+    cat = getUtility(ICatalog, name='certcourses_catalog')
+    results = cat.searchResults(course_code=(code, code))
+    for certcourse in results:
+        # Remove that reference...
+        cert = certcourse.__parent__
+        cert.delCourseRef(code)
+        cert._p_changed = True
+    return