Changeset 7937 for main/waeup.kofa/trunk

Timestamp:

21 Mar 2012, 16:50:51 (13 years ago)

Author:

Henrik Bettermann

Message:

Add method to check constraints objects must fulfill before being updated. This method is needed for updating verdicts and validating course lists of students.

File:

• main/waeup.kofa/trunk/src/waeup/kofa/utils/batching.py (modified) (2 diffs)

main/waeup.kofa/trunk/src/waeup/kofa/utils/batching.py

@@ -187 +187 @@
         """
         raise NotImplementedError('method not implemented')
+
+    def checkConstraints(self, obj, row, site):
+        """Checks constraints the object must fulfill
+        before being updated.
+        """
+        return False
 
     def updateEntry(self, obj, row, site):
@@ -327 +333 @@
                         "Cannot update: no such entry.")
                     continue
+                update_errors = self.checkConstraints(obj, row, site)
+                if update_errors is not False:
+                    num_warns += 1
+                    self.writeFailedRow(
+                        failed_writer, string_row, update_errors)
+                    continue
                 self.updateEntry(obj, row, site)
             finished_writer.writerow(string_row)