Uploaded image for project: 'XWiki Platform'
  1. XWiki Platform
  2. XWIKI-11800

Cannot change a list property from multiple select to single select if there is an instance that has no value selected

          Details

          • Type: Bug
          • Status: Closed
          • Priority: Critical
          • Resolution: Fixed
          • Affects Version/s: 6.2.5
          • Fix Version/s: 6.2.6, 6.4.2, 7.0-milestone-2
          • Component/s: Old Core
          • Labels:
            None
          • Tests:
            Unit
          • Development Priority:
            High
          • Difficulty:
            Trivial
          • Documentation:
            N/A
          • Documentation in Release Notes:
            N/A
          • Similar issues:

            Description

            Follow this steps to reproduce:

            1. Create a class with only one property of type Database List
            2. Configure this property as multiple select
            3. Create a new page and add an object of this class but don't select any value for the Database List property
            4. Edit the class again and change the property from multiple select to single select. Save

            You get:

            A problem occurred while trying to process your request. Please contact the webmaster if this happens again.

            And the exception is:

            Caused by: java.lang.ClassCastException: com.xpn.xwiki.objects.ListProperty$NotifyList cannot be cast to java.lang.String
at com.xpn.xwiki.objects.BaseStringProperty.setValue(BaseStringProperty.java:40)
at com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiDoc(XWikiHibernateStore.java:666)
... 52 more

              Attachments

                Issue Links

                is related to

                Bug - A problem which impairs or prevents the functions of the product. XWIKI-299 Changing property layout of a list property in a class doesn' work (multiple select yes/no)

                • Major - Major loss of function.
                • Closed

                Bug - A problem which impairs or prevents the functions of the product. XWIKI-6566 Changing the multiple select attribute of a ListProperty in an XWiki class occasionally causes a document to become unsavable.

                • Major - Major loss of function.
                • Closed

                Bug - A problem which impairs or prevents the functions of the product. XWIKI-4825 Altering the storage properties of a DBList or DBTreeList property sometimes fails to save the changes

                • Minor - Minor loss of function, or other problem where easy workaround is present.
                • Closed
                relates to

                Bug - A problem which impairs or prevents the functions of the product. XWIKI-11806 Changing (list) property storage type in class editor fails when object instances exist in the class document

                • Minor - Minor loss of function, or other problem where easy workaround is present.
                • Closed

                  Activity

                    People

                    • Assignee:
                      mflorea Marius Dumitru Florea
                      Reporter:
                      mflorea Marius Dumitru Florea
                    • Votes:
                      0 Vote for this issue
                      Watchers:
                      1 Start watching this issue

                      Dates

                      • Created:
                        Updated:
                        Resolved: