#28197 Sorting a composition table by a column with SelectField leads to ClassCastException

Enhancement

Major

#26586

Direct updating of calculated attributes in forms and grids when editing input values

#26702

TLScript: sendMail() function

#27216

Attribute annotation "fallback value" as replacement in case of empty value

#27457

Conditional formatting in tables/grids/forms

#27784

Java 17 as a development environment

#28122

Layout editor: Generalized form templates

#28151

TLScript: new ParseCSV function

#28263

Allow to specify the deletion policy for a reference in the model

Detail

#27920

Removal of old themes and adaptation to the core theme

#28144

Display button line via template, no more button lines in administration views

#28214

Update pac4j-oidc

#28292

Set tl-license-professional version in tl-parent-all

Nice to have

#28282

tl-demo: Example for TreeGrid with synthetic root node

Bugfix

Major

#28197

Sorting a composition table by a column with SelectField leads to ClassCastException

Detail

#27787

Missing context suggestions for TL script functions with underscore in the name

#28071

Deletion of inline composition elements in the form fails if deleted object triggers further deletions

#28175

Script Recorder: Saving scripts does not display the file name field

#28184

Eclipse settings: Update of the webfragment version to 6.0

#28283

Migration processor for cleaning up multiple references to the same composition

#28288

Dynamic visibility requires fields for dependent attributes

Bugfix

Major

#28197

Sorting a composition table by a column with SelectField leads to ClassCastException

Composition TableSort

If a composition attribute is displayed as a table in a form, sorting this table by columns containing a tl:SelectField fails. An error message is displayed and sorting is deactivated for this table.

The problem can be reproduced in the demo with a suitable model and form. On the demo test server, for example, in the Technical Demo > Tests > Jan view when sorting by the "Select" column.

Analysis

The cause appears to be that the SelectField contains a SingletonList as a value. However, the tl:WrapperNameComparator expects a single tl:TLObject in the signature of its compare method.

Stacktrace

Caused by: java.lang.ClassCastException: class java.util.Collections$SingletonList cannot be cast to class com.top_logic.model.TLObject at com.top_logic.knowledge.wrap.WrapperNameComparator.compare(WrapperNameComparator.java:27) at com.top_logic.basic.col.ComparatorProxy.compare(ComparatorProxy.java:110) at com.top_logic.basic.col.NullSafeComparator.compare(NullSafeComparator.java:108) at com.top_logic.basic.col.MappedComparator.compare(MappedComparator.java:150) at java.base/java.util.TimSort.countRunAndMakeAscending(TimSort.java:355) at java.base/java.util.TimSort.sort(TimSort.java:220) at java.base/java.util.Arrays.sort(Arrays.java:1307) at java.base/java.util.ArrayList.sort(ArrayList.java:1721) at java.base/java.util.Collections.sort(Collections.java:179) at com.top_logic.layout.table.model.SimpleTableModelStructure.revalidateOrder(SimpleTableModelStructure.java:136) at com.top_logic.layout.table.model.ObjectTableModel.revalidateOrder(ObjectTableModel.java:180) at com.top_logic.layout.table.model.AbstractObjectTableModel.setOrder(AbstractObjectTableModel.java:84) at com.top_logic.layout.table.TableViewModel.validate(TableViewModel.java:1355) ... 53 more

test

/com.top_logic.demo/src/test/java/test/com/top_logic/demo/scripted/model/attribute/composition/TestSortingCompositionTable.script.xml