[magnolia-dev] [JIRA] (MGNLUI-3473) Tranformer for TwinColumnField: Provide transformers alike the DelegatingMultiValueFieldTransformer and DelegatingMultiValueSubnodeTransformer for the TwinColumnField

[JIRA (on behalf of Christian Ringele)]

Title: Message Title

Christian Ringele created an issue   Magnolia UI / MGNLUI-3473 Tranformer for TwinColumnField: Provide transformers alike the DelegatingMultiValueFieldTransformer and DelegatingMultiValueSubnodeTransformer for the TwinColumnField Issue Type: Improvement Affects Versions: 5.3.9 Assignee: Unassigned Components: forms Created: 25/Jun/15 2:46 PM Labels: support Priority: Neutral Reporter: Christian Ringele Security Level: Public The TwinColumnField (actually a ComboBox) stores the data by default into a JCR MultiValue property. Same as the as the MultiField does by default. There is also the need for TwinColumnField to have this data stored different, into sub nodes etc as the DelegatingMultiValueFieldTransformer and DelegatingMultiValueSubnodeTransformer for the MultiField does. But the two Tramsformers DelegatingMultiValueFieldTransformer and DelegatingMultiValueSubnodeTransformer of the MultiField won't work for the TwinColumnField: Caused by: com.vaadin.data.util.converter.Converter$ConversionException: Unable to convert value of type com.vaadin.data.util.PropertysetItem to presentation type interface java.util.Set. No converter is set and the types are not compatible. Finally triggered, by a Type missmatch as the MultiField operates on Type PropertysetItem and the TwinColumn on a Set (LinkedHashSet in the end), in: com.vaadin.ui.AbstractField.setPropertyDataSource(Property) line 623 setConverter(newDataSource.getType()); Creating a custom Transform for this is not an easy task, the customer gave up because its too time intensive. He switcher to a custom SelectField using MultiValues. But the TwinCol would have matched perfect his use case (a very long list to choose from). Add Comment   This message was sent by Atlassian JIRA (v6.4.7#64022-sha1:4cb2968) ---------------------------------------------------------------- For list details, see: http://www.magnolia-cms.com/community/mailing-lists.html Alternatively, use our forums: http://forum.magnolia-cms.com/ To unsubscribe, E-mail to: <dev-list-unsubscr...@magnolia-cms.com> ----------------------------------------------------------------