[jira] Commented: (CAY-1205) toOne change + rename field leads to project that doesn't validate anymore

["Andrey Razumovsky (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CAY-1205?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12707975#action_12707975 ] 

Andrey Razumovsky commented on CAY-1205:
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The actual reason of the problem is that Cayenne in DbEntity.dbRelationshipChanged() changes path of ALL rels in map with same name, which is obviously incorrect. 
I actually don't understand why ObjRelationship uses String representation of the path instead-of references (List<DbRelationship>). I could try reconsider inner representation of ObjRelationship if noone minds. 
Also note that currently NamingStrategy only acts withing reverse-engineering, therefore exists Error 1 mentioned here.

> toOne change + rename field leads to project that doesn't validate anymore
> --------------------------------------------------------------------------
>
>                 Key: CAY-1205
>                 URL: https://issues.apache.org/jira/browse/CAY-1205
>             Project: Cayenne
>          Issue Type: Bug
>          Components: CayenneModeler GUI
>    Affects Versions: 3.0M5
>            Reporter: Joseph Schmidt
>            Priority: Critical
>
> Cayenne modeler seems to behave very strange after changing the relationship type from toMany at toOne: when doing a relationship renamename, it does not validate anymore. It complaints that "ObjRelationship xxx has no DbRelationship mapping", but there is - i.e. all names are consistent.
> Scenario:
> - reverse engineer a database with many FKs .
> - set for some db entities the relationship from toMany to toOne (since they're supposed to be one to one).
> - Error 1: Cayenne Modeler doesn't seem to pick this change with the "smart naming strategy" - the field names still remain at plural (exactly how were generated during the reverse engineering process)
> - trying to manually change those field names from plural to singular from
> - Error 2: project does not validate anymore after this (even if every renaming was done consistently in DB and OBJ relationships too).
> Other usability problem:
> - in the Attributes tab of an entity, I can see the corresponding DB fields (so I know it was selected correctly), but in the relationships entity tab I can't see this anymore :(, so I can't possibly know why is cayenne complaining about validity (a visual inspection of all fields in CM shows that it should be correct)  :(.
> Also the Log Console shows no errors - only the usual blue logging messages.
> What can I do? 
> thanks,
> Joseph.

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