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https://issues.apache.org/jira/browse/CAY-1891?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15972927#comment-15972927
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ASF GitHub Bot commented on CAY-1891:
-------------------------------------
Github user asfgit closed the pull request at:
https://github.com/apache/cayenne/pull/200
> Add To-Many / To-One Warnings to Cayenne Modeler
> ------------------------------------------------
>
> Key: CAY-1891
> URL: https://issues.apache.org/jira/browse/CAY-1891
> Project: Cayenne
> Issue Type: Improvement
> Components: Modeler
> Environment: All platforms, affects versions of the modeler.
> Reporter: Michael Gentry
> Priority: Minor
>
> Cayenne Modeler should issue a warning when you have the To-Many checkbox
> checked on both sides of a relationship in the DbEntity section. When the
> checkbox is selected on both sides, which isn't a valid combination, Cayenne
> gets confused and can insert NULLs for FKs and orphan records.
> See:
> http://mail-archives.apache.org/mod_mbox/cayenne-dev/201311.mbox/%3CCAA-upzrZNG-OxN1dpTbLAqEx_tW26twkc%3DM0pwDQWNM%2Btzjg9g%40mail.gmail.com%3E
> Also, Cayenne Modeler should issue a warning when both sides of the
> relationship are to-one (assuming To-Dependent PK isn't checked).
> See:
> http://mail-archives.apache.org/mod_mbox/cayenne-dev/201311.mbox/%3CCAA-upzrNYock0PtkmT=5H7=zktjhdst_egoxqeyner7tdnz...@mail.gmail.com%3E
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