Bug #35830 deleting a fk connection in EER model causes exception
Submitted: 4 Apr 2008 13:42 Modified: 8 Apr 2008 14:27
Reporter: Nick Warrington Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Workbench Severity:S3 (Non-critical)
Version:5.0.15 OS:Windows (XP SP2)
Assigned to: CPU Architecture:Any
Tags: EER, exception, foreign key

[4 Apr 2008 13:42] Nick Warrington 
Description:
I deleted the foreign key relationship in the table editor between two existing tables in my schema. The corresponding EER diagram did not automatically refresh. I right clicked the foreign key relationship on the diagram to bring up the context menu and selected delete. This caused an exception to be thrown. (I assume because the actual relationship no longer existed in the model, but that's speculation on my part)

How to repeat:
Create two tables, create a fk between them, show the tables on you EER diagram to confirm you have the relationship shown on the diagram. Delete the relationship from the table editor and then delete the same relationship from the EER diagram.

Suggested fix:
Refresh the EER diagram after modifying a table, if the entity modified is shown in the diagram.
[4 Apr 2008 16:53] Johannes Taxacher 
this issue has already been fixed in our repository. (tested SVN Rev 2954)
[8 Apr 2008 14:27] MC Brown 
A note has been added to the 5.0.17 changelog: 

When modifying an existing foreign key relationship, the generated ALTER script did not reflect the modification.