#30152: MySQL: "Cannot change column 'id': used in a foreign key constraint"
when
altering pk of model with ForeignKey to self
-------------------------------+-------------------------------------
Reporter: Carsten Fuchs | Owner: nobody
Type: Bug | Status: closed
Component: Migrations | Version: 2.2
Severity: Normal | Resolution: needsinfo
Keywords: mysql | Triage Stage: Accepted
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------+-------------------------------------
Changes (by Tim Graham):
* stage: Unreviewed => Accepted
Comment:
Great! I think there are still some unnecessary fields on the models
(DateField, etc) but my guess is the ForeignKey to self plus another model
related to that one (ManyToManyField in this case) are the root causes.
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Ticket URL: <https://code.djangoproject.com/ticket/30152#comment:4>
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