#27249: IntegrityError when using ManyToManyField.add() with a value of 
incorrect
type
-------------------------------------+-------------------------------------
     Reporter:  Sjoerd Job Postmus   |                    Owner:  nobody
         Type:                       |                   Status:  new
  Cleanup/optimization               |
    Component:  Database layer       |                  Version:  master
  (models, ORM)                      |
     Severity:  Normal               |               Resolution:
     Keywords:  manytomanyfield,     |             Triage Stage:  Accepted
  integrityerror                     |
    Has patch:  0                    |      Needs documentation:  0
  Needs tests:  0                    |  Patch needs improvement:  0
Easy pickings:  0                    |                    UI/UX:  0
-------------------------------------+-------------------------------------
Changes (by Tim Graham):

 * needs_better_patch:   => 0
 * needs_tests:   => 0
 * needs_docs:   => 0
 * type:  Uncategorized => Cleanup/optimization
 * stage:  Unreviewed => Accepted


Comment:

 I guess as long as the performance penalty isn't too large, a possibility
 could be to call `Field.to_python()` on the input.

--
Ticket URL: <https://code.djangoproject.com/ticket/27249#comment:1>
Django <https://code.djangoproject.com/>
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