#23131: Potential problems with  field callables copyed to migrations
-------------------------------+----------------------
     Reporter:  riklaunim      |      Owner:  nobody
         Type:  Uncategorized  |     Status:  new
    Component:  Migrations     |    Version:  1.7-rc-1
     Severity:  Normal         |   Keywords:
 Triage Stage:  Unreviewed     |  Has patch:  0
Easy pickings:  0              |      UI/UX:  0
-------------------------------+----------------------
 Model fields support callables in few places, like:
 {{{
 image = models.ImageField(db_index=True, upload_to=upload_path,
 blank=True)
 }}}
 where '''upload_path''' is a function. Migrating model with such field
 will give:

 {{{
  ('image', models.ImageField(blank=True,
 upload_to=my_app.models.upload_path)),
 }}}


 That can easily cause problems. Future changes to the code (like different
 callable name) would break old migrations (which then would break tests).
 Does migrations must copy everything?

-- 
Ticket URL: <https://code.djangoproject.com/ticket/23131>
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