#29529: Allow FilePathField path to accept a callable.
-------------------------------------+-------------------------------------
     Reporter:  Sebastiaan Arendsen  |                    Owner:  Vasyl
                                     |  Dizhak
         Type:  New feature          |                   Status:  assigned
    Component:  Database layer       |                  Version:  master
  (models, ORM)                      |
     Severity:  Normal               |               Resolution:
     Keywords:  migration,           |             Triage Stage:  Accepted
  filepathfield, makemigrations      |
    Has patch:  1                    |      Needs documentation:  0
  Needs tests:  0                    |  Patch needs improvement:  1
Easy pickings:  1                    |                    UI/UX:  0
-------------------------------------+-------------------------------------
Changes (by Clint Dunn):

 * cc: Clint Dunn (added)


Comment:

 I think that Nicolas Noe's solution,
 [https://github.com/django/django/pull/10299 PR], was correct.  The model
 field can accept a callable as it is currently implemented. If you pass it
 a callable for the path argument it will correctly use that fully
 qualified function import path in the migration. The problem is when you
 go to actually instantiate a FilePathField instance, the FilePathField
 form does some type checking and gives you one of these
 {{{
 TypeError: scandir: path should be string, bytes, os.PathLike or None, not
 function
 }}}

 This can be avoided by evaluating the path function first thing in the
 field form {{{__init__}}} function, as in the pull request. Then
 everything seems to work fine.

-- 
Ticket URL: <https://code.djangoproject.com/ticket/29529#comment:13>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.

-- 
You received this message because you are subscribed to the Google Groups 
"Django updates" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
To post to this group, send email to [email protected].
To view this discussion on the web visit 
https://groups.google.com/d/msgid/django-updates/067.00b52aa0bd78c565d5a542dc22b91a36%40djangoproject.com.
For more options, visit https://groups.google.com/d/optout.

Reply via email to