#31449: Autocomplete dosnot work when ForeignKey to_field is not pk
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Reporter: 007 | Owner: nobody
Type: Bug | Status: assigned
Component: contrib.admin | Version: master
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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if a ForeignKey field with to_field (not pk), and the field set to
autocomplete_fields.
form will get pk not to_filed_value when edit model in change_view.
example:
ObjectC field a in AutocompleteSelect will got pk not code. save fail
models:
{{{
class ObjectA(models.Model):
code = models.CharField(verbose_name='code', max_length=32,
unique=True)
name = models.CharField(verbose_name='name', max_length=32)
def __str__(self):
return self.name
class ObjectB(models.Model):
name = models.CharField(verbose_name='name', max_length=32)
a = models.ForeignKey(ObjectA, on_delete=models.CASCADE,
related_name="+")
ma = models.ManyToManyField(ObjectA)
def __str__(self):
return self.name
class ObjectC(models.Model):
name = models.CharField(verbose_name='name', max_length=32)
a = models.ForeignKey(ObjectA, on_delete=models.CASCADE,
to_field='code', related_name="+")
ma = models.ManyToManyField(ObjectA, through='ObjectCtoA')
def __str__(self):
return self.name
class ObjectCtoA(models.Model):
c = models.ForeignKey(ObjectC, on_delete=models.CASCADE,
related_name="+")
a = models.ForeignKey(ObjectA, on_delete=models.CASCADE,
to_field='code', related_name="+")
class Meta:
auto_created = True
}}}
admin:
{{{
class AdminA(admin.ModelAdmin):
list_display = ('id', 'code', 'name')
search_fields = ('code', 'name')
class AdminB(admin.ModelAdmin):
list_display = ('id', 'name', 'a')
autocomplete_fields = ('a', 'ma')
class AdminC(admin.ModelAdmin):
list_display = ('id', 'name', 'a')
autocomplete_fields = ('a', 'ma')
site.register(models.ObjectA, AdminA)
site.register(models.ObjectB, AdminB)
site.register(models.ObjectC, AdminC)
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/31449>
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