#30520: Extra field of ModelForm without label, raises error in InlineModelAdmin
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Reporter: George Tantiras | Owner: nobody
Type: Uncategorized | Status: new
Component: Uncategorized | Version: 2.2
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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As per [https://stackoverflow.com/questions/56156039/extra-field-of-
modelform-without-label-does-not-render-in-inlinemodeladmin this] and
[https://stackoverflow.com/questions/54511865/django-extra-fields-in-
custommodelform-is-giving-unable-to-lookuup-error-i that] S.O. issues,
although a ModelForm with an extra field which has no label works at the
model's change view, it raises an error when the same ModelForm is used
for an inline:
models.py:
{{{#!python
class Parent(models.Model):
pass
class Child(models.Model):
parent = models.ForeignKey(Parent, on_delete=models.PROTECT)
}}}
forms.py:
{{{#!python
class ChildForm(forms.ModelForm):
extra_field = forms.CharField()
class Meta:
model = Child
fields = '__all__'
}}}
admin.py:
{{{#!python
@admin.register(models.Child)
class ChildAdmin(admin.ModelAdmin):
'''The ModelForm renders as expected'''
form = forms.ChildForm
class ChildInline(admin.TabularInline):
'''Here the ModelForm without a label in the extra field, will raise
error'''
model = models.Child
form = forms.ChildForm
@admin.register(models.Parent)
class ParentAdmin(admin.ModelAdmin):
inlines = (ChildInline,)
}}}
{{{#!python
File "/home/venv/lined/lib/python3.7/site-
packages/django/contrib/admin/utils.py", line 364, in label_for_field
raise AttributeError(message)
AttributeError: Unable to lookup 'extra_field' on Child or
ChildInline
}}}
Full error message:
https://pastebin.com/89MUGchf
--
Ticket URL: <https://code.djangoproject.com/ticket/30520>
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