#34789: Admin filter_horizontal shows item in "Chosen" column after being added
through a Foreign Key field of the same model.
-------------------------------+--------------------------------------
Reporter: devin13cox | Owner: nobody
Type: Bug | Status: new
Component: contrib.admin | Version: 4.2
Severity: Normal | Resolution:
Keywords: | Triage Stage: Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 1 | UI/UX: 1
-------------------------------+--------------------------------------
Comment (by devin13cox):
Replying to [comment:2 Natalia Bidart]:
> Hello! Thank you for your report. Could you please post your admin.py
definition as well as your models.py (reduced to this example)? So we can
try to reproduce and triage accordingly. Thanks!
Of course, here is the model (reduced to the example):
{{{
class Workflow(models.Model):
initial = models.ForeignKey('workflow.State', blank=True, null=True,
related_name="workflow_initial", on_delete=models.SET_NULL)
class Transition(models.Model):
source = models.ManyToManyField(State,
related_name="transition_source")
target = models.ForeignKey(State, related_name="transition_target",
on_delete=models.CASCADE)
class State(models.Model):
label = models.CharField(max_length=255)
}}}
And the admin (also reduced):
{{{
class WorkflowAdmin(SortableAdminBase, admin.ModelAdmin):
inlines = [TransitionInline, ]
fieldsets = (
(None, {
'fields': ["initial"],
}),
)
class TransitionInline(SortableStackedInline, admin.StackedInline):
model = Transition
extra = 0
filter_horizontal = ['source']
fieldsets = (
(' ', {
'classes': ('collapse',),
'fields': ('source', 'target')
}),
)
class StateAdmin(admin.ModelAdmin):
fieldsets = (
(None, {
'fields': ("label",),
}),
)
}}}
As you can see, the model of interest is Transition and in the admin
console it is represented through as an inline for another model called
Workflow. I tried to remove any extra information to avoid confusion (part
of this removal was my_order fields in case there is confusion as to why
Sortable is being used).
--
Ticket URL: <https://code.djangoproject.com/ticket/34789#comment:3>
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