#36468: Popup stays blank after adding a related object when filter_horizontal
is
used
-------------------------------------+-------------------------------------
Reporter: Juan Rocha | Owner: (none)
Type: Bug | Status: closed
Component: contrib.admin | Version: 5.2
Severity: Normal | Resolution:
| worksforme
Keywords: filter_horizontal; | Triage Stage:
SelectBox; add_to_cache; | Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Comment (by Mark):
Hello Natalia und Juan,
I stumbled accross the same Problem, but the Example Juan suggested did
not work for me either.
In my case, the '+' Popup needs to be triggered from within an inline
Form. A minimal Example would look like this
Models:
{{{
from django.db import models
class Book(models.Model):
title = models.CharField()
class Article(models.Model):
title = models.CharField()
books = models.ManyToManyField(Book, blank=True)
class Author(models.Model):
name = models.CharField()
class Feature(models.Model):
title = models.CharField()
author = models.ForeignKey(Author, on_delete=models.CASCADE)
article = models.ForeignKey(Article, on_delete=models.CASCADE)
}}}
Admin:
{{{
from django.contrib import admin
from .models import Article, Author, Book, Feature
class FeatureInline(admin.TabularInline):
model = Feature
@admin.register(Article)
class ArticleAdmin(admin.ModelAdmin):
inlines = [FeatureInline]
filter_horizontal = ["books"]
@admin.register(Author)
class AuthorAdmin(admin.ModelAdmin):
pass
@admin.register(Book)
class BookAdmin(admin.ModelAdmin):
pass
@admin.register(Feature)
class FeatureAdmin(admin.ModelAdmin):
pass
}}}
Trying to add an author in the Feature Inline will produce the bug
described by Juan.
A fix would be, to check, if the select input is managed by the SelectBox
(~ it has been initialized) in RelatedObjectLookups.js (line 114)
{{{
if (window.SelectBox !== undefined && !SelectBox.cache[currentSelect.id]
&& SelectBox.cache[select.id]) {
...
}
}}}
--
Ticket URL: <https://code.djangoproject.com/ticket/36468#comment:3>
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