Add admin actions to change form page in all models

froide/helper/templates/admin/change_form.html

@@ -0,0 +1,17 @@
+{% extends "admin/change_form.html" %}
+{% load i18n admin_urls admin_action_helper %}
+{% block object-tools %}
+    {{ block.super }}
+    {% if not add %}
+        {% render_admin_action_form adminform.model_admin original as action_form %}
+        {% if action_form %}
+            <form class="submit-row"
+                  action="{% url opts|admin_urlname:'changelist' %}"
+                  method="post">
+                {% csrf_token %}
+                {{ action_form }}
+                <input type="submit" value="{% translate "Go" %}">
+            </form>
+        {% endif %}
+    {% endif %}
+{% endblock object-tools %}

froide/helper/templatetags/admin_action_helper.py

@@ -0,0 +1,26 @@
+from django import forms, template
+from django.contrib.admin.helpers import ACTION_CHECKBOX_NAME
+
+register = template.Library()
+
+
+class ActionForm(forms.Form):
+    action = forms.ChoiceField()
+
+    def __init__(self, *args, **kwargs):
+        actions = kwargs.pop("actions")
+        obj_id = kwargs.pop("object_id")
+        super().__init__(*args, **kwargs)
+        self.fields["action"].choices = actions
+        self.fields[ACTION_CHECKBOX_NAME] = forms.CharField(widget=forms.HiddenInput)
+        self.fields[ACTION_CHECKBOX_NAME].initial = obj_id
+
+
+@register.simple_tag(takes_context=True)
+def render_admin_action_form(context, model_admin, obj):
+    request = context["request"]
+    choices = model_admin.get_action_choices(request)
+    if len(choices) < 3:  # ignore blank choice and default delete action
+        return
+    form = ActionForm(object_id=obj.id, actions=choices)
+    return form

froide/settings.py

@@ -26,16 +26,16 @@ class Base(Configuration):
             "django.contrib.sites",
             "django.contrib.messages",
             "django.contrib.staticfiles",
+            # overwrite admin templates and
+            # management command in django_elasticsearch_dsl
+            "froide.helper",
             "django.contrib.admin",
             "django_comments",
             "django.contrib.flatpages",
             "django.contrib.sitemaps",
             "django.contrib.humanize",
             "django.contrib.gis",
             "channels",
-            # overwrite management command in
-            # django_elasticsearch_dsl
-            "froide.helper",
             # external
             "django_elasticsearch_dsl",
             "taggit",