有没有办法让自定义Django管理员操作显示在“更改”视图除了“更改列表”视图？ [英] Is there a way to get custom Django admin actions to appear on the "change" view in addition to the "change list" view?

问题描述

我认为无论什么原因，这将是很容易做的，但我看起来更深入，似乎没有直接的方式允许用户在实例的更改视图上执行自定义管理操作（即当您只是查看单个实例的编辑屏幕，而不是实例列表）。

我是否俯瞰一个简单的方法？或者我唯一的选择是覆盖其中一个管理模板（也可能是 ModelAdmin.add_view 方法）？

解决方案

以下是此答案的更新和改进。它适用于django 1.6，并重定向到您所在的地方。

  class ActionInChangeFormMixin（object）：
 def response_action 

为重定向

 response = super（ActionInChangeFormMixin，self）.response_action（request，
 queryset）
如果isinstance（响应，HttpResponseRedirect）：
响应['位置'] = request.META.get（'HTTP_REFERER'，response.url）
返回响应
 
 def change_view（self，request，object_id，extra_context = None）：
 actions = self.get_actions（request）
如果操作：
 action_form = self.action_form（auto_id = None ）
 action_form.fields ['action']。choices = self.get_action_choices（request）
 else：
 action_form = None 
 extra_context = extra_context或{} 
 extra_cont ext ['action_form'] = action_form 
 return super（ActionInChangeFormMixin，self）.change_view（request，object_id，extra_context = extra_context）
 
 class MyModelAdmin（ActionInChangeFormMixin，ModelAdmin）：
 ... 
  

模板：

  {％extendsadmin / change_form.html％} 
 {％load i18n admin_static admin_list admin_urls％} 
 
 {％block extrastyle％} 
 {{block.super}} 
< link rel =stylesheettype =text / csshref ={％staticadmin / css / changelists.css％}/> ; 
 {％endblock％} 
 
 {％block object-tools％} 
 {{block.super}} 
< div id =changelist> 
< form action ={％url opts | admin_urlname：'changelist'％}method =POST> {％csrf_token％} 
 {％admin_actions％} 
< input type =hiddenname =_ selected_actionvalue ={{object_id}}> 
< / form> 
< / div> 
 {％endblock％} 
  

I thought for whatever reason this would be easy to do, but I looked deeper and it appears there is no straightforward way to allow users to execute custom admin actions on the "change" view of an instance (i.e. when you are just viewing the edit screen for a single instance, not the list of instances).

Am I overlooking an easy way to do this? Or is my only choice to override one of the admin templates (and probably the ModelAdmin.add_view method)?

解决方案

Here is update and improvement of this answer. It works with django 1.6 and redirects to where you came from.

class ActionInChangeFormMixin(object):
    def response_action(self, request, queryset):
        """
        Prefer http referer for redirect
        """
        response = super(ActionInChangeFormMixin, self).response_action(request,
                queryset)
        if isinstance(response, HttpResponseRedirect):
            response['Location'] = request.META.get('HTTP_REFERER', response.url)
        return response  

    def change_view(self, request, object_id, extra_context=None):
        actions = self.get_actions(request)
        if actions:
            action_form = self.action_form(auto_id=None)
            action_form.fields['action'].choices = self.get_action_choices(request)
        else: 
            action_form = None
        extra_context=extra_context or {}
        extra_context['action_form'] = action_form
        return super(ActionInChangeFormMixin, self).change_view(request, object_id, extra_context=extra_context)

class MyModelAdmin(ActionInChangeFormMixin, ModelAdmin):
    ......

Template:

{% extends "admin/change_form.html" %}
{% load i18n admin_static admin_list admin_urls %}

{% block extrastyle %}
  {{ block.super }}
  <link rel="stylesheet" type="text/css" href="{% static "admin/css/changelists.css" %}" />
{% endblock %}

{% block object-tools %}
    {{ block.super }}
    <div id="changelist">
    <form action="{% url opts|admin_urlname:'changelist' %}" method="POST">{% csrf_token %}
        {% admin_actions %}
        <input type="hidden" name="_selected_action" value="{{ object_id }}">
    </form>
    </div>
{% endblock %}

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