定制django admin ChangeForm模板/添加自定义内容

Question

我可以在变更表单管理页面上插入（跛脚）静态文本，但我真的很喜欢它使用当前编辑对象的上下文！

例如，我想在MyObject的格式上改变一个URL来包含来自一个ForeignKey连接对象的ID（obj）作为链接。

我的管理对象：

class MyObjectChangeForm(forms.ModelForm): 
    class Meta: 
     model = MyObject 
     fields = ('field1', 'obj',) 

class MyObjectAdmin(admin.ModelAdmin): 
    form = MyObjectChangeForm 
    list_display = ('field1', 'obj') 
    def render_change_form(self, request, context, *args, **kwargs): 
     self.change_form_template = 'admin/my_change_form.html' 
     extra = {'lame_static_text': "something static",} 
     context.update(extra) 
     return super(MyObjectAdmin, self).render_change_form(request, 
      context, *args, **kwargs) 

我的模板templates/admin/my_change_form.html：

{% extends "admin/change_form.html" %} 

{% block form_top %} 
    {{ lame_static_text }} 
    <a href="http://example.com/abc/{{ adminform.data.obj.id }}?"/>View Website</a> 
{% endblock %} 

的{{adminform.data.obj.id}}通话显然是行不通的，但我想类似的规定。

如何从当前对象中将动态上下文插入到admin更改表单中？

Answer 1

添加您额外的上下文中change_view

class MyObjectAdmin(admin.ModelAdmin): 

# A template for a very customized change view: 
change_form_template = 'admin/my_change_form.html' 

def get_dynamic_info(self): 
    # ... 
    pass 

def change_view(self, request, object_id, form_url='', extra_context=None): 
    extra_context = extra_context or {} 
    extra_context['osm_data'] = self.get_dynamic_info() 
    return super(MyObjectAdmin, self).change_view(
     request, object_id, form_url, extra_context=extra_context, 
    )