模板中带有参数的函数。 Django的 [英] Function with arguments in a template. Django

问题描述

在我的模板中，显示一个用户关注的用户列表。我希望该用户能够删除他关注的一个用户，这要感谢一个按钮。
我有一个删除关系的函数remove_relationship。

这是我的模型中的函数。py：

 类UserProfile（models.Model）：
（...）
 
 def remove_relationship（self，person）：
 Relationship.objects.filter（
 from_person = self，
 to_person = person）.delete（）
 return 
  

我想将此函数传递到模板中：

  {％for user in以下％} 
< form method = post> 
 {％csrf_token％} 
<输入type = submit value =删除 onclick = remove_relationship /> 
< / form> 
 {％endfor％} 
  

问题是我无法在自己的论点中传递参数模板。那么，如何使每个按钮删除与正确用户的关系呢？

我在该主题上看到了另一个问题，但看起来并不能解决我的问题（http://stackoverflow.com/questions/1333189/django-template-system-calling-a-function-inside-a-model）

谢谢

解决方案

似乎您将客户端代码（JavaScript）与服务器端（Django）混淆了。

要获取相关的用户ID，您可以在表单中添加其他隐藏字段：

  {％为以下％中的用户}} 
< form method = post action = {％url views.remove_relationship％}> 
 {％csrf_token％} 
<输入类型= hidden name = user_id value = {{user.id}}> 
< input type = submit value =删除 /> 
< / form> 
 {％endfor％} 
  

然后创建 remove_relationship 视图根据您现在在 request.POST ['user_id']

In my template, I display a list of users a user follows. I would like the user to be able to delete one of the users he follows thanks to a button. I have a function remove_relationship that deletes a relationship.

Here is the function in my models.py:

  class UserProfile(models.Model):
  (...)

      def remove_relationship(self, person):
        Relationship.objects.filter(
            from_person=self, 
            to_person=person).delete()
        return

I would like to pass this function into my template:

   {% for user in following % }
   <form method="post">
    {% csrf_token %}
   <input type="submit" value="delete" onclick="remove_relationship"/>
   </form>
   {%endfor%}

The thing is that I can't pass argument in my template. So how can I do so that each button deletes the relationship with the right user?

I saw an other question on this topic, abut it looks like it doesn't solve my problem (http://stackoverflow.com/questions/1333189/django-template-system-calling-a-function-inside-a-model)

Thank you for your help.

解决方案

It looks as though you are confusing client-side code (JavaScript) with server-side (Django).

To get the relevant user ID submitted you could add an additional hidden field to the form:

{% for user in following % }
<form method="post" action="{% url views.remove_relationship %}">
 {% csrf_token %}
<input type="hidden" name="user_id" value="{{ user.id }}">
<input type="submit" value="delete" />
</form>
{%endfor%}

Then create a remove_relationship view that does the deletion on the server side, based on the user id you'll now find in request.POST['user_id']

这篇关于模板中带有参数的函数。 Django的的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！