Question

我有ManyToMany字段的模型，它连接了用户......所以，我的模板中需要if-else函数，可以检查当前已验证的用户是否连接到模型。我试图这样做，但做错了......

我的模型article：

from django.db import models
from django.contrib.auth.models import User
from django.db import models

# Create your models here.
class Article(models.Model):
    class Meta():
        db_table = 'article'

    article_users = models.ManyToManyField(User, null=True, blank=True, default=None)
    article_title = models.CharField(max_length=200, blank=False, null=False)
    article_content = models.IntegerField(choices=CONTENT_CHOICES, null=True, blank=True)

我的views.py：

from django.shortcuts import render, render_to_response, redirect, Http404
from article.models import Article
from django.core.context_processors import csrf
from django.contrib import auth
from django.contrib.auth.models import User
from django.template import RequestContext

# Create your views here.
def article(request, article_id=1):
    args = {}
    args.update(csrf(request))
    args['article'] = Article.objects.get(id=article_id)
    args['username'] = auth.get_user(request).username
    users = args['article'].article_users
    return render_to_response('article.html', args, context_instance=RequestContext(request))

模板：

{% if article.article_users = user %}
<p>Purchased</p>
{% else %}
<input type="submit" value="Buy">
{% endif %}

修改

{% if user in article.article_users %}
    <p>Purchased</p>
{% else %}
    <input type="submit" value="Buy">
{% endif %}

Answer 1

尝试使用

{% if user in article.article_users %}

Answer 2

# user -- current user
#article.article_users -- article users
{% if user in article.article_users %}

应该进行预定的检查。

检查当前用户ID

2 个答案: