使用Django(社交平台)处理项目,用户可以在其中创建组以供其他用户加入或离开。
这是我的第一个Django项目,我不确定我的加入和离开组逻辑的实现是否正确。我有一个加入按钮,它是一个[href]标签:
<a href="{% url 'join' group.id %}" class="btn btn-primary">Join Group</a>
单击它应该将用户添加到组中。以下是模型和视图:
models.py:
@python_2_unicode_compatible
class Group(models.Model):
title = models.CharField(max_length=255, null=False, unique=True)
description = models.TextField(max_length=2000, null=False)
location = models.CharField(max_length=255, null=False)
date = models.DateTimeField(auto_now_add=True)
creator = models.ForeignKey(User, related_name="creator")
members = models.ManyToManyField(User, through='Membership')
counter = models.IntegerField(blank=False, null=True)
@python_2_unicode_compatible
class Membership(models.Model):
person = models.ForeignKey(User)
group = models.ForeignKey(Group)
date_joined = models.DateField(auto_now_add=True)
views.py:
@login_required
def group(request, pk):
group = get_object_or_404(Group, pk=pk)
return render(request, 'group/group.html', {'group': group})
@login_required
def join(request, pk):
_group = get_object_or_404(Group, pk=pk)
membership = Membership()
membership.group = _group
membership.person = request.user
membership.save()
return group(request, pk)
用户未保存到成员资格表。解决这个问题的最佳方法是什么?任何帮助将非常感谢。
还尝试了此连接按钮的视图功能:
@login_required
def join(request, pk):
_group = get_object_or_404(Group, pk=pk)
membership = Membership.objects.create(user=request.user, group=_group)
membership.save()
return group(request, pk)
网址:
urlpatterns = [
url(r'^$', views.groups, name='groups'),
url(r'^all/$', views.all, name='all'),
url(r'^create_group/$', views.CreateGroup.as_view(), name='create_group'),
url(r'^(\d+)/$', views.group, name='group'),
url(r'^(\d+)/$', views.join, name='join'),
]
答案 0 :(得分:0)
修正了问题。现在使用表格
List<List<Integer>> myList = new ArrayList<>();
List<Integer> x = new ArrayList<>();
x.add(5);
x.add(6);
List<Integer> y = new ArrayList<>();
y.add(5);
y.add(6);
myList.add(x);
myList.add(y);
加入网址是:
<form role="form" method="post" action="{% url 'join' %}" onsubmit="return true">
{%csrf_token %}
<input type="hidden" name="group_id" value="{{ group.id }}">
<input type="submit" value="Join Group">