所以我是一名开发人员，正在从头开始构建我的第一个项目。我目前正在为我的应用构建消息系统。它应该如何工作是用户转到检查其当前对话的链接，因此显示对话。然后，在对话中，有一个链接将其带到显示该对话内容的页面。但是我在这里遇到了问题，因为当我尝试获取另一个用户的pk显示其消息时，我的代码改为获取request.user pk并获取当前用户正在进行的所有消息，而不仅仅是该特定对话中有2位用户。现在，当我手动进行操作时，我的意思是键入要检查的特定用户的实际pk，并与该用户一起发送消息，当我在http中手动输入其pk编号时，便可以获取正确的消息和独家消息。目前，我的href链接正在传递conversation.pk，但我还没有弄清楚如何获取其他用户pk。我尝试过的所有事情都使我的request.user PK保持了通过。
所以我想我要问的是如何让其他用户的pk与我的URL一起传递？我假设我需要保留session.pk，并将其他用户pk添加为另一个参数。或者，还有另一种方法吗？也许在我看来有一些额外的逻辑？还是在模板中？我宁愿被困在这里。
views.py/消息和消息
#displays active conversations
def messages(request,profile_id):
conversations = Conversation.objects.filter(
members= request.user
).annotate(
last_message=Max('instantmessage__date')
).prefetch_related('members').order_by(
'-last_message'
)
#displays contents of conversations, messages
def message(request, profile_id):
receiver = get_object_or_404(Profile,id=profile_id)
exclusive_conversations = Conversation.objects.filter(members= request.user ).filter(members= receiver)
messages = InstantMessage.objects.filter(receiver__in=exclusive_conversations)
context = {'messages' : messages, }
return render(request, 'dating_app/message.html', context)
urls.py/消息，消息
path('message/<int:profile_id>/', views.message, name='message'),
path('messages/<int:profile_id>/', views.messages, name='messages'),
]
messages.html
{% for conversation in conversations%}
<li class="text-right list-group-item">
{% for member in conversation.members.all %}{% if member != user %}
{{ member.username }}
<a href="{% url 'dating_app:message' conversation.pk %}">Start messaging </a>
<br><br>
{% endif %}{% endfor %}
</li>
{%endfor %}
message.html
{% for message in messages %}
{% if message.sender_id == request.user.id %}
<li class="text-right list-group-item"> {{ message.message }}<br>{{ message.date }} </li>
{% else %}
<li class="text-left list-group-item"> {{ message.message }}<br>{{ message.date }} </li>
{% endif %}
{%endfor %}
** models.py **
class ProfileManager(BaseUserManager):
def create_user(self, username, email,description,photo, password=None):
if not email:
raise ValueError("You must creat an email")
if not username:
raise ValueError("You must create a username!")
if not description:
raise ValueError("You must write a description")
if not photo:
raise ValueError("You must upload a photo")
user = self.model(
email=self.normalize_email(email),
username = username,
description= description,
photo= photo,
)
user.set_password(password)
user.save(using=self._db)
return user
def create_superuser(self, username, email,description,photo, password):
user = self.create_user(
email=self.normalize_email(email),
password=password,
username=username,
description=description,
photo=photo,
)
user.is_admin=True
user.is_staff=True
user.is_superuser=True
user.save(using=self._db)
return user
class Profile(AbstractBaseUser):
class Meta:
swappable = 'AUTH_USER_MODEL'
email = models.EmailField(verbose_name="email")
username = models.CharField(max_length=30, unique=True)
date_joined = models.DateTimeField(verbose_name='date joined', auto_now_add=True)
last_login = models.DateTimeField(verbose_name='last login', auto_now=True)
is_admin = models.BooleanField(default=False)
is_active = models.BooleanField(default=True)
is_staff = models.BooleanField(default=False)
is_superuser = models.BooleanField(default=False)
#what I added
description = models.TextField()
photo = models.ImageField(upload_to='profile_photo',blank=False, height_field=None, width_field=None, max_length=100)
matches = models.ManyToManyField(settings.AUTH_USER_MODEL, related_name='+', blank=True)
USERNAME_FIELD = 'username'
REQUIRED_FIELDS = ['description','photo','email']
objects = ProfileManager()
def __str__(self):
return self.username
def has_perm(self, perm, obj=None):
return self.is_admin
def has_module_perms(self,app_label):
return True
class UserVote(models.Model):
user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
voter = models.ForeignKey(settings.AUTH_USER_MODEL, related_name='given_vote', on_delete=models.CASCADE)
vote = models.BooleanField(default=False)
class Meta:
unique_together = (('user', 'voter'))
class Conversation(models.Model):
members = models.ManyToManyField(settings.AUTH_USER_MODEL)
class InstantMessage(models.Model):
sender = models.ForeignKey(settings.AUTH_USER_MODEL, related_name= 'senderr',on_delete=models.CASCADE )
receiver = models.ForeignKey(Conversation, on_delete=models.CASCADE)
message = models.TextField()
date = models.DateTimeField(auto_now_add=True)
def __unicode__(self):
return self.message
#tests to see if messages are exclusive between sender, receiver
@classmethod
def find_messages_exclusive_to_profile(cls,sender,receiver):
#members = receiver AND sender, not receiver or sender
exclusive_conversations = Conversation.objects.filter(members= receiver ).filter(members= sender)
exclusive_messages = InstantMessage.objects.filter(receiver__in=exclusive_conversations)
return exclusive_messages
答案 0 :(得分：1)
好吧，我最终弄清楚了自己的问题。好的，所以我做错的是传递Conversation.pk而不是其他用户 pk。通过传递对话pk，我不能只过滤两个用户之间的消息，但是我得到的消息不是两个用户之间的唯一。并且，会话PK总是比用户少。可能有3个对话对象，但5个用户的pk不同。无论如何，解决方案就是像在messages.html中那样简单地将conversation.pk更改为member.pk
{% for conversation in conversations%}
<li class="text-right list-group-item">
{% for member in conversation.members.all %}{% if member != user %}
{{ member.username }}
<a href="{% url 'dating_app:messages' member.pk %}">Start messaging </a>
<br><br>
{% endif %}{% endfor %}
</li>
{%endfor %}
然后，我调整了message.html以在request.user和other_user之间进行过滤
{% for message in messages %}
{% if message.sender_id == request.user.id %}
<li class="text-right list-group-item"> {{ message.message }}<br>{{ message.date }} </li>
{% elif message.sender_id == profile.id %}
<li class="text-left list-group-item"> {{ message.message }}<br>{{ message.date }} </li>
{% endif %}
{%endfor %}