[英]How to filter out Friends of user in search users function Django
我正在嘗試從“search_users”function 中過濾掉用戶的朋友以及當前登錄的用戶,我嘗試使用 exclude(),但不斷收到錯誤,我不確定出了什么問題。 我還想在用戶旁邊添加一個“添加朋友”按鈕,我認為我在“search_users.html”上做得正確。 錯誤
視圖.py
@login_required
def search_users(request):
query = request.GET.get('q')
object_list = User.objects.filter(username__icontains=query).exclude(friends=request.user.profile.friends.all())
context ={
'users': object_list
}
return render(request, "users/search_users.html", context)
search_users.html
{% extends "feed/layout.html" %} {% load static %}
{% block searchform %}
<form
class="form-inline my-2 my-lg-0 ml-5"
action="{% url 'search_users' %}"
method="get"
>
<input name="q" type="text" placeholder="Search users.." />
<button class="btn btn-success my-2 my-sm-0 ml-10" type="submit">
Search
</button>
</form>
{% endblock searchform %} {% block content %}
<div class="container">
<div class="row">
<div class="col-md-8">
{% if not users %}
<br /><br />
<h2><i>No such users found!</i></h2>
{% else %}
<div class="card card-signin my-5">
<div class="card-body">
{% for user_p in users %}
<a href="{{ user_p.profile.get_absolute_url }}"
><img
src="{{ user_p.profile.image.url }}"
class="rounded mr-2"
width="40"
height="40"
alt=""
/></a>
<a class="text-dark" href="{{ user_p.profile.get_absolute_url }}"
><b>{{ user_p }}</b></a
>
<small class="float-right">
<a
class="btn btn-primary mr-2"
href="/users/friend-request/send/{{ user_p.username }}"
>Add Friend</a>
</small>
<br/><br />
{% endfor %}
</div>
</div>
{% endif %}
</div>
<div class="col-md-4">
<div class="card card-signin my-5">
<a href="{{ request.user.profile.get_absolute_url }}"
><img
class="card-img-top"
src="{{ request.user.profile.image.url }}"
alt=""
/></a>
<div class="card-body">
<h5 class="card-title text-center">{{ request.user }}</h5>
<h6 class="text-center">
{{ request.user.profile.friends.count }}
<p class="text-muted">Friends</p>
</h6>
<p class="card-text text-center">{{ request.user.profile.bio }}</p>
</div>
</div>
</div>
</div>
{% endblock content %}
</div>
模型.py
class Profile(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE)
image = models.ImageField(default='default.png', upload_to='profile_pics')
slug = AutoSlugField(populate_from='user')
bio = models.CharField(max_length=255, blank=True)
friends = models.ManyToManyField('Profile', blank=True)
它應該是
User.profile.objects.filter(username__icontains=query).exclude(friends=request.user.profile.friends.all())
您之前遇到了錯誤,因為您之前引用了用戶 object 而不是配置文件本身。 User.profile
提供一對一相關的 model 配置文件。
您可以在此處閱讀有關一對一關系的更多信息。 https://docs.djangoproject.com/en/3.1/topics/db/examples/one_to_one/
我會這樣做:
object_list = User.objects\
.filter(username__icontains=query)\
.exclude(profile__friends__in=request.user.profile.friends.all())\
.exclude(id=request.user.id)
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