Django提交表单时会获得OAuth用户ID上传时需要此字段

编程问答 2022-06-03

问题描述

我正在尝试为通过OAuth注册的用户制作“上传头像”表格。如果我仅使用“头像”作为表单的字段选择，则每次都会得到“此字段为必填”作为响应。我需要一种获取当前登录用户并在上传的头像旁边提交其ID的方法。

forms.py 

from django import forms
from django.core.files.images import get_image_dimensions

from soc_auth.models import UserProfile

class UserProfileForm(forms.ModelForm):
    
    class Meta:
        model = UserProfile
        #fields = '__all__'
        fields = ['avatar']
        
    #def __init__(self,user,*args,**kwargs):
        #self.user = user
        #super(UserProfileForm,self).__init__(*args,**kwargs)
    
    def clean_avatar(self):
        avatar = self.cleaned_data['avatar']

        try:
            w,h = get_image_dimensions(avatar)

            #validate dimensions
            max_width = max_height = 1000
            if w > max_width or h > max_height:
                raise forms.ValidationError(
                    u'Please use an image that is '
                     '%s x %s pixels or smaller.' % (max_width,max_height))

            #validate content type
            main,sub = avatar.content_type.split('/')
            if not (main == 'image' and sub in ['jpeg','pjpeg','gif','png']):
                raise forms.ValidationError(u'Please use a JPEG,'
                    'GIF or PNG image.')

            #validate file size
            if len(avatar) > (20 * 1024):
                raise forms.ValidationError(
                    u'Avatar file size may not exceed 20k.')

        except AttributeError:
            """
            Handles case when we are updating the user profile
            and do not supply a new avatar
            """
            pass

        return avatar

models.py 

from django.db import models

from django.contrib.auth.models import User

class UserProfile(models.Model):
    class Meta:
        app_label = "soc_auth"
    user   = models.OnetoOneField(User,on_delete=models.CASCADE,blank = True,null = True)
    avatar = models.ImageField(upload_to = "images/")

views.py 

from django.shortcuts import render

from .forms import UserProfileForm

def index(request):

    if request.method == "POST":
        form = UserProfileForm(request.POST,request.FILES)
        if form.is_valid():
            #form.user = request.user
            form.save()
            #current_user.avatar = form.instance
            img_obj = form.instance
            return render(request,'soc_auth/index.html',{'form': form,'img_obj' : img_obj})
    else:
        form = UserProfileForm()
    return render(request,{'form': form})

index.html 

<!doctype html>
<html lang="en">
<head>
  <Meta charset="utf-8">

  <title>My fake blog!</title>

  <link
    rel="stylesheet"
    href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.0/css/bootstrap.min.css"
    integrity="sha384-9gVQ4dYFwwWSjIDZnLEWnxCjeSWFphJiwGPXr1jddIhOegiu1FwO5qRGvFXOdJZ4"
    crossorigin="anonymous">
</head>
<body>
  <div class="jumbotron">
    <h1>My fake blog!</h1>
    {% if user.is_authenticated %}
      <p>Logged as {{ user.username }}</p>
      <a class="btn btn-primary" href="{% url 'logout' %}">logout</a>
      <form method = "POST" enctype="multipart/form-data" class = "post-form">{% csrf_token %}
        {{form.as_p}}
        <button type = "submit" class = "save btn btn-default">Save</button>
      </form>
      {% if img_obj %}
        <h3>Succesfully uploaded : {{img_obj.title}}</h3>
        <img src="{{img_obj.image.url}}" alt="connect" style="max-height:300px">
      {% endif %}
    {% else %}
      <a class="btn btn-primary" href="{% url 'social:begin' 'google-oauth2' %}">
        Login
      </a>
    {% endif %}
  </div>
  <div class = "user-forms">
  </div>

  <div class="container-fluid">
  {% for post in posts %}
    <div>
      <h2>{{ post.title }}</h2>
      <p>{{ post.content }}</p>
      <p>Posted by {{ post.user.username }} | {{ post.date }}</p>
    </div>
  {% endfor %}
  </div>
</body>
</html>

解决方法

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djangodjangohtmloauthoauthpythonpython-social-auth