我正在构建一个前端表单，允许某人发布文章而无需访问管理员。
当用户登录时，我希望他/她能够写一篇文章。保存后，我希望该用户自动设置为文章的作者。
我陷入了僵局。任何帮助将不胜感激。
models.py
from django.db import models
from django.urls import reverse
from django.contrib.auth.models import User
from django.utils import timezone
class Article(models.Model):
author = models.ForeignKey(User)
title = models.CharField(max_length=65)
text = HTMLField()
created_date = models.DateTimeField(default=timezone.now)
published_date = models.DateTimeField(blank=True, null=True)
def publish(self):
self.published_date = timezone.now()
self.save()
def __str__(self):
return self.title
class ArticleImage(models.Model):
image = CloudinaryField('image')
image_name = models.CharField(max_length=55,
default='')
article = models.ForeignKey(Article)
def __str__(self):
return self.image_name
class ArticleTag(models.Model):
slug = models.SlugField(max_length=50,
unique=True)
article = models.ForeignKey(Article)
def __str__(self):
return self.slug
class ArticleCategory(models.Model):
slug = models.SlugField(max_length=20,
unique=True)
article = models.ForeignKey(Article)
def __str__(self):
return self.slug
forms.py
class ArticleCreationForm(ModelForm):
class Meta:
model = Article
fields = ['title', 'text']
widgets = {
'title': forms.TextInput(attrs={'placeholder': 'Please add a title. Max: 65 characters'}),
'text': forms.Textarea(attrs={'cols': 80, 'rows': 40, 'placeholder': 'Starting typing your article...'})
}
ArticleImageFormSet = inlineformset_factory(Article, ArticleImage,
fields=('image', 'image_name',),
extra=1,
max_num=1,
widgets={'image_name':
forms.TextInput(attrs={'placeholder': 'Image name'})})
ArticleTagFormSet = inlineformset_factory(Article, ArticleTag,
fields=('slug',),
extra=1,
max_num=1)
ArticleCategoryFormSet = inlineformset_factory(Article, ArticleCategory,
fields=('slug',),
extra=1,
max_num=1)
views.py
class CreateArticle(CreateView):
model = Article
form_class = ArticleCreationForm
template_name_suffix = '_add_form'
def get_success_url(self):
return reverse('accounts:detail', kwargs={'pk': self.object.pk})
def get(self, request, *args, **kwargs):
"""
Handles GET requests and instantiates blank versions of the form
and its inline formsets.
"""
self.object = None
form_class = self.get_form_class()
form = self.get_form(form_class)
articleimage_form = ArticleImageFormSet()
articletag_form = ArticleTagFormSet()
articlecategory_form = ArticleCategoryFormSet()
return self.render_to_response(
self.get_context_data(form=form,
articleimage_form=articleimage_form,
articletag_form=articletag_form,
articlecategory_form=articlecategory_form))
def post(self, request, *args, **kwargs):
"""
Handles POST requests, instantiating a form instance and its inline
formsets with the passed POST variables and then checking them for
validity.
"""
self.object = None
form_class = self.get_form_class()
form = self.get_form(form_class)
articleimage_form = ArticleImageFormSet(self.request.POST)
articletag_form = ArticleTagFormSet(self.request.POST)
articlecategory_form = ArticleCategoryFormSet(self.request.POST)
if (form.is_valid() and articleimage_form.is_valid() and
articletag_form.is_valid() and articlecategory_form.is_valid()):
return self.form_valid(form, articleimage_form, articletag_form,
articlecategory_form)
else:
return self.form_invalid(form, articleimage_form, articletag_form,
articlecategory_form)
def form_valid(self, form, articleimage_form, articletag_form,
articlecategory_form):
"""
Called if all forms are valid. Creates a Recipe instance along with
associated Ingredients and Instructions and then redirects to a
success page.
"""
self.object = form.save()
obj.author = request.user.username
articleimage_form.instance = self.object
articleimage_form.save()
articletag_form.instance = self.object
articletag_form.save()
articlecategory_form.instance = self.object
articlecategory_form.save()
return HttpResponseRedirect(self.get_success_url())
def form_invalid(self, form, articleimage_form, articletag_form,
articlecategory_form):
"""
Called if a form is invalid. Re-renders the context data with the
data-filled forms and errors.
"""
return self.render_to_response(
self.get_context_data(form=form,
articleimage_form=articleimage_form,
articletag_form=articletag_form,
articlecategory_form=articlecategory_form))
template.html
<form enctype="multipart/form-data" action="" method="post">
{% csrf_token %}
<div class="row">
<div class="medium-9 columns">
{{ form.non_field_errors }}
<h2 class="article-identifier">Add a new article</h2>
<div class="fieldWrapper">
{{ form.title.errors }}
{{ form.title }}
<div id="title_feedback" class="text-right"></div>
</div>
<div class="fieldWrapper">
{{ form.text.errors }}
{{ form.text }}
</div>
</div>
<div class="medium-3 columns">
<div class="button-wrapper">
<input class="button" type="submit" value="Publish">
</div>
<fieldset class="image_upload">
<h2>Add an Image</h2>
{{ articleimage_form.management_form }}
{{ articleimage_form.non_form_errors }}
{% for form in articleimage_form %}
{{ form.id }}
<div class="inline {{ articleimage_form.prefix }}">
{{ form.image.errors }}
{{ form.image.label_tag }}
{{ form.image }}
{{ form.image_name.errors }}
{{ form.image_name.label_tag }}
{{ form.image_name }}
</div>
{% endfor %}
</fieldset>
<fieldset>
<h2>Add a Category</h2>
{{ articlecategory_form.management_form }}
{{ articlecategory_form.non_form_errors }}
{% for form in articlecategory_form %}
{{ form.id }}
<div class="inline {{ articlecategory_form.prefix }}">
{{ form.slug.errors }}
{{ form.slug.label_tag }}
{{ form.slug }}
</div>
{% endfor %}
</fieldset>
<hr />
<fieldset>
<h2>Add a Tag</h2>
{{ articletag_form.management_form }}
{{ articletag_form.non_form_errors }}
{% for form in articletag_form %}
{{ form.id }}
<div class="inline {{ articletag_form.prefix }}">
{{ form.slug.errors }}
{{ form.slug.label_tag }}
{{ form.slug }}
</div>
{% endfor %}
</fieldset>
</div>
</div>
</form>
答案 0 :(得分：4)
使用commit=False保存表单，将用户设置在对象上，然后保存对象。在form_valid方法中，您可以使用self.request.user访问该用户。您应该分配用户实例，而不是代码当前所用的用户名。
obj = form.save(commit=False)
obj.author = self.request.user
...
obj.save
您还应该将视图限制为已登录的用户。您可以使用LoginRequiredMixin进行此操作。
from django.contrib.auth.mixins import LoginRequiredMixin
class CreateArticle(LoginRequiredMixin, CreateView):
答案 1 :(得分：0)
根据Django的文档，您可以通过覆盖的form.instance.author方法将self.request.user设置为当前用户（form_valid）（您似乎已经在代码中完成了类似的操作使用其他对象。）。然后，您可以return super().form_valid(form)。
在您的情况下，您似乎需要在form_valid方法中执行其他操作，因此return super().form_valid(form)不一定正确。
答案 2 :(得分：-1)
您可以尝试向表单模板中添加隐藏的输入
<form>
....
<input type="hidden" name="author" value="{{ request.user.id }}">
</form>