title: Adding choices but not showing in the selectbox
body: <p>I am trying to add categories in my blog project. So that whenever user post a blog he will add category also but in the select box it is not showing I tried this :</p>
  <pre><code>from django import forms
  from .models import Post,Category,Comment
  
  choices = Category.objects.all().values_list('name','name')
  
  choice_list = []
  
  for item in choices:
      choice_list.append(item)
  
  class PostForm(forms.ModelForm):
      class Meta:
          model = Post
          fields = ('title','title_tag','author','category','body','snippet','header_image')
          widgets = {
              'title' : forms.TextInput(attrs={'class':'form-control','placeholder':'Title of the Blog'}),
              'title_tag' : forms.TextInput(attrs={'class':'form-control','placeholder':'Title tag of the Blog'}),
              'author' : forms.TextInput(attrs={'class':'form-control','value':'','id':'elder','type':'hidden'}),
              'category' : forms.Select(choices=choice_list, attrs={'class':'form-control','placeholder':&quot;blog's category&quot;}),
              'body' : forms.Textarea(attrs={'class':'form-control','placeholder':'Body of the Blog'}),
              'snippet' : forms.Textarea(attrs={'class':'form-control'}),
          }
  </code></pre>
  <p>Here Category model contains my categories</p>
  <p>My models.py</p>
  <pre><code>class Post(models.Model):
      title = models.CharField(max_length=255)
      header_image = models.ImageField(
          null=True, blank=True, upload_to=&quot;images/&quot;)
      title_tag = models.CharField(max_length=255)
      author = models.ForeignKey(User, on_delete=models.CASCADE)
      body = RichTextField(blank=True, null=True)
      post_date = models.DateField(auto_now_add=True)
      category = models.CharField(max_length=25, default='coding')
      snippet = models.CharField(max_length=50)
      likes = models.ManyToManyField(User, related_name='blog_posts')
  
      def total_likes(self):
          return self.likes.count
  
      def __str__(self):
          return self.title + ' | ' + str(self.author)
  
      def get_absolute_url(self):
          # return reverse(&quot;article_detail&quot;, args={str(self.id)})      return to self blog
          return reverse(&quot;home&quot;)
  </code></pre>