如何在Django中仅找到已登录的用户内容？

Question

class User(auth.models.User,auth.models.PermissionsMixin):
    def __str__(self):
        return '@{}'.format(self.username)



class placement(models.Model):
    name=models.CharField(max_length=150, blank=True, null=True)
    ad_space=models.CharField(max_length=100, blank=False, null=False)
    PID_TYPE = (
        ('FN','FORMAT_NATIVE'),
        ('FNB','FORMAT_NATIVE_BANNER'),
        ('FI','FORMAT_INTERSTITIAL'),
        ('FB','FORMAT_BANNER'),
        ('FMR','FORMAT_MEDIUM,RECT'),
        ('FRV','FORMAT_REWARDED_VIDEO'),
    )

    format = models.CharField(max_length=3,choices = PID_TYPE,default = 'FN',blank=False, null=False)
    pid=models.CharField( max_length=50,default='',blank=False, null=False)
    cpm=models.IntegerField(default=0,blank=False, null=False)
    ADS_TYPE=(
        ('FB','FACEBOOK'),
        ('G','GOOGLE'),
    )

    source=models.CharField(max_length=2,choices=ADS_TYPE,default='FB',blank=False, null=False)
    comments=models.TextField(default='',blank=False, null=False)
    objects=models.Manager()


    def __str__(self):
        return self.name

    def get_absolute_url(self):
        return reverse("dashapp:disp")`

Now what should i do to only get only the logged in user content to be displayed on the template.As currently all the stored data is being fetched . That is logged out user for data is being displayed. I'm Basically a beginner so i dont have any advance idea about this. Full explanation are needed.

Answer 1

You can access the logged in user like this:

{% if user.is_authenticated %}
    <p>Welcome, {{ user.username }}. Thanks for logging in.</p>
{% else %}
    <p>Welcome, new user. Please log in.</p>
{% endif %}

In django, the logged in user has an attribute is_authenticated which is a boolean value. If user is logged in, it gives True , else False .

Update

If you meant to see the placement model values in template for current user, you need make some relations with the user to placement . So you need to update the placement model:

class placement(models.Model):
    user = models.ForeignKey(User, null=True, default=None)
    ....  # rest of the fields

And save user info to placement in views:

class SomeCreateView(CreateView):
   ...
   def form_valid(self, form):
        form.instance.user = User.objects.get(id = self.request.user.id)
        return super(SomeCreateView, self).form_valid(form)

and get placements of a user in view like this:

 placements = placement.objects.filter(user=request.user)