Django-如何从数据库表中提取已登录的用户数据？

Question

I am relatively new to Django, and web development in general. Basically, I want to pull a logged in users data from a database table so he can view/edit it on a 'My profile' page.

I'm guessing the best way to do this would be to call the logged in users 'id', then somehow use it to call the row in the database table I want?

This is how far I have got, but I don't want the user's 'id' in the url, I want the users 'row id' in the database table:

urls.py

    url(r'^my-profile/(?P<id>[0-9]+)', my_profile, name="my_profile"),

views.py

    user = request.user

template

    <a href="{% url 'my_profile' id=user.id %}">My profile</a>

Any help would be much appreciated!

My current code:

models.py

    class BarSignUp(models.Model):

        LOCATION_CHOICES=(
            ("Central London", "Central London"),
            ("North London", "North London"),
            ("East London", "East London"),
            ("South London", "South London"),
            ("West London", "West London"),
        )

        user = models.ForeignKey(User, on_delete=models.CASCADE, null=True)
        name = models.CharField(max_length=50)
        bio = models.CharField(max_length=50)
        area = models.CharField(max_length=50, choices=LOCATION_CHOICES, null=True)
        booking_link = models.CharField(max_length=100, null=True)
        timestamp = models.DateTimeField(auto_now_add=True, auto_now=False)

        def __str__(self):
            return self.email

        def get_absolute_url(self):
            return reverse("barber_profile", kwargs={"id": self.id})

Answer 1

As you already know, you can get the logged-in user with request.user . Therefore you can remove the id from the regex and use r'^my-profile/$' .

Then change your url tag to {% url 'my_profile' %} .

Answer 2

Your BarSignUp model has a ForeignKey on User , which mean you can have zero, one, or many (for the largest possible definition of "many" - could be literally millions) of BarSignUp records related to one given user. If that's really what you want, then request.user.barsignup_set.all() will return them all (cf the FineManual ).

If what you want is one single BarSignUp per user, then you want a OneToOne field instead of a ForeignKey , and once you've updated your models you can get the current logged-in user BarSignUp with request.user.barsignup ( this is document too )

Answer 3

Foreignkey is a Many-to-One relationship.So if you want to access all the logged-in users BarSignUp data, then you should do the following.

views.py

signups = request.user.barsignup_set.all()

template

{% for barsignup in signups %}
   {{ barsignup }}   
   {{ barsignup.field }}
{% endfor %}

Also there is an error in you BarSignUp str method, please correct the same.

def __str__(self):
    return self.user.email  #if you want to display user email