[Answer]-Foreign key not shown with Many to Many Relationship in Django?

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1👍

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If your trying to add data to ManyToMany Relationships, you’ll have to define the joining table using the through option. Read here for more information.

Note, however, you shouldn’t be saving the session ID – what are you trying to achieve? The reason for this is a user won’t always have the same sessionID and the data associated with the session (ie, request.session[*]) may be deleted.

In any case, an example would look something like this

class User(models.Model):
    username = models.CharField(max_length=100) #Id is automatically generated by Django
    password = models.CharField(max_length=100)

    def __unicode__(self):
        return self.username

class File(models.Model):
    users = models.ManyToManyField(User, through='UserFile')
    file_name = models.CharField(max_length=100)
    type = models.CharField(max_length=10)


class UserFile(models.Model):
    user = models.ForeignKey(User)
    file = models.ForeignKey(File)
    # Should probably use CharField if you know the length
    session_id = models.TextField()
👤DanielB

0👍

From what I have understood from your question, you may want to refer Foreign Key Section of the documentation. https://docs.djangoproject.com/en/dev/ref/models/fields/

e.g:
manufacturer = models.ForeignKey(‘Manufacturer’)

👤Rashmi Nagaraja

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