Question

I have two tables in Django: First one is file which has the file information and second one is share which has the shared information:
files_id is foreign key to Share table:
Now, I want to retrieve file information(from File table) which has files_id in shared table. How can I do that?

#models.py
class File(models.Model):
    users = models.ForeignKey(User)
    file_name = models.CharField(max_length=100)
    type = models.CharField(max_length=10)
    source = models.CharField(max_length=100)
    start_date = models.TextField()
    end_date = models.TextField()
    duration = models.TextField()
    size = models.TextField()
    flag = models.TextField()
    #delete_date = models.CharField(max_length=100, null=True, blank=True)

class Share(models.Model):
    users = models.ForeignKey(User)
    files = models.ForeignKey(File)
    shared_user_id = models.IntegerField()
    shared_date = models.TextField()

I want to get the file_information with users_id is log_id and get the shared_date too. I get log_id as: log_id = request.user.id

Answer 1

I have made some changes to your models to remove confusion of plural names for user and file. I think you named them that because you already have some database.

#models.py
class File(models.Model):
    user = models.ForeignKey(User, db_column="users_id")
    file_name = models.CharField(max_length=100)
    type = models.CharField(max_length=10)
    source = models.CharField(max_length=100)
    start_date = models.TextField()
    end_date = models.TextField()
    duration = models.TextField()
    size = models.TextField()
    flag = models.TextField()
    #delete_date = models.CharField(max_length=100, null=True, blank=True)

class Share(models.Model):
    user = models.ForeignKey(User,db_column="users_id")
    file = models.ForeignKey(File, db_column="files_id")
    shared_user_id = models.IntegerField()
    shared_date = models.TextField()

So, from above two models, it appears that File object is created by one User which can be shared bu other users. Since you have files_id somehow, following query should work

file = File.objects.get(id=files_id)
# Assuming one file is shared only ones by an user
# otherwise you should use filter instead of get
shared_file = Share.objects.get(file=file, user=request.user)

Why are you using TextField for storing DateTime? You should use DateTimeField.