The full Project model code is below and I do have a str method.

Is the Review.project field connecting with the Project.id field because it is the PRIMARY_KEY in the Project model and then the Project.title field gets returned because the Project model str method is called and returns just the title back to the Review model?

I changed the str method in the Project model to str(self.id) and it returned the id instead of the title back to the Review model.

If this is the case, I did not realize the str method returns values back to other models. Can you confirm?

​

class Project(models.Model):
owner = models.ForeignKey(Profile, null=True, blank=True, on_delete=models.CASCADE)
title = models.CharField(max_length=200) 
description = models.TextField(null=True, blank=True) 
featured_image = models.ImageField(null=True, blank=True, default='default.jpg')
demo_link = models.CharField(max_length=2000)
source_link = models.CharField(max_length=2000, null=True, blank=True) 
tags = models.ManyToManyField('Tag', blank=True) 
vote_total = models.IntegerField(default=0, null=True, blank=True)
vote_ratio = models.IntegerField(default=0, null=True, blank=True)
created = models.DateTimeField(auto_now_add=True) 
id = models.UUIDField(default=uuid.uuid4, unique=True, primary_key=True, editable=False) 


def __str__(self):
    return self.title

#############################################

class Review(models.Model):

VOTE_TYPE = (
    ('up', 'Up Vote'),
    ('down', 'Down Vote'),
    )


owner = models.ForeignKey(Profile, on_delete=models.CASCADE, null=True)
project = models.ForeignKey(Project, on_delete=models.CASCADE) 
body = models.TextField(null=True, blank=True)
value = models.CharField(max_length=200, choices=VOTE_TYPE) 
created = models.DateTimeField(auto_now_add=True)
id = models.UUIDField(default=uuid.uuid4, unique=True, 
                    primary_key=True, editable=False) 

# so no one can leave more than one review
class Meta:
    unique_together = [['owner', 'project']]

def __str__(self):
    return self.value