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Fixed relation by renaming foreign key.

This commit is contained in:
Andrew Lalis 2018-09-25 16:47:01 +02:00
parent 732e3d7daf
commit 5b38f096e0
1 changed files with 4 additions and 7 deletions
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11
backend/postings/models.py
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@ -5,9 +5,6 @@ class RateableEntity(models.Model):
# The human-readable name of this entity.
name = models.CharField(max_length=256)
class Meta:
abstract = True
# A review represents any single data entry to the database.
class Review(models.Model):
# An integer rating in the domain [1, 5]
@ -19,7 +16,7 @@ class Review(models.Model):
# An integer representing the number of times a user found this review unhelpful.
unhelpful_vote_count = models.IntegerField(default=1)
# A foreign key referencing the entity for which this review was made.
rateable_entity_id = models.ForeignKey(RateableEntity, on_delete=models.CASCADE)
rateable_entity_id = models.ForeignKey('postings.RateableEntity', on_delete=models.CASCADE)
# A RateableEntity for universities.
class University(RateableEntity):
@ -28,14 +25,14 @@ class University(RateableEntity):
# A RateableEntity for professors, who belong to one or more university.
class Professor(RateableEntity):
# The universities that this professor teaches or has taught at.
university = models.ManyToManyField(University)
university = models.ManyToManyField('postings.University')
# A RateableEntity for courses, which belong to a university, and have one or more professors.
class Course(RateableEntity):
# The university that this course belongs to.
university = models.ForeignKey(University, on_delete=models.CASCADE)
taught_at_university = models.ForeignKey('postings.University', on_delete=models.CASCADE)
# A list of professors that teach this course.
professors = models.ManyToManyField(RateableEntity)
professors = models.ManyToManyField('postings.Professor')
# Create your models here.
class UniversityReview(models.Model):