55 lines
2.4 KiB
Python
55 lines
2.4 KiB
Python
from django.db import models
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# Represents any object for which reviews can be made. (Universities, Professors, etc.)
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class RateableEntity(models.Model):
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# The human-readable name of this entity.
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name = models.CharField(max_length=256)
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# A review represents any single data entry to the database.
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class Review(models.Model):
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# An integer rating in the domain [1, 5]
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rating = models.IntegerField(default=1)
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# A title for the review (brief summary of sentiment)
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title = models.CharField(max_length=128)
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# The textual content of the review.
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content = models.TextField()
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# A foreign key referencing the entity for which this review was made.
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rateable_entity = models.ForeignKey('postings.RateableEntity', on_delete=models.CASCADE)
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# The date and time at which this review was published.
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created_date = models.DateTimeField(auto_now_add=True)
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# The date and time at which the last modification to this review was published.
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last_updated_date = models.DateTimeField(auto_now=True)
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# A vote for a review as either positive or negative.
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class ReviewHelpfulVote(models.Model):
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# A reference to the review that this vote is for.
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review = models.ForeignKey('postings.Review', on_delete=models.CASCADE)
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# Whether or not the referenced review was helpful.
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helpful = models.BooleanField()
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# TODO: Add a reference to the user who voted. The whole purpose of a separate vote object is to track who votes for what.
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# A RateableEntity for universities.
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class University(RateableEntity):
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pass
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# A RateableEntity for professors, who belong to one or more university.
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class Professor(RateableEntity):
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# The universities that this professor teaches or has taught at.
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university = models.ManyToManyField('postings.University')
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# A RateableEntity for courses, which belong to a university, and have one or more professors.
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class Course(RateableEntity):
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# The university that this course belongs to.
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taught_at_university = models.ForeignKey('postings.University', on_delete=models.CASCADE)
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# A list of professors that teach this course.
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professors = models.ManyToManyField('postings.Professor')
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# Create your models here.
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class UniversityReview(models.Model):
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university_name = models.CharField(max_length=200)
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username = models.CharField(max_length=200)
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rating = models.IntegerField(default=1)
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title = models.CharField(max_length=200)
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date_published = models.DateField('date published')
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content = models.CharField(max_length=200)
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