3 # Copyright (C) 2012 FinalsClub Foundation
6 Models for the courses django app.
7 Handles courses, and their related models
8 Courses are the first class object, they contain notes.
9 Courses have a manytoone relation to schools.
13 from django.db import models
14 from django.template import defaultfilters
16 class School(models.Model):
17 """ A grouping that contains many courses """
18 name = models.CharField(max_length=255)
19 slug = models.SlugField(null=True)
20 location = models.CharField(max_length=255, blank=True, null=True)
21 url = models.URLField(max_length=511, blank=True)
22 # Facebook keeps a unique identifier for all schools
23 facebook_id = models.BigIntegerField(blank=True, null=True)
24 file_count = models.IntegerField(default=0)
27 """ Sort School by file_count descending, name abc=> """
28 ordering = ['-file_count', 'name']
31 def __unicode__(self):
34 def save(self, *args, **kwargs):
35 """ Save school and generate a slug if one doesn't exist """
37 self.slug = defaultfilters.slugify(self.name)
38 super(School, self).save(*args, **kwargs)
40 def update_note_count(self):
41 """ Update the School.file_count by summing the
42 contained course.file_count
44 self.file_count = sum([course.file_count for course in self.course_set.all()])
47 def update_related_note_count(self):
48 """ Runs the update_note_count function on all related course
49 objects, then generates the self.file_count
51 for course in self.course_set.all():
52 course.update_note_count()
53 self.update_note_count()
56 class Course(models.Model):
57 """ First class object that contains many notes.Note objects """
59 name = models.CharField(max_length=255)
60 slug = models.SlugField(null=True)
61 school = models.ForeignKey(School) # Should this be optional ever?
62 file_count = models.IntegerField(default=0)
64 desc = models.TextField(max_length=511, blank=True, null=True)
65 url = models.URLField(max_length=511, blank=True, null=True)
66 academic_year = models.IntegerField(blank=True, null=True,
67 default=datetime.datetime.now().year)
69 instructor_name = models.CharField(max_length=255, blank=True, null=True)
70 instructor_email = models.EmailField(blank=True, null=True)
72 updated_at = models.DateTimeField(default=datetime.datetime.utcnow)
74 created_at = models.DateTimeField(auto_now_add=True)
78 ordering = ['-file_count', 'school', 'name']
80 def __unicode__(self):
81 return u"{0}: {1}".format(self.name, self.school)
83 def get_absolute_url(self):
84 """ Not implemented yet """
85 return u"/{0}/{1}".format(self.school.slug, self.slug)
87 def save(self, *args, **kwargs):
88 """ Save school and generate a slug if one doesn't exist """
90 self.slug = defaultfilters.slugify(self.name)
91 super(Course, self).save(*args, **kwargs)
93 def update_note_count(self):
94 self.file_count = self.note_set.count()