61 lines
2.6 KiB
Python
61 lines
2.6 KiB
Python
from django.db import models
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from django.contrib.auth.models import User
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# class Organization(models.Model):
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# # Tree structure implemented such that child node has left ID
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# # greater than all parents, and right ID less than all parents
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# left_tree_id = models.IntegerField(unique=True, db_index=True)
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# right_tree_id = models.IntegerField(unique=True, db_index=True)
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# # This is a duplicate, but we keep this to enforce unique name
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# # constraint
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# parent = models.ForeignKey('self', null=True, blank=True)
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# name = models.CharField(max_length=200)
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# ORG_TYPES= (('course','course'),
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# ('chapter','chapter'),
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# ('section','section'),)
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# org_type = models.CharField(max_length=32, choices=ORG_TYPES)
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# available = models.DateField(null=True, blank=True)
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# due = models.DateField(null=True, blank=True)
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# # JSON dictionary of metadata:
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# # Time for a video, format of a section, etc.
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# metadata = models.TextField(null=True, blank=True)
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# class Modules(models.Model):
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# MOD_TYPES = (('hw','homework'),
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# ('vid','video_clip'),
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# ('lay','layout'),
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# (),)
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# module_type = models.CharField(max_length=100)
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# left_tree_id = models.IntegerField(unique=True, db_index=True)
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# right_tree_id = models.IntegerField(unique=True, db_index=True)
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# LAYOUT_TYPES = (('leaf','leaf'),
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# ('tab','tab'),
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# ('seq','sequential'),
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# ('sim','simultaneous'),)
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# layout_type = models.CharField(max_length=32, choices=LAYOUT_TYPES)
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# data = models.TextField(null=True, blank=True)
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#class HomeworkProblems(models.Model):
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class StudentModule(models.Model):
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# For a homework problem, contains a JSON
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# object consisting of state
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state = models.TextField(null=True, blank=True)
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grade = models.FloatField(null=True, blank=True)
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student = models.ForeignKey(User)
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MODULE_TYPES = (('problem','problem'),
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('video','video'),
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('html','html'),
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)
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module_type = models.CharField(max_length=32, choices=MODULE_TYPES, default='problem')
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module_id = models.CharField(max_length=255) # Filename for homeworks, etc.
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created = models.DateTimeField(auto_now_add=True)
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modified = models.DateTimeField(auto_now=True)
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xml = models.TextField(blank=True)
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class Meta:
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unique_together = (('student', 'module_id', 'module_type'),)
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def __unicode__(self):
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return self.module_type+'/'+self.student.username+"/"+self.module_id+'/'+str(self.state)[:20]
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