48 lines
1.7 KiB
Python
48 lines
1.7 KiB
Python
from django.core.files.base import ContentFile
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from django.db import models, IntegrityError
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from django_softdelete.models import SoftDeleteModel
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class ItemManager(models.Manager):
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def create(self, **kwargs):
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if 'uid' in kwargs:
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raise ValueError('uid must not be set manually')
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uid = Item.objects.filter(event=kwargs['event']).count() + 1
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kwargs['uid'] = uid
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return super().create(**kwargs)
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class Item(models.Model):
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iid = models.AutoField(primary_key=True)
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uid = models.IntegerField()
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description = models.TextField()
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event = models.ForeignKey('Event', models.CASCADE, db_column='eid')
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container = models.ForeignKey('Container', models.CASCADE, db_column='cid')
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returned_at = models.DateTimeField(blank=True, null=True)
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created_at = models.DateTimeField(blank=True, null=True)
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updated_at = models.DateTimeField(blank=True, null=True)
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objects = ItemManager()
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class Meta:
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unique_together = (('uid', 'event'),)
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class Container(models.Model):
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cid = models.AutoField(primary_key=True)
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name = models.CharField(max_length=255)
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created_at = models.DateTimeField(blank=True, null=True)
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updated_at = models.DateTimeField(blank=True, null=True)
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class Event(models.Model):
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eid = models.AutoField(primary_key=True)
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name = models.CharField(max_length=255)
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slug = models.CharField(max_length=255, unique=True)
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start = models.DateTimeField(blank=True, null=True)
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end = models.DateTimeField(blank=True, null=True)
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pre_start = models.DateTimeField(blank=True, null=True)
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post_end = models.DateTimeField(blank=True, null=True)
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created_at = models.DateTimeField(blank=True, null=True)
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updated_at = models.DateTimeField(blank=True, null=True)
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