88 lines
2.2 KiB
Python
88 lines
2.2 KiB
Python
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from django.utils import timezone
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from django.db import models
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from django.utils.translation import ugettext_lazy as _
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from django.core.validators import MaxValueValidator, MinValueValidator
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from taggit.managers import TaggableManager
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class Taggable(models.Model):
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'''
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This abstract model represtens an object that is taggable
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using django-taggit
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'''
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class Meta:
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abstract = True
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tags = TaggableManager(blank=True)
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class Mapable(models.Model):
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'''
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This abstract model class represents an object that can be
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displayed on a map.
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'''
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class Meta:
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abstract = True
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name = models.CharField(
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max_length=50,
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verbose_name=_('Name'),
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)
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latitude = models.FloatField(
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validators=[
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MinValueValidator(-90),
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MaxValueValidator(90)
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],
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verbose_name=_('Latitude'),
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help_text=_('Latitude in decimal format: e. g. 41.40338')
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)
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longitude = models.FloatField(
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validators=[
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MinValueValidator(-180),
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MaxValueValidator(180)
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],
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verbose_name=_('Longitude'),
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help_text=_('Longitude in decimal format: e. g. 2.17403')
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)
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class Submittable(models.Model):
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'''
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This abstract model class represents an object that can be submitted by
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an explorer.
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'''
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class Meta:
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abstract = True
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submitted_when = models.DateTimeField(
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auto_now_add=True,
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null=True,
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verbose_name=_('Submission date')
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)
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submitted_by = models.ForeignKey(
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'Explorer',
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on_delete=models.SET_NULL,
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null=True,
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blank=True,
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related_name='%(class)ss',
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verbose_name=_('Submitter')
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)
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class Expireable(models.Model):
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"""
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Base class for things that can expire, i.e. Vouchers
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"""
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class Meta:
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abstract = True
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created_when = models.DateTimeField(
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auto_now_add=True,
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verbose_name=_('Creation date')
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)
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expires_when = models.DateTimeField(
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verbose_name=_('Expiration date')
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)
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@property
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def is_expired(self):
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return timezone.now() > self.expires_when
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