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https://github.com/graphql-python/graphene-django.git
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c0edb0c927
Basic Proxy model support
87 lines
2.7 KiB
Python
87 lines
2.7 KiB
Python
from __future__ import absolute_import
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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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CHOICES = (
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(1, 'this'),
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(2, _('that'))
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)
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class Pet(models.Model):
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name = models.CharField(max_length=30)
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class FilmDetails(models.Model):
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location = models.CharField(max_length=30)
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film = models.OneToOneField('Film', related_name='details')
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class Film(models.Model):
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reporters = models.ManyToManyField('Reporter',
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related_name='films')
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class DoeReporterManager(models.Manager):
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def get_queryset(self):
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return super(DoeReporterManager, self).get_queryset().filter(last_name="Doe")
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class Reporter(models.Model):
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first_name = models.CharField(max_length=30)
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last_name = models.CharField(max_length=30)
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email = models.EmailField()
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pets = models.ManyToManyField('self')
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a_choice = models.CharField(max_length=30, choices=CHOICES)
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objects = models.Manager()
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doe_objects = DoeReporterManager()
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reporter_type = models.IntegerField(
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'Reporter Type',
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null=True,
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blank=True,
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choices=[(1, u'Regular'), (2, u'CNN Reporter')]
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)
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def __str__(self): # __unicode__ on Python 2
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return "%s %s" % (self.first_name, self.last_name)
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def __init__(self, *args, **kwargs):
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"""
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Override the init method so that during runtime, Django
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can know that this object can be a CNNReporter by casting
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it to the proxy model. Otherwise, as far as Django knows,
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when a CNNReporter is pulled from the database, it is still
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of type Reporter. This was added to test proxy model support.
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"""
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super(Reporter, self).__init__(*args, **kwargs)
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if self.reporter_type == 2: # quick and dirty way without enums
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self.__class__ = CNNReporter
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class CNNReporter(Reporter):
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"""
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This class is a proxy model for Reporter, used for testing
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proxy model support
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"""
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class Meta:
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proxy = True
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class Article(models.Model):
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headline = models.CharField(max_length=100)
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pub_date = models.DateField()
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pub_date_time = models.DateTimeField()
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reporter = models.ForeignKey(Reporter, related_name='articles')
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editor = models.ForeignKey(Reporter, related_name='edited_articles_+')
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lang = models.CharField(max_length=2, help_text='Language', choices=[
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('es', 'Spanish'),
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('en', 'English')
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], default='es')
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importance = models.IntegerField('Importance', null=True, blank=True,
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choices=[(1, u'Very important'), (2, u'Not as important')])
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def __str__(self): # __unicode__ on Python 2
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return self.headline
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class Meta:
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ordering = ('headline',)
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