mirror of
https://github.com/graphql-python/graphene-django.git
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151 lines
4.0 KiB
Python
151 lines
4.0 KiB
Python
from django.db import models
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from django.utils.translation import gettext_lazy as _
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CHOICES = ((1, "this"), (2, _("that")))
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class Person(models.Model):
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class Meta:
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ordering = ["pk"]
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name = models.CharField(max_length=30)
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parent = models.ForeignKey(
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"self", on_delete=models.CASCADE, null=True, blank=True, related_name="children"
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)
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class Pet(models.Model):
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class Meta:
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ordering = ["pk"]
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name = models.CharField(max_length=30)
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age = models.PositiveIntegerField()
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owner = models.ForeignKey(
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"Person", on_delete=models.CASCADE, null=True, blank=True, related_name="pets"
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)
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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(
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"Film",
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on_delete=models.CASCADE,
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related_name="details",
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null=True,
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blank=True,
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)
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class Film(models.Model):
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class Meta:
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ordering = ["pk"]
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genre = models.CharField(
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max_length=2,
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help_text="Genre",
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choices=[("do", "Documentary"), ("ac", "Action"), ("ot", "Other")],
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default="ot",
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)
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reporters = models.ManyToManyField("Reporter", 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().get_queryset().filter(last_name="Doe")
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class Reporter(models.Model):
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class Meta:
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ordering = ["pk"]
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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.IntegerField(choices=CHOICES, null=True, blank=True)
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objects = models.Manager()
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doe_objects = DoeReporterManager()
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fans = models.ManyToManyField(Person)
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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, "Regular"), (2, "CNN Reporter")],
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)
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def __str__(self): # __unicode__ on Python 2
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return f"{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().__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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def some_method(self):
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return 123
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class CNNReporterManager(models.Manager):
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def get_queryset(self):
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return super().get_queryset().filter(reporter_type=2)
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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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objects = CNNReporterManager()
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class APNewsReporter(Reporter):
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"""
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This class only inherits from Reporter for testing multi table inheritance
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similar to what you'd see in django-polymorphic
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"""
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alias = models.CharField(max_length=30)
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objects = models.Manager()
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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(auto_now_add=True)
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pub_date_time = models.DateTimeField(auto_now_add=True)
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reporter = models.ForeignKey(
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Reporter, on_delete=models.CASCADE, related_name="articles"
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)
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editor = models.ForeignKey(
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Reporter, on_delete=models.CASCADE, related_name="edited_articles_+"
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)
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lang = models.CharField(
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max_length=2,
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help_text="Language",
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choices=[("es", "Spanish"), ("en", "English")],
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default="es",
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)
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importance = models.IntegerField(
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"Importance",
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null=True,
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blank=True,
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choices=[(1, "Very important"), (2, "Not as important")],
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)
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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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