"""

Tests of ModelAdmin validation logic.

"""

from django.db import models

class Album(models.Model):

    title = models.CharField(max_length=150)

class Song(models.Model):

    title = models.CharField(max_length=150)

    album = models.ForeignKey(Album)

    original_release = models.DateField(editable=False)

    class Meta:

        ordering = ('title',)

    def __unicode__(self):

        return self.title

    def readonly_method_on_model(self):

        # does nothing

        pass

class TwoAlbumFKAndAnE(models.Model):

    album1 = models.ForeignKey(Album, related_name="album1_set")

    album2 = models.ForeignKey(Album, related_name="album2_set")

    e = models.CharField(max_length=1)

class Author(models.Model):

    name = models.CharField(max_length=100)

class Book(models.Model):

    name = models.CharField(max_length=100)

    subtitle = models.CharField(max_length=100)

    price = models.FloatField()

    authors = models.ManyToManyField(Author, through='AuthorsBooks')

class AuthorsBooks(models.Model):

    author = models.ForeignKey(Author)

    book = models.ForeignKey(Book)