"""
25. Default manipulators
"""

from django.db import models

class Musician(models.Model):
    first_name = models.CharField(maxlength=30)
    last_name = models.CharField(maxlength=30)

    def __repr__(self):
        return "%s %s" % (self.first_name, self.last_name)

class Album(models.Model):
    name = models.CharField(maxlength=100)
    musician = models.ForeignKey(Musician)
    release_date = models.DateField(blank=True, null=True)

    def __repr__(self):
        return self.name

API_TESTS = """
>>> from django.utils.datastructures import MultiValueDict

# Create a Musician object via the default AddManipulator.
>>> man = Musician.AddManipulator()
>>> data = MultiValueDict({'first_name': ['Ella'], 'last_name': ['Fitzgerald']})

>>> man.get_validation_errors(data)
{}
>>> man.do_html2python(data)
>>> m1 = man.save(data)

# Verify it worked.
>>> Musician.objects.get_list()
[Ella Fitzgerald]
>>> [m1] == Musician.objects.get_list()
True

# Attempt to add a Musician without a first_name.
>>> man.get_validation_errors(MultiValueDict({'last_name': ['Blakey']}))
{'first_name': ['This field is required.']}

# Attempt to add a Musician without a first_name and last_name.
>>> man.get_validation_errors(MultiValueDict({}))
{'first_name': ['This field is required.'], 'last_name': ['This field is required.']}

# Attempt to create an Album without a name or musician.
>>> man = Album.AddManipulator()
>>> man.get_validation_errors(MultiValueDict({}))
{'musician': ['This field is required.'], 'name': ['This field is required.']}

# Attempt to create an Album with an invalid musician.
>>> man.get_validation_errors(MultiValueDict({'name': ['Sallies Fforth'], 'musician': ['foo']}))
{'musician': ["Select a valid choice; 'foo' is not in ['', '1']."]}

# Attempt to create an Album with an invalid release_date.
>>> man.get_validation_errors(MultiValueDict({'name': ['Sallies Fforth'], 'musician': ['1'], 'release_date': 'today'}))
{'release_date': ['Enter a valid date in YYYY-MM-DD format.']}

# Create an Album without a release_date (because it's optional).
>>> data = MultiValueDict({'name': ['Ella and Basie'], 'musician': ['1']})
>>> man.get_validation_errors(data)
{}
>>> man.do_html2python(data)
>>> a1 = man.save(data)

# Verify it worked.
>>> Album.objects.get_list()
[Ella and Basie]
>>> Album.objects.get_object().get_musician()
Ella Fitzgerald

# Create an Album with a release_date.
>>> data = MultiValueDict({'name': ['Ultimate Ella'], 'musician': ['1'], 'release_date': ['2005-02-13']})
>>> man.get_validation_errors(data)
{}
>>> man.do_html2python(data)
>>> a2 = man.save(data)

# Verify it worked.
>>> Album.objects.get_list(order_by=['name'])
[Ella and Basie, Ultimate Ella]
>>> a2 = Album.objects.get_object(pk=2)
>>> a2
Ultimate Ella
>>> a2.release_date
datetime.date(2005, 2, 13)

# Test follow (inline editing) functionality.
>>> man = Musician.ChangeManipulator(m1, follow={"albums": True})
>>> data = man.flatten_data()
>>> sorted_list = data.items()
>>> sorted_list.sort(lambda x, y: cmp(x[0], y[0]))
>>> sorted_list
[('album.0.id', 1), ('album.0.name', 'Ella and Basie'), ('album.0.release_date', ''), ('album.1.id', 2), ('album.1.name', 'Ultimate Ella'), ('album.1.release_date', '2005-02-13'), ('first_name', 'Ella'), ('id', 1L), ('last_name', 'Fitzgerald')]
"""