Python Band.save方法代码示例

# 需要导入模块: from tests.models import Band [as 别名]
# 或者: from tests.models.Band import save [as 别名]
    def test_child_updates_without_ids(self):
        john = BandMember(name='John Lennon')
        beatles = Band(name='The Beatles', members=[
            john
        ])
        beatles.save()
        john_id = john.id

        paul = BandMember(name='Paul McCartney')
        beatles.members.add(paul)

        BandMembersFormset = childformset_factory(Band, BandMember, extra=3)
        band_members_formset = BandMembersFormset({
            'form-TOTAL_FORMS': 2,
            'form-INITIAL_FORMS': 2,
            'form-MAX_NUM_FORMS': 1000,

            'form-0-name': 'John Lennon',
            'form-0-id': john_id,

            'form-1-name': 'Paul McCartney',  # NB no way to know programmatically that this form corresponds to the 'paul' object
            'form-1-id': '',
        }, instance=beatles)

        self.assertTrue(band_members_formset.is_valid())
        band_members_formset.save(commit=False)
        self.assertEqual(2, beatles.members.count())

# 需要导入模块: from tests.models import Band [as 别名]
# 或者: from tests.models.Band import save [as 别名]
    def test_child_updates_without_ids(self):
        first_song = Song(name='I Saw Her Standing There')
        album = Album(name='Please Please Me', songs=[first_song])
        beatles = Band(name='The Beatles', albums=[album])
        beatles.save()

        first_song_id = first_song.id

        second_song = Song(name='Misery')
        album.songs.add(second_song)

        AlbumsFormset = childformset_factory(Band, Album, form=ClusterForm, extra=3)

        albums_formset = AlbumsFormset({
            'form-TOTAL_FORMS': 1,
            'form-INITIAL_FORMS': 1,
            'form-MAX_NUM_FORMS': 1000,

            'form-0-name': 'Please Please Me',
            'form-0-id': album.id,

            'form-0-songs-TOTAL_FORMS': 2,
            'form-0-songs-INITIAL_FORMS': 2,
            'form-0-songs-MAX_NUM_FORMS': 1000,

            'form-0-songs-0-name': 'I Saw Her Standing There',
            'form-0-songs-0-id': first_song_id,

            'form-0-songs-1-name': 'Misery',
            'form-0-songs-1-id': '',
        }, instance=beatles)

        self.assertTrue(albums_formset.is_valid())
        albums_formset.save(commit=False)
        self.assertEqual(2, beatles.albums.first().songs.count())

# 需要导入模块: from tests.models import Band [as 别名]
# 或者: from tests.models.Band import save [as 别名]
    def test_incoming_form_data(self):
        class BandForm(ClusterForm):
            class Meta:
                model = Band
                fields = ['name']

        beatles = Band(name='The Beatles', albums=[
            Album(name='Please Please Me', songs=[
                Song(name='I Saw Her Standing There')
            ]),
        ])
        form = BandForm({
            'name': 'The Beatles',

            'members-TOTAL_FORMS': 0,
            'members-INITIAL_FORMS': 0,
            'members-MAX_NUM_FORMS': 1000,

            'albums-TOTAL_FORMS': 1,
            'albums-INITIAL_FORMS': 0,
            'albums-MAX_NUM_FORMS': 1000,

            'albums-0-name': 'Please Please Me',
            'albums-0-id': '',
            'albums-0-ORDER': 1,

            'albums-0-songs-TOTAL_FORMS': 2,
            'albums-0-songs-INITIAL_FORMS': 1,
            'albums-0-songs-MAX_NUM_FORMS': 1000,

            'albums-0-songs-0-name': 'I Saw Her Standing There',
            'albums-0-songs-0-DELETE': 'albums-0-songs-0-DELETE',
            'albums-0-songs-0-id': '',

            'albums-0-songs-1-name': 'Misery',
            'albums-0-songs-1-id': '',
        }, instance=beatles)

        self.assertTrue(form.is_valid())
        result = form.save(commit=False)
        self.assertEqual(result, beatles)

        self.assertEqual(1, beatles.albums.count())
        self.assertEqual('Please Please Me', beatles.albums.first().name)

        self.assertEqual(1, beatles.albums.first().songs.all().count())
        self.assertEqual('Misery', beatles.albums.first().songs.first().name)

        # should not exist in the database yet
        self.assertFalse(Album.objects.filter(name='Please Please Me').exists())
        self.assertFalse(Song.objects.filter(name='Misery').exists())

        beatles.save()
        # this should create database entries
        self.assertTrue(Band.objects.filter(name='The Beatles').exists())
        self.assertTrue(Album.objects.filter(name='Please Please Me').exists())
        self.assertTrue(Song.objects.filter(name='Misery').exists())
        self.assertFalse(Song.objects.filter(name='I Saw Her Standing There').exists())

# 需要导入模块: from tests.models import Band [as 别名]
# 或者: from tests.models.Band import save [as 别名]
    def test_save_commit_false(self):
        first_song = Song(name='I Saw Her Standing There')
        second_song = Song(name='Mystery')
        album = Album(name='Please Please Me', songs=[first_song, second_song])
        beatles = Band(name='The Beatles', albums=[album])
        beatles.save()
        first_song_id, second_song_id = first_song.id, second_song.id

        AlbumsFormset = childformset_factory(Band, Album, form=ClusterForm, extra=3)

        albums_formset = AlbumsFormset({
            'form-TOTAL_FORMS': 1,
            'form-INITIAL_FORMS': 1,
            'form-MAX_NUM_FORMS': 1000,

            'form-0-name': 'Please Please Me',
            'form-0-id': album.id,

            'form-0-songs-TOTAL_FORMS': 4,
            'form-0-songs-INITIAL_FORMS': 2,
            'form-0-songs-MAX_NUM_FORMS': 1000,

            'form-0-songs-0-name': 'I Saw Her Standing There',
            'form-0-songs-0-DELETE': 'form-0-songs-0-DELETE',
            'form-0-songs-0-id': first_song_id,

            'form-0-songs-1-name': 'Misery',  # changing data of an existing record
            'form-0-songs-1-id': second_song_id,

            'form-0-songs-2-name': '',
            'form-0-songs-2-id': '',

            'form-0-songs-3-name': 'Chains',  # adding a record
            'form-0-songs-3-id': '',
        }, instance=beatles)
        self.assertTrue(albums_formset.is_valid())
        updated_albums = albums_formset.save(commit=False)

        # updated_members should only include the items that have been changed and not deleted
        self.assertEqual(1, len(updated_albums))
        self.assertEqual('Please Please Me', updated_albums[0].name)
        self.assertEqual(2, updated_albums[0].songs.count())
        self.assertEqual('Misery', updated_albums[0].songs.first().name)
        self.assertEqual(second_song_id, updated_albums[0].songs.first().id)

        self.assertEqual('Chains', updated_albums[0].songs.all()[1].name)
        self.assertEqual(None, updated_albums[0].songs.all()[1].id)

        # Changes should not be committed to the db yet
        self.assertTrue(Song.objects.filter(name='I Saw Her Standing There', id=first_song_id).exists())
        self.assertEqual('Mystery', Song.objects.get(id=second_song_id).name)
        self.assertFalse(Song.objects.filter(name='Chains').exists())

        beatles.albums.first().songs.commit()
        # this should create/update/delete database entries
        self.assertEqual('Misery', Song.objects.get(id=second_song_id).name)
        self.assertTrue(Song.objects.filter(name='Chains').exists())
        self.assertFalse(Song.objects.filter(name='I Saw Her Standing There').exists())

# 需要导入模块: from tests.models import Band [as 别名]
# 或者: from tests.models.Band import save [as 别名]
    def test_can_create_cluster(self):
        beatles = Band(name='The Beatles')

        self.assertEqual(0, beatles.members.count())

        beatles.members = [
            BandMember(name='John Lennon'),
            BandMember(name='Paul McCartney'),
        ]

        # we should be able to query this relation using (some) queryset methods
        self.assertEqual(2, beatles.members.count())
        self.assertEqual('John Lennon', beatles.members.all()[0].name)
        self.assertEqual('Paul McCartney', beatles.members.filter(name='Paul McCartney')[0].name)
        self.assertEqual('Paul McCartney', beatles.members.get(name='Paul McCartney').name)
        self.assertRaises(BandMember.DoesNotExist, lambda: beatles.members.get(name='Reginald Dwight'))
        self.assertRaises(BandMember.MultipleObjectsReturned, lambda: beatles.members.get())

        self.assertEqual([('Paul McCartney',)], beatles.members.filter(name='Paul McCartney').values_list('name'))
        self.assertEqual(['Paul McCartney'], beatles.members.filter(name='Paul McCartney').values_list('name', flat=True))
        # quick-and-dirty check that we can invoke values_list with empty args list
        beatles.members.filter(name='Paul McCartney').values_list()

        self.assertTrue(beatles.members.filter(name='Paul McCartney').exists())
        self.assertFalse(beatles.members.filter(name='Reginald Dwight').exists())

        self.assertEqual('John Lennon', beatles.members.first().name)
        self.assertEqual('Paul McCartney', beatles.members.last().name)

        self.assertTrue('John Lennon', beatles.members.order_by('name').first())
        self.assertTrue('Paul McCartney', beatles.members.order_by('-name').first())

        # these should not exist in the database yet
        self.assertFalse(Band.objects.filter(name='The Beatles').exists())
        self.assertFalse(BandMember.objects.filter(name='John Lennon').exists())

        beatles.save()
        # this should create database entries
        self.assertTrue(Band.objects.filter(name='The Beatles').exists())
        self.assertTrue(BandMember.objects.filter(name='John Lennon').exists())

        john_lennon = BandMember.objects.get(name='John Lennon')
        beatles.members = [john_lennon]
        # reassigning should take effect on the in-memory record
        self.assertEqual(1, beatles.members.count())
        # but not the database
        self.assertEqual(2, Band.objects.get(name='The Beatles').members.count())

        beatles.save()
        # now updated in the database
        self.assertEqual(1, Band.objects.get(name='The Beatles').members.count())
        self.assertEqual(1, BandMember.objects.filter(name='John Lennon').count())
        # removed member should be deleted from the db entirely
        self.assertEqual(0, BandMember.objects.filter(name='Paul McCartney').count())

        # queries on beatles.members should now revert to SQL
        self.assertTrue(beatles.members.extra(where=["tests_bandmember.name='John Lennon'"]).exists())

# 需要导入模块: from tests.models import Band [as 别名]
# 或者: from tests.models.Band import save [as 别名]
    def test_can_only_commit_on_saved_parent(self):
        beatles = Band(name='The Beatles', members=[
            BandMember(name='John Lennon'),
            BandMember(name='Paul McCartney'),
        ])
        self.assertRaises(IntegrityError, lambda: beatles.members.commit())

        beatles.save()
        beatles.members.commit()

# 需要导入模块: from tests.models import Band [as 别名]
# 或者: from tests.models.Band import save [as 别名]
 def test_model_with_zero_pk(self):
     beatles = Band(name='The Beatles', members=[
         BandMember(name='John Lennon'),
         BandMember(name='Paul McCartney'),
     ])
     beatles.save()
     beatles.pk = 0
     beatles.members.commit()
     beatles.save()
     self.assertEqual(Band.objects.get(pk=0).name, 'The Beatles')

# 需要导入模块: from tests.models import Band [as 别名]
# 或者: from tests.models.Band import save [as 别名]
    def test_saved_items(self):
        class BandForm(ClusterForm):
            class Meta:
                model = Band
                fields = ['name']

        first_song = Song(name='I Saw Her Standing There')
        second_song = Song(name='Misery')
        album = Album(name='Please Please Me', songs=[first_song, second_song])
        beatles = Band(name='The Beatles', albums=[album])
        beatles.save()

        self.assertTrue(album.id)
        self.assertTrue(first_song.id)
        self.assertTrue(second_song.id)

        form = BandForm({
            'name': 'The Beatles',

            'members-TOTAL_FORMS': 0,
            'members-INITIAL_FORMS': 0,
            'members-MAX_NUM_FORMS': 1000,

            'albums-TOTAL_FORMS': 1,
            'albums-INITIAL_FORMS': 1,
            'albums-MAX_NUM_FORMS': 1000,

            'albums-0-name': album.name,
            'albums-0-id': album.id,
            'albums-0-ORDER': 1,

            'albums-0-songs-TOTAL_FORMS': 4,
            'albums-0-songs-INITIAL_FORMS': 2,
            'albums-0-songs-MAX_NUM_FORMS': 1000,

            'albums-0-songs-0-name': first_song.name,
            'albums-0-songs-0-DELETE': 'albums-0-songs-0-DELETE',
            'albums-0-songs-0-id': first_song.id,

            'albums-0-songs-1-name': second_song.name,
            'albums-0-songs-1-id': second_song.id,

            'albums-0-songs-2-name': 'Anna',
            'albums-0-songs-2-id': '',

            'albums-0-songs-3-name': '',
            'albums-0-songs-3-id': '',
        }, instance=beatles)
        self.assertTrue(form.is_valid())
        form.save()

        self.assertTrue(Song.objects.filter(name='Anna').exists())
        self.assertTrue(Song.objects.filter(name='Misery').exists())
        self.assertFalse(Song.objects.filter(name='I Saw Her Standing There').exists())

# 需要导入模块: from tests.models import Band [as 别名]
# 或者: from tests.models.Band import save [as 别名]
 def test_integrity_error_with_none_pk(self):
     beatles = Band(name='The Beatles', members=[
         BandMember(name='John Lennon'),
         BandMember(name='Paul McCartney'),
     ])
     beatles.save()
     beatles.pk = None
     self.assertRaises(IntegrityError, lambda: beatles.members.commit())
     # this should work fine, as Django will end up cloning this entity
     beatles.save()
     self.assertEqual(Band.objects.get(pk=beatles.pk).name, 'The Beatles')

# 需要导入模块: from tests.models import Band [as 别名]
# 或者: from tests.models.Band import save [as 别名]
    def test_save_commit_false(self):
        john = BandMember(name='John Lennon')
        paul = BandMember(name='Paul McCartney')
        ringo = BandMember(name='Richard Starkey')
        beatles = Band(name='The Beatles', members=[
            john, paul, ringo
        ])
        beatles.save()
        john_id, paul_id, ringo_id = john.id, paul.id, ringo.id

        BandMembersFormset = childformset_factory(Band, BandMember, extra=3)

        band_members_formset = BandMembersFormset({
            'form-TOTAL_FORMS': 5,
            'form-INITIAL_FORMS': 3,
            'form-MAX_NUM_FORMS': 1000,

            'form-0-name': 'John Lennon',
            'form-0-DELETE': 'form-0-DELETE',
            'form-0-id': john_id,

            'form-1-name': 'Paul McCartney',
            'form-1-id': paul_id,

            'form-2-name': 'Ringo Starr',  # changing data of an existing record
            'form-2-id': ringo_id,

            'form-3-name': '',
            'form-3-id': '',

            'form-4-name': 'George Harrison',  # adding a record
            'form-4-id': '',
        }, instance=beatles)
        self.assertTrue(band_members_formset.is_valid())
        updated_members = band_members_formset.save(commit=False)

        # updated_members should only include the items that have been changed and not deleted
        self.assertEqual(2, len(updated_members))
        self.assertEqual('Ringo Starr', updated_members[0].name)
        self.assertEqual(ringo_id, updated_members[0].id)

        self.assertEqual('George Harrison', updated_members[1].name)
        self.assertEqual(None, updated_members[1].id)

        # Changes should not be committed to the db yet
        self.assertTrue(BandMember.objects.filter(name='John Lennon', id=john_id).exists())
        self.assertEqual('Richard Starkey', BandMember.objects.get(id=ringo_id).name)
        self.assertFalse(BandMember.objects.filter(name='George Harrison').exists())

        beatles.members.commit()
        # this should create/update/delete database entries
        self.assertEqual('Ringo Starr', BandMember.objects.get(id=ringo_id).name)
        self.assertTrue(BandMember.objects.filter(name='George Harrison').exists())
        self.assertFalse(BandMember.objects.filter(name='John Lennon').exists())

# 需要导入模块: from tests.models import Band [as 别名]
# 或者: from tests.models.Band import save [as 别名]
    def test_ignore_validation_on_deleted_items(self):
        class BandForm(ClusterForm):
            class Meta:
                model = Band
                fields = ['name']

        please_please_me = Album(name='Please Please Me', release_date=datetime.date(1963, 3, 22))
        beatles = Band(name='The Beatles', albums=[please_please_me])
        beatles.save()

        form = BandForm({
            'name': "The Beatles",

            'members-TOTAL_FORMS': 0,
            'members-INITIAL_FORMS': 0,
            'members-MAX_NUM_FORMS': 1000,

            'albums-TOTAL_FORMS': 1,
            'albums-INITIAL_FORMS': 1,
            'albums-MAX_NUM_FORMS': 1000,

            'albums-0-name': 'With The Beatles',
            'albums-0-release_date': '1963-02-31',  # invalid date
            'albums-0-id': please_please_me.id,
            'albums-0-ORDER': 1,
        }, instance=beatles)

        self.assertFalse(form.is_valid())

        form = BandForm({
            'name': "The Beatles",

            'members-TOTAL_FORMS': 0,
            'members-INITIAL_FORMS': 0,
            'members-MAX_NUM_FORMS': 1000,

            'albums-TOTAL_FORMS': 1,
            'albums-INITIAL_FORMS': 1,
            'albums-MAX_NUM_FORMS': 1000,

            'albums-0-name': 'With The Beatles',
            'albums-0-release_date': '1963-02-31',  # invalid date
            'albums-0-id': please_please_me.id,
            'albums-0-ORDER': 1,
            'albums-0-DELETE': 'albums-0-DELETE',
        }, instance=beatles)

        self.assertTrue(form.is_valid())
        form.save(commit=False)
        self.assertEqual(0, beatles.albums.count())
        self.assertEqual(1, Band.objects.get(id=beatles.id).albums.count())
        beatles.save()
        self.assertEqual(0, Band.objects.get(id=beatles.id).albums.count())

# 需要导入模块: from tests.models import Band [as 别名]
# 或者: from tests.models.Band import save [as 别名]
    def test_saved_items_with_non_db_relation(self):
        class BandForm(ClusterForm):
            class Meta:
                model = Band
                fields = ['name']

        first_song = Song(name='I Saw Her Standing There')
        second_song = Song(name='Misery')
        album = Album(name='Please Please Me', songs=[first_song, second_song])
        beatles = Band(name='The Beatles', albums=[album])
        beatles.save()

        # pack and unpack the record so that we're working with a non-db-backed queryset
        new_beatles = Band.from_json(beatles.to_json())

        form = BandForm({
            'name': 'The Beatles',

            'members-TOTAL_FORMS': 0,
            'members-INITIAL_FORMS': 0,
            'members-MAX_NUM_FORMS': 1000,

            'albums-TOTAL_FORMS': 1,
            'albums-INITIAL_FORMS': 1,
            'albums-MAX_NUM_FORMS': 1000,

            'albums-0-name': album.name,
            'albums-0-id': album.id,
            'albums-0-ORDER': 1,

            'albums-0-songs-TOTAL_FORMS': 4,
            'albums-0-songs-INITIAL_FORMS': 2,
            'albums-0-songs-MAX_NUM_FORMS': 1000,

            'albums-0-songs-0-name': first_song.name,
            'albums-0-songs-0-DELETE': 'albums-0-songs-0-DELETE',
            'albums-0-songs-0-id': first_song.id,

            'albums-0-songs-1-name': second_song.name,
            'albums-0-songs-1-id': second_song.id,

            'albums-0-songs-2-name': 'Anna',
            'albums-0-songs-2-id': '',

            'albums-0-songs-3-name': '',
            'albums-0-songs-3-id': '',
        }, instance=new_beatles)
        self.assertTrue(form.is_valid())
        form.save()

        self.assertTrue(Song.objects.filter(name='Anna').exists())
        self.assertFalse(Song.objects.filter(name='I Saw Her Standing There').exists())

# 需要导入模块: from tests.models import Band [as 别名]
# 或者: from tests.models.Band import save [as 别名]
    def test_save_commit_true(self):
        john = BandMember(name='John Lennon')
        paul = BandMember(name='Paul McCartney')
        ringo = BandMember(name='Richard Starkey')
        beatles = Band(name='The Beatles', members=[
            john, paul, ringo
        ])
        beatles.save()

        john_id, paul_id, ringo_id = john.id, paul.id, ringo.id

        self.assertTrue(john_id)
        self.assertTrue(paul_id)

        band_members_formset = self.BandMembersFormset({
            'form-TOTAL_FORMS': 4,
            'form-INITIAL_FORMS': 3,
            'form-MAX_NUM_FORMS': 1000,

            'form-0-name': 'John Lennon',
            'form-0-DELETE': 'form-0-DELETE',
            'form-0-id': john_id,

            'form-1-name': 'Paul McCartney',
            'form-1-id': paul_id,

            'form-2-name': 'Ringo Starr',  # changing data of an existing record
            'form-2-id': ringo_id,

            'form-3-name': '',
            'form-3-id': '',
        }, queryset=beatles.members.all())
        self.assertTrue(band_members_formset.is_valid())

        updated_members = band_members_formset.save()
        self.assertEqual(1, len(updated_members))
        self.assertEqual('Ringo Starr', updated_members[0].name)
        self.assertEqual(ringo_id, updated_members[0].id)

        self.assertFalse(BandMember.objects.filter(id=john_id).exists())
        self.assertEqual('Paul McCartney', BandMember.objects.get(id=paul_id).name)
        self.assertEqual(beatles.id, BandMember.objects.get(id=paul_id).band_id)
        self.assertEqual('Ringo Starr', BandMember.objects.get(id=ringo_id).name)
        self.assertEqual(beatles.id, BandMember.objects.get(id=ringo_id).band_id)

# 需要导入模块: from tests.models import Band [as 别名]
# 或者: from tests.models.Band import save [as 别名]
    def test_cluster_form_without_formsets(self):
        class BandForm(ClusterForm):
            class Meta:
                model = Band
                formsets = ()
                fields = ['name']

        beatles = Band(name='The Beatles')
        beatles.save()

        form = BandForm({
            'name': "The New Beatles",
        }, instance=beatles)

        self.assertTrue(form.is_valid())

        form.save(commit=False)

        self.assertEqual(1, Band.objects.filter(name='The Beatles').count())
        beatles.save()
        self.assertEqual(0, Band.objects.filter(name='The Beatles').count())

# 需要导入模块: from tests.models import Band [as 别名]
# 或者: from tests.models.Band import save [as 别名]
    def test_save_with_update_fields(self):
        beatles = Band(name='The Beatles', members=[
            BandMember(name='John Lennon'),
            BandMember(name='Paul McCartney'),
        ], albums=[
            Album(name='Please Please Me', sort_order=1),
            Album(name='With The Beatles', sort_order=2),
            Album(name='Abbey Road', sort_order=3),
        ])

        beatles.save()

        # modify both relations, but only commit the change to members
        beatles.members.clear()
        beatles.albums.clear()
        beatles.name = 'The Rutles'
        beatles.save(update_fields=['name', 'members'])

        updated_beatles = Band.objects.get(pk=beatles.pk)
        self.assertEqual(updated_beatles.name, 'The Rutles')
        self.assertEqual(updated_beatles.members.count(), 0)
        self.assertEqual(updated_beatles.albums.count(), 3)