def from_directory(cls, dir, **options):
if not os.path.exists(dir):
raise AttributeError("Directory '{0}' does not exit.".format(dir))
migration_kwargs, import_kwargs = cls._clean_options(options)
selected_models = migration_kwargs.pop('models')
selected_serializer = import_kwargs.pop('serializer')
found_models = []
files_and_serializers = {}
for file_name in os.listdir(dir):
matchobj = FILE_NAME_RE.search(file_name)
if matchobj is None:
continue
app_config = apps.get_app_config(matchobj.group(1))
model = app_config.get_model(matchobj.group(2))
if selected_models and model not in selected_models:
continue
serializer = (selected_serializer
or serializers.get_serializer(matchobj.group(3))())
found_models.append(model)
files_and_serializers[model] = (file_name, serializer)
model_list = sort_dependencies(found_models)
for model in model_list:
migration = ModelMigration(model, **migration_kwargs)
file_name, serializer = files_and_serializers[model]
file_path = os.path.join(dir, file_name)
with serializer.open_to_load(file_path) as file:
migration.import_data(file, serializer, **import_kwargs)
def test_file(self):
source_path = os.path.join(MIGRATIONS_DIR, 'backup')
output = StringIO()
call_command(
'import_models',
file=source_path,
plan='direct',
natural=True,
stdout=output,
)
self.assertIn('Entries were successfully imported.', output.getvalue())
source_path = os.path.join(MIGRATIONS_DIR, 'author.json')
with open(source_path, 'r') as source_file:
source = source_file.read()
migration = ModelMigration(Author)
result = migration.export_data(None, JsonSerializer)
self.assertEqual(source.splitlines(), result.splitlines())
source_path = os.path.join(MIGRATIONS_DIR, 'category.json')
with open(source_path, 'r') as source_file:
source = source_file.read()
migration = ModelMigration(Category)
result = migration.export_data(None, JsonSerializer)
self.assertEqual(source.splitlines(), result.splitlines())
source_path = os.path.join(MIGRATIONS_DIR, 'post.json')
with open(source_path, 'r') as source_file:
source = source_file.read()
migration = ModelMigration(Post)
result = migration.export_data(None, JsonSerializer)
self.assertEqual(source.splitlines(), result.splitlines())
def test_numeric_model(self):
migration = ModelMigration(NumericModel)
self.assertEqual(
[repr(fld) for fld in migration.fields],
['<yepes.contrib.datamigrations.fields.IntegerField: id>',
'<yepes.contrib.datamigrations.fields.IntegerField: integer>',
'<yepes.contrib.datamigrations.fields.IntegerField: integer_as_string>',
'<yepes.contrib.datamigrations.fields.FloatField: float>',
'<yepes.contrib.datamigrations.fields.FloatField: float_as_string>',
'<yepes.contrib.datamigrations.fields.NumberField: decimal>',
'<yepes.contrib.datamigrations.fields.NumberField: decimal_as_string>'],
)
self.assertEqual(migration.fields_to_export, migration.fields)
self.assertEqual(migration.fields_to_import, migration.fields)
self.assertEqual(
repr(migration.primary_key),
'<yepes.contrib.datamigrations.fields.IntegerField: id>',
)
self.assertIsNone(migration.natural_foreign_keys)
self.assertTrue(migration.can_create)
self.assertTrue(migration.can_export)
self.assertTrue(migration.can_import)
self.assertTrue(migration.can_update)
self.assertFalse(migration.requires_model_instances)
migration = ModelMigration(
NumericModel,
use_natural_primary_keys=True,
use_natural_foreign_keys=True,
)
self.assertEqual(
[repr(fld) for fld in migration.fields],
['<yepes.contrib.datamigrations.fields.IntegerField: id>',
'<yepes.contrib.datamigrations.fields.IntegerField: integer>',
'<yepes.contrib.datamigrations.fields.IntegerField: integer_as_string>',
'<yepes.contrib.datamigrations.fields.FloatField: float>',
'<yepes.contrib.datamigrations.fields.FloatField: float_as_string>',
'<yepes.contrib.datamigrations.fields.NumberField: decimal>',
'<yepes.contrib.datamigrations.fields.NumberField: decimal_as_string>'],
)
self.assertEqual(migration.fields_to_export, migration.fields)
self.assertEqual(migration.fields_to_import, migration.fields)
self.assertEqual(
repr(migration.primary_key),
'<yepes.contrib.datamigrations.fields.IntegerField: id>',
)
self.assertIsNone(migration.natural_foreign_keys)
self.assertTrue(migration.can_create)
self.assertTrue(migration.can_export)
self.assertTrue(migration.can_import)
self.assertTrue(migration.can_update)
self.assertFalse(migration.requires_model_instances)
def test_file(self):
migration = ModelMigration(Alphabet)
source_path = os.path.join(MIGRATIONS_DIR, 'alphabet.csv')
with open(source_path, 'r') as source_file:
source = source_file.read()
SingleImportFacade.from_file_path(
source_path,
model='datamigrations_facades_tests.Alphabet',
serializer='csv',
)
result = migration.export_data(serializer=CsvSerializer)
self.assertEqual(source.splitlines(), result.splitlines())
def test_boolean_migration(self):
migration = ModelMigration(BooleanModel)
self.assertEqual(
[repr(fld) for fld in migration.fields],
['<yepes.contrib.datamigrations.fields.IntegerField: id>',
'<yepes.contrib.datamigrations.fields.BooleanField: boolean>',
'<yepes.contrib.datamigrations.fields.BooleanField: boolean_as_string>',
'<yepes.contrib.datamigrations.fields.BooleanField: null_boolean>',
'<yepes.contrib.datamigrations.fields.BooleanField: null_boolean_as_string>'],
)
self.assertEqual(migration.fields_to_export, migration.fields)
self.assertEqual(migration.fields_to_import, migration.fields)
self.assertEqual(
repr(migration.primary_key),
'<yepes.contrib.datamigrations.fields.IntegerField: id>',
)
self.assertIsNone(migration.natural_foreign_keys)
self.assertTrue(migration.can_create)
self.assertTrue(migration.can_export)
self.assertTrue(migration.can_import)
self.assertTrue(migration.can_update)
self.assertFalse(migration.requires_model_instances)
migration = ModelMigration(
BooleanModel,
use_natural_primary_keys=True,
use_natural_foreign_keys=True,
)
self.assertEqual(
[repr(fld) for fld in migration.fields],
['<yepes.contrib.datamigrations.fields.IntegerField: id>',
'<yepes.contrib.datamigrations.fields.BooleanField: boolean>',
'<yepes.contrib.datamigrations.fields.BooleanField: boolean_as_string>',
'<yepes.contrib.datamigrations.fields.BooleanField: null_boolean>',
'<yepes.contrib.datamigrations.fields.BooleanField: null_boolean_as_string>'],
)
self.assertEqual(migration.fields_to_export, migration.fields)
self.assertEqual(migration.fields_to_import, migration.fields)
self.assertEqual(
repr(migration.primary_key),
'<yepes.contrib.datamigrations.fields.IntegerField: id>',
)
self.assertIsNone(migration.natural_foreign_keys)
self.assertTrue(migration.can_create)
self.assertTrue(migration.can_export)
self.assertTrue(migration.can_import)
self.assertTrue(migration.can_update)
self.assertFalse(migration.requires_model_instances)
def test_no_file(self):
migration = ModelMigration(Alphabet)
source_path = os.path.join(MIGRATIONS_DIR, 'alphabet.csv')
with open(source_path, 'r') as source_file:
source = source_file.read()
migration.import_data(source, CsvSerializer, DirectPlan)
output = StringIO()
call_command(
'export_model',
'datamigrations_commands_tests.Alphabet',
format='csv',
stdout=output,
)
result = output.getvalue()
self.assertEqual(source.splitlines(), result.splitlines())
def test_labels(self):
migration = ModelMigration(Category)
source_path = os.path.join(MIGRATIONS_DIR, 'category.json')
with open(source_path, 'r') as source_file:
migration.import_data(source_file, JsonSerializer, DirectPlan)
result_path = os.path.join(self.temp_dir, 'backup')
MultipleExportFacade.to_file_path(
result_path,
models=['datamigrations_facades_tests.Category'],
)
with open(result_path, 'r') as result_file:
result = result_file.read()
self.assertEqual(1, result.count('Type: MODEL;'))
self.assertIn('Name: datamigrations_facades_tests.category;', result)
def test_datetime_model(self):
migration = ModelMigration(DateTimeModel)
self.assertEqual(
[repr(fld) for fld in migration.fields],
['<yepes.contrib.datamigrations.fields.IntegerField: id>',
'<yepes.contrib.datamigrations.fields.DateField: date>',
'<yepes.contrib.datamigrations.fields.DateTimeField: datetime>',
'<yepes.contrib.datamigrations.fields.TimeField: time>'],
)
self.assertEqual(migration.fields_to_export, migration.fields)
self.assertEqual(migration.fields_to_import, migration.fields)
self.assertEqual(
repr(migration.primary_key),
'<yepes.contrib.datamigrations.fields.IntegerField: id>',
)
self.assertIsNone(migration.natural_foreign_keys)
self.assertTrue(migration.can_create)
self.assertTrue(migration.can_export)
self.assertTrue(migration.can_import)
self.assertTrue(migration.can_update)
self.assertFalse(migration.requires_model_instances)
migration = ModelMigration(
DateTimeModel,
use_natural_primary_keys=True,
use_natural_foreign_keys=True,
)
self.assertEqual(
[repr(fld) for fld in migration.fields],
['<yepes.contrib.datamigrations.fields.IntegerField: id>',
'<yepes.contrib.datamigrations.fields.DateField: date>',
'<yepes.contrib.datamigrations.fields.DateTimeField: datetime>',
'<yepes.contrib.datamigrations.fields.TimeField: time>'],
)
self.assertEqual(migration.fields_to_export, migration.fields)
self.assertEqual(migration.fields_to_import, migration.fields)
self.assertEqual(
repr(migration.primary_key),
'<yepes.contrib.datamigrations.fields.IntegerField: id>',
)
self.assertIsNone(migration.natural_foreign_keys)
self.assertTrue(migration.can_create)
self.assertTrue(migration.can_export)
self.assertTrue(migration.can_import)
self.assertTrue(migration.can_update)
self.assertFalse(migration.requires_model_instances)
def test_file(self):
migration = ModelMigration(Alphabet)
source_path = os.path.join(MIGRATIONS_DIR, 'alphabet.csv')
result_path = os.path.join(self.temp_dir, 'alphabet.csv')
with open(source_path, 'r') as source_file:
source = source_file.read()
migration.import_data(source, CsvSerializer, DirectPlan)
SingleExportFacade.to_file_path(
result_path,
model='datamigrations_facades_tests.Alphabet',
serializer='csv',
)
with open(result_path, 'r') as result_file:
result = result_file.read()
self.assertEqual(source.splitlines(), result.splitlines())
def test_file(self):
migration = ModelMigration(Alphabet)
source_path = os.path.join(MIGRATIONS_DIR, 'alphabet.csv')
with open(source_path, 'r') as source_file:
source = source_file.read()
output = StringIO()
call_command(
'import_model',
'datamigrations_commands_tests.Alphabet',
file=source_path,
format='csv',
stdout=output,
)
result = migration.export_data(serializer=CsvSerializer)
self.assertEqual(source.splitlines(), result.splitlines())
self.assertIn('Entries were successfully imported.', output.getvalue())
def to_directory(cls, dir, **options):
if not os.path.exists(dir):
os.makedirs(dir)
migration_kwargs, export_kwargs = cls._clean_options(options)
model_list = sort_dependencies(migration_kwargs.pop('models'))
model_list.reverse()
serializer = export_kwargs.pop('serializer')
for model in model_list:
migration = ModelMigration(model, **migration_kwargs)
migration_serializer = migration.get_serializer(serializer)
file_name = '{0}.{1}.{2}'.format(model._meta.app_label,
model._meta.model_name,
migration_serializer.name)
file_path = os.path.join(dir, file_name)
with migration_serializer.open_to_dump(file_path) as file:
migration.export_data(file, migration_serializer,
**export_kwargs)
def test_labels(self):
migration = ModelMigration(Category)
source_path = os.path.join(MIGRATIONS_DIR, 'category.json')
with open(source_path, 'r') as source_file:
migration.import_data(source_file, JsonSerializer, DirectPlan)
result_path = os.path.join(self.temp_dir, 'backup')
output = StringIO()
call_command(
'export_models',
'datamigrations_commands_tests.Category',
file=result_path,
format='json',
natural=True,
stdout=output,
)
with open(result_path, 'r') as result_file:
result = result_file.read()
self.assertEqual(1, result.count('Type: MODEL;'))
self.assertIn('Name: datamigrations_commands_tests.category;', result)
def test_blog_category_model(self):
migration = ModelMigration(BlogCategoryModel)
self.assertEqual(
[repr(fld) for fld in migration.fields],
['<yepes.contrib.datamigrations.fields.IntegerField: id>',
'<yepes.contrib.datamigrations.fields.IntegerField: blog (blog_id)>',
'<yepes.contrib.datamigrations.fields.TextField: name>',
'<yepes.contrib.datamigrations.fields.TextField: description>'],
)
self.assertEqual(migration.fields_to_export, migration.fields)
self.assertEqual(migration.fields_to_import, migration.fields)
self.assertEqual(
repr(migration.primary_key),
'<yepes.contrib.datamigrations.fields.IntegerField: id>',
)
self.assertIsNone(migration.natural_foreign_keys)
self.assertTrue(migration.can_create)
self.assertTrue(migration.can_export)
self.assertTrue(migration.can_import)
self.assertTrue(migration.can_update)
self.assertFalse(migration.requires_model_instances)
def from_file(cls, file, **options):
migration_kwargs, import_kwargs = cls._clean_options(options)
migration = ModelMigration(**migration_kwargs)
migration.import_data(file, **import_kwargs)
def to_file(cls, file, **options):
migration_kwargs, export_kwargs = cls._clean_options(options)
migration = ModelMigration(**migration_kwargs)
migration.export_data(file, **export_kwargs)
def test_filter_migration_fields(self):
migration = ModelMigration(BlogCategoryModel, fields=[
'pk',
'name',
'description',
], exclude=[
'pk',
])
self.assertEqual(
[repr(fld) for fld in migration.fields],
['<yepes.contrib.datamigrations.fields.TextField: name>',
'<yepes.contrib.datamigrations.fields.TextField: description>'],
)
self.assertEqual(migration.fields_to_export, migration.fields)
self.assertEqual(migration.fields_to_import, migration.fields)
self.assertIsNone(migration.primary_key)
self.assertIsNone(migration.natural_foreign_keys)
self.assertFalse(migration.can_create)
self.assertTrue(migration.can_export)
self.assertFalse(migration.can_import)
self.assertFalse(migration.can_update)
self.assertFalse(migration.requires_model_instances)
migration = ModelMigration(BlogCategoryModel, fields=[
'pk',
'name',
'blog__name',
])
self.assertEqual(
[repr(fld) for fld in migration.fields],
['<yepes.contrib.datamigrations.fields.IntegerField: id>',
'<yepes.contrib.datamigrations.fields.TextField: name>',
'<yepes.contrib.datamigrations.fields.TextField: blog__name (blog_id__name)>'],
)
self.assertEqual(migration.fields_to_export, migration.fields)
self.assertEqual(migration.fields_to_import, migration.fields)
self.assertEqual(
repr(migration.primary_key),
'<yepes.contrib.datamigrations.fields.IntegerField: id>',
)
self.assertEqual(
[repr(fld) for fld in migration.natural_foreign_keys],
['<yepes.contrib.datamigrations.fields.TextField: blog__name (blog_id__name)>'],
)
self.assertTrue(migration.can_create)
self.assertTrue(migration.can_export)
self.assertTrue(migration.can_import)
self.assertTrue(migration.can_update)
self.assertFalse(migration.requires_model_instances)
migration = ModelMigration(BlogCategoryModel, fields=[
'pk',
'name',
'description',
'blog__name',
'blog__description',
])
self.assertEqual(
[repr(fld) for fld in migration.fields],
['<yepes.contrib.datamigrations.fields.IntegerField: id>',
'<yepes.contrib.datamigrations.fields.TextField: name>',
'<yepes.contrib.datamigrations.fields.TextField: description>',
'<yepes.contrib.datamigrations.fields.TextField: blog__name (blog_id__name)>',
'<yepes.contrib.datamigrations.fields.TextField: blog__description (blog_id__description)>'],
)
self.assertEqual(migration.fields_to_export, migration.fields)
self.assertEqual(
[repr(fld) for fld in migration.fields_to_import],
['<yepes.contrib.datamigrations.fields.IntegerField: id>',
'<yepes.contrib.datamigrations.fields.TextField: name>',
'<yepes.contrib.datamigrations.fields.TextField: description>',
'<yepes.contrib.datamigrations.fields.TextField: blog__name (blog_id__name)>'],
)
self.assertEqual(
repr(migration.primary_key),
'<yepes.contrib.datamigrations.fields.IntegerField: id>',
)
self.assertEqual(
[repr(fld) for fld in migration.natural_foreign_keys],
['<yepes.contrib.datamigrations.fields.TextField: blog__name (blog_id__name)>'],
)
self.assertTrue(migration.can_create)
self.assertTrue(migration.can_export)
self.assertTrue(migration.can_import)
self.assertTrue(migration.can_update)
self.assertFalse(migration.requires_model_instances)
def test_file(self):
migration = ModelMigration(Author)
source_path = os.path.join(MIGRATIONS_DIR, 'author.json')
with open(source_path, 'r') as source_file:
migration.import_data(source_file, JsonSerializer, DirectPlan)
migration = ModelMigration(Category)
source_path = os.path.join(MIGRATIONS_DIR, 'category.json')
with open(source_path, 'r') as source_file:
migration.import_data(source_file, JsonSerializer, DirectPlan)
migration = ModelMigration(Tag)
source_path = os.path.join(MIGRATIONS_DIR, 'tag.json')
with open(source_path, 'r') as source_file:
migration.import_data(source_file, JsonSerializer, DirectPlan)
migration = ModelMigration(Post)
source_path = os.path.join(MIGRATIONS_DIR, 'post.json')
with open(source_path, 'r') as source_file:
migration.import_data(source_file, JsonSerializer, DirectPlan)
migration = ModelMigration(PostTags)
source_path = os.path.join(MIGRATIONS_DIR, 'post_tags.json')
with open(source_path, 'r') as source_file:
migration.import_data(source_file, JsonSerializer, DirectPlan)
source_path = os.path.join(MIGRATIONS_DIR, 'backup')
result_path = os.path.join(self.temp_dir, 'backup')
MultipleExportFacade.to_file_path(
result_path,
serializer='json',
use_natural_keys=True,
)
with open(source_path, 'r') as source_file:
source = source_file.read()
with open(result_path, 'r') as result_file:
result = result_file.read()
self.assertEqual(source.splitlines(), result.splitlines())
def test_file(self):
migration = ModelMigration(Author)
source_path = os.path.join(MIGRATIONS_DIR, 'author.json')
with open(source_path, 'r') as source_file:
migration.import_data(source_file, JsonSerializer, DirectPlan)
migration = ModelMigration(Category)
source_path = os.path.join(MIGRATIONS_DIR, 'category.json')
with open(source_path, 'r') as source_file:
migration.import_data(source_file, JsonSerializer, DirectPlan)
migration = ModelMigration(Tag)
source_path = os.path.join(MIGRATIONS_DIR, 'tag.json')
with open(source_path, 'r') as source_file:
migration.import_data(source_file, JsonSerializer, DirectPlan)
migration = ModelMigration(Post)
source_path = os.path.join(MIGRATIONS_DIR, 'post.json')
with open(source_path, 'r') as source_file:
migration.import_data(source_file, JsonSerializer, DirectPlan)
migration = ModelMigration(PostTags)
source_path = os.path.join(MIGRATIONS_DIR, 'post_tags.json')
with open(source_path, 'r') as source_file:
migration.import_data(source_file, JsonSerializer, DirectPlan)
source_path = os.path.join(MIGRATIONS_DIR, 'backup')
result_path = os.path.join(self.temp_dir, 'backup')
output = StringIO()
call_command(
'export_models',
file=result_path,
format='json',
natural=True,
stdout=output,
)
with open(source_path, 'r') as source_file:
source = source_file.read()
with open(result_path, 'r') as result_file:
result = result_file.read()
self.assertEqual(source.splitlines(), result.splitlines())
self.assertIn('Objects were successfully exported.', output.getvalue())
def test_file(self):
source_path = os.path.join(MIGRATIONS_DIR, 'backup')
MultipleImportFacade.from_file_path(
source_path,
use_natural_keys=True,
plan='direct',
)
source_path = os.path.join(MIGRATIONS_DIR, 'author.json')
with open(source_path, 'r') as source_file:
source = source_file.read()
migration = ModelMigration(Author)
result = migration.export_data(None, JsonSerializer)
self.assertEqual(source.splitlines(), result.splitlines())
source_path = os.path.join(MIGRATIONS_DIR, 'category.json')
with open(source_path, 'r') as source_file:
source = source_file.read()
migration = ModelMigration(Category)
result = migration.export_data(None, JsonSerializer)
self.assertEqual(source.splitlines(), result.splitlines())
source_path = os.path.join(MIGRATIONS_DIR, 'tag.json')
with open(source_path, 'r') as source_file:
source = source_file.read()
migration = ModelMigration(Tag)
result = migration.export_data(None, JsonSerializer)
self.assertEqual(source.splitlines(), result.splitlines())
source_path = os.path.join(MIGRATIONS_DIR, 'post.json')
with open(source_path, 'r') as source_file:
source = source_file.read()
migration = ModelMigration(Post)
result = migration.export_data(None, JsonSerializer)
self.assertEqual(source.splitlines(), result.splitlines())
source_path = os.path.join(MIGRATIONS_DIR, 'post_tags.json')
with open(source_path, 'r') as source_file:
source = source_file.read()
migration = ModelMigration(PostTags)
result = migration.export_data(None, JsonSerializer)
self.assertEqual(source.splitlines(), result.splitlines())