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"""
Module that contains wrappers and shortcuts.
This is the facade of all features of DDF.
"""
import os
import sys
import warnings
from django.conf import settings
from django.urls import get_mod_func
try:
from importlib import import_module
except ImportError:
from django.utils.importlib import import_module
from django_dynamic_fixture.fixture_algorithms.sequential_fixture import SequentialDataFixture, StaticSequentialDataFixture, GlobalSequentialDataFixture
from django_dynamic_fixture.fixture_algorithms.random_fixture import RandomDataFixture
class DDFImproperlyConfigured(Exception):
"DDF is improperly configured. Some global settings has bad value in django settings."
def get_ddf_config(name, default, cast=None, options=None, msg=''):
try:
value = os.getenv(name) # Priority for Env variables
if not value:
value = getattr(settings, name) if hasattr(settings, name) else default
value = cast(value) if cast else value
if options and value not in options:
# to educate users to use the property correctly.
raise DDFImproperlyConfigured()
return value
except Exception as e:
raise DDFImproperlyConfigured(f'{name}="{value}": {msg} ({e})')
def get_boolean_config(config_name, default=False):
return get_ddf_config(config_name, default, options=[True, False], msg='it must be True or False')
def get_data_fixture(default='sequential'):
# It must be 'sequential', 'static_sequential', 'global_sequential', 'random' or 'path.to.CustomDataFixtureClass'
try:
INTERNAL_DATA_FIXTURES = {'sequential': SequentialDataFixture(),
'static_sequential': StaticSequentialDataFixture(),
'global_sequential': GlobalSequentialDataFixture(),
'random': RandomDataFixture()}
if hasattr(settings, 'DDF_DEFAULT_DATA_FIXTURE'):
if settings.DDF_DEFAULT_DATA_FIXTURE in INTERNAL_DATA_FIXTURES.keys():
return INTERNAL_DATA_FIXTURES[settings.DDF_DEFAULT_DATA_FIXTURE]
else:
# path.to.CustomDataFixtureClass
mod_name, obj_name = get_mod_func(settings.DDF_DEFAULT_DATA_FIXTURE)
module = import_module(mod_name)
custom_data_fixture = getattr(module, obj_name)
return custom_data_fixture()
else:
return INTERNAL_DATA_FIXTURES[default]
except:
raise DDFImproperlyConfigured(
f"DDF_DEFAULT_DATA_FIXTURE ({settings.DDF_DEFAULT_DATA_FIXTURE}) must be "
"'sequential', 'static_sequential', 'global_sequential', 'random' or 'path.to.CustomDataFixtureClass'."
)
DDF_DEFAULT_DATA_FIXTURE = get_data_fixture(default='sequential')
DDF_IGNORE_FIELDS = get_ddf_config('DDF_IGNORE_FIELDS', default=[], cast=list, msg='it must be a list of strings')
DDF_FK_MIN_DEPTH = get_ddf_config('DDF_FK_MIN_DEPTH', default=0, cast=int, msg='it must be a integer number')
if hasattr(settings, 'DDF_NUMBER_OF_LAPS'):
warnings.warn(
"The old DDF_NUMBER_OF_LAPS settings was replaced by the new DDF_FK_MIN_DEPTH.",
DeprecationWarning
)
DDF_FIELD_FIXTURES = get_ddf_config('DDF_FIELD_FIXTURES', default={}, cast=dict, msg='it must be a dict')
DDF_DEFAULT_DATA_FIXTURE.plugins = DDF_FIELD_FIXTURES
DDF_FILL_NULLABLE_FIELDS = get_boolean_config('DDF_FILL_NULLABLE_FIELDS', default=False)
DDF_VALIDATE_MODELS = get_boolean_config('DDF_VALIDATE_MODELS', default=False)
DDF_DEBUG_MODE = get_boolean_config('DDF_DEBUG_MODE', default=False)
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