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from importlib import import_module
import django
from django.apps import apps
from django.core.exceptions import ImproperlyConfigured
if django.VERSION >= (1, 10): # pragma: no cover
from django.urls import reverse, NoReverseMatch
else:
from django.core.urlresolvers import reverse, NoReverseMatch
def get_callable(func_or_path):
"""
Receives a dotted path or a callable, Returns a callable or None
"""
if callable(func_or_path):
return func_or_path
module_name = '.'.join(func_or_path.split('.')[:-1])
function_name = func_or_path.split('.')[-1]
_module = import_module(module_name)
func = getattr(_module, function_name)
return func
def clean_app_config(app_path):
"""
Removes the AppConfig path for this app and returns the new string
"""
apps_names = [app.name for app in apps.get_app_configs()]
if app_path in apps_names:
return app_path
else:
app_split = app_path.split('.')
new_app = '.'.join(app_split[:-2])
if new_app in apps_names:
return new_app
else: # pragma: no cover
raise ImproperlyConfigured(
"The application {0} is not in the configured apps or does".format(app_path) +
"not have the pattern app.apps.AppConfig"
)
def parse_url(url):
"""
Returns concrete URL for a menu dict URL attribute.
"""
try:
final_url = reverse(**url) if type(url) is dict else reverse(url)
except NoReverseMatch:
final_url = url
return final_url
def path_startswith(path, prefix):
"""
Returns True if the leftmost path components are the same as prefix.
"""
path_components = path.strip("/").split("/")
prefix_components = prefix.strip("/").split("/")
return path_components[:len(prefix_components)] == prefix_components
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