def load_plugins(self):
"""
Enable plugins and set "loaded" attribute. This method is threadsafe, in the
sense that every caller will see the same state upon return, and if the
cache is already initialised, it does no work.
"""
if self.loaded:
return
self.write_lock.acquire()
try:
if self.loaded:
return
from merengue.registry import invalidate_registereditem
from merengue.pluggable.utils import (enable_plugin,
get_plugin_module_name,
reload_models_cache)
from merengue.pluggable.models import RegisteredPlugin
# enable active plugins
active_plugins = RegisteredPlugin.objects.actives()
plugin_names = [get_plugin_module_name(p.directory_name)
for p in active_plugins]
for plugin_name in plugin_names:
enable_plugin(plugin_name, register=True)
# invalidate any existing cache
invalidate_registereditem()
# reload models cache. needed because new plugins could bring new models
reload_models_cache()
self.loaded = True
finally:
self.write_lock.release()
def save_plugin_signal(sender, instance, **kwargs):
from merengue.pluggable.utils import (get_plugin_module_name,
enable_plugin, disable_plugin)
app_name = get_plugin_module_name(instance.directory_name)
if not getattr(instance, 'id', None) and getattr(instance, 'pk', None):
instance = instance._default_manager.get(pk=instance.pk)
if instance.installed and instance.active and instance.directory_name and not instance.broken:
enable_plugin(app_name)
elif not instance.active and instance.directory_name and instance.config:
try:
disable_plugin(app_name)
except ImportError:
if instance.broken:
pass # the plugin is broken
else:
raise
def save_plugin_signal(sender, instance, **kwargs):
from merengue.pluggable.utils import (get_plugin_module_name,
enable_plugin,
disable_plugin)
app_name = get_plugin_module_name(instance.directory_name)
if not getattr(instance, 'id', None) and getattr(instance, 'pk', None):
instance = instance._default_manager.get(pk=instance.pk)
if instance.installed and instance.active and instance.directory_name and not instance.broken:
enable_plugin(app_name)
elif not instance.active and instance.directory_name and instance.config:
try:
disable_plugin(app_name)
except ImportError:
if instance.broken:
pass # the plugin is broken
else:
raise
