[schema / sources] store data sources as cubicweb entities
this implies several changes:
* new CWSource / CWSourceHostConfig entity types
* only the system sources and default admin login/password stored in sources file
(other stuff will be ignored)
* on startup, get sources definition from the database
* every entities have a cw_source relation
* a facet allow filtering
from cubicweb import ValidationError
from cubicweb.selectors import is_instance
from cubicweb.server import hook
class SourceHook(hook.Hook):
__abstract__ = True
category = 'cw.sources'
class SourceAddedOp(hook.Operation):
def precommit_event(self):
self.session.repo.add_source(self.entity)
class SourceAddedHook(SourceHook):
__regid__ = 'cw.sources.added'
__select__ = SourceHook.__select__ & is_instance('CWSource')
events = ('after_add_entity',)
def __call__(self):
SourceAddedOp(self._cw, entity=self.entity)
class SourceRemovedOp(hook.Operation):
def precommit_event(self):
self.session.repo.remove_source(self.uri)
class SourceRemovedHook(SourceHook):
__regid__ = 'cw.sources.removed'
__select__ = SourceHook.__select__ & is_instance('CWSource')
events = ('before_delete_entity',)
def __call__(self):
if self.entity.name == 'system':
raise ValidationError(self.entity.eid, {None: 'cant remove system source'})
SourceRemovedOp(self._cw, uri=self.entity.name)