def _register_crud_event_listener(self, event: ff.TypeOfEvent,
command: str, context: ff.Context):
class DoInvokeOn(ff.InvokeOn):
pass
self._event_resolving_middleware.add_event_listener(
self._container.build(DoInvokeOn, command_name=command), event)
if DoInvokeOn not in context.event_listeners:
context.event_listeners[DoInvokeOn] = []
context.event_listeners[DoInvokeOn].append(event)
def _create_query_handler(self, entity: Type[Entity], context: ff.Context):
query_name = inflection.pluralize(entity.__name__)
class Query(ff.QueryService[entity]):
pass
Query.__name__ = query_name
fqn = f'{context.name}.{query_name}'
self._query_resolving_middleware.add_query_handler(
self._container.build(Query), fqn)
context.query_handlers[Query] = fqn
def _create_crud_command_handler(self, context: ff.Context, entity,
name_prefix):
name = f'{name_prefix}Entity'
base = getattr(ff, name)
class Action(base[entity]):
pass
name = f'{name_prefix}{entity.__name__}'
fqn = f'{context.name}.{name}'
if not self._command_resolving_middleware.has_command_handler(fqn):
Action.__name__ = name
self._command_resolving_middleware.add_command_handler(
self._container.build(Action), fqn)
context.command_handlers[Action] = fqn
def _create_invoke_command_handler(self, entity: Type[Entity],
context: ff.Context, method_name: str):
command_name = f'{entity.__name__}::{inflection.camelize(method_name)}'
class Invoke(InvokeCommand[entity]):
pass
Invoke.__name__ = f'Invoke{command_name}'
fqn = f'{context.name}.{command_name}'
self._command_resolving_middleware.add_command_handler(
self._container.build(Invoke, method=method_name), fqn)
context.command_handlers[Invoke] = fqn
return fqn