Source code for camelot.view.action_steps.orm

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"""
Various ``ActionStep`` subclasses that inform the GUI of changes
in the model.
"""

from camelot.admin.action.base import ActionStep
from camelot.view.remote_signals import get_signal_handler

[docs]class FlushSession( ActionStep ): """Flushes the session and informs the GUI about the changes. :param session: an instance of :class:`sqlalchemy.orm.Session` """ def __init__( self, session ): # # @todo : deleting of objects should be moved from the collection_proxy # to here, once deleting rows is reimplemented as an action # # @todo : handle the creation of new objects # signal_handler = get_signal_handler() dirty_objects = list( session.dirty ) session.flush() for obj in dirty_objects: signal_handler.sendEntityUpdate( self, obj )
[docs] def gui_run( self, gui_context ): pass
[docs]class UpdateObject( ActionStep ): """Inform the GUI that obj has changed. :param obj: the object that has changed """ def __init__( self, obj ): signal_handler = get_signal_handler() if obj != None: signal_handler.sendEntityUpdate( self, obj )
[docs] def gui_run( self, gui_context ): pass
[docs]class DeleteObject( ActionStep ): """Inform the GUI that obj is going to be deleted. :param obj: the object that is going to be deleted """ def __init__( self, obj ): signal_handler = get_signal_handler() if obj != None: signal_handler.sendEntityDelete( self, obj )
[docs] def gui_run( self, gui_context ): pass
[docs]class CreateObject( ActionStep ): """Inform the GUI that obj was created. :param obj: the object that was created """ def __init__( self, obj ): signal_handler = get_signal_handler() if obj != None: signal_handler.sendEntityCreate( self, obj )
[docs] def gui_run( self, gui_context ): pass

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