hooks/storages.py
author Sylvain Thénault <sylvain.thenault@logilab.fr>
Tue, 26 Jan 2010 13:32:54 +0100
changeset 4364 766359c69f2f
parent 4322 f65743cc53e4
child 4716 55b6a3262071
permissions -rw-r--r--
[uicfg] fix autoform_section rtags initialization 1. when a relation is marked as inlined in the 'main' form type, we want its opposite (eg when one the other side of the relation) to be marked as hidden in the 'inlined' form type 2. when no section is specified for the 'inlined' form type, use the same as in the 'main' form type to do this properly, we need two initialization stages. The first one to handle 1., the second to handle what was done before and 2. We can't do this in a single stage because we've to know the bare value of the "opposite" tag.

"""hooks to handle attributes mapped to a custom storage
"""
from os import unlink

from cubicweb.server.hook import Hook
from cubicweb.server.sources.storages import ETYPE_ATTR_STORAGE


class BFSSHook(Hook):
    """abstract class for bytes file-system storage hooks"""
    __abstract__ = True
    category = 'bfss'


class PreAddEntityHook(BFSSHook):
    """"""
    __regid__ = 'bfss_add_entity'
    events = ('before_add_entity', )
    #__select__ = Hook.__select__ & implements('Repository')

    def __call__(self):
        for attr in ETYPE_ATTR_STORAGE.get(self.entity.__regid__, ()):
            fpath = ETYPE_ATTR_STORAGE[self.entity.__regid__][attr].entity_added(self.entity, attr)
            if fpath is not None:
                AddFileOp(filepath=fpath)

class PreUpdateEntityHook(BFSSHook):
    """"""
    __regid__ = 'bfss_update_entity'
    events = ('before_update_entity', )
    #__select__ = Hook.__select__ & implements('Repository')

    def __call__(self):
        for attr in ETYPE_ATTR_STORAGE.get(self.entity.__regid__, ()):
            ETYPE_ATTR_STORAGE[self.entity.__regid__][attr].entity_updated(self.entity, attr)

class PreDeleteEntityHook(BFSSHook):
    """"""
    __regid__ = 'bfss_delete_entity'
    events = ('before_delete_entity', )
    #__select__ = Hook.__select__ & implements('Repository')

    def __call__(self):
        for attr in ETYPE_ATTR_STORAGE.get(self.entity.__regid__, ()):
            ETYPE_ATTR_STORAGE[self.entity.__regid__][attr].entity_deleted(self.entity, attr)