def powerupsFor(self, interface):
"""
Returns powerups installed using C{powerUp}, in order of descending
priority.
Powerups found to have been deleted, either during the course of this
powerupsFor iteration, during an upgrader, or previously, will not be
returned.
"""
inMemoryPowerup = self._inMemoryPowerups.get(interface, None)
if inMemoryPowerup is not None:
yield inMemoryPowerup
name = unicode(qual(interface), 'ascii')
for cable in self.store.query(
_PowerupConnector,
AND(_PowerupConnector.interface == name,
_PowerupConnector.item == self),
sort=_PowerupConnector.priority.descending):
pup = cable.powerup
if pup is None:
# this powerup was probably deleted during an upgrader.
cable.deleteFromStore()
else:
indirector = IPowerupIndirector(pup, None)
if indirector is not None:
yield indirector.indirect(interface)
else:
yield pup
def powerupsFor(self, interface):
"""
Returns powerups installed using C{powerUp}, in order of descending
priority.
Powerups found to have been deleted, either during the course of this
powerupsFor iteration, during an upgrader, or previously, will not be
returned.
"""
inMemoryPowerup = self._inMemoryPowerups.get(interface, None)
if inMemoryPowerup is not None:
yield inMemoryPowerup
name = unicode(qual(interface), 'ascii')
for cable in self.store.query(
_PowerupConnector,
AND(_PowerupConnector.interface == name,
_PowerupConnector.item == self),
sort=_PowerupConnector.priority.descending):
pup = cable.powerup
if pup is None:
# this powerup was probably deleted during an upgrader.
cable.deleteFromStore()
else:
indirector = IPowerupIndirector(pup, None)
if indirector is not None:
yield indirector.indirect(interface)
else:
yield pup
def powerupsFor(self, interface, tables=(), comparison=None):
"""
Returns powerups installed using C{powerUp}, in order of descending
priority.
Powerups found to have been deleted, either during the course of this
powerupsFor iteration, during an upgrader, or previously, will not be
returned.
"""
inMemoryPowerup = self._inMemoryPowerups.get(interface, [])
for pup in inMemoryPowerup:
yield pup
if self.store is None:
return
name = qual(interface)
tables = (_PowerupConnector, ) + tables
if comparison:
comparison = AND(_PowerupConnector.interface == name,
_PowerupConnector.item == self,
_PowerupConnector.powerup == tables[1].storeID,
comparison)
else:
comparison = AND(
_PowerupConnector.interface == name,
_PowerupConnector.item == self,
)
q = self.store.query(
tables, comparison,
sort=_PowerupConnector.priority.descending).distinct()
for entries in q:
cable = entries[0]
pup = cable.powerup
if pup is None:
# this powerup was probably deleted during an upgrader.
cable.deleteFromStore()
else:
indirector = IPowerupIndirector(pup, None)
if indirector is not None:
yield indirector.indirect(interface)
else:
yield pup
def powerupsFor(self, interface, tables=(), comparison=None):
"""
Returns powerups installed using C{powerUp}, in order of descending
priority.
Powerups found to have been deleted, either during the course of this
powerupsFor iteration, during an upgrader, or previously, will not be
returned.
"""
inMemoryPowerup = self._inMemoryPowerups.get(interface, [])
for pup in inMemoryPowerup:
yield pup
if self.store is None:
return
name = qual(interface)
tables = (_PowerupConnector,) + tables
if comparison:
comparison = AND(
_PowerupConnector.interface == name,
_PowerupConnector.item == self,
_PowerupConnector.powerup == tables[1].storeID,
comparison,
)
else:
comparison = AND(_PowerupConnector.interface == name, _PowerupConnector.item == self)
q = self.store.query(tables, comparison, sort=_PowerupConnector.priority.descending).distinct()
for entries in q:
cable = entries[0]
pup = cable.powerup
if pup is None:
# this powerup was probably deleted during an upgrader.
cable.deleteFromStore()
else:
indirector = IPowerupIndirector(pup, None)
if indirector is not None:
yield indirector.indirect(interface)
else:
yield pup