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Viewing changes to lib/lp/services/database/sqlbase.py

  • Committer: Stuart Bishop
  • Date: 2012-01-04 08:32:16 UTC
  • mfrom: (8758.3.28 garbo)
  • mto: This revision was merged to the branch mainline in revision 14630.
  • Revision ID: stuart.bishop@canonical.com-20120104083216-u40lz91ftkpzsqqp
Merged garbo into garbo-bulk-pruner.

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lib/lp/services/database/sqlbase.py
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from zope.interface import implements
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from zope.security.proxy import removeSecurityProxy
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from canonical.config import dbconfig
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from canonical.database.interfaces import ISQLBase
 
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from lp.services.config import dbconfig
 
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from lp.services.database.interfaces import ISQLBase
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from lp.services.propertycache import clear_property_cache
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# Default we want for scripts, and the PostgreSQL default. Note psycopg1 will
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    """Return the store used by the SQLObject compatibility layer."""
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    # XXX: Stuart Bishop 20080725 bug=253542: The import is here to work
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    # around a particularly convoluted circular import.
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    from canonical.launchpad.webapp.interfaces import (
 
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    from lp.services.webapp.interfaces import (
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            IStoreSelector, MAIN_STORE, DEFAULT_FLAVOR)
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    return getUtility(IStoreSelector).get(MAIN_STORE, DEFAULT_FLAVOR)
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        We refetch any parameters from different stores from the
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        correct master Store.
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        """
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        from canonical.launchpad.interfaces.lpstorm import IMasterStore
 
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        from lp.services.database.lpstorm import IMasterStore
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        # Make it simple to write dumb-invalidators - initialized
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        # _cached_properties to a valid list rather than just-in-time
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        # creation.
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    @classmethod
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    def _get_store(cls):
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        from canonical.launchpad.interfaces.lpstorm import IStore
 
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        from lp.services.database.lpstorm import IStore
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        return IStore(cls)
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    def __repr__(self):
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        return '<%s at 0x%x>' % (self.__class__.__name__, id(self))
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    def destroySelf(self):
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        from canonical.launchpad.interfaces.lpstorm import IMasterObject
 
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        from lp.services.database.lpstorm import IMasterObject
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        my_master = IMasterObject(self)
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        if self is my_master:
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            super(SQLBase, self).destroySelf()
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    """A decorator that blocks implicit flushes on the main store."""
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    def block_implicit_flushes_decorator(*args, **kwargs):
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        from canonical.launchpad.webapp.interfaces import DisallowedStore
 
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        from lp.services.webapp.interfaces import DisallowedStore
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        try:
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            store = _get_sqlobject_store()
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        except DisallowedStore:
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    """
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    # We must connect to the read-write DB here, so we use rw_main_master
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    # directly.
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    from canonical.database.postgresql import ConnectionString
 
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    from lp.services.database.postgresql import ConnectionString
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    con_str = ConnectionString(dbconfig.rw_main_master)
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    if user is not None:
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        con_str.user = user