self.db_name = db_name
self.db = openerp.sql_db.db_connect(db_name)
+ # Inter-process signaling (used only when openerp.multi_process is True):
+ # The `base_registry_signaling` sequence indicates the whole registry
+ # must be reloaded.
+ # The `base_cache_signaling sequence` indicates all caches must be
+ # invalidated (i.e. cleared).
+ self.base_registry_signaling_sequence = 1
+ self.base_cache_signaling_sequence = 1
+
+ # Flag indicating if at least one model cache has been cleared.
+ # Useful only in a multi-process context.
+ self._any_cache_cleared = False
+
cr = self.db.cursor()
has_unaccent = openerp.modules.db.has_unaccent(cr)
if openerp.tools.config['unaccent'] and not has_unaccent:
"""
for model in self.models.itervalues():
model.clear_caches()
+ # Special case for ir_ui_menu which does not use openerp.tools.ormcache.
+ ir_ui_menu = self.models.get('ir.ui.menu')
+ if ir_ui_menu:
+ ir_ui_menu.clear_cache()
+
+
+ # Useful only in a multi-process context.
+ def reset_any_cache_cleared(self):
+ self._any_cache_cleared = False
+
+ # Useful only in a multi-process context.
+ def any_cache_cleared(self):
+ return self._any_cache_cleared
+
+ @classmethod
+ def setup_multi_process_signaling(cls, cr):
+ if not openerp.multi_process:
+ return
+
+ # Inter-process signaling:
+ # The `base_registry_signaling` sequence indicates the whole registry
+ # must be reloaded.
+ # The `base_cache_signaling sequence` indicates all caches must be
+ # invalidated (i.e. cleared).
+ cr.execute("""SELECT sequence_name FROM information_schema.sequences WHERE sequence_name='base_registry_signaling'""")
+ if not cr.fetchall():
+ cr.execute("""CREATE SEQUENCE base_registry_signaling INCREMENT BY 1 START WITH 1""")
+ cr.execute("""SELECT nextval('base_registry_signaling')""")
+ cr.execute("""CREATE SEQUENCE base_cache_signaling INCREMENT BY 1 START WITH 1""")
+ cr.execute("""SELECT nextval('base_cache_signaling')""")
@contextmanager
def cursor(self, auto_commit=True):
cr = registry.db.cursor()
try:
+ Registry.setup_multi_process_signaling(cr)
registry.do_parent_store(cr)
registry.get('ir.actions.report.xml').register_all(cr)
cr.commit()
if db_name in cls.registries:
cls.registries[db_name].clear_caches()
+ @classmethod
+ def check_registry_signaling(cls, db_name):
+ if openerp.multi_process and db_name in cls.registries:
+ registry = cls.get(db_name, pooljobs=False)
+ cr = registry.db.cursor()
+ try:
+ cr.execute("""
+ SELECT base_registry_signaling.last_value,
+ base_cache_signaling.last_value
+ FROM base_registry_signaling, base_cache_signaling""")
+ r, c = cr.fetchone()
+ # Check if the model registry must be reloaded (e.g. after the
+ # database has been updated by another process).
+ if registry.base_registry_signaling_sequence != r:
+ _logger.info("Reloading the model registry after database signaling.")
+ # Don't run the cron in the Gunicorn worker.
+ registry = cls.new(db_name, pooljobs=False)
+ registry.base_registry_signaling_sequence = r
+ # Check if the model caches must be invalidated (e.g. after a write
+ # occured on another process). Don't clear right after a registry
+ # has been reload.
+ elif registry.base_cache_signaling_sequence != c:
+ _logger.info("Invalidating all model caches after database signaling.")
+ registry.base_cache_signaling_sequence = c
+ registry.clear_caches()
+ registry.reset_any_cache_cleared()
+ # One possible reason caches have been invalidated is the
+ # use of decimal_precision.write(), in which case we need
+ # to refresh fields.float columns.
+ for model in registry.models.values():
+ for column in model._columns.values():
+ if hasattr(column, 'digits_change'):
+ column.digits_change(cr)
+ finally:
+ cr.close()
+
+ @classmethod
+ def signal_caches_change(cls, db_name):
+ if openerp.multi_process and db_name in cls.registries:
+ # Check the registries if any cache has been cleared and signal it
+ # through the database to other processes.
+ registry = cls.get(db_name, pooljobs=False)
+ if registry.any_cache_cleared():
+ _logger.info("At least one model cache has been cleared, signaling through the database.")
+ cr = registry.db.cursor()
+ r = 1
+ try:
+ cr.execute("select nextval('base_cache_signaling')")
+ r = cr.fetchone()[0]
+ finally:
+ cr.close()
+ registry.base_cache_signaling_sequence = r
+ registry.reset_any_cache_cleared()
+
+ @classmethod
+ def signal_registry_change(cls, db_name):
+ if openerp.multi_process and db_name in cls.registries:
+ registry = cls.get(db_name, pooljobs=False)
+ cr = registry.db.cursor()
+ r = 1
+ try:
+ cr.execute("select nextval('base_registry_signaling')")
+ r = cr.fetchone()[0]
+ finally:
+ cr.close()
+ registry.base_registry_signaling_sequence = r
# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
raise NameError("Method not available %s" % method)
security.check(db,uid,passwd)
assert openerp.osv.osv.service, "The object_proxy class must be started with start_object_proxy."
+ openerp.modules.registry.RegistryManager.check_registry_signaling(db)
fn = getattr(openerp.osv.osv.service, method)
res = fn(db, uid, *params)
+ openerp.modules.registry.RegistryManager.signal_caches_change(db)
return res
if method not in ['report', 'report_get', 'render_report']:
raise KeyError("Method not supported %s" % method)
security.check(db,uid,passwd)
+ openerp.modules.registry.RegistryManager.check_registry_signaling(db)
fn = getattr(self, 'exp_' + method)
res = fn(db, uid, *params)
+ openerp.modules.registry.RegistryManager.signal_caches_change(db)
return res
def exp_render_report(self, db, uid, object, ids, datas=None, context=None):
projects / odoo / odoo.git / commitdiff