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Helper for calling PostgreSQL functions: pg_advisory_lock, pg_advisory_try_lock, and pg_advisory_unlock.
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dembskoi/pg_advisory_locker
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pg_advisory_locker ================== Helper for calling PostgreSQL functions: pg_advisory_lock, pg_advisory_try_lock, and pg_advisory_unlock. Examples ======== Basic example of passing a block to the locker class Foo < ActiveRecord::Base include PgAdvisoryLocker def self.lock_for_whatever(&block) return lock_record(0, &block) end def self.do_something lock_for_whatever do # do something here end end end Advisory lock on id: class Foo < ActiveRecord::Base include PgAdvisoryLocker def lock_for_whatever return advisory_lock end def unlock_for_whatever return advisory_unlock end def do_something lock_for_whatever begin # do something ensure unlock_for_whatever end end end
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Helper for calling PostgreSQL functions: pg_advisory_lock, pg_advisory_try_lock, and pg_advisory_unlock.
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