Sha256: cbb46bd0626c46d6611b1fa485dba1c6d0dcc50aa26466661c759e19bd82d7a2
Contents?: true
Size: 1022 Bytes
Versions: 90
Compression:
Stored size: 1022 Bytes
Contents
require 'active_support/notifications'
require 'active_record/explain_registry'
module ActiveRecord
class ExplainSubscriber # :nodoc:
def start(name, id, payload)
# unused
end
def finish(name, id, payload)
if ExplainRegistry.collect? && !ignore_payload?(payload)
ExplainRegistry.queries << payload.values_at(:sql, :binds)
end
end
# SCHEMA queries cannot be EXPLAINed, also we do not want to run EXPLAIN on
# our own EXPLAINs now matter how loopingly beautiful that would be.
#
# On the other hand, we want to monitor the performance of our real database
# queries, not the performance of the access to the query cache.
IGNORED_PAYLOADS = %w(SCHEMA EXPLAIN CACHE)
EXPLAINED_SQLS = /\A\s*(select|update|delete|insert)\b/i
def ignore_payload?(payload)
payload[:exception] || IGNORED_PAYLOADS.include?(payload[:name]) || payload[:sql] !~ EXPLAINED_SQLS
end
ActiveSupport::Notifications.subscribe("sql.active_record", new)
end
end
Version data entries
90 entries across 89 versions & 6 rubygems