Class | Sequel::Postgres::Adapter |
In: |
lib/sequel/adapters/postgres.rb
|
Parent: | ::PGconn |
PGconn subclass for connection specific methods used with the pg, postgres, or postgres-pr driver.
Apply connection settings for this connection. Current sets the date style to ISO in order make Date object creation in ruby faster, if Postgres.use_iso_date_format is true.
# File lib/sequel/adapters/postgres.rb, line 132 132: def apply_connection_settings 133: super 134: if Postgres.use_iso_date_format 135: sql = "SET DateStyle = 'ISO'" 136: execute(sql) 137: end 138: @prepared_statements = {} if SEQUEL_POSTGRES_USES_PG 139: end
Raise a Sequel::DatabaseDisconnectError if a PGError is raised and the connection status cannot be determined or it is not OK.
# File lib/sequel/adapters/postgres.rb, line 143 143: def check_disconnect_errors 144: begin 145: yield 146: rescue PGError =>e 147: begin 148: s = status 149: rescue PGError 150: raise Sequel.convert_exception_class(e, Sequel::DatabaseDisconnectError) 151: end 152: status_ok = (s == Adapter::CONNECTION_OK) 153: status_ok ? raise : raise(Sequel.convert_exception_class(e, Sequel::DatabaseDisconnectError)) 154: ensure 155: block if status_ok 156: end 157: end
Execute the given SQL with this connection. If a block is given, yield the results, otherwise, return the number of changed rows.
# File lib/sequel/adapters/postgres.rb, line 161 161: def execute(sql, args=nil) 162: q = check_disconnect_errors{@db.log_yield(sql, args){args ? async_exec(sql, args) : async_exec(sql)}} 163: begin 164: block_given? ? yield(q) : q.cmd_tuples 165: ensure 166: q.clear 167: end 168: end