Class: Sequel::Postgres::Database
- Includes:
- DatabaseMethods
- Defined in:
- lib/sequel_core/adapters/postgres.rb
Overview
Database class for PostgreSQL databases used with Sequel and the pg, postgres, or postgres-pr driver.
Constant Summary
Constants included from DatabaseMethods
Sequel::Postgres::DatabaseMethods::PREPARED_ARG_PLACEHOLDER, Sequel::Postgres::DatabaseMethods::RELATION_FILTER, Sequel::Postgres::DatabaseMethods::RELATION_QUERY, Sequel::Postgres::DatabaseMethods::RE_CURRVAL_ERROR, Sequel::Postgres::DatabaseMethods::SQL_BEGIN, Sequel::Postgres::DatabaseMethods::SQL_COMMIT, Sequel::Postgres::DatabaseMethods::SQL_RELEASE_SAVEPOINT, Sequel::Postgres::DatabaseMethods::SQL_ROLLBACK, Sequel::Postgres::DatabaseMethods::SQL_ROLLBACK_TO_SAVEPOINT, Sequel::Postgres::DatabaseMethods::SQL_SAVEPOINT, Sequel::Postgres::DatabaseMethods::SYSTEM_TABLE_REGEXP
Constants inherited from Database
Database::ADAPTERS, Database::SQL_BEGIN, Database::SQL_COMMIT, Database::SQL_ROLLBACK
Constants included from Schema::SQL
Schema::SQL::AUTOINCREMENT, Schema::SQL::CASCADE, Schema::SQL::COMMA_SEPARATOR, Schema::SQL::NOT_NULL, Schema::SQL::NO_ACTION, Schema::SQL::NULL, Schema::SQL::PRIMARY_KEY, Schema::SQL::RESTRICT, Schema::SQL::SET_DEFAULT, Schema::SQL::SET_NULL, Schema::SQL::TYPES, Schema::SQL::UNDERSCORE, Schema::SQL::UNIQUE, Schema::SQL::UNSIGNED
Instance Attribute Summary
Attributes inherited from Database
#loggers, #opts, #pool, #prepared_statements, #quote_identifiers
Instance Method Summary collapse
-
#connect(server) ⇒ Object
Connects to the database.
-
#dataset(opts = nil) ⇒ Object
Return instance of Sequel::Postgres::Dataset with the given options.
-
#disconnect ⇒ Object
Disconnect all active connections.
-
#execute(sql, opts = {}, &block) ⇒ Object
Execute the given SQL with the given args on an available connection.
-
#execute_insert(sql, opts = {}) ⇒ Object
Insert the values into the table and return the primary key (if automatically generated).
Methods included from DatabaseMethods
#drop_table_sql, #index_definition_sql, #insert_result, #locks, #primary_key_for_table, #serial_primary_key_options, #server_version, #tables, #transaction
Methods inherited from Database
#<<, #[], adapter_class, adapter_scheme, #add_column, #add_index, #alter_table, #call, connect, #create_or_replace_view, #create_table, #create_table!, #create_view, #drop_column, #drop_index, #drop_table, #drop_view, #execute_ddl, #execute_dui, #fetch, #from, #get, #initialize, #inspect, #log_info, #logger, #logger=, #multi_threaded?, #query, quote_identifiers=, #quote_identifiers?, #rename_column, #rename_table, #select, #serial_primary_key_options, #set_column_default, #set_column_type, single_threaded=, #single_threaded?, #synchronize, #table_exists?, #test_connection, #transaction, #typecast_value, #uri
Methods included from Schema::SQL
#alter_table_sql, #alter_table_sql_list, #auto_increment_sql, #column_definition_sql, #column_list_sql, #constraint_definition_sql, #create_table_sql_list, #default_index_name, #drop_table_sql, #filter_expr, #index_definition_sql, #index_list_sql_list, #literal, #on_delete_clause, #quote_identifier, #rename_table_sql, #schema, #schema_utility_dataset, #type_literal
Constructor Details
This class inherits a constructor from Sequel::Database
Instance Method Details
#connect(server) ⇒ Object
Connects to the database. In addition to the standard database options, using the :encoding or :charset option changes the client encoding for the connection.
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# File 'lib/sequel_core/adapters/postgres.rb', line 168 def connect(server) opts = server_opts(server) conn = Adapter.connect( opts[:host] || 'localhost', opts[:port] || 5432, '', '', opts[:database], opts[:user], opts[:password] ) if encoding = opts[:encoding] || opts[:charset] conn.set_client_encoding(encoding) end conn end |
#dataset(opts = nil) ⇒ Object
Return instance of Sequel::Postgres::Dataset with the given options.
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# File 'lib/sequel_core/adapters/postgres.rb', line 185 def dataset(opts = nil) Postgres::Dataset.new(self, opts) end |
#disconnect ⇒ Object
Disconnect all active connections.
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# File 'lib/sequel_core/adapters/postgres.rb', line 190 def disconnect @pool.disconnect {|c| c.finish} end |
#execute(sql, opts = {}, &block) ⇒ Object
Execute the given SQL with the given args on an available connection.
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# File 'lib/sequel_core/adapters/postgres.rb', line 195 def execute(sql, opts={}, &block) return execute_prepared_statement(sql, opts, &block) if Symbol === sql begin log_info(sql, opts[:arguments]) synchronize(opts[:server]){|conn| conn.execute(sql, opts[:arguments], &block)} rescue => e log_info(e.) raise convert_pgerror(e) end end |
#execute_insert(sql, opts = {}) ⇒ Object
Insert the values into the table and return the primary key (if automatically generated).
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# File 'lib/sequel_core/adapters/postgres.rb', line 208 def execute_insert(sql, opts={}) return execute(sql, opts) if Symbol === sql begin log_info(sql, opts[:arguments]) synchronize(opts[:server]) do |conn| conn.execute(sql, opts[:arguments]) insert_result(conn, opts[:table], opts[:values]) end rescue => e log_info(e.) raise convert_pgerror(e) end end |