Class: Sequel::Swift::Database

Inherits:
Database show all
Defined in:
lib/sequel/adapters/swift.rb

Constant Summary collapse

DatasetClass = 
self

Constants inherited from Database

Database::ADAPTERS, Database::AUTOINCREMENT, Database::COLUMN_DEFINITION_ORDER, Database::COMMA_SEPARATOR, Database::DEFAULT_JOIN_TABLE_COLUMN_OPTIONS, Database::MSSQL_DEFAULT_RE, Database::MYSQL_TIMESTAMP_RE, Database::NOT_NULL, Database::NULL, Database::POSTGRES_DEFAULT_RE, Database::PRIMARY_KEY, Database::SQL_BEGIN, Database::SQL_COMMIT, Database::SQL_RELEASE_SAVEPOINT, Database::SQL_ROLLBACK, Database::SQL_ROLLBACK_TO_SAVEPOINT, Database::SQL_SAVEPOINT, Database::STRING_DEFAULT_RE, Database::TEMPORARY, Database::TRANSACTION_BEGIN, Database::TRANSACTION_COMMIT, Database::TRANSACTION_ISOLATION_LEVELS, Database::TRANSACTION_ROLLBACK, Database::UNDERSCORE, Database::UNIQUE, Database::UNSIGNED

Instance Attribute Summary collapse

Attributes inherited from Database

#cache_schema, #dataset_class, #default_schema, #log_warn_duration, #loggers, #opts, #pool, #prepared_statements, #sql_log_level, #timezone, #transaction_isolation_level

Instance Method Summary collapse

Methods inherited from Database

#<<, #[], adapter_class, #adapter_scheme, adapter_scheme, #add_column, #add_index, #add_servers, #after_commit, #after_rollback, #alter_table, #call, #cast_type_literal, connect, #create_join_table, #create_or_replace_view, #create_table, #create_table!, #create_table?, #create_view, #database_type, #dataset, #disconnect, #drop_column, #drop_index, #drop_join_table, #drop_table, #drop_table?, #drop_view, #dump_foreign_key_migration, #dump_indexes_migration, #dump_schema_cache, #dump_schema_cache?, #dump_schema_migration, #dump_table_schema, #each_server, #execute_ddl, #extend_datasets, #fetch, #foreign_key_list, #from, #from_application_timestamp, #get, identifier_input_method, #identifier_input_method, identifier_input_method=, #identifier_input_method=, #identifier_output_method, identifier_output_method, identifier_output_method=, #identifier_output_method=, #in_transaction?, #indexes, #inspect, #literal, #load_schema_cache, #load_schema_cache?, #log_exception, #log_info, #log_yield, #logger=, #prepared_statement, #query, #quote_identifiers=, quote_identifiers=, #quote_identifiers?, #remove_servers, #rename_column, #rename_table, #run, #schema, #select, #serial_primary_key_options, #servers, #set_column_default, #set_column_type, #set_prepared_statement, single_threaded=, #single_threaded?, #supports_create_table_if_not_exists?, #supports_drop_table_if_exists?, #supports_prepared_transactions?, #supports_savepoints?, #supports_savepoints_in_prepared_transactions?, #supports_transaction_isolation_levels?, #supports_transactional_ddl?, #synchronize, #table_exists?, #tables, #test_connection, #to_application_timestamp, #transaction, #typecast_value, #uri, #url, #views

Methods included from Metaprogramming

#meta_def

Constructor Details

#initialize(opts) ⇒ Database

Call the DATABASE_SETUP proc directly after initialization, so the object always uses sub adapter specific code. Also, raise an error immediately if the connection doesn’t have a db_type specified, since one is required to include the correct subadapter.



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# File 'lib/sequel/adapters/swift.rb', line 48

def initialize(opts)
  super
  if db_type = opts[:db_type] and !db_type.to_s.empty? 
    if prok = DATABASE_SETUP[db_type.to_s.to_sym]
      prok.call(self)
    else
      raise(Error, "No :db_type option specified")
    end
  else
    raise(Error, ":db_type option not valid, should be postgres, mysql, or sqlite")
  end
end

Instance Attribute Details

#swift_class ⇒ Object

The Swift adapter class being used by this database. Connections in this database’s connection pool will be instances of this class.



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# File 'lib/sequel/adapters/swift.rb', line 41

def swift_class
  @swift_class
end

Instance Method Details

#connect(server) ⇒ Object

Create an instance of swift_class for the given options.



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# File 'lib/sequel/adapters/swift.rb', line 62

def connect(server)
  setup_connection(swift_class.new(server_opts(server)))
end

#execute(sql, opts = {}) ⇒ Object

Execute the given SQL, yielding a Swift::Result if a block is given.



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# File 'lib/sequel/adapters/swift.rb', line 67

def execute(sql, opts={})
  synchronize(opts[:server]) do |conn|
    begin
      res = log_yield(sql){conn.execute(sql)}
      yield res if block_given?
      nil
    rescue SwiftError => e
      raise_error(e)
    end
  end
end

#execute_dui(sql, opts = {}) ⇒ Object

Execute the SQL on the this database, returning the number of affected rows.



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# File 'lib/sequel/adapters/swift.rb', line 81

def execute_dui(sql, opts={})
  synchronize(opts[:server]) do |conn|
    begin
      log_yield(sql){conn.execute(sql).rows}
    rescue SwiftError => e
      raise_error(e)
    end
  end
end

#execute_insert(sql, opts = {}) ⇒ Object

Execute the SQL on this database, returning the primary key of the table being inserted to.



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# File 'lib/sequel/adapters/swift.rb', line 93

def execute_insert(sql, opts={})
  synchronize(opts[:server]) do |conn|
    begin
      log_yield(sql){conn.execute(sql).insert_id}
    rescue SwiftError => e
      raise_error(e)
    end
  end
end