Class: Sequel::Amalgalite::Database

Inherits:
Database show all
Includes:
SQLite::DatabaseMethods
Defined in:
lib/sequel/adapters/amalgalite.rb

Constant Summary

Constants included from SQLite::DatabaseMethods

SQLite::DatabaseMethods::AUTO_VACUUM, SQLite::DatabaseMethods::SYNCHRONOUS, SQLite::DatabaseMethods::TEMP_STORE, SQLite::DatabaseMethods::TRANSACTION_MODE

Constants inherited from Database

Database::ADAPTERS, Database::COLUMN_DEFINITION_ORDER, Database::COLUMN_SCHEMA_DATETIME_TYPES, Database::COLUMN_SCHEMA_STRING_TYPES, Database::COMBINABLE_ALTER_TABLE_OPS, Database::DEFAULT_DATABASE_ERROR_REGEXPS, Database::DEFAULT_STRING_COLUMN_SIZE, Database::EXTENSIONS, Database::OPTS, Database::SCHEMA_TYPE_CLASSES, Database::TRANSACTION_ISOLATION_LEVELS

Instance Attribute Summary

Attributes included from SQLite::DatabaseMethods

#current_timestamp_utc, #integer_booleans, #transaction_mode, #use_timestamp_timezones

Attributes inherited from Database

#cache_schema, #check_string_typecast_bytesize, #dataset_class, #default_string_column_size, #log_connection_info, #log_warn_duration, #loggers, #opts, #pool, #prepared_statements, #sql_log_level, #timezone, #transaction_isolation_level

Instance Method Summary collapse

Methods included from SQLite::DatabaseMethods

#foreign_key_list, #freeze, #indexes, #set_integer_booleans, #sqlite_version, #support_without_rowid?, #supports_create_table_if_not_exists?, #supports_deferrable_foreign_key_constraints?, #supports_partial_indexes?, #supports_savepoints?, #tables, #use_timestamp_timezones?, #values, #views

Methods inherited from Database

#<<, #[], adapter_class, #adapter_scheme, adapter_scheme, #add_column, #add_index, #add_servers, #after_commit, after_initialize, #after_rollback, #alter_table, #alter_table_generator, #call, #cast_type_literal, connect, #create_join_table, #create_join_table!, #create_join_table?, #create_or_replace_view, #create_table, #create_table!, #create_table?, #create_table_generator, #create_view, #dataset, #disconnect, #disconnect_connection, #drop_column, #drop_index, #drop_join_table, #drop_table, #drop_table?, #drop_view, #extend_datasets, #extension, extension, #fetch, #freeze, #from, #from_application_timestamp, #get, #global_index_namespace?, #in_transaction?, #initialize, #inspect, #literal, #literal_symbol, #literal_symbol_set, load_adapter, #log_connection_yield, #log_exception, #log_info, #logger=, #new_connection, #prepared_statement, #quote_identifier, register_extension, #remove_servers, #rename_column, #rename_table, #rollback_checker, #rollback_on_exit, #run, run_after_initialize, #schema, #schema_type_class, #select, #serial_primary_key_options, #servers, #set_column_default, #set_column_type, #set_prepared_statement, set_shared_adapter_scheme, #sharded?, #single_threaded?, #supports_create_table_if_not_exists?, #supports_deferrable_constraints?, #supports_deferrable_foreign_key_constraints?, #supports_drop_table_if_exists?, #supports_foreign_key_parsing?, #supports_index_parsing?, #supports_partial_indexes?, #supports_prepared_transactions?, #supports_savepoints?, #supports_savepoints_in_prepared_transactions?, #supports_schema_parsing?, #supports_table_listing?, #supports_transaction_isolation_levels?, #supports_transactional_ddl?, #supports_view_listing?, #supports_views_with_check_option?, #supports_views_with_local_check_option?, #synchronize, #table_exists?, #test_connection, #to_application_timestamp, #transaction, #typecast_value, #uri, #url, #valid_connection?

Constructor Details

This class inherits a constructor from Sequel::Database

Instance Method Details

#connect(server) ⇒ Object

Connect to the database. Since SQLite is a file based database, the only options available are :database (to specify the database name), and :timeout, to specify how long to wait for the database to be available if it is locked, given in milliseconds (default is 5000).



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# File 'lib/sequel/adapters/amalgalite.rb', line 74

def connect(server)
  opts = server_opts(server)
  opts[:database] = ':memory:' if blank_object?(opts[:database])
  db = ::Amalgalite::Database.new(opts[:database])
  db.busy_handler(::Amalgalite::BusyTimeout.new(opts.fetch(:timeout, 5000)/50, 50))
  db.type_map = SequelTypeMap.new(self)
  connection_pragmas.each{|s| log_connection_yield(s, db){db.execute_batch(s)}}
  db
end

#database_type ⇒ Object 



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# File 'lib/sequel/adapters/amalgalite.rb', line 84

def database_type
  :sqlite
end

#execute(sql, opts = OPTS) ⇒ Object 



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# File 'lib/sequel/adapters/amalgalite.rb', line 101

def execute(sql, opts=OPTS)
  _execute(sql, opts) do |conn|
    begin
      yield(stmt = log_connection_yield(sql, conn){conn.prepare(sql)})
    ensure
      stmt.close if stmt
    end
  end
end

#execute_ddl(sql, opts = OPTS) ⇒ Object 



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# File 'lib/sequel/adapters/amalgalite.rb', line 88

def execute_ddl(sql, opts=OPTS)
  _execute(sql, opts){|conn| log_connection_yield(sql, conn){conn.execute_batch(sql)}}
  nil
end

#execute_dui(sql, opts = OPTS) ⇒ Object 



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

def execute_dui(sql, opts=OPTS)
  _execute(sql, opts){|conn| log_connection_yield(sql, conn){conn.execute_batch(sql)}; conn.row_changes}
end

#execute_insert(sql, opts = OPTS) ⇒ Object 



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# File 'lib/sequel/adapters/amalgalite.rb', line 97

def execute_insert(sql, opts=OPTS)
  _execute(sql, opts){|conn| log_connection_yield(sql, conn){conn.execute_batch(sql)}; conn.last_insert_rowid}
end

#single_value(sql, opts = OPTS) ⇒ Object

Run the given SQL with the given arguments and return the first value of the first row.



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# File 'lib/sequel/adapters/amalgalite.rb', line 112

def single_value(sql, opts=OPTS)
  _execute(sql, opts){|conn| log_connection_yield(sql, conn){conn.first_value_from(sql)}}
end