Module: Sequel::DataObjects::Postgres::DatabaseMethods

Includes:
Postgres::DatabaseMethods
Defined in:
lib/sequel/lib/sequel/adapters/do/postgres.rb

Overview

Methods to add to Database instances that access PostgreSQL via DataObjects.

Constant Summary

Constants included from Postgres::DatabaseMethods

Postgres::DatabaseMethods::PREPARED_ARG_PLACEHOLDER, Postgres::DatabaseMethods::RE_CURRVAL_ERROR, Postgres::DatabaseMethods::SYSTEM_TABLE_REGEXP

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Postgres::DatabaseMethods

#create_function, #create_language, #create_trigger, #database_type, #drop_function, #drop_language, #drop_table, #drop_trigger, #indexes, #locks, #primary_key, #primary_key_sequence, #reset_primary_key_sequence, #serial_primary_key_options, #server_version, #supports_savepoints?, #table_exists?, #tables

Class Method Details

.extended(db) ⇒ Object

Add the primary_keys and primary_key_sequences instance variables, so we can get the correct return values for inserted rows.


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# File 'lib/sequel/lib/sequel/adapters/do/postgres.rb', line 52

def self.extended(db)
  db.instance_eval do
    @primary_keys = {}
    @primary_key_sequences = {}
  end
end

Instance Method Details

#dataset(opts = nil) ⇒ Object

Return instance of Sequel::DataObjects::Postgres::Dataset with the given opts.


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# File 'lib/sequel/lib/sequel/adapters/do/postgres.rb', line 60

def dataset(opts=nil)
  Sequel::DataObjects::Postgres::Dataset.new(self, opts)
end

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

Run the INSERT sql on the database and return the primary key for the record.


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# File 'lib/sequel/lib/sequel/adapters/do/postgres.rb', line 66

def execute_insert(sql, opts={})
  log_info(sql)
  synchronize(opts[:server]) do |conn|
    conn.create_command(sql).execute_non_query
    insert_result(conn, opts[:table], opts[:values])
  end
end