Class: ROM::SQL::Commands::Delete

Inherits:

Commands::Delete

• Object
• Commands::Delete
• ROM::SQL::Commands::Delete

Includes:

ErrorWrapper, Transaction

Defined in:

lib/rom/sql/commands/delete.rb

Overview

SQL delete command

Instance Method Summary

• #call(*args) ⇒ Object (also: #[]) included from ErrorWrapper

  Handle Sequel errors and re-raise ROM-specific errors.

• #execute ⇒ Array<Hash>

  Deletes tuples from a relation.

• #transaction(options = {}, &block) ⇒ ROM::Commands::Result::Success, ROM::Commands::Result::Failure included from Transaction

  Start a transaction.

Instance Method Details

#call(*args) ⇒ Object Also known as: [] Originally defined in module ErrorWrapper

Handle Sequel errors and re-raise ROM-specific errors

#execute ⇒ Array<Hash>

Deletes tuples from a relation

Returns:

• (Array<Hash>) —

  deleted tuples

# File 'lib/rom/sql/commands/delete.rb', line 21

def execute
  deleted = relation.to_a
  relation.delete
  deleted
end

#transaction(options = {}, &block) ⇒ ROM::Commands::Result::Success, ROM::Commands::Result::Failure Originally defined in module Transaction

Start a transaction

Parameters:

• options (Hash) (defaults to: {}) —

  The options hash supported by Sequel

Returns:

• (ROM::Commands::Result::Success, ROM::Commands::Result::Failure)