Module: Returning::Rails30::Arel::Crud

Defined in:
lib/returning/rails30/arel/crud.rb

Instance Method Summary collapse

Instance Method Details

#delete ⇒ Object 



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# File 'lib/returning/rails30/arel/crud.rb', line 27

def delete
  dm = ::Arel::DeleteManager.new @engine
  dm.wheres = @ctx.wheres
  dm.from @ctx.froms
  dm.returning @ctx.returnings if @ctx.returnings

  if @ctx.returnings
    @engine.connection.select_all dm.to_sql, 'AREL'
  else
    @engine.connection.delete dm.to_sql, 'AREL'
  end
end

#update(values) ⇒ Object 



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# File 'lib/returning/rails30/arel/crud.rb', line 5

def update values
  um = ::Arel::UpdateManager.new @engine

  if ::Arel::Nodes::SqlLiteral === values
    relation = @ctx.froms
  else
    relation = values.first.first.relation
  end
  um.table relation
  um.set values
  um.take @ast.limit.expr if @ast.limit
  um.order(*@ast.orders)
  um.wheres = @ctx.wheres
  um.returning @ctx.returnings if @ctx.returnings

  if @ctx.returnings
    @engine.connection.select_all um.to_sql, 'AREL'
  else
    @engine.connection.update um.to_sql, 'AREL'
  end
end