Question

ActiveRecord::Base.connection.execute “UPDATE ventas SET costo_de_compra = #{@nuevo_costo} WHERE id = #{@vid};”

but this updates that column value every time it’s recursed, what i want is just to insert that value to the already stablished values in that column… in proper instance i want to add the values to an integer column.

Thanks in advance

Answer 1

I don’t know Rails, but I guess something like this:

ActiveRecord::Base.connection.execute _
"UPDATE ventas SET costo_de_compra = costo_de_compra  + #{@nuevo_costo} _
WHERE id = #{@vid};"