how to change product_qty field data type from integer to float

Question

I am using the point_of_sale app in Odoo v8.

In the report pos.order.report, the field product_qty has a type of integer, but I need it to be float, since many of my products are sold by Kg and have three decimal places.

I attempted to change the data type in the model definition, but it tells me I have to change it in Python code by a new module.

How do I go about this?

IMTECH SOLUTIONS · Answer

Hi, any updates?

Travis Waelbroeck · Answer

The best place to start is in the Odoo Documentation:
Building a Module: http://www.odoo.com/documentation/8.0/howtos/backend.html#build-an-odoo-module
ORM: http://www.odoo.com/documentation/8.0/reference/orm.html#fields

Basically, you need to create the structure of a module, then inherit the core model and redefine the field as type of Float. You should be able to reference some of the core modules (or third party modules or tutorials) about how to create a module and field if the documentation is insufficient.

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