Should I add a new field to product.product or to product.template on odoo 8.0?

Question

In odoo 8.0 *product.product* and *product.template* changed.

I want to create a module that adds a *new field* to the *product page*.

Should i inherit *product.product* and add a new field there or is *product.template *the right place?

Koffi KPONOUGLO · Accepted Answer

Hi Stefan,

See these codes :

class product_template(osv.osv):
_name = "product.template"
_inherit = ['mail.thread']
_description = "Product Template"

class product_product(osv.osv):
_name = "product.product"
_description = "Product"
_inherits = {'product.template': 'product_tmpl_id'}
_inherit = ['mail.thread']
_order = 'default_code,name_template'

*product.product* inherits *product.template* so you should add you new field in *product.product. *Your new field will available to both.

Walid Baruni · Answer

The main difference between product.product and product.template is when you use product variants.

If you add a field to product.template (template), then the field value will be shared to all variants (product.product) of that template.
If you add a field to product.product (variant), then the field value will be different in each variant of the same template (product.template)
If you don't use product variants, then I belive its better to add the field to product.product

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