Users should be able to designate if they wish to allow a product to be substituted.
This should present to the users as a self-explanatory, toggle-able control.
By default, this will be set to false - Allow substitutions.
User can then switch it to true - No substitutions.
This control should be displayed on the cart view & product detail view.
Store results in the respective cart item for the product.
Users should be able to designate if they wish to allow a product to be substituted. This should present to the users as a self-explanatory, toggle-able control.
By default, this will be set to false - Allow substitutions. User can then switch it to true - No substitutions.
This control should be displayed on the cart view & product detail view.
Store results in the respective cart item for the product.
Also see #42, #43