I have 3 eloquent models which are pretty much te same and represent discounts:
- AbsoluteDiscount
- OneProductForFreeDiscount
- QuantityDiscount
They all will get a method called "canBeApplied(Productable $productable)". Which does have a look at the given productables and then determine if the productable will be eligible for the discount it represents. The implementation of this method is different for those 3 different Discounts.
Now, their attributes are pretty much the same. They all have these attributes: name, active, valid_from, valid_trough. So i think i would need to have one single database table with these fields / column to represent those 3 discount eloquent models:
- id
- name
- discountable_type
- active
- valid_from
- valid_until
The column discountable_type will then the the fully qualified class names of the discounts. In case of a 10 and 20 dollar gift card you would use the name "Gift card - 10 dollar" and "20 dollar" and both of them the discountable_type of "Namspace\For\AbsoluteDiscount\AbsoluteDiscount".
What i am thinking i am needing to do is:
- Create a base eloquent model for those discount models to extend.
- Override the where method in each discount, appending an additional where method call to it with this as its content ('discountable_type', '=', AbsoluteDiscount::class) before returning it.
But then we also have methods: get, first, all and maybe more that need to be overridden. And what about saving? And these steps need to be done for all 3 discount models. Is there an easy way to do it like this or is this something i must not do?
