Down you can see the basic structure of product.
Down you can see the basic structure of order. It`s a show databases tab structure for more comfortable to using.
For select siped countries need create value in tab "siped_countries" and insert shipping price
User need create adres for delivering order. Adres creation possible in order declaration page (for quick creation) or user options page
In tab "user_adreses" user need write address information
Possible to create sale code. You can generate this code or write some word.
Also in tab "sale_codes" you can vrite discount of this code. Poseble ceate one time code (write "true" or "1" in "one_time_code" value).
User need write this code in order declaration tab
Go back - to README.md