Odoo11: website snippet for manage a single customer linked to logged user

I need a snippet (draggable from website standard editor of odoo, theme based on ) that give possibility to add a form on a new page for create/update a customer linked to logged user. In this way, a generic user can log in website portal and see or fill information on own linked customer. Fixed fields on form must be: - company name - company logo - company address (street, city, state, zip) - company email - company website url - company phone - company tin / vat number - customer name (like a contact) - customer email - customer mobile - customer tax code / social security number Constraints: - portal user can create only one customer and only one contact inside it - portal user can modify only own customer / contact - portal user cannot delete previous records - portal user cannot see other users or customers - every time a user logs in he sees the customer that he created - is not important form layout/style (a simple vertical layout is ok) - module developed for odoo11 - all stuff must be written inside module (no hack or change directly on db) mmm I suppose that's all, are you interested?