[16.0][IMP] sale_resource_booking: use type as product_attribute_value

[norlinhenrik]

PURPOSE

Use a resource booking type as a product attribute value.

1. Enable product variants in the settings.
2. Create a product attribute value (Resource Bookings - Configuration - Product Attributes).
3. Create a resource booking type, and use the field Product Attribute Value to connect the two records.
4. Create a product template. Use the Attributes & Variants tab to set the attribute & attribute value of the booking type.
5. Automatic: The product variant has the resource booking type.

A migration script updates product.product with resource_booking_type_id and resource_booking_type_combination_rel_id.

NEW MENUITEMS under Resource Bookings - Configuration

• Products - Search filter: Has booking type - Form view: readonly the booking type if there are multiple variants
• Product Variants - List view: button to BOOK if the booking type is set - Form view: button to see Bookings
• Product Attributes - Form view: see (readonly) the booking type of each attribute value

NEW FIELDS & ACTIONS

product.attribute.value

• resource_booking_type_ids (many2many)

product.product

• resource_booking_type_id
• resource_booking_type_combination_rel_id
• resource_booking_count
• resource_booking_ids (one2many)
• def action_view_resource_booking (different behavior if resource_booking_timeline is installed)
• def _set_resource_booking_type_id

product.template

• def _compute_resource_booking_type_and_combination_rel
• def _inverse_resource_booking_type_and_combination_rel

resource.booking.type

• product_ids (one2many)
• product_attribute_value_ids (many2many)
• def _check_unique_product_attribute_value_ids