Partial update for subproperties of object property

[morrisson]

Gohan allows to update a part of resource with PUT API. However, update of subproperty of object property results in replace with the object. For example,

Sample Schema

schemas:
- id: simple
  description: simple resource
  singular: simple
  plural: simples
  prefix: /v1.0
  schema:
    properties:
      id:
        description: The ID of the resource
        title: ID
        type: string
        format: uuid
        permission:
        - create
        view:
        - detail
      name:
        description: The name of the resource
        title: Name
        type: string
        permission:
        - create
        - update
      info:
        description: The detail info
        title: Info
        type: object
        permission:
        - create
        - update
        properties:
          address:
            type: string
            title: Address
          tel:
            type: string
            title: Telephone Number
      tenant_id:
        description: The Tenant ID
        title: Tenant ID
        type: string
        permission:
        - create
        view:
        - detail
    propertiesOrder:
    - id
    - name
    - info
    - tenant_id
    type: object
  title: Simple

Sample Use Case

Create data as follows:

curl -X POST -H "X-Auth-Token: <token>" http://localhost:9091/simples -d '{"id": "google", "name": "Google", "info": {"address": "160 Amphitheatre Pkwy, Mountain View, CA 94043", "tel": "(650) 253-0000"}}'

Then, data will be

+--------+--------+----------------------------------------------------------------------------------------+
| id     | name   | info 
+--------+--------+----------------------------------------------------------------------------------------+
| google | Google | {"address": "160 Amphitheatre Pkwy, Mountain View, CA 94043", "tel": "(650) 253-0000"} | 
+--------+--------+----------------------------------------------------------------------------------------+

However, real address is wrong, so user tried to modify 'only' address by:

curl -X PUT -H "X-Auth-Token: <token>" http://localhost:9091/simples/google -d '{"name": "Google", "info": {"address": "1600 Amphitheatre Pkwy, Mountain View, CA 94043"}}'

Then, data will unfortunately lose 'tel' info.

+--------+--------+----------------------------------------------------------------+
| id     | name   | info 
+--------+--------+----------------------------------------------------------------+
| google | Google | {"address": "1600 Amphitheatre Pkwy, Mountain View, CA 94043"} | 
+--------+--------+----------------------------------------------------------------+

Of course, one workaround is bringing all properties to '1st level'. However, sometimes this workaround becomes unreasonable from the viewpoint of schema architecture.