Dynamic fields

Dynamic field explanation:

dynamic_field attribute for LotModel depends on the selected category. Information about dynamic_field is written in the dynamic_fields_template attribute. So
when you select the category for a lot it should display dynamic fields from it for a specific lot. Each field contains its respective label and rules string which tells
whether it is required or not.

Example

Category:

JSON

[
  {
    "uuid": "uuid_1",
    "name": {
      "en": "Coins"
    },
    "dynamic_fields_template": {
      "title": {
        "type": "text",
        "label": "Title",
        "rules": {
          "required": true
        }
      },
      "description": {
        "type": "text",
        "label": "Title",
        "rules": {
          "required": false
        }
      }
    }
  },
  {
    "uuid": "uuid2",
    "name": {
      "en": "Stamps"
    },
    "dynamic_fields_template": {
      "year": {
        "label": "Year",
        "rules": {
          "required": true
        }
      },
      "creator": {
        "label": "Creator",
        "rules": null
      }
    }
  }
]

In this case, If the requested lot has:

1. Category with uuid_1: dynamic_fields are title and description.
2. Category with uuid_2: dynamic_fields are year and creator.

Lots

JSON

[
  {
    "category_uuid": "uuid1",
    "dynamic_fields": {
      "en": {
        "title": "title text",
        "description": "description text"
      }
    }
  },
  {
    "category_uuid": "uuid2",
    "dynamic_fields": {
      "en": {
        "year": 1999,
        "creator": null
      }
    }
  }
]