books/schemas/meta/child.json

{
  "name": "child",
  "fields": [
    {
      "fieldname": "idx",
      "fieldtype": "Int",
      "required": true,
      "meta": true
    },
    {
      "fieldname": "parent",
      "fieldtype": "Data",
      "required": true,
      "meta": true
    },
    {
      "fieldname": "parentSchemaName",
      "fieldtype": "Data",
      "required": true,
      "meta": true
    },
    {
      "fieldname": "parentFieldname",
      "fieldtype": "Data",
      "required": true,
      "meta": true
    }
  ]
}