fieldsMessages.json

{
  "fields": [
    {
      "name": "title",
      "type": "string"
    },
    {
      "name": "content",
      "type": "text"
    },
    {
      "name": "post_id",
      "type": "integer#unsigned"
    },
    {
      "name": "sender_id",
      "type": "integer#unsigned"
    },
    {
      "name": "receiver_id",
      "type": "integer#unsigned"
    }
  ],
  "foreign_keys": [
    {
      "column": "sender_id",
      "references": "id",
      "on": "users",
      "onDelete": "cascade"
    },
    {
      "column": "receiver_id",
      "references": "id",
      "on": "users",
      "onDelete": "cascade"
    },
    {
      "column": "post_id",
      "references": "id",
      "on": "posts",
      "onDelete": "cascade"
    }
  ],
  "relationships": [
    {
      "name": "user",
      "type": "belongsTo",
      "class": "App\\User"
    },
    {
      "name": "post",
      "type": "belongsTo",
      "class": "App\\Post"
    }
  ],
  "validations": [
    {
      "field": "title",
      "rules": "required"
    },
    {
      "field": "content",
      "rules": "required"
    }
  ]
}