@commodo/fields/fields/fields.js

Enables defining rich data models by decorating function instances with specified model fields. Additionally, it adds `populate` and `validate` methods, for populating model instances with data, and then validating it, respectively.

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));

var _objectWithoutProperties2 = _interopRequireDefault(require("@babel/runtime/helpers/objectWithoutProperties"));

var _WithFieldsError = _interopRequireDefault(require("./../WithFieldsError"));

var _repropose = require("repropose");

var _fields = require("@commodo/fields");

var _name = require("@commodo/name");

var _withFieldDataTypeValidation = _interopRequireDefault(require("./withFieldDataTypeValidation"));

var _createField = _interopRequireDefault(require("./createField"));

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { (0, _defineProperty2.default)(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }

const prepareValue = ({
  value,
  instanceOf
}) => {
  let newValue = null;

  if (value) {
    if ((0, _fields.hasFields)(value)) {
      newValue = value;
    } else {
      newValue = new instanceOf();

      if (typeof newValue.populate === "function") {
        newValue.populate(value);
      } else {
        throw new _WithFieldsError.default(`Cannot populate model "${instanceOf}" - "populate" method missing. Forgot to use "withFields"?`, _WithFieldsError.default.MODEL_POPULATE_MISSING);
      }
    }
  }

  return newValue;
};

const fields = (_ref) => {
  let {
    list,
    instanceOf
  } = _ref,
      rest = (0, _objectWithoutProperties2.default)(_ref, ["list", "instanceOf"]);

  if (!instanceOf) {
    throw new _WithFieldsError.default(`When defining a "fields" field, "instanceOf" argument must be set.`, _WithFieldsError.default.MODEL_FIELD_INSTANCEOF_NOT_SET);
  }

  const field = (0, _createField.default)(_objectSpread(_objectSpread({}, rest), {}, {
    list,
    type: "fields"
  }));
  (0, _repropose.withProps)(instance => {
    const {
      setValue,
      validate,
      isDirty,
      clean
    } = instance;
    return {
      instanceOf,

      isDirty() {
        if (isDirty.call(this)) {
          return true;
        }

        if (instance.current === null) {
          return false;
        }

        if (instance.list) {
          for (let i = 0; i < instance.current.length; i++) {
            let currentElement = instance.current[i];

            if (currentElement.isDirty()) {
              return true;
            }
          }

          return false;
        }

        return (0, _fields.hasFields)(instance.current) && instance.current.isDirty();
      },

      clean() {
        clean.call(this);

        if (instance.current === null) {
          return this;
        }

        if (instance.list) {
          for (let i = 0; i < instance.current.length; i++) {
            let currentElement = instance.current[i];

            if (currentElement.isDirty()) {
              currentElement.clean();
            }
          }

          return this;
        }

        if (instance.current.isDirty()) {
          instance.current.clean();
        }

        return this;
      },

      setValue(value) {
        if (value === null) {
          return setValue.call(this, null);
        }

        if (this.list) {
          const preparedValues = [];
          value.forEach(item => preparedValues.push(prepareValue({
            value: item,
            instanceOf
          })));
          return setValue.call(this, preparedValues);
        }

        const preparedValue = prepareValue({
          value,
          instanceOf
        });
        return setValue.call(this, preparedValue);
      },

      async validate() {
        await validate.call(this);

        if (this.current === null) {
          return;
        }

        if (this.list) {
          for (let i = 0; i < this.current.length; i++) {
            const current = this.current[i];
            current && (await current.validate());
          }

          return;
        }

        this.current && (await this.current.validate());
      }

    };
  })(field);
  (0, _withFieldDataTypeValidation.default)(value => {
    if (typeof value === "object") {
      if ((0, _fields.hasFields)(value)) {
        // If both received value and instanceOf has a name attached, let's compare by it.
        if ((0, _name.hasName)(value) && (0, _name.hasName)(instanceOf)) {
          return (0, _name.getName)(value) === (0, _name.getName)(instanceOf);
        }

        return value instanceof instanceOf;
      }

      return true;
    }

    return false;
  })(field);
  return field;
};

var _default = fields;
exports.default = _default;
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