mvom/schemaType/BaseSchemaType.js

Multivalue Object Mapper

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var _utils = require("../utils");
// #region types

// #endregion

/** Abstract Base Schema Type */
class BaseSchemaType {
  validators = [];

  /** Create an array of foreign key definitions that will be validated before save */
  // eslint-disable-next-line @typescript-eslint/no-unused-vars
  transformForeignKeyDefinitionsToDb(value) {
    return [];
  }

  /** Cast to complex data type (when applicable) */
  cast(value) {
    return value;
  }

  /** Get data from a multivalue array at a given path */
  getFromMvArray(path, record = []) {
    // if the entire contents of the record at the base path is null then we must treat this as a special case:
    // - returning undefined won't alter the behavior of scalar data types (e.g. string, Boolean) since the undefined
    //   value will essentially get typecast back into null which is handled by all scalar types.
    // - it is important to all "array" types that null be interpreted differently, however.  A null for a value intended
    //   to become an array needs to be treated as an empty array, which is different than an array of null.  Returning
    //   undefined here will allow the array types to detect this event and behave accordingly.
    const attributeData = record[path[0]];
    if (attributeData == null) {
      return undefined;
    }
    if (path.length === 3 && Array.isArray(attributeData) && attributeData[path[1]] == null) {
      return undefined;
    }

    // lodash.get will not work here because "array" data might be returned from multi-value that still
    // appears like a non-array; if that happens, lodash.get would return the character at that string position instead;
    // this reducer ensures that the appropriate value is retrieved.
    return path.slice(1).reduce((acc, pathPart) => (0, _utils.ensureArray)(acc)[pathPart], attributeData);
  }

  /** Get value from mv data */

  /** Set value into mv data */

  /** Validate value */
}
var _default = exports.default = BaseSchemaType;