Function addInstanceProperty

lib/Instance.js:488–536

(key)

  }

  var addInstanceProperty = function (key) {
    var defaultValue = undefined;
    var prop = Model.allProperties[key];

    // This code was first added, and then commented out in a later commit.
    // Its presence doesn't affect tests, so I'm just gonna log if it ever gets called.
    // If someone complains about noise, we know it does something, and figure it out then.
    if (instance.hasOwnProperty(key)) console.log("Overwriting instance property");

    if (key in opts.data) {
      defaultValue = opts.data[key];
    } else if (prop && 'defaultValue' in prop) {
      defaultValue = prop.defaultValue;
    }

    setInstanceProperty(key, defaultValue);

    Object.defineProperty(instance, key, {
      get: function () {
        var val = opts.data[key];

        if (val === undefined) {
          return null;
        } else {
          return opts.data[key];
        }
      },
      set: function (val) {
        if (prop.key === true) {
          if (prop.type == 'serial' && opts.data[key] != null) {
            return;
          } else {
            opts.originalKeyValues[prop.name] = opts.data[prop.name];
          }
        }

        if (!setInstanceProperty(key, val)) {
          return;
        }

        if (opts.autoSave) {
          saveInstanceProperty(key, val);
        } else if (opts.changes.indexOf(key) === -1) {
          opts.changes.push(key);
        }
      },
      enumerable: !(prop && !prop.enumerable)
    });
  };
  var addInstanceExtraProperty = function (key) {
    if (!instance.hasOwnProperty("extra")) {
      instance.extra = {};