gistfile1.js

    UNSAFE_PARAM_MATCHER : (/([^!]+)(!?)/)



    /**
    * Convert this object into a params hash. Useful for rendering templates
    * from the model data and for converting the item into server-ready params.
    * Pass in a list of fields, which will be mapped to the results of their 
    * method (if a method of that name exists) or properties otherwise. If you 
    * append '!' to the field name, you'll get the SafeString#unsafe() version.
    * @function ?
    */
    toParams : function() {
      var fields = $A(arguments);
      if (fields.length == 0) return this.toObject();
      var params = {};
      for (i=0; i<fields.length; i++) {
        var field = fields[i];
        var match = field.match(ZenItem.UNSAFE_PARAM_MATCHER);
        var key = match[1], unsafe = !!match[2];
        var val = this[key];
        val = val ? (Object.isFunction(val) ? this[key]() : val) : this.get(key);
        params[key] = unsafe ? val.unsafe() : val;
      }
      return params;
    },