1 // ==========================================================================
  2 // Project:   The M-Project - Mobile HTML5 Application Framework
  3 // Copyright: (c) 2010 M-Way Solutions GmbH. All rights reserved.
  4 // Creator:   Sebastian
  5 // Date:      22.11.2010
  6 // License:   Dual licensed under the MIT or GPL Version 2 licenses.
  7 //            http://github.com/mwaylabs/The-M-Project/blob/master/MIT-LICENSE
  8 //            http://github.com/mwaylabs/The-M-Project/blob/master/GPL-LICENSE
  9 // ==========================================================================
 10 
 11 m_require('core/datastore/validator.js')
 12 
 13 /**
 14  * @class
 15  *
 16  * Validates if passed value is a number. Works with Strings and Numbers. Strings are parsed into numbers and then checked.
 17  *
 18  * @extends M.Validator
 19  */
 20 M.NumberValidator = M.Validator.extend(
 21 /** @scope M.NumberValidator.prototype */ {
 22 
 23     /**
 24      * The type of this object.
 25      *
 26      * @type String
 27      */
 28     type: 'M.NumberValidator',
 29 
 30     /**
 31      * Validation method. If value's type is not "number" but a string, the value is parsed into an integer or float and checked versus the string value with '=='.
 32      * The '==' operator makes an implicit conversion of the value. '===' would return false.
 33      *
 34      * @param {Object} obj Parameter object. Contains the value to be validated, the {@link M.ModelAttribute} object of the property and the model record's id.
 35      * @returns {Boolean} Indicating whether validation passed (YES|true) or not (NO|false).
 36      */
 37     validate: function(obj) {
 38         if(typeof(obj.value) === 'number') {
 39             return YES;
 40         }
 41 
 42         /* == makes implicit conversion */ 
 43         if(typeof(obj.value) === 'string' && (parseInt(obj.value) == obj.value || parseFloat(obj.value) == obj.value)) {
 44             return YES;        
 45         }
 46 
 47         this.validationErrors.push({
 48             msg: obj.value + ' is not a number.',
 49             modelId: obj.modelId,
 50             property: obj.property,
 51             viewId: obj.viewId,
 52             validator: 'NUMBER',
 53             onSuccess: obj.onSuccess,
 54             onError: obj.onError
 55         });
 56         return NO;
 57     }
 58 });
 59