1 // ==========================================================================
  2 // Project:   The M-Project - Mobile HTML5 Application Framework
  3 // Copyright: (c) 2010 M-Way Solutions GmbH. All rights reserved.
  4 //            (c) 2011 panacoda GmbH. All rights reserved.
  5 // Creator:   Sebastian
  6 // Date:      22.11.2010
  7 // License:   Dual licensed under the MIT or GPL Version 2 licenses.
  8 //            http://github.com/mwaylabs/The-M-Project/blob/master/MIT-LICENSE
  9 //            http://github.com/mwaylabs/The-M-Project/blob/master/GPL-LICENSE
 10 // ==========================================================================
 11 
 12 m_require('core/datastore/validator.js')
 13 
 14 /**
 15  * @class
 16  *
 17  * Validates if passed value is a number. Works with Strings and Numbers. Strings are parsed into numbers and then checked.
 18  *
 19  * @extends M.Validator
 20  */
 21 M.NumberValidator = M.Validator.extend(
 22 /** @scope M.NumberValidator.prototype */ {
 23 
 24     /**
 25      * The type of this object.
 26      *
 27      * @type String
 28      */
 29     type: 'M.NumberValidator',
 30 
 31     /**
 32      * 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 '=='.
 33      * The '==' operator makes an implicit conversion of the value. '===' would return false.
 34      *
 35      * @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.
 36      * @returns {Boolean} Indicating whether validation passed (YES|true) or not (NO|false).
 37      */
 38     validate: function(obj) {
 39         if(typeof(obj.value) === 'number') {
 40             return YES;
 41         }
 42 
 43         /* == makes implicit conversion */ 
 44         if(typeof(obj.value) === 'string' && (parseInt(obj.value) == obj.value || parseFloat(obj.value) == obj.value)) {
 45             return YES;        
 46         }
 47 
 48         var err = M.Error.extend({
 49             msg: this.msg ? this.msg : obj.value + ' is not a number.',
 50             code: M.ERR_VALIDATION_NUMBER,
 51             errObj: {
 52                 msg: obj.value + ' is not a number.',
 53                 modelId: obj.modelId,
 54                 property: obj.property,
 55                 viewId: obj.viewId,
 56                 validator: 'NUMBER',
 57                 onSuccess: obj.onSuccess,
 58                 onError: obj.onError
 59             }
 60         });
 61 
 62         this.validationErrors.push(err);
 63 
 64         return NO;
 65     }
 66 });
 67