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   1  /*
   2  YUI 3.17.2 (build 9c3c78e)
   3  Copyright 2014 Yahoo! Inc. All rights reserved.
   4  Licensed under the BSD License.
   5  http://yuilibrary.com/license/
   6  */
   7  
   8  YUI.add('dataschema-base', function (Y, NAME) {
   9  
  10  /**
  11   * The DataSchema utility provides a common configurable interface for widgets to
  12   * apply a given schema to a variety of data.
  13   *
  14   * @module dataschema
  15   * @main dataschema
  16   */
  17  
  18  /**
  19   * Provides the base DataSchema implementation, which can be extended to
  20   * create DataSchemas for specific data formats, such XML, JSON, text and
  21   * arrays.
  22   *
  23   * @module dataschema
  24   * @submodule dataschema-base
  25   */
  26  
  27  var LANG = Y.Lang,
  28  /**
  29   * Base class for the YUI DataSchema Utility.
  30   * @class DataSchema.Base
  31   * @static
  32   */
  33      SchemaBase = {
  34      /**
  35       * Overridable method returns data as-is.
  36       *
  37       * @method apply
  38       * @param schema {Object} Schema to apply.
  39       * @param data {Object} Data.
  40       * @return {Object} Schema-parsed data.
  41       * @static
  42       */
  43      apply: function(schema, data) {
  44          return data;
  45      },
  46  
  47      /**
  48       * Applies field parser, if defined
  49       *
  50       * @method parse
  51       * @param value {Object} Original value.
  52       * @param field {Object} Field.
  53       * @return {Object} Type-converted value.
  54       */
  55      parse: function(value, field) {
  56          if(field.parser) {
  57              var parser = (LANG.isFunction(field.parser)) ?
  58              field.parser : Y.Parsers[field.parser+''];
  59              if(parser) {
  60                  value = parser.call(this, value);
  61              }
  62              else {
  63                  Y.log("Could not find parser for field " + Y.dump(field), "warn", "dataschema-json");
  64              }
  65          }
  66          return value;
  67      }
  68  };
  69  
  70  Y.namespace("DataSchema").Base = SchemaBase;
  71  Y.namespace("Parsers");
  72  
  73  
  74  }, '3.17.2', {"requires": ["base"]});