1 | define([ |
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2 | "dojo/_base/declare", |
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3 | "dojo/_base/lang", |
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4 | "dojo/when", |
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5 | "./getPlainValue", |
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6 | "./EditModelRefController", |
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7 | "./StoreRefController" |
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8 | ], function(declare, lang, when, getPlainValue, EditModelRefController, StoreRefController){ |
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9 | return declare("dojox.mvc.EditStoreRefController", [StoreRefController, EditModelRefController], { |
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10 | // summary: |
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11 | // A child class of dojox/mvc/StoreRefController, managing edits. |
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12 | // description: |
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13 | // In addition to what dojox/mvc/StoreRefController does, the commit() method sends the data model as well as the removed entries in array to the data store. |
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14 | // NOTE - If this class is used with a widget by data-dojo-mixins, make sure putting the widget in data-dojo-type and putting this class to data-dojo-mixins. |
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15 | // example: |
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16 | // The check box refers to "value" property in the controller (with "ctrl" ID). |
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17 | // The controller provides the "value" property, from the data coming from data store ("store" property in the controller), using the first one in array. |
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18 | // Two seconds later, the check box changes from unchecked to checked. |
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19 | // The change is committed to the data store, which is reflected to dojo/store/Observable callback. |
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20 | // | <html> |
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21 | // | <head> |
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22 | // | <script src="/path/to/dojo-toolkit/dojo/dojo.js" type="text/javascript" data-dojo-config="parseOnLoad: 0"></script> |
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23 | // | <script type="text/javascript"> |
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24 | // | require([ |
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25 | // | "dojo/dom", "dojo/parser", "dojo/when", "dojo/store/Observable", "dojo/store/Memory", "dijit/registry", "dojo/domReady!" |
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26 | // | ], function(ddom, parser, when, Observable, Memory, registry){ |
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27 | // | store = Observable(new Memory({data: [{id: "Foo", value: false}]})); |
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28 | // | when(parser.parse(), function(){ |
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29 | // | registry.byId("ctrl").queryStore().observe(function(object, previousIndex, newIndex){ |
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30 | // | alert("ID: " + object.id + ", value: " + object.value); |
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31 | // | }, true); |
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32 | // | var count = 0; |
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33 | // | var h = setInterval(function(){ |
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34 | // | ddom.byId("check").click(); |
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35 | // | registry.byId("ctrl").commit(); |
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36 | // | if(++count >= 2){ clearInterval(h); } |
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37 | // | }, 2000); |
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38 | // | }); |
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39 | // | }); |
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40 | // | </script> |
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41 | // | </head> |
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42 | // | <body> |
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43 | // | <script type="dojo/require">at: "dojox/mvc/at"</script> |
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44 | // | <span id="ctrl" data-dojo-type="dojox/mvc/EditStoreRefController" data-dojo-mixins="dojox/mvc/ListController" |
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45 | // | data-dojo-props="store: store, cursorIndex: 0"></span> |
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46 | // | <input id="check" type="checkbox" data-dojo-type="dijit/form/CheckBox" data-dojo-props="checked: at('widget:ctrl', 'value')"> |
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47 | // | </body> |
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48 | // | </html> |
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49 | |
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50 | // getPlainValueOptions: dojox/mvc/getPlainValueOptions |
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51 | // The options to get plain value from stateful object. |
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52 | getPlainValueOptions: null, |
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53 | |
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54 | // _removals: Object[] |
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55 | // The list of removed elements. |
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56 | _removals: [], |
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57 | |
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58 | // _resultsWatchHandle: dojox/mvc/StatefulArray.watchElements.handle |
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59 | // The watch handle for model array elements. |
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60 | _resultsWatchHandle: null, |
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61 | |
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62 | // _refSourceModelProp: String |
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63 | // The property name for the data model, that serves as the data source. |
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64 | _refSourceModelProp: "sourceModel", |
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65 | |
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66 | queryStore: function(/*Object*/ query, /*dojo/store/api/Store.QueryOptions?*/ options){ |
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67 | // summary: |
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68 | // Queries the store for objects. |
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69 | // query: Object |
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70 | // The query to use for retrieving objects from the store. |
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71 | // options: dojo/store/api/Store.QueryOptions? |
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72 | // The optional arguments to apply to the resultset. |
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73 | // returns: dojo/store/api/Store.QueryResults |
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74 | // The results of the query, extended with iterative methods. |
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75 | |
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76 | if(!(this.store || {}).query){ return; } |
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77 | if(this._resultsWatchHandle){ this._resultsWatchHandle.unwatch(); } |
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78 | this._removals = []; |
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79 | var _self = this, |
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80 | queryResult = this.inherited(arguments), |
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81 | result = when(queryResult, function(results){ |
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82 | if(_self._beingDestroyed){ return; } |
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83 | if(lang.isArray(results)){ |
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84 | _self._resultsWatchHandle = results.watchElements(function(idx, removals, adds){ |
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85 | [].push.apply(_self._removals, removals); |
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86 | }); |
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87 | } |
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88 | return results; |
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89 | }); |
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90 | if(result.then){ |
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91 | result = lang.delegate(result); |
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92 | } |
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93 | // For dojo/store/Observable, which adds a function to query result |
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94 | for(var s in queryResult){ |
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95 | if(isNaN(s) && queryResult.hasOwnProperty(s) && lang.isFunction(queryResult[s])){ |
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96 | result[s] = queryResult[s]; |
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97 | } |
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98 | } |
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99 | return result; |
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100 | }, |
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101 | |
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102 | getStore: function(/*Number*/ id, /*Object*/ options){ |
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103 | // summary: |
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104 | // Retrieves an object by its identity. |
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105 | // id: Number |
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106 | // The identity to use to lookup the object. |
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107 | // options: Object |
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108 | // The options for dojo/store/*/get(). |
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109 | // returns: Object |
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110 | // The object in the store that matches the given id. |
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111 | |
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112 | if(this._resultsWatchHandle){ this._resultsWatchHandle.unwatch(); } |
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113 | return this.inherited(arguments); |
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114 | }, |
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115 | |
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116 | commit: function(){ |
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117 | // summary: |
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118 | // Send the change back to the data source. |
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119 | |
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120 | if(this._removals){ |
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121 | for(var i = 0; i < this._removals.length; i++){ |
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122 | this.store.remove(this.store.getIdentity(this._removals[i])); |
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123 | } |
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124 | this._removals = []; |
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125 | } |
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126 | var data = getPlainValue(this.get(this._refEditModelProp), this.getPlainValueOptions); |
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127 | if(lang.isArray(data)){ |
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128 | for(var i = 0; i < data.length; i++){ |
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129 | this.store.put(data[i]); |
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130 | } |
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131 | }else{ |
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132 | this.store.put(data); |
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133 | } |
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134 | this.inherited(arguments); |
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135 | }, |
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136 | |
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137 | reset: function(){ |
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138 | // summary: |
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139 | // Change the model back to its original state. |
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140 | |
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141 | this.inherited(arguments); |
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142 | this._removals = []; |
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143 | }, |
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144 | |
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145 | destroy: function(){ |
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146 | // summary: |
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147 | // Clean up model watch handle as this object is destroyed. |
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148 | |
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149 | if(this._resultsWatchHandle){ this._resultsWatchHandle.unwatch(); } |
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150 | this.inherited(arguments); |
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151 | } |
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152 | }); |
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153 | }); |
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