Search 树搜索和刷新
我似乎不知道如何使用ItemFileWriteStore和TreeStoreModel在dijit.Tree中搜索。所有内容都是声明性的,我使用的是Dojo 1.7.1,以下是我到目前为止的内容:Search 树搜索和刷新,search,dojo,dijit.tree,Search,Dojo,Dijit.tree,我似乎不知道如何使用ItemFileWriteStore和TreeStoreModel在dijit.Tree中搜索。所有内容都是声明性的,我使用的是Dojo 1.7.1,以下是我到目前为止的内容: <input type="text" dojoType="dijit.form.TextBox" name="search_fruit" id="search_fruit" onclick="search_fruit();"> <!-- store --> <div da
<input type="text" dojoType="dijit.form.TextBox" name="search_fruit" id="search_fruit" onclick="search_fruit();">
<!-- store -->
<div data-dojo-id="fruitsStore" data-dojo-type="dojo.data.ItemFileWriteStore" clearOnClose="true" urlPreventCache="true" data-dojo-props='url:"fruits_store.php"'></div>
<!-- model -->
<div data-dojo-id="fruitsModel" data-dojo-type="dijit.tree.TreeStoreModel" data-dojo-props="store:fruitsStore, query:{}"></div>
<!-- tree -->
<div id="fruitsTree" data-dojo-type="dijit.Tree"
data-dojo-props='"class":"container",
model:fruitsModel,
dndController:"dijit.tree.dndSource",
betweenThreshold:5,
persist:true'>
</div>
使用网格而不是树,我的search_fruit()函数如下所示:
{"identifier":"id",
"label":"name",
"items":[{"id":"OYAHQIBVbeORMfBNZXFGOHPdaRMNUdWEDRPASHSVDBSKALKIcBZQ","name":"Fruits","children":[{"id":"bSKSVDdRMRfEFNccfTZbWHSACWbLJZMTNHDVVcYGcTBDcIdKIfYQ","name":"Banana"},{"id":"JYDeLNIGPDBRMcfSTMeERZZEUUIOMNEYYcNCaCQbCMIWOMQdMEZA","name":"Citrus","children":[{"id":"KdDUfEDaKOQMFNJaYbSbAcAPFBBdLALFMIPTFaYSeCaDOFaEPbJQ","name":"Orange"},{"id":"SDWbXWbTWKNJDIfdAdJbbbRWcLZFJHdEWASYDCeFOZYdcZUXJEUQ","name":"Lemon"}]},{"id":"fUdQTEZaIeBIWCHMeBZbPdEWWIQBFbVDbNFfJXNILYeBLbWUFYeQ","name":"Common ","children":[{"id":"MBeIUKReBHbFWPDFACFGWPePcNANPVdQLBBXYaTPRXXcTYRTJLDQ","name":"Apple"}]}]}]}
function search_fruit() {
var grid = dijit.byId('grid_fruits');
grid.query.search_txt = dijit.byId('search_fruit').get('value');
grid.selection.clear();
grid.store.close();
grid._refresh();
}
如何使用树实现同样的效果?谢谢 dijit.Tree的刷新变得有点复杂,因为涉及到一个模型(在grid afaik中是内置的,grid组件实现查询功能) 通过商店执行搜索 但是如何搜索,使用
ItemFileReadStore
时非常简单。语法如下:
myTree.model.store.fetch({
query: {
name: 'Oranges'
},
onComplete: function(items) {
dojo.forEach(items, function(item) {
console.log(myTree.model.store.getValue(item, "ID"));
});
}
});
仅显示搜索结果
如上所示,存储将获取,完整的有效负载被放入它的_allItemsArray中,存储查询引擎然后过滤掉查询参数告诉获取方法的内容。在任何时候,我们都可以调用store上的fetch,即使不发送json内容的XHR,也可以将带有查询参数的fetch视为一个简单的过滤器
让模型
知道这个查询会稍微有趣一些。。如果您这样做,它将根据从store.fetch({query:model.query})返回的结果,仅创建treeNode
s来填充树代码>
因此,与其发送带有回调的store.fetch,不如尝试设置模型查询并更新树
// seing as we are working with a multi-parent tree model (ForestTree), the query Must match a toplevel item or else nothing is shown
myTree.model.query = { name:'Fruits' };
// below method must be implemented to do so runtime
// and note, that the DnD might become invalid
myTree.update();
使用来自存储的新xhr请求刷新树
你需要像对待商店一样去做。关闭它,然后重建模型。模型包含所有TreeNode
s(在其根节点下),而树本身映射一个需要清除以避免内存泄漏的itemarray
因此,执行以下步骤将重建树-但是此示例不考虑,如果您激活了DnD,则dndSource/dndContainer仍将引用旧DOM,从而“保持活动”以前的DOMNode层次结构(隐藏ofc)
通过告诉模型其根节点未选中
,将检查其子节点的更改。一旦树完成其\u load()
关闭存储(以便存储将执行新的fetch()
完全删除dijit.树中的每个节点
delete this._itemNodesMap;
this._itemNodesMap = {};
this.rootNode.state = "UNCHECKED";
delete this.model.root.children;
this.model.root.children = null;
销毁小部件
this.rootNode.destroyRecursive();
重新创建模型(再次使用模型)
重建这棵树
this.postMixInProperties();
this._load();
);所有这些都是在dijit.Tree上定义的:
new dijit.Tree({
// arguments
...
// And additional functionality
update : function() {
this.model.store.clearOnClose = true;
this.model.store.close();
delete this._itemNodesMap;
this._itemNodesMap = {};
this.rootNode.state = "UNCHECKED";
delete this.model.root.children;
this.model.root.children = null;
this.rootNode.destroyRecursive();
this.model.constructor(this.model)
this.postMixInProperties();
this._load();
}
});
this.postMixInProperties();
this._load();
new dijit.Tree({
// arguments
...
// And additional functionality
update : function() {
this.model.store.clearOnClose = true;
this.model.store.close();
delete this._itemNodesMap;
this._itemNodesMap = {};
this.rootNode.state = "UNCHECKED";
delete this.model.root.children;
this.model.root.children = null;
this.rootNode.destroyRecursive();
this.model.constructor(this.model)
this.postMixInProperties();
this._load();
}
});