在使用dojo工具包和djit.tree
小部件时,我收到以下错误:
dojo.data.ItemFileWriteStore: Invalid item argument
在我的javascript函数中,它从我的php服务器加载json格式的数据,并使用dijit.tree
和ItemFileWriteStore
在ForestStoreModel
中显示。我的json数据如下:
{
"identifier": "id",
"label": "name",
"items": [{
"type": "parent",
"name": "Adresse des Finanzamts",
"id": "1020right00",
"children": [{
"type": "Leaf",
"name": "Relationship type: 1:1",
"id": "Adresse des Finanzamts1:1"
}, {
"type": "parent",
"name": "Left",
"id": "Adresse des Finanzamts010",
"children": [{
"type": "Leaf",
"name": "Table name: Finanzamtdaten",
"id": "1014left23432"
}, {
"type": "Leaf",
"name": "Field name: fkFinanzamtAdresse:INTEGER",
"id": "1018lef423t"
}]
}, {
"type": "parent",
"name": "Right",
"id": "Adresse des Finanzamts111",
"children": [{
"type": "Leaf",
"name": "Table name: Adresse",
"id": "105right234"
}, {
"type": "Leaf",
"name": "Field name: adresseId:INTEGER",
"id": "106right2223"
}]
}]
}, {
"type": "parent",
"name": "Adresse des Mitarbeiters",
"id": "1013right00",
"children": [{
"type": "Leaf",
"name": "Relationship type: 1:1",
"id": "Adresse des Mitarbeiters1:1"
}, {
"type": "parent",
"name": "Left",
"id": "Adresse des Mitarbeiters010",
"children": [{
"type": "Leaf",
"name": "Table name: Mitarbeiter",
"id": "100left23432"
}, {
"type": "Leaf",
"name": "Field name: fkAdresse:INTEGER",
"id": "1012lef423t"
}]
}, {
"type": "parent",
"name": "Right",
"id": "Adresse des Mitarbeiters111",
"children": [{
"type": "Leaf",
"name": "Table name: Adresse",
"id": "105right234"
}, {
"type": "Leaf",
"name": "Field name: adresseId:INTEGER",
"id": "106right2223"
}]
}]
}]
}
使用json_encode()
在服务器端格式化代码。
var treeObject = dijit.byId("relationStructure");
treeObject.model.store.clearOnClose = true;
treeObject.model.store.close();
var newStore = new dojo.data.ItemFileWriteStore({
data: data
});
treeObject.model.store = newStore;
treeObject.model.query = {"type": "parent"};
treeObject.rootId = "root";
treeObject.rootLabel = "Table content";
treeObject.childrenAttrs = ["children"];
treeObject.showRoot = false;
treeObject.refreshModel();
现在json数据:
{"identifier":"id","label":"name","items":[{"type":"parent","name":"Finanzamtdaten des Mitarbeiters","id":"1022right000","children":[{"type":"Leaf","name":"Relationship type: 1:1","id":"Finanzamtdaten des Mitarbeiters1:1"},{"type":"parent","name":"Left","id":"Finanzamtdaten des Mitarbeiters0100","children":[{"type":"Leaf","name":"Table name: Mitarbeiter","id":"100left234320"},{"type":"Leaf","name":"Field name: fkFinanzamtdaten:INTEGER","id":"1019lef423t0"}]},{"type":"parent","name":"Right","id":"Finanzamtdaten des Mitarbeiters1110","children":[{"type":"Leaf","name":"Table name: Finanzamtdaten","id":"1014right2340"},{"type":"Leaf","name":"Field name: finanzamtdatenId:INTEGER","id":"1015right22230"}]}]},{"type":"parent","name":"Adresse des Mitarbeiters","id":"1013right001","children":[{"type":"Leaf","name":"Relationship type: 1:1","id":"Adresse des Mitarbeiters1:1"},{"type":"parent","name":"Left","id":"Adresse des Mitarbeiters0101","children":[{"type":"Leaf","name":"Table name: Mitarbeiter","id":"100left234321"},{"type":"Leaf","name":"Field name: fkAdresse:INTEGER","id":"1012lef423t1"}]},{"type":"parent","name":"Right","id":"Adresse des Mitarbeiters1111","children":[{"type":"Leaf","name":"Table name: Adresse","id":"105right2341"},{"type":"Leaf","name":"Field name: adresseId:INTEGER","id":"106right22231"}]}]}]}
答案 0 :(得分:1)
您的数据与ID发生冲突。有两个具有相同ID 105right234
和106right2223
的项目。
"dojo.data.ItemFileWriteStore: The json data provided by the creation arguments
is malformed. Items within the list have identifier: [id].
Value collided: [105right234]"
如果您希望相同的项目在结构中出现两次,那么您需要查看_reference
结构的使用方式。
http://dojotoolkit.org/reference-guide/1.8/dojo/data/ItemFileReadStore.html#input-data-format
您的第二组数据可以很好地加载到商店中。
以下代码不适用于Dojo小部件。
treeObject.model.store = newStore;
treeObject.model.query = {"type": "parent"};
treeObject.rootId = "root";
treeObject.rootLabel = "Table content";
treeObject.childrenAttrs = ["children"];
treeObject.showRoot = false;
Dojo使用myWidget.set的惯例('model',new model);这允许自定义设置器逻辑。请参阅此链接了解更多信息。
http://dojotoolkit.org/reference-guide/1.8/quickstart/writingWidgets.html#custom-setters-getters
我创建了另一个使用您的数据并创建树的小提琴。