我有一个数据视图列表，它从服务器获取数据，将其放入存储中，然后呈现到模板中。标准的东西。
UI 中的 dataview 列表上方是一个包含一些 Ext.Buttons 的按钮栏。我希望能够点击一个按钮并根据按钮的名称过滤列表。例如：单击“English 9A”按钮并在列表中显示带有“English 9A”的“ title ”的项目。
截至目前，当我单击按钮时，列表消失了，并且出现控制台错误：“Uncaught TypeError: Cannot read property 'position' of undefined”和列表所在的加载微调器。
我知道那里有类似的问题，但我已经尝试了所有解决方案，但一点运气都没有。
示例 json 数据：
{
"ftype":"Announcement",
"value":{
"created":"7/18/2013 05:40:06 PM",
"content":"Hello class, it is July 29th. This is quiz",
"announcementtypename":"HW",
"announcementtypeid":2,
"expiresdate":"2013-07-19",
"isowner":false,
"gradable":false,
"starred":false,
"id":172459,
"order":1,
"state":1,
"statetyped":1,
"qnacount":0,
"attachmentscount":0,
"ownerattachmentscount":0,
"title":"Spanish 9A",
}
},
{
"ftype":"Announcement",
"value":{
"created":"7/18/2013 12:04:45 PM",
"content":"Hello class, it is July 18th. Here is an essay",
"announcementtypename":"HW",
"announcementtypeid":2,
"expiresdate":"2013-07-19",
"isowner":false,
"gradable":false,
"starred":false,
"id":172009,
"order":61,
"state":1,
"statetyped":1,
"qnacount":0,
"attachmentscount":0,
"ownerattachmentscount":0,
"title":"English 9A",
}
}
模型：
Ext.define('app.model.FeedModel', {
extend: 'Ext.data.Model',
config: {
sorters: 'title',
fields: [
{name: 'content', type: "string"},
{name: 'created', type: "string"},
{name: 'announcementtypename', type: "string"},
{name: 'announcementtypeid', type: "integer"},
{name: 'attachmentscount', type: "integer"},
{name: 'applicationscount', type: "integer"},
{name: 'ftype', type: "string"},
{name: 'title', type: "string"},
{name: 'expiresdate', type: "string"},
{name: 'starred', type: "boolean"}
]
}
});
店铺：
Ext.define('app.store.FeedStore',{
extend: 'Ext.data.Store',
config:{
storeId:'FeedStore',
model:'app.model.FeedModel',
filterRoot: 'title', // * --does nothing
filters: [
{
property: 'title' // * --does nothing
}
],
}
});
控制器：（需要帮助）
//the button name matches the "title" node in the json
filterFeedFunc: function(button){
var name = button.config.name;
var sto = Ext.getStore('FeedStore');
var all = "allname";
if (name == all){
sto.clearFilter(); // when they click "all" it should show all items - doesn't work
}
//sto.clearFilter(); // * --doesn't work
//sto.filter('title', name); // * --doesn't work
sto.filter({
property: 'title', // * --doesn't work, need something new here
value: name,
exactMatch: true
});
sto.load(); // no
},
更新/编辑
风景：
Ext.define('app.view.feed.Feed', {
extend: 'Ext.dataview.List',
xtype: 'Feed',
alias: 'widget.feedlist',
config: {
cls: 'feedlist',
store : 'FeedStore',
model: 'FeedModel',
title:'',
emptyText:'no items',
style: 'background-color:#ffffff',
itemTpl: new Ext.XTemplate(
'<tpl for=".">'+
'<div class="feed-item-box">'+
'<tpl if="values.starred == true"> <img src="img/Important.png"> </tpl>'+
'<tpl if="!values.starred"> <img src="img/not-starred.png"> </tpl>'+
'<div class="anntype"><h1>{announcementtypename} </h1></div>' +
'<div class="classname"><h2>{title:ellipsis(30)} </h2></div>' +
'<div class="content"><h4>{content:ellipsis(50)} {summary}</h4></div>' +
'<tpl if="values.attachmentscount || values.applicationscount"><div class="attachment-clip"></div> </tpl>' +
'<div class="due"> ' +
'<h4>{[this.dueInfo(values.expiresdate)]} </h4>' +
'</div>' +
'</div>'+
'</tpl>',{
getUrl: function(){
var store = Ext.getStore('UrlStore');
var url = store.last();
return url.data.url;
},
dueInfo: function(date){
var origDate = moment(date).format("MMMM Do");
var today = moment().format("MMMM Do");
if (today.match(origDate)){
return "Today"
} else{
return origDate
}
}
}),
listeners:{
refresh: function(records) {
var me = this;
var classes = Ext.getStore('ClassListStore')._data.items;
me.setItems([{
cls : 'classbar',
docked : 'top',
xtype : 'dataview',
inline: {
wrap: false
},
scrollable: {
direction: 'horizontal',
directionLock: true
},
height : 101,
html : '<div class="select-all" style= "float: left"></div>',
itemTpl: ''.concat (
'<tpl for=".">',
'<div class="select-{id}"></div>',
'</tpl>'
),
store : Ext.getStore('ClassListStore'),
model : 'app.model.ClassListModel',
listeners:{
refresh: function(){
var bar = jQuery('.classbar');
function getUserRole(){
var store = Ext.getStore('UserStore');
store.load();
var userRole = store.last();
return userRole.data.roledescription;
}
if (getUserRole() != app.UserRoles.ADMIN){
for(var i = 0; i < classes.length; i++){
var data = classes[i].data;
var render = Ext.DomQuery.select('.classbar .select-' + data.id)[0];
var allbutren = Ext.DomQuery.select('.classbar .select-all')[0];
var button = new Ext.Button({
ui: 'chalk-light',
text: data.name,
renderTo: render,
name: data.name,
clazzId: data.id,
cls: 'class-button',
action: 'filterFeed',
html: '<img width="45" style="margin-top: -45px;" src="https://www.app.com/Course/GetIcon?courseInfoId=' + data.courseinfoid + '"/>' +
'<div class="classnamer">' + data.name + '</div>'
});
var allbutton = new Ext.Button({
ui: 'chalk-light',
text: 'All',
renderTo: allbutren,
name: 'allname',
clazzId: 'someId',
cls: 'class-button x-button-pressing',
action: 'filterFeed',
html: '<img width="45" style="margin-top: -45px;" src="https://www.app.com/Content/images/common/course-icons/all.png"/>' +
'<div class="classnamer">All</div>'
});
}
} else{
bar.hide();
}
}
}
}
,
{
cls : 'feedbar',
itemId : 'something',
docked : 'top',
xtype : 'panel',
items:[
{
xtype: 'panel',
html:'Feed',
cls: 'feedTitle'
},
{
xtype: 'button',
action: 'feedAll',
text: 'All',
cls: 'allBtn',
ui: 'chalk-light'
//see feedController.all()
},
{
xtype: 'button',
action: 'starred',
cls: 'impBtn',
ui: 'chalk-light',
html: '<img src="img/not-starred.png"> Important'
}
]
}]
);
}
}
}
});