EmberJS sort Array Controller of Objects
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28-10-2019 - |
题
Trying to figure this concept out. If you console.log this.get("content") before and after the sort, everything seems like it worked, but when it displays to the screen it gets funky. I think the issue is with Handlebars. When it "sorts" it adds a duplicate fourth record and sticks it at the top. You can see the problem in action here:
http://jsfiddle.net/skinneejoe/Qpkz5/78/ (Click the 'Sort by Age' text a couple times to resort the records and you'll see the issues)
Am I doing something wrong, is there a better way, or is this a bug? If it's a bug is there a good workaround?
Here's the full code:
index.html
<script type="text/x-handlebars">
{{#view App.SortView}}Sort by Age{{/view}}<br/>
{{#each App.userController}}
{{#view App.RecordView contentBinding="this"}}
{{content.name}} - {{content.age}}
{{/view}}
{{/each}}
</script>
app.js
window.App = Ember.Application.create();
App.userController = Ember.ArrayController.create({
content: [
Ember.Object.create({ name:"Jeff", age:24 }),
Ember.Object.create({ name:"Mark", age:32 }),
Ember.Object.create({ name:"Jim", age:12 })
],
sort:"desc",
sortContent:function() {
if (this.get("sort") == "desc") {
this.set("sort", "asc");
} else {
this.set("sort","desc")
}
if (this.get("sort") == "asc") {
var sortedContent = this.get("content").sort( function(a,b){
return a.get("age") - b.get("age");
})
} else {
var sortedContent = this.get("content").sort( function(a,b){
return b.get("age") - a.get("age");
})
}
this.set("content", []);
this.set("content",sortedContent)
}
})
App.RecordView = Ember.View.extend({})
App.SortView = Ember.View.extend({
click: function() {
App.userController.sortContent("poId")
}
})
解决方案
I'm not seeing this bug in Safari, Chrome or Firefox on OS X, so I assume it's a IE issue.
Sounds a lot like this reported Ember bug, which got fixed 11 days ago. Try upgrading to ember-latest and see if that fixes it.