问题
I\'ve tried many examples of ng-repeat with orderBy, but I can\'t make my json work with it.
<div ng-app>
<script type=\"text/javascript\" src=\"http://code.angularjs.org/1.0.1/angular-1.0.1.js\"></script>
<div ng:controller=\"Main\">
<div ng-repeat=\"release in releases| orderBy:\'environment_id\'\">
{{release.environment_id}}
</div>
</div>
</div>
And the JSON
function Main($scope) {
$scope.releases = {
\"tvl-c-wbap001 + tvl-webapp\": {
\"timestamp\": \" 05:05:53 PM \",
\"environment_id\": \"CERT5\",
\"release_header\": \"Projects/Dev\",
\"date\": \"19 Oct\",
\"release\": \"12.11.91-1\"
},
\"tvl-c-wbap401 + tvl-webapp\": {
\"timestamp\": \" 10:07:25 AM \",
\"environment_id\": \"CERT4\",
\"release_header\": \"Future Release\",
\"date\": \"15 Oct\",
\"release\": \"485-1\"
},
\"tvl-c-wbap301 + tvl-webapp\": {
\"timestamp\": \" 07:59:48 AM \",
\"environment_id\": \"CERT3\",
\"release_header\": \"Next Release\",
\"date\": \"15 Oct\",
\"release\": \"485-1\"
},
\"tvl-c-wbap201 + tvl-webapp\": {
\"timestamp\": \" 03:34:07 AM \",
\"environment_id\": \"CERT2\",
\"release_header\": \"Next Changes\",
\"date\": \"15 Oct\",
\"release\": \"13.12.3-1\"
},
\"tvl-c-wbap101 + tvl-webapp\": {
\"timestamp\": \" 12:44:23 AM \",
\"environment_id\": \"CERT1\",
\"release_header\": \"Production Mirror\",
\"date\": \"15 Oct\",
\"release\": \"13.11.309-1\"
},
\"tvl-s-wbap002 + tvl-webapp\": {
\"timestamp\": \" 12:43:23 AM \",
\"environment_id\": \"Stage2\",
\"date\": \"15 Oct\",
\"release\": \"13.11.310-1\"
},
\"tvl-s-wbap001 + tvl-webapp\": {
\"timestamp\": \" 11:07:38 AM \",
\"environment_id\": \"Stage1\",
\"release_header\": \"Production Mirror\",
\"date\": \"11 Oct\",
\"release\": \"13.11.310-1\"
},
\"tvl-p-wbap001 + tvl-webapp\": {
\"timestamp\": \" 11:39:25 PM \",
\"environment_id\": \"Production\",
\"release_header\": \"Pilots\",
\"date\": \"14 Oct\",
\"release\": \"13.11.310-1\"
},
\"tvl-p-wbap100 + tvl-webapp\": {
\"timestamp\": \" 03:27:53 AM \",
\"environment_id\": \"Production\",
\"release_header\": \"Non Pilots\",
\"date\": \"11 Oct\",
\"release\": \"13.11.309-1\"
}
}
It doesn\'t matter what I write, I always get the same order, or I may say, no order at all.
回答1:
The orderBy only works with Arrays -- See http://docs.angularjs.org/api/ng.filter:orderBy
Also a great filter to use for Objects instead of Arrays @ Angularjs OrderBy on ng-repeat doesn't work
回答2:
As mentioned, only arrays are allowed. But to make it simple for you, you could dynamically convert the object into an array via a piping function as seen here https://gist.github.com/brev/3949705
Just declare the filter, and add it to ng-repeat :)
<div ng-app="myApp">
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.8/angular.min.js"></script>
<div ng-controller="Main">
<div ng-repeat="release in releases | object2Array | orderBy:'environment_id'">{{release.environment_id}}</div>
</div>
<script>
var app = angular.module('myApp', []).filter('object2Array', function() {
return function(input) {
var out = [];
for(i in input){
out.push(input[i]);
}
return out;
}
})
.controller('Main',function ($scope) {
$scope.releases = {"tvl-c-wbap001 + tvl-webapp":{"timestamp":" 05:05:53 PM ","environment_id":"CERT5","release_header":"Projects/Dev","date":"19 Oct","release":"12.11.91-1"},"tvl-c-wbap401 + tvl-webapp":{"timestamp":" 10:07:25 AM ","environment_id":"CERT4","release_header":"Future Release","date":"15 Oct","release":"485-1"},"tvl-c-wbap301 + tvl-webapp":{"timestamp":" 07:59:48 AM ","environment_id":"CERT3","release_header":"Next Release","date":"15 Oct","release":"485-1"},"tvl-c-wbap201 + tvl-webapp":{"timestamp":" 03:34:07 AM ","environment_id":"CERT2","release_header":"Next Changes","date":"15 Oct","release":"13.12.3-1"},"tvl-c-wbap101 + tvl-webapp":{"timestamp":" 12:44:23 AM ","environment_id":"CERT1","release_header":"Production Mirror","date":"15 Oct","release":"13.11.309-1"},"tvl-s-wbap002 + tvl-webapp":{"timestamp":" 12:43:23 AM ","environment_id":"Stage2","date":"15 Oct","release":"13.11.310-1"},"tvl-s-wbap001 + tvl-webapp":{"timestamp":" 11:07:38 AM ","environment_id":"Stage1","release_header":"Production Mirror","date":"11 Oct","release":"13.11.310-1"},"tvl-p-wbap001 + tvl-webapp":{"timestamp":" 11:39:25 PM ","environment_id":"Production","release_header":"Pilots","date":"14 Oct","release":"13.11.310-1"},"tvl-p-wbap100 + tvl-webapp":{"timestamp":" 03:27:53 AM ","environment_id":"Production","release_header":"Non Pilots","date":"11 Oct","release":"13.11.309-1"}}
});
</script>
回答3:
the built-in orderBy filter will no longer work when iterating an object. It’s ignored due to the way that object fields are stored. You need create a custom filter
yourApp.filter('orderObjectBy', function() {
return function(items, field, reverse) {
var filtered = [];
angular.forEach(items, function(item) {
filtered.push(item);
});
filtered.sort(function (a, b) {
return (a[field] > b[field] ? 1 : -1);
});
if(reverse) filtered.reverse();
return filtered;
};
});
<ul>
<li ng-repeat="item in items | orderObjectBy:'color':true">{{ item.color }}</li>
</ul>
回答4:
in Eike Thies's response above, if we use underscore.js, filter could be simplified to :
var app = angular.module('myApp', []).filter('object2Array', function() {
return function(input) {
return _.toArray(input);
}
});
回答5:
Here's a version of @Julian Mosquera's code that also supports sorting by object key:
yourApp.filter('orderObjectBy', function () {
return function (items, field, reverse) {
// Build array
var filtered = [];
for (var key in items) {
if (field === 'key')
filtered.push(key);
else
filtered.push(items[key]);
}
// Sort array
filtered.sort(function (a, b) {
if (field === 'key')
return (a > b ? 1 : -1);
else
return (a[field] > b[field] ? 1 : -1);
});
// Reverse array
if (reverse)
filtered.reverse();
return filtered;
};
});
回答6:
You're going to have to reformat your releases object to be an array of objects. Then you'll be able to sort them the way you're attempting.
回答7:
orderby works on arrays that contain objects with immidiate values which can be used as filters, ie
controller.images = [{favs:1,name:"something"},{favs:0,name:"something else"}];
When the above array is repeated, you may use | orderBy:'favs' to refer to that value immidiately, or use a minus in front to order descending
<div class="timeline-image" ng-repeat="image in controller.images | orderBy:'-favs'">
<img ng-src="{{ images.name }}"/>
</div>
来源：https://stackoverflow.com/questions/19387552/angular-cant-make-ng-repeat-orderby-work