Do not cache empty responses

[JobaDiniz]

How can I tell angular cache to not cache empty responses?

[jmdobry]

Example with DS.find:

DS.find('post', 5, { cacheResponse: false}).then(function (post) { if (!angular.isEmpty(post)) { DS.inject('post', post); // do something with post } else { // do something with empty response } });

Is your API returning an empty response when angular-data is expecting a 404?

On Tue, Jun 3, 2014 at 7:04 AM, Joberto Diniz notifications@github.com wrote:

How can I tell angular cache to not cache empty responses?

— Reply to this email directly or view it on GitHub https://github.com/jmdobry/angular-cache/issues/113.

Jason Dobry 801.369.6248 jason.dobry@gmail.com

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[JobaDiniz]

I'm not using the new DS version. I liked the simplicity of the old angular-cache.

var contentCache = $angularCacheFactory('contentCache', {
        maxAge: 2 * 60 * 1000,
        onExpire: function (key, value) {
            $http.get(key).success(function (data) {
                contentCache.put(key, data);
            });
        }
    });

$http.get(url, {cache:contentCache}).success(function (data, status) {
                deferred.resolve(data);
            }).error(function (data, status) {
                deferred.reject(data, status);
            })

Sometimes, the response will be empty because I pass a query which returns no result. But I'd like to not cache it, because caching empty results is not a good practice.. may lead to some bugs real hard to catch later on.

[jmdobry]

To get more control over what gets cached and what doesn't, you would need to not pass the cache option to the $http request, but instead manually decide whether to cache the item as you inspect the response.

The first and second examples found here are what you're doing now, the third example shows how you can have more control over what gets cached.

[jmdobry]

p.s. This question is probably better suited for the mailing list.