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could the result of a server query be mutable? #370

ppcano opened this Issue · 5 comments

4 participants


I am facing many times with this issue, which seems to be a common situation when client request to paginated/offset resources.

    var content = this.get('content');
    models =, {limit: 3, offset: 3, xxxxxx});
    models.addObserver('isLoaded', function() {
        if (!!content) {
        } else {
           this.set('content', models);

A solution/workaround is to create a mutable array as documented on this stackoverflow post.

I don't know if it could be possible/suitable to improve the result query to be mutable.


You should do pagination with an ArrayController not directly on an AdapterPopulatedRecordArray.

@wagenet wagenet closed this

If @tchak's suggestion doesn't work for you, let us know.


I'm sorry, I'm not sure what you mean with your suggestion? Likewise, I'm trying to append some objects to an ArrayController that was created with data from Ember Data and I get the same error when I call addObjects:

The linked stackoverflow post above gets around this by having a member variable shadow the "real" content attribute, which feels like it should be an unnecessary hack.


@ppcano, JohnEmhoff the issue is that the results of a find is not a standard array. If you want to manipulate it as a standard array, you should use toArray() once the initial results are loaded.


Thanks, that's a little cleaner.

@benkonrath benkonrath referenced this issue in onepercentclub/onepercentclub-site

Properly add wallpost to top of list. #162

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