Acquiring offspring records from Firebase by employing distinct, auto-generated identifiers

Here's the scenario:

The data on our firebase is structured in the following way

https://i.stack.imgur.com/RsYo5.jpg

The image above illustrates a sample database where "post1" and "post2" under the "Posts" node are randomly generated keys like "YyhsyyHyzhh-Ke", etc. The same applies to the comments, with "comment1" and "comment2" being randomly generated keys as well.

My issue arises when I try to fetch all the posts along with their related comments from firebase. Although there is a "comments" node under "post1" that contains keys for the corresponding comments, I am unable to retrieve those keys in order to access the text of each comment.

Please refer to the code snippet below:

appMainModule.controller('GetCtrl', ['$scope', '$firebase', function ($scope, $firebase) {
    var firebaseObj = new Firebase("FirebaseURL/Posts");
    var sync = $firebase(firebaseObj);
    $scope.articles = sync.$asArray();

    $scope.articles.$loaded(function (data) {
        var mainVar;
        for (var i = 0; i < data.length; i++) {
            mainVar = data[i];
            var commentsWithIds = mainVar.Comments;
            // How can I fetch the keys associated with the data in "commentsWithIds" since these keys are randomly generated?
        }
    });
}]

I want to obtain the keys for the comments so that I can create URLs using the format "new Firebase("FirebaseURL/Comments"+CommentsAutoGeneratedKey)".

Answer №1

If I've grasped your question correctly, you have the option to utilize the Object.keys() method:

let feedback = {  
  "feedback1":{  
    "text":"This is the initial feedback"
  },
  "feedback2":{  
    "text":"Here comes a second piece of feedback"
  },
  "feedback3":{  
    "text":"Prepare for the third feedback"
  }
};

console.log(Object.keys(feedback));

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