How do you get Firebase collection items along with their keys












0















My function returns items that do not have keys.



getByYear(yr) {
return this.db
.collection('contracts', ref => ref.orderBy('amount', 'desc').where('financialYear', '==', yr))
.valueChanges();
}


How do i include item keys in the returned set when using collections with angularfire2. All solutions i have seen seem to work with lists and not collections.










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  • 1





    If your preferred method of getting document data from Firestore involves eliminating the document IDs from the query results, you'll need to put the id of the document into the document itself as a new field. Or, you'll have to query in such a way that you get an entire DocumentSnapshot object to deal with (which has an id property).

    – Doug Stevenson
    Jan 1 at 20:45


















0















My function returns items that do not have keys.



getByYear(yr) {
return this.db
.collection('contracts', ref => ref.orderBy('amount', 'desc').where('financialYear', '==', yr))
.valueChanges();
}


How do i include item keys in the returned set when using collections with angularfire2. All solutions i have seen seem to work with lists and not collections.










share|improve this question




















  • 1





    If your preferred method of getting document data from Firestore involves eliminating the document IDs from the query results, you'll need to put the id of the document into the document itself as a new field. Or, you'll have to query in such a way that you get an entire DocumentSnapshot object to deal with (which has an id property).

    – Doug Stevenson
    Jan 1 at 20:45
















0












0








0








My function returns items that do not have keys.



getByYear(yr) {
return this.db
.collection('contracts', ref => ref.orderBy('amount', 'desc').where('financialYear', '==', yr))
.valueChanges();
}


How do i include item keys in the returned set when using collections with angularfire2. All solutions i have seen seem to work with lists and not collections.










share|improve this question
















My function returns items that do not have keys.



getByYear(yr) {
return this.db
.collection('contracts', ref => ref.orderBy('amount', 'desc').where('financialYear', '==', yr))
.valueChanges();
}


How do i include item keys in the returned set when using collections with angularfire2. All solutions i have seen seem to work with lists and not collections.







angular firebase google-cloud-firestore angularfire2






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share|improve this question













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edited Jan 1 at 20:44









Doug Stevenson

80.2k996114




80.2k996114










asked Jan 1 at 20:25









Cengkuru MichaelCengkuru Michael

2,3011520




2,3011520








  • 1





    If your preferred method of getting document data from Firestore involves eliminating the document IDs from the query results, you'll need to put the id of the document into the document itself as a new field. Or, you'll have to query in such a way that you get an entire DocumentSnapshot object to deal with (which has an id property).

    – Doug Stevenson
    Jan 1 at 20:45
















  • 1





    If your preferred method of getting document data from Firestore involves eliminating the document IDs from the query results, you'll need to put the id of the document into the document itself as a new field. Or, you'll have to query in such a way that you get an entire DocumentSnapshot object to deal with (which has an id property).

    – Doug Stevenson
    Jan 1 at 20:45










1




1





If your preferred method of getting document data from Firestore involves eliminating the document IDs from the query results, you'll need to put the id of the document into the document itself as a new field. Or, you'll have to query in such a way that you get an entire DocumentSnapshot object to deal with (which has an id property).

– Doug Stevenson
Jan 1 at 20:45







If your preferred method of getting document data from Firestore involves eliminating the document IDs from the query results, you'll need to put the id of the document into the document itself as a new field. Or, you'll have to query in such a way that you get an entire DocumentSnapshot object to deal with (which has an id property).

– Doug Stevenson
Jan 1 at 20:45














1 Answer
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From the AngularFire documentation for valueChanges:




When would you not use it?



When you need a more complex data structure than an array or you need the id of each document to use data manipulation methods. This method assumes you either are saving the id to the document data or using a "readonly" approach.




Since you need the ID of the documents, either use `documentChanges or persist the ID into the document too.






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    1 Answer
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    1 Answer
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    active

    oldest

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    active

    oldest

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    1














    From the AngularFire documentation for valueChanges:




    When would you not use it?



    When you need a more complex data structure than an array or you need the id of each document to use data manipulation methods. This method assumes you either are saving the id to the document data or using a "readonly" approach.




    Since you need the ID of the documents, either use `documentChanges or persist the ID into the document too.






    share|improve this answer




























      1














      From the AngularFire documentation for valueChanges:




      When would you not use it?



      When you need a more complex data structure than an array or you need the id of each document to use data manipulation methods. This method assumes you either are saving the id to the document data or using a "readonly" approach.




      Since you need the ID of the documents, either use `documentChanges or persist the ID into the document too.






      share|improve this answer


























        1












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        1







        From the AngularFire documentation for valueChanges:




        When would you not use it?



        When you need a more complex data structure than an array or you need the id of each document to use data manipulation methods. This method assumes you either are saving the id to the document data or using a "readonly" approach.




        Since you need the ID of the documents, either use `documentChanges or persist the ID into the document too.






        share|improve this answer













        From the AngularFire documentation for valueChanges:




        When would you not use it?



        When you need a more complex data structure than an array or you need the id of each document to use data manipulation methods. This method assumes you either are saving the id to the document data or using a "readonly" approach.




        Since you need the ID of the documents, either use `documentChanges or persist the ID into the document too.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Jan 1 at 22:19









        Frank van PuffelenFrank van Puffelen

        241k29384412




        241k29384412
































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