No example for collectionGroup for Firestore V9 (modular) in the documentation #244

Delphn · 2021-10-02T17:09:04Z

I'm upgrading a Firebase app to version 9, and I can't find in the documentation how collectionGroup is used.

This is an example from the current documentation

And here is the corresponding code snippet:

snippets-web/firestore/test.firestore.js

Lines 1089 to 1094 in 1e8f41c

    

        
          
           var
 museums
 =
 db
.
collectionGroup
(
'landmarks'
)
.
where
(
'type'
,
 '=='
,
 'museum'
)
;
 
        

          
           museums
.
get
(
)
.
then
(
(
querySnapshot
)
 =>
 {
 
        

          
               querySnapshot
.
forEach
(
(
doc
)
 =>
 {
 
        

          
                   console
.
log
(
doc
.
id
,
 ' => '
,
 doc
.
data
(
)
)
;
 
        

          
               }
)
;
 
        

          
           }
)
;
 
        

  

From the code snippets here on GitHub it seems like it has been already implemented, yet it doesn't appear in the documentation.

snippets-web/snippets/firestore-next/test-firestore/fs_collection_group_query.js

Lines 8 to 14 in 1e8f41c

    

        
          
           import
 {
 collectionGroup
,
 query
,
 where
,
 getDocs
 }
 from
 "firebase/firestore"
;
   
        

          
            
        

          
           const
 museums
 =
 query
(
collectionGroup
(
db
,
 'landmarks'
)
,
 where
(
'type'
,
 '=='
,
 'museum'
)
)
;
 
        

          
           const
 querySnapshot
 =
 await
 getDocs
(
museums
)
;
 
        

          
           querySnapshot
.
forEach
(
(
doc
)
 =>
 {
 
        

          
               console
.
log
(
doc
.
id
,
 ' => '
,
 doc
.
data
(
)
)
;
 
        

          
           }
)
;
 
        

  

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No example for collectionGroup for Firestore V9 (modular) in the documentation #244

No example for collectionGroup for Firestore V9 (modular) in the documentation #244

Delphn commented Oct 2, 2021

No example for collectionGroup for Firestore V9 (modular) in the documentation #244

No example for collectionGroup for Firestore V9 (modular) in the documentation #244

Comments

Delphn commented Oct 2, 2021