I'm trying to get firestore collections based on an array list.
I need to get collection 'items' based on the array 'favourites' inside collection 'users'.
Below are the two images of my database.
1 Answers
You can do the following:
onPressed(){
Firestore.instance.collection("users").getDocuments().then((querySnapshot){
querySnapshot.documents.forEach((element){
List value = element.data["favourites"];
Firestore.instance.collection("items").document(value[0]).get().then((value){
print(value.data);
});
});
});
}
Query the collection users -> get the array favourites -> use the value inside the array in the document() method.
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