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VisualizaçõesFirestore update nested objects
I'm trying to add a message object in a nested map. As you can see in the screenshot below, I want to go in "us" then "0" then "messages" to add my object.
I have used the following script :
firestore.collection("salon").document(idSalon).update( "us.0.messages",message );
When I use it, it just overwrites everything as you can see.
Can someone help me, please?
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Juan Pablo Isaza
1 Respostas
Responde à pergunta0
As I see in your screenshot, the "us" field is of type array. To be able to update an array, you should use arrayUnion and not a simple field update. For that I recommend you check the official documentation regarding update elements in a Firestore array.
I have also written an article called:
That I think it will help you understand this topic better.
·
Juan Pablo Isaza
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