CODEWITHSUNDEEP
react-nativegoogle-cloud-firestore
user8395584
user8395584

Reputation:

Update query using Firestore in react native

I Want to preform and update query using Firestore. i know how to work with it but not completely.

I have a flatlist which presenting data and an a text with touchable opacity onPress that will create a new Firestore collection and set the flatList to Firestore.

What is my goal? : 1.I want to check if there is any data in the collection, if there is a data, i want to update it without overwrite the previous data depending on the current user ID.

My current query code:

   const handleFBAll = () => {
      // const businessUser = snapshot.docs[0].data();
      const businessIde = currentBusinessUid;
      console.log("ID : ", businessIde);
      firebase.firestore().collection("users").doc(businessIde).collection("pending-sales").doc(currentUser.uid).set({servicesMaxMin})
    }

now i want to update the doc of the currentUser with additional data if there is one

Suggetions?

Upvotes: 1

Views: 1064

Answers (1)

nishkaush
nishkaush

Reputation: 1548

You can use merge prop with set and that should allow you to simplify the code a little like so:

db.collection('dogs').doc('my-id').set({
  "owner": "james"
},{merge:true})

this will add owner prop if it doesn't exist or will overwrite it.

Upvotes: 1

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