无法从多个集合 firebase 中检索数据

Question

Hope you're in good health. I have a problem.

 export function fetchListing() { return function (dispatch) { dispatch(fetchListingRequest()); //Getting Listing where status is in_review firebase.firestore().collection("listings").where("status", "==", "in_review").onSnapshot( snapshot => { const data = []; snapshot.docs.forEach(doc => { const temp = {}; // Getting address of business firebase.firestore().collection("users").doc(doc.data().business_id).get().then(users => { temp["address"] = users.data().address; }).catch(error => { dispatch(fetchListingFailed(error)); }); temp["title"] = doc.data().title; temp["description"] = doc.data().description; temp["listing_file"] = doc.data().listing_file; data.push([doc.id, temp]); }); dispatch(fetchListingSucess(data)); }, error => { dispatch(fetchListingFailed(error)); } ); }; }

I am Unable to get address in state but when I log it It displayed in console. I am able to access address when I am retrieving it from firebase and also in reducer I am also getting address.

Answer 1

reasons can be: The hierarchy of your firestore collection or you have to know that in js you can't affect the data to a variable that is in the main prog just when it is in a one level functions for exemple here you can do this

locale = this ;

than you can use all the variables in two other levels