CODEWITHSUNDEEP
iosfirebase
vype
vype

Reputation: 221

Retrieving information from firebase

Im trying to retrieve information from my firebase. Heres what the data looks like.

Every time i run this i receive null in the log.

Firebase *ref = [[Firebase alloc] initWithUrl: @"https://sizzling-inferno-255.firebaseio.com/"];
[ref observeEventType:FEventTypeChildAdded withBlock:^(FDataSnapshot *snapshot) {
    NSLog(@"%@", snapshot.value[@"date_of_birth"]);
    NSLog(@"%@", snapshot.value[@"full_name"]);
}];

I want the app to check if the name of the table is info and if so load the date of birth and full name. How can i do this?

Upvotes: 1

Views: 81

Answers (3)

NightFury
NightFury

Reputation: 13546

You are observing changes to changes in database, instead of fetching records. Moreover, you haven't defined reference url users against which you want to fetch data. Try this:

Firebase *ref = [[Firebase alloc] initWithUrl: @"https://sizzling-inferno-255.firebaseio.com/"];

//Refer to users entity
Firebase *usersRef = [ref childByAppendingPath: @"users"];

// Read data and react to changes
[usersRef observeEventType:FEventTypeValue withBlock:^(FDataSnapshot *snapshot) {
  NSLog(@"%@ -> %@", snapshot.key, snapshot.value);
}];

Hope it helps!

Upvotes: 0

Michael Williams
Michael Williams

Reputation: 1412

You need to also add [ref child:@"users/info"] just before observeEventType child because you are just accessing the child one step below the root which is just "users" you aren't actually getting down to date of birth and full name.

Upvotes: 0

ArunGJ
ArunGJ

Reputation: 2683

The root object of your data is users. You have to iterate through the data to get to info. Use can code something like below.

NSDictionary *info = snapshot.value[@"info"];
NSString *dob = info[@"date_of_birth"];

Upvotes: 1

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