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var resultsArray = [[String:String]]() | |
func searchBarSearchButtonClicked(_ searchBar: UISearchBar) { | |
if let searchText = searchBar.text?.lowercased(), searchText != "" { | |
resultsArray.removeAll() | |
queryText(searchText, inField: "username") | |
queryText(searchText, inField: "email") | |
} else { | |
let alert = UIAlertController(title: "Error", message: "Please enter a username.", preferredStyle: .alert) | |
alert.addAction(UIAlertAction(title: "Ok", style: .default, handler: nil)) | |
present(alert, animated: true, completion: nil) | |
} | |
} | |
func queryText(_ text: String, inField child: String) { | |
userRef.queryOrdered(byChild: child) | |
.queryStarting(atValue: text) | |
.queryEnding(atValue: text) | |
.observeSingleEvent(of: .value) { [weak self] (snapshot) in | |
for case let item as DataSnapshot in snapshot.children { | |
//Don't show the current user in search results | |
if self?.currentUser?.uid == item.key { | |
continue | |
} | |
if var itemData = item.value as? [String:String] { | |
itemData["uid"] = item.key | |
self?.resultsArray.append(itemData) | |
} | |
} | |
self?.tableView.reloadData() | |
} | |
} |
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