How to extract street, city, etc. from GMSPlace Address Components - ios

I'm using Google Places API for iOS and can successfully retrieve nearby places and present the address as a string. What I'm trying to do is extract address components such as city to store in a database.
The documentation indicates a GMSPlace has an addressComponents property (an array), but I can't seem to figure how to use this property.
The code below provides sets the entire address to the text of a label, but I can't get beyond that:
Edit ---- added code that shows how I'm trying to access Address Components
venueLabel.isHidden = false
venueLabel.text = selectedPlace?.name
addressLabel.isHidden = false
addressLabel.text = selectedPlace?.formattedAddress
let addressComponents = selectedPlace?.addressComponents
for component in addressComponents! {
let city = component["city"] //Error Type GMSPaceAddressComponent has no subscript members
print(city)
}

A safe Swift 4.2 solution:
let name = place.addressComponents?.first(where: { $0.type == "city" })?.name
selectedPlace.addressComponents is a array of GMSAddressComponent which have 2 properties type and name.
In you case it will be like
for component in addressComponents! {
if component.type == "city" {
print(component.name)
}
}
GMSAddressComponent is a class not a dictionary or array that's you are getting this error.
Additional component types can be referred from the link.

Swift 4
var keys = [String]()
place.addressComponents?.forEach{keys.append($0.type)}
var values = [String]()
place.addressComponents?.forEach({ (component) in
keys.forEach{ component.type == $0 ? values.append(component.name): nil}
})
print(values)

For the latest Google Places API (July 2019) this is what could help you.
Actually, Google now putting a couple of types for each element. So the "type" is now deprecated and "types" is new filed.
You can do something like this:
for addressComponent in (self.mySelectedPlace?.addressComponents)! {
for type in (addressComponent.types){
switch(type){
case "country":
var country = addressComponent.name
case "postal_code":
var postCode = addressComponent.name
default:
break
}
}
}

It's working in Swift 5 and iOS 13.3
1. Create a function for showing GMSAutocompleteViewController
func googlePlacesSearchVC() {
let acController = GMSAutocompleteViewController()
acController.delegate = self
// Specify the place data types to return.
let fields: GMSPlaceField = GMSPlaceField(rawValue: UInt(GMSPlaceField.name.rawValue) |
UInt(GMSPlaceField.formattedAddress.rawValue) |
UInt(GMSPlaceField.addressComponents.rawValue))!
acController.placeFields = fields
// Specify a filter.
let filter = GMSAutocompleteFilter()
filter.country = "IN"
acController.autocompleteFilter = filter
acController.secondaryTextColor = .darkGray
acController.primaryTextColor = .lightGray
acController.primaryTextHighlightColor = .black
acController.tableCellBackgroundColor = .whiteThree
acController.tableCellSeparatorColor = .lightGray
// Display the autocomplete view controller.
present(acController, animated: true) {
let views = acController.view.subviews
let subviewsOfSubview = views.first!.subviews
let subOfNavTransitionView = subviewsOfSubview[1].subviews
let subOfContentView = subOfNavTransitionView[1].subviews
let searchBar = subOfContentView[0] as! UISearchBar
searchBar.searchTextField.placeholder = "places_picker_hint_add_address".localized
searchBar.searchBarStyle = .minimal
searchBar.searchTextField.font = UIFont.screenTitle16Pt
searchBar.searchTextField.backgroundColor = UIColor.white
searchBar.searchTextField.leftView?.tintColor = .darkGray
searchBar.delegate?.searchBar?(searchBar, textDidChange: "")
}
}
2. Call that function where ever you need, for ex:-
override func viewDidLoad() {
super.viewDidLoad()
googlePlacesSearchVC()
}
3. Call GMSAutoCompleteViewControllerDelegates Methods.
Here will get all details like Street, City, etc. from GMSPlace Address Components
extension ViewController {
// Handle the user's selection.
func viewController(_ viewController: GMSAutocompleteViewController, didAutocompleteWith place: GMSPlace) {
// Show HouseAndFlat
if place.name?.description != nil {
yourTxtField.text = place.name?.description ?? ""
}
// Show latitude
if place.coordinate.latitude.description.count != 0 {
var latitude = place.coordinate.latitude
}
// Show longitude
if place.coordinate.longitude.description.count != 0 {
selectedLongitude = place.coordinate.longitude
}
// Show AddressComponents
if place.addressComponents != nil {
for addressComponent in (place.addressComponents)! {
for type in (addressComponent.types){
switch(type){
case "sublocality_level_2":
yourTxtField.text = addressComponent.name
case "sublocality_level_1":
yourTxtField.text = addressComponent.name
case "administrative_area_level_2":
yourTxtField.text = addressComponent.name
case "administrative_area_level_1":
yourTxtField.text = addressComponent.name
case "country":
yourTxtField.text = addressComponent.name
case "postal_code":
yourTxtField.text = addressComponent.name
default:
break
}
}
}
}
dismiss(animated: true, completion: nil)
}
func viewController(_ viewController: GMSAutocompleteViewController, didFailAutocompleteWithError error: Error) {
// TODO: handle the error.
print("Error: ", error.localizedDescription)
}
// User canceled the operation.
func wasCancelled(_ viewController: GMSAutocompleteViewController) {
dismiss(animated: true, completion: nil)
}
}
I have found an answer from this link

I am using this extension:
extension Array where Element == GMSAddressComponent {
func valueFor(placeType: String, shortName: Bool = false) -> String? {
// bug in the google or apple framework. This cast must stay.
// Withou it crashing.
guard let array = self as? NSArray else { return nil }
let result = array
.compactMap { $0 as? GMSAddressComponent }
.first(where: {
$0.types
.first(where: { $0 == placeType }) == placeType
})
return shortName ? result?.shortName : result?.name
}
}
Usage:
let place: GMSPlace
// ...
place.addressComponents?.valueFor(placeType: kGMSPlaceTypeRoute, shortName: true)

I will extend #Ramis answer, in any case you want to check for multiple types if one of them exist, e.x
addressComponents?.valueFor(placeTypes: kGMSPlaceTypePostalTown, kGMSPlaceTypeLocality)
implementation
extension Array where Element == GMSAddressComponent {
func valueFor(placeTypes: String..., shortName: Bool = false) -> String? {
let array = self as NSArray
let result = array
.compactMap { $0 as? GMSAddressComponent }
.first(where: {
placeTypes.contains($0.types.first(where: { placeTypes.contains($0) }) ?? "")
})
return shortName ? result?.shortName : result?.name
}
}

I could not find this anywhere for Objective-C, for those who follow behind me:
for (int i = 0; i < [place.addressComponents count]; i++)
{
NSLog(#"name %# = type %#", place.addressComponents[i].name, place.addressComponents[i].type);
}

for ( GMSAddressComponent * component in place.addressComponents) {
if ( [component.type isEqual: #"locality"] )
{
NSLog(#"Current city %# ", component.name);
}
}

var keys = [String]()
place.addressComponents?.forEach{keys.append($0.type)}
var values = [String]()
place.addressComponents?.forEach({ (component) in
keys.forEach{ component.type == $0 ? values.append(component.name): nil}
print("All component type \(component.type)")
if component.type == "locality"{
print("This is city name \(component.name)")
}
})
print(values)

I found this, I hope I help you
let arrays : NSArray = place.addressComponents! as NSArray
for i in 0..<arrays.count {
let dics : GMSAddressComponent = arrays[i] as! GMSAddressComponent
let str : NSString = dics.type as NSString
if (str == "country") {
print("Country: \(dics.name)")
self.pais = dics.name
}
else if (str == "administrative_area_level_2") {
print("City: \(dics.name)")
self.ciudad = dics.name
}

print("City: (String(describing: place.addressComponents?.first(where: {$0.type == "locality"})?.name))")
print("Postal Code: (String(describing: place.addressComponents?.first(where: {$0.type == "postal_code"})?.name))")
print("State: (String(describing: place.addressComponents?.first(where: {$0.type == "administrative_area_level_1"})?.name))"
Use this description for work like this.
https://developers.google.com/maps/documentation/places/ios-sdk/place-data-fields

Related

How to fix memory issues given by Instrument tools in Swift?

I have memory issues, especially for the error
XPC connection interrupted
The screen is freezing for a few seconds..
So, I've been learning how to use the Instruments tools and try to fix this error. However, I've been trying to find the error in my code and it's apparently not the fault of my code but maybe the libraries?
As a result of this test, I've got some warnings (the purple ones):
Memory Issues (3 leaked types):
- 1 instance of _DateStorage leaked (0x10b1eb060)
- 1 instance of OS_dispatch_data leaked (0x10b0b1ac0)
- 1 32-byte malloc block leaked (x10b1eb040)
Could you tell me how to fix these warnings, knowing there is no backtrace available? Or how could I find somewhere that could tell me to fix those?
EDIT:
Thanks to Instrument tools, I found the function that caused the problem! So, I don't know if it is really about memory or Idk but here's the function!
The accurate and useful error I get is : "Closure #1 in closure #1 in MessagesTableViewController.getLastMessages"
I found here What is a closure #1 error in swift?, the error is probably caused by forced optional types. So, I am going to try to remove those.
func getLastMessages(cell: ContactMessageTableViewCell, index: IndexPath) {
// first, we get the total number of messages in chatRoom
var numberOfMessagesInChatRoom = 0
let previousCellArray = self.tableView.visibleCells as! [ContactMessageTableViewCell]
var index1 = 0
var messages = [JSQMessage]()
var sortedMessages = [JSQMessage]()
var messagesSortedByChatRooms = [String: [JSQMessage]]()
var doesHaveMessagesCount = false
var doesHaveSortedMessagesCount = false
let firstQuery = Constants.refs.databaseChats.queryOrderedByKey()
_ = firstQuery.observe(.childAdded, with: { [weak self] snapshot in
if let data = snapshot.value as? [String: String],
let id = data["sender_id"],
let name = data["name"],
let text = data["text"],
let chatRoom = data["chatRoom"],
!text.isEmpty
{
if let message = JSQMessage(senderId: id, displayName: name, text: text)
{
messages.append(message)
var arrayVariable = [JSQMessage]()
// we wanna get all messages and put it in the array corresponding to the chat room key
if messagesSortedByChatRooms[chatRoom] != nil { // if there is already the chatRoom key in dictionary
if let message1 = messagesSortedByChatRooms[chatRoom] {
arrayVariable = message1
}
arrayVariable.append(message)
messagesSortedByChatRooms[chatRoom] = arrayVariable
} else { // if there isn't the chatRoom key
arrayVariable.append(message)
messagesSortedByChatRooms[chatRoom] = arrayVariable
}
}
}
DispatchQueue.main.async {
// we have to sort messages by date
for (chatRoom, messagesArray) in messagesSortedByChatRooms {
var loopIndex = 0
var lastMessage: JSQMessage?
var array = [JSQMessage]()
for message in messagesArray { // we run through the messages array
array.removeAll()
loopIndex += 1
if loopIndex != 1 {
if message.date > lastMessage!.date {
array.append(message)
messagesSortedByChatRooms[chatRoom] = array
} else {
array.append(lastMessage!)
messagesSortedByChatRooms[chatRoom] = array
}
} else {
lastMessage = message
if messagesArray.count == 1 {
array.append(message)
messagesSortedByChatRooms[chatRoom] = array
}
}
}
}
if !doesHaveMessagesCount {
//doesHaveMessagesCount = true
// we have the number of chats in database
let secondQuery = Constants.refs.databaseChats.queryOrderedByPriority()
_ = secondQuery.observe(.childAdded, with: { [ weak self] snapshot in
if let data = snapshot.value as? [String: String],
let id = data["sender_id"],
let name = data["name"],
let text = data["text"],
let chatRoom = data["chatRoom"],
!text.isEmpty
{
if let message = JSQMessage(senderId: id, displayName: name, text: text)
{
index1 += 1
if chatRoom != nil {
if let unwrappedSelf = self {
if unwrappedSelf.sortedChatRoomsArray.contains(chatRoom) {
sortedMessages.append(message)
for (chatRoomKey, messageArray) in messagesSortedByChatRooms {
unwrappedSelf.lastMessages[chatRoomKey] = messageArray[0]
}
}
}
}
if let unwrappedSelf = self {
if index1 == messages.count && chatRoom != unwrappedSelf.roomName {
sortedMessages.append(JSQMessage(senderId: id, displayName: name, text: "no message"))
}
}
}
}
DispatchQueue.main.async {
if let unwrappedSelf = self {
if !doesHaveSortedMessagesCount {
//doesHaveSortedMessagesCount = true
if unwrappedSelf.sortedChatRoomsArray.indices.contains(index.row) {
if unwrappedSelf.lastMessages[unwrappedSelf.sortedChatRoomsArray[index.row]] != nil {
if unwrappedSelf.lastMessagesArray.count != 0 {
let currentChatRoom = unwrappedSelf.sortedChatRoomsArray[index.row]
if unwrappedSelf.lastMessages[unwrappedSelf.sortedChatRoomsArray[index.row]]?.text != "no message" {
if UUID(uuidString: unwrappedSelf.lastMessages[unwrappedSelf.sortedChatRoomsArray[index.row]]!.text) == nil {
cell.contactLastMessageLabel.text = unwrappedSelf.lastMessages[unwrappedSelf.sortedChatRoomsArray[index.row]]?.text
} else {
cell.contactLastMessageLabel.text = "New image"
}
} else {
cell.contactLastMessageLabel.text = ""
cell.contactLastMessageLabel.font = UIFont(name:"HelveticaNeue-Light", size: 16.0)
}
if unwrappedSelf.lastMessagesArray.indices.contains(index.row) {
if unwrappedSelf.lastMessagesArray[index.row] != unwrappedSelf.lastMessages[unwrappedSelf.sortedChatRoomsArray[index.row]]?.text {
if unwrappedSelf.lastMessages[unwrappedSelf.sortedChatRoomsArray[index.row]]?.senderId != PFUser.current()?.objectId {
if unwrappedSelf.lastMessages[unwrappedSelf.sortedChatRoomsArray[index.row]]?.text != "no message" {
cell.contactLastMessageLabel.font = UIFont(name:"HelveticaNeue-Bold", size: 16.0)
}
var numberOfDuplicates = 0
for cell in previousCellArray {
if cell.contactLastMessageLabel.text == unwrappedSelf.lastMessages[unwrappedSelf.sortedChatRoomsArray[index.row]]?.text {
numberOfDuplicates += 1
}
}
if numberOfDuplicates == 0 {
if unwrappedSelf.selectedUserObjectId != "" {
unwrappedSelf.changeCellOrder(index: index.row, selectedUserObjectId: unwrappedSelf.selectedUserObjectId, lastMessage: unwrappedSelf.lastMessages[unwrappedSelf.sortedChatRoomsArray[index.row]]!.text)
} else {
unwrappedSelf.changeCellOrder(index: index.row, selectedUserObjectId: "none", lastMessage: unwrappedSelf.lastMessages[unwrappedSelf.sortedChatRoomsArray[index.row]]!.text)
}
} else {
unwrappedSelf.tableView.reloadData()
}
cell.activityIndicatorView.stopAnimating()
}
} else {
cell.contactLastMessageLabel.font = UIFont(name:"HelveticaNeue-Light", size: 16.0)
}
}
}
} else {
}
}
}
}
}
})
}
}
})
}
FINL EDIT: I put a closure inside of another closure so it created an infine loop ;)

Taking so much time when i insert 10k data in coredata ?

In my project concept i need a insert 10k data when user open the application. I integrate core data for storing data but its take 1 to 5 minutes.
Here is my code ?
func inserChatMessage(_ message: String, chatId: String, onCompletion completionHandler:((_ message: ChatMessage) -> Void)?) {
var objMessage: ChatMessage? = nil
if let obj = ChatMessage.createEntity() {
objMessage = obj
}
objMessage?.messageId = ""
objMessage?.message = message
objMessage?.chatId = chatId
objMessage?.senderId = AIUser.current.userId
objMessage?.createAt = Date()
objMessage?.updateAt = Date()
let cManager = CoreDataManager.sharedManager
cManager.saveContext()
if let completionHandler = completionHandler, let objMessage = objMessage {
completionHandler(objMessage)
}
}
Coredata is not a threadsafe. And as per your requirement you need to save large amount of data on app launch. So If you will save those data using main thread, your app will get hanged. So Instead on saving large amount of data on main thread you can save those data on background thread. Coredata is supporting multi threading concept by providing parent child context concept.
I have done same in one of my project and its working fine. Here i have attached code.
func savePersonalMessagesOnBackGroundThread(arrMessages:NSArray,responseData:#escaping () -> Void)
{
print(arrMessages)
let temporaryChatContext = NSManagedObjectContext(concurrencyType: NSManagedObjectContextConcurrencyType.privateQueueConcurrencyType)
temporaryChatContext.parent = self.managedObjectContext
temporaryChatContext.perform({() -> Void in
for i in 0..<arrMessages.count
{
let msgDic = arrMessages[i] as! NSDictionary
_ = self.saveMessageInLocalDB(dictMessage: msgDic, managedObjectContext: temporaryChatContext, onBackground: true)
if i == arrMessages.count - 1 {
do {
try temporaryChatContext.save()
runOnMainThreadWithoutDeadlock {
DLog(message: "Thred \(Thread.isMainThread)")
if(self.managedObjectContext.hasChanges)
{
self.saveContext()
responseData()
}
}
}
catch {
print(error)
}
}
}
})
}
func saveMessageInLocalDB(dictMessage:NSDictionary, managedObjectContext:NSManagedObjectContext,onBackground:Bool) -> Chat
{
var chatObj : Chat! = Chat()
var receiveId: Int32!
var flag:Bool = false
print(dictMessage)
// let predicate = NSPredicate(format:"uniqueId == %# and senderId = %d and receiverId = %d","\(dictMessage.value(forKey:keyuniqueId)!)",Int32(dictMessage.value(forKey:keysenderId) as! Int64),Int32(dictMessage.value(forKey:keyreceiverId) as! Int64))
let predicate = NSPredicate(format:"uniqueId == %#","\(dictMessage.value(forKey:keyuniqueId)!)")
let objContext = managedObjectContext
let fetchRequest = NSFetchRequest<Chat>(entityName: ENTITY_CHAT)
let disentity: NSEntityDescription = NSEntityDescription.entity(forEntityName: ENTITY_CHAT, in: objContext)!
fetchRequest.predicate = predicate
fetchRequest.entity = disentity
do{
let results = try managedObjectContext.fetch(fetchRequest as! NSFetchRequest<NSFetchRequestResult>) as! [Chat]
if(results.count > 0)
{
chatObj = results[0]
chatObj.messageId = Int32(dictMessage.value(forKey:keymessageId) as! Int64)
chatObj.dateOnly = dictMessage.value(forKey:keydateOnly) as! String?
}
else{
//receiveId = Int32(dictMessage.value(forKey:keyreceiverId) as! Int64)
//self.createNewChatObject(dictMessage: dictMessage, receiverId: receiveId, managedObjectContext: managedObjectContext)
chatObj = NSEntityDescription.insertNewObject(forEntityName:ENTITY_CHAT,into: managedObjectContext) as? Chat
if dictMessage[keymessageId] != nil {
chatObj.messageId = dictMessage.value(forKey:keymessageId) as! Int32
}
if(chatObj.message?.length != 0)
{
chatObj.message = dictMessage.value(forKey:keychatMessage) as? String
}
chatObj.messageType = Int32(dictMessage.value(forKey:keymessageType) as! Int64)
chatObj.senderId = Int32(dictMessage.value(forKey:keysenderId) as! Int64)
if(chatObj.senderId != Int32((APP_DELEGATE.loggedInUser?.id!)!))
{
let contactObj = self.getContactByContactId(contactId: Int32(dictMessage.value(forKey:keysenderId) as! Int64))
if(contactObj == nil)
{
_ = self.saveUnknownUserASContact(msgDict: dictMessage as! Dictionary<String, Any>)
}
}
chatObj.receiverId = Int32(dictMessage.value(forKey:keyreceiverId) as! Int64)
chatObj.uniqueId = dictMessage.value(forKey:keyuniqueId) as? String
chatObj.mediaName = dictMessage.value(forKey:keymediaName) as? String
print(NSDate())
if dictMessage[keycreatedDate] != nil {
let utcDate : NSDate = DateFormater.getUTCDateFromUTCString(givenDate: dictMessage.value(forKey:keycreatedDate) as! String)
chatObj.createdDate = utcDate
chatObj.updatedDate = utcDate
}
else
{
chatObj.createdDate = NSDate()
chatObj.updatedDate = NSDate()
}
if(chatObj.senderId == Int32((APP_DELEGATE.loggedInUser?.id)!))
{
chatObj.chatUser = chatObj.receiverId
}
else
{
chatObj.chatUser = chatObj.senderId
}
if dictMessage[keystatus] != nil {
chatObj.status = Bool((dictMessage.value(forKey:keystatus) as! Int64) as NSNumber)
}
switch Int(chatObj.messageType)
{
case MSG_TYPE.MSG_Text.rawValue:
chatObj.cellType = (chatObj.senderId != Int32((APP_DELEGATE.loggedInUser?.id!)!) ? Int32(CELL_TYPE.CELL_TEXT_RECEIVER.rawValue) : Int32(CELL_TYPE.CELL_TEXT_SENDER.rawValue))
case MSG_TYPE.MSG_Image.rawValue:
chatObj.cellType = (chatObj.senderId != Int32((APP_DELEGATE.loggedInUser?.id!)!) ? Int32(CELL_TYPE.CELL_IMAGE_RECEIVER.rawValue) : Int32(CELL_TYPE.CELL_IMAGE_SENDER.rawValue))
self.saveMedia(chatObj: chatObj)
default :
// chatObj.cellType = Int32(CELL_TYPE.CELL_LOAD_MORE.rawValue)
break
}
}
// deviceMake = 1;
if(!onBackground)
{
self.saveContext()
}
}
catch
{
}
return chatObj
}
Using the basic example below I can insert 10k records very quickly. The main thing that has changed here compared to your code is that I loop through and create the entities and then call save() at the very end. So you are performing one write call to the db instead of 10k. You are writing more information in that one call but it is still much quicker.
import UIKit
import CoreData
class ViewController: UIViewController {
lazy var sharedContext: NSManagedObjectContext? = {
return (UIApplication.shared.delegate as? AppDelegate)?.persistentContainer.viewContext
}()
override func viewDidLoad() {
super.viewDidLoad()
if let messages = getMessages(), messages.count > 0 {
printMessages(messages: messages)
} else {
loadChatMessages()
printMessages(messages: getMessages())
}
}
private func printMessages(messages: [Message]?) {
guard let messages = messages else { return }
for message in messages {
print(message.message)
}
}
private func getMessages() -> [Message]? {
let request = NSFetchRequest<Message>(entityName: "Message")
let messages = try? self.sharedContext?.fetch(request)
return messages ?? nil
}
private func loadChatMessages() {
var counter = 1
while counter <= 10000 {
let message = Message(entity: Message.entity(), insertInto: self.sharedContext)
message.message = "This is message number \(counter)"
message.read = false
message.timestamp = Date()
counter = counter + 1
}
do {
try self.sharedContext?.save()
} catch {
print(error)
}
}
}
As mentioned in my comment above, you can improve this further by doing it in the background (see Twinkle's answer for an example of how to switch to a background thread), you can also provide a pre-filled (pre-seeded) core data database that already contains the 10k records with your app. so it doesn't need to load this on initial load.
To do this you would fill the db locally on your dev machine and then copy it to the project bundle. On initial load you can check to see if your db filename exists in the documents folder or not. If it doesn't copy it over from the bundle and then use that DB for core data.

SQLite db file is only read at the startup of the app

I have an issue with my code that I hope maybe som of you can help me out with.
I have a "kindoff" dictionary app where the user can search for abbreviations.
The datamodel is build using an SQLite database. In my first version the data.db file was only stored locally, but since I have to make a lot of data updates I don't wanna update en whole app every time. So I have made a version that gets the data.db file from a server instead.
My problem is that the user have to quit og restart the app to get the updated version. Somehow, even if the new file is copied to the directory the sqldb class does'nt read the new file. Any idea how to make som code the gets the dbclass to read the new file, while the app is running?
Here is the code the copies the new file to the directory
func executeDownloadTask(){
if Reachability.isConnectedToNetwork() == true{
print("just Checking")
let backgroundSessionConfiguration = NSURLSessionConfiguration.backgroundSessionConfigurationWithIdentifier("backgroundSession")
backgroundSession = NSURLSession(configuration: backgroundSessionConfiguration, delegate: self,delegateQueue: NSOperationQueue.mainQueue())
let the_path:String = UpdateDbFile.findPathInDocDir("data.db");// get the path for the data.db file
UpdateDbFile.deleteFilewithPath(the_path) // delete the existing file
startDownload() // download the updated dbfile
}
}
Heres the SQLiteDb class that I use.
//
// SQLiteDB.swift
// TasksGalore
//
// Created by Fahim Farook on 12/6/14.
// Copyright (c) 2014 RookSoft Pte. Ltd. All rights reserved.
//
import Foundation
#if os(iOS)
import UIKit
#else
import AppKit
#endif
let SQLITE_DATE = SQLITE_NULL + 1
internal let SQLITE_STATIC = unsafeBitCast(0, sqlite3_destructor_type.self)
internal let SQLITE_TRANSIENT = unsafeBitCast(-1, sqlite3_destructor_type.self)
// MARK:- SQLColumn Class - Column Definition
class SQLColumn {
var value:AnyObject? = nil
var type:CInt = -1
init(value:AnyObject, type:CInt) {
// println("SQLiteDB - Initialize column with type: \(type), value: \(value)")
self.value = value
self.type = type
}
// New conversion functions
func asString()->String {
switch (type) {
case SQLITE_INTEGER, SQLITE_FLOAT:
return "\(value!)"
case SQLITE_TEXT:
return value as! String
case SQLITE_BLOB:
if let str = NSString(data:value as! NSData, encoding:NSUTF8StringEncoding) {
return str as String
} else {
return ""
}
case SQLITE_NULL:
return ""
case SQLITE_DATE:
let fmt = NSDateFormatter()
fmt.dateFormat = "yyyy-MM-dd HH:mm:ss"
return fmt.stringFromDate(value as! NSDate)
default:
return ""
}
}
func asInt()->Int {
switch (type) {
case SQLITE_INTEGER, SQLITE_FLOAT:
return value as! Int
case SQLITE_TEXT:
let str = value as! NSString
return str.integerValue
case SQLITE_BLOB:
if let str = NSString(data:value as! NSData, encoding:NSUTF8StringEncoding) {
return str.integerValue
} else {
return 0
}
case SQLITE_NULL:
return 0
case SQLITE_DATE:
return Int((value as! NSDate).timeIntervalSince1970)
default:
return 0
}
}
func asDouble()->Double {
switch (type) {
case SQLITE_INTEGER, SQLITE_FLOAT:
return value as! Double
case SQLITE_TEXT:
let str = value as! NSString
return str.doubleValue
case SQLITE_BLOB:
if let str = NSString(data:value as! NSData, encoding:NSUTF8StringEncoding) {
return str.doubleValue
} else {
return 0.0
}
case SQLITE_NULL:
return 0.0
case SQLITE_DATE:
return (value as! NSDate).timeIntervalSince1970
default:
return 0.0
}
}
func asData()->NSData? {
switch (type) {
case SQLITE_INTEGER, SQLITE_FLOAT:
let str = "\(value)" as NSString
return str.dataUsingEncoding(NSUTF8StringEncoding)
case SQLITE_TEXT:
let str = value as! NSString
return str.dataUsingEncoding(NSUTF8StringEncoding)
case SQLITE_BLOB:
return value as? NSData
case SQLITE_NULL:
return nil
case SQLITE_DATE:
let fmt = NSDateFormatter()
fmt.dateFormat = "yyyy-MM-dd HH:mm:ss"
let str = fmt.stringFromDate(value as! NSDate)
return str.dataUsingEncoding(NSUTF8StringEncoding)
default:
return nil
}
}
func asDate()->NSDate? {
switch (type) {
case SQLITE_INTEGER, SQLITE_FLOAT:
let tm = value as! Double
return NSDate(timeIntervalSince1970:tm)
case SQLITE_TEXT:
let fmt = NSDateFormatter()
fmt.dateFormat = "yyyy-MM-dd HH:mm:ss"
return fmt.dateFromString(value as! String)
case SQLITE_BLOB:
if let str = NSString(data:value as! NSData, encoding:NSUTF8StringEncoding) {
let fmt = NSDateFormatter()
fmt.dateFormat = "yyyy-MM-dd HH:mm:ss"
return fmt.dateFromString(str as String)
} else {
return nil
}
case SQLITE_NULL:
return nil
case SQLITE_DATE:
return value as? NSDate
default:
return nil
}
}
func description()->String {
return "Type: \(type), Value: \(value)"
}
}
// MARK:- SQLRow Class - Row Definition
class SQLRow {
var data = Dictionary<String, SQLColumn>()
subscript(key: String) -> SQLColumn? {
get {
return data[key]
}
set(newVal) {
data[key] = newVal
}
}
func description()->String {
return data.description
}
}
// MARK:- SQLiteDB Class - Does all the work
class SQLiteDB{
let DB_NAME = "data.db"
let QUEUE_LABLE = "SQLiteDB"
private var db:COpaquePointer = nil
private var queue:dispatch_queue_t
private var fmt = NSDateFormatter()
private var GROUP = ""
var newFileName = " "
var recentFileName = "Bøsse "
struct Static {
static var instance:SQLiteDB? = nil
static var token:dispatch_once_t = 0
}
class func sharedInstance() -> SQLiteDB! {
dispatch_once(&Static.token) {
Static.instance = self.init(gid:"")
}
return Static.instance!
}
class func sharedInstance(gid:String) -> SQLiteDB! {
dispatch_once(&Static.token) {
Static.instance = self.init(gid:gid)
}
return Static.instance!
}
required init(gid:String) {
assert(Static.instance == nil, "Singleton already initialized!")
GROUP = gid
// Set queue
queue = dispatch_queue_create(QUEUE_LABLE, nil)
// Set up for file operations
let fm = NSFileManager.defaultManager()
let dbName:String = String.fromCString(DB_NAME)!
var docDir = ""
// Is this for an app group?
if GROUP.isEmpty {
// Get path to DB in Documents directory
docDir = NSSearchPathForDirectoriesInDomains(.DocumentDirectory,.UserDomainMask, true)[0] as String
} else {
// Get path to shared group folder
if let url = fm.containerURLForSecurityApplicationGroupIdentifier(GROUP) {
docDir = url.path!
} else {
assert(false, "Error getting container URL for group: \(GROUP)")
}
}
let path = docDir.NS.stringByAppendingPathComponent(dbName)
print(path)
// Check if copy of DB is there in Documents directory
if !(fm.fileExistsAtPath(path)) {
// The database does not exist, so copy to Documents directory
if let from = NSBundle.mainBundle().resourcePath?.NS.stringByAppendingPathComponent(dbName) {
var error:NSError?
do {
try fm.copyItemAtPath(from, toPath: path)
print("restart the app to get updated data")
} catch let error1 as NSError {
error = error1
print("SQLiteDB - failed to copy writable version of DB!")
print("Error - \(error!.localizedDescription)")
return
}
}
}
// Open the DB
let cpath = path.cStringUsingEncoding(NSUTF8StringEncoding)
let error = sqlite3_open(cpath!, &db)
if error != SQLITE_OK {
// Open failed, close DB and fail
print("SQLiteDB - failed to open DB!")
sqlite3_close(db)
}
fmt.dateFormat = "YYYY-MM-dd HH:mm:ss"
}
deinit {
closeDatabase()
}
private func closeDatabase() {
if db != nil {
// Get launch count value
let ud = NSUserDefaults.standardUserDefaults()
var launchCount = ud.integerForKey("LaunchCount")
launchCount--
print("SQLiteDB - Launch count \(launchCount)")
var clean = false
if launchCount < 0 {
clean = true
launchCount = 500
}
ud.setInteger(launchCount, forKey: "LaunchCount")
ud.synchronize()
// Do we clean DB?
if !clean {
sqlite3_close(db)
return
}
// Clean DB
print("SQLiteDB - Optimize DB")
let sql = "VACUUM; ANALYZE"
if execute(sql) != SQLITE_OK {
print("SQLiteDB - Error cleaning DB")
}
sqlite3_close(db)
}
}
// Execute SQL with parameters and return result code
func execute(sql:String, parameters:[AnyObject]?=nil)->CInt {
var result:CInt = 0
dispatch_sync(queue) {
let stmt = self.prepare(sql, params:parameters)
if stmt != nil {
result = self.execute(stmt, sql:sql)
}
}
return result
}
// Run SQL query with parameters
func query(sql:String, parameters:[AnyObject]?=nil)->[SQLRow] {
var rows = [SQLRow]()
dispatch_sync(queue) {
let stmt = self.prepare(sql, params:parameters)
if stmt != nil {
rows = self.query(stmt, sql:sql)
}
}
return rows
}
// Show alert with either supplied message or last error
func alert(msg:String) {
dispatch_async(dispatch_get_main_queue()) {
#if os(iOS)
let alert = UIAlertView(title: "SQLiteDB", message:msg, delegate: nil, cancelButtonTitle: "OK")
alert.show()
#else
let alert = NSAlert()
alert.addButtonWithTitle("OK")
alert.messageText = "SQLiteDB"
alert.informativeText = msg
alert.alertStyle = NSAlertStyle.WarningAlertStyle
alert.runModal()
#endif
}
}
// Private method which prepares the SQL
private func prepare(sql:String, params:[AnyObject]?)->COpaquePointer {
var stmt:COpaquePointer = nil
let cSql = sql.cStringUsingEncoding(NSUTF8StringEncoding)
// Prepare
let result = sqlite3_prepare_v2(self.db, cSql!, -1, &stmt, nil)
if result != SQLITE_OK {
sqlite3_finalize(stmt)
if let error = String.fromCString(sqlite3_errmsg(self.db)) {
let msg = "SQLiteDB - failed to prepare SQL: \(sql), Error: \(error)"
print(msg)
}
return nil
}
// Bind parameters, if any
if params != nil {
// Validate parameters
let cntParams = sqlite3_bind_parameter_count(stmt)
let cnt = CInt(params!.count)
if cntParams != cnt {
let msg = "SQLiteDB - failed to bind parameters, counts did not match. SQL: \(sql), Parameters: \(params)"
print(msg)
return nil
}
var flag:CInt = 0
// Text & BLOB values passed to a C-API do not work correctly if they are not marked as transient.
for ndx in 1...cnt {
// println("Binding: \(params![ndx-1]) at Index: \(ndx)")
// Check for data types
if let txt = params![ndx-1] as? String {
flag = sqlite3_bind_text(stmt, CInt(ndx), txt, -1, SQLITE_TRANSIENT)
} else if let data = params![ndx-1] as? NSData {
flag = sqlite3_bind_blob(stmt, CInt(ndx), data.bytes, CInt(data.length), SQLITE_TRANSIENT)
} else if let date = params![ndx-1] as? NSDate {
let txt = fmt.stringFromDate(date)
flag = sqlite3_bind_text(stmt, CInt(ndx), txt, -1, SQLITE_TRANSIENT)
} else if let val = params![ndx-1] as? Double {
flag = sqlite3_bind_double(stmt, CInt(ndx), CDouble(val))
} else if let val = params![ndx-1] as? Int {
flag = sqlite3_bind_int(stmt, CInt(ndx), CInt(val))
} else {
flag = sqlite3_bind_null(stmt, CInt(ndx))
}
// Check for errors
if flag != SQLITE_OK {
sqlite3_finalize(stmt)
if let error = String.fromCString(sqlite3_errmsg(self.db)) {
let msg = "SQLiteDB - failed to bind for SQL: \(sql), Parameters: \(params), Index: \(ndx) Error: \(error)"
print(msg)
}
return nil
}
}
}
return stmt
}
// Private method which handles the actual execution of an SQL statement
private func execute(stmt:COpaquePointer, sql:String)->CInt {
// Step
var result = sqlite3_step(stmt)
if result != SQLITE_OK && result != SQLITE_DONE {
sqlite3_finalize(stmt)
if let err = String.fromCString(sqlite3_errmsg(self.db)) {
let msg = "SQLiteDB - failed to execute SQL: \(sql), Error: \(err)"
print(msg)
}
return 0
}
// Is this an insert
let upp = sql.uppercaseString
if upp.hasPrefix("INSERT ") {
// Known limitations: http://www.sqlite.org/c3ref/last_insert_rowid.html
let rid = sqlite3_last_insert_rowid(self.db)
result = CInt(rid)
} else if upp.hasPrefix("DELETE") || upp.hasPrefix("UPDATE") {
var cnt = sqlite3_changes(self.db)
if cnt == 0 {
cnt++
}
result = CInt(cnt)
} else {
result = 1
}
// Finalize
sqlite3_finalize(stmt)
return result
}
// Private method which handles the actual execution of an SQL query
private func query(stmt:COpaquePointer, sql:String)->[SQLRow] {
var rows = [SQLRow]()
var fetchColumnInfo = true
var columnCount:CInt = 0
var columnNames = [String]()
var columnTypes = [CInt]()
var result = sqlite3_step(stmt)
while result == SQLITE_ROW {
// Should we get column info?
if fetchColumnInfo {
columnCount = sqlite3_column_count(stmt)
for index in 0..<columnCount {
// Get column name
let name = sqlite3_column_name(stmt, index)
columnNames.append(String.fromCString(name)!)
// Get column type
columnTypes.append(self.getColumnType(index, stmt:stmt))
}
fetchColumnInfo = false
}
// Get row data for each column
let row = SQLRow()
for index in 0..<columnCount {
let key = columnNames[Int(index)]
let type = columnTypes[Int(index)]
if let val:AnyObject = self.getColumnValue(index, type:type, stmt:stmt) {
// println("Column type:\(type) with value:\(val)")
let col = SQLColumn(value: val, type: type)
row[key] = col
}
}
rows.append(row)
// Next row
result = sqlite3_step(stmt)
}
sqlite3_finalize(stmt)
return rows
}
// Get column type
private func getColumnType(index:CInt, stmt:COpaquePointer)->CInt {
var type:CInt = 0
// Column types - http://www.sqlite.org/datatype3.html (section 2.2 table column 1)
let blobTypes = ["BINARY", "BLOB", "VARBINARY"]
let charTypes = ["CHAR", "CHARACTER", "CLOB", "NATIONAL VARYING CHARACTER", "NATIVE CHARACTER", "NCHAR", "NVARCHAR", "TEXT", "VARCHAR", "VARIANT", "VARYING CHARACTER"]
let dateTypes = ["DATE", "DATETIME", "TIME", "TIMESTAMP"]
let intTypes = ["BIGINT", "BIT", "BOOL", "BOOLEAN", "INT", "INT2", "INT8", "INTEGER", "MEDIUMINT", "SMALLINT", "TINYINT"]
let nullTypes = ["NULL"]
let realTypes = ["DECIMAL", "DOUBLE", "DOUBLE PRECISION", "FLOAT", "NUMERIC", "REAL"]
// Determine type of column - http://www.sqlite.org/c3ref/c_blob.html
let buf = sqlite3_column_decltype(stmt, index)
// println("SQLiteDB - Got column type: \(buf)")
if buf != nil {
var tmp = String.fromCString(buf)!.uppercaseString
// Remove brackets
let pos = tmp.positionOf("(")
if pos > 0 {
tmp = tmp.subStringTo(pos)
}
// Remove unsigned?
// Remove spaces
// Is the data type in any of the pre-set values?
// println("SQLiteDB - Cleaned up column type: \(tmp)")
if intTypes.contains(tmp) {
return SQLITE_INTEGER
}
if realTypes.contains(tmp) {
return SQLITE_FLOAT
}
if charTypes.contains(tmp) {
return SQLITE_TEXT
}
if blobTypes.contains(tmp) {
return SQLITE_BLOB
}
if nullTypes.contains(tmp) {
return SQLITE_NULL
}
if dateTypes.contains(tmp) {
return SQLITE_DATE
}
return SQLITE_TEXT
} else {
// For expressions and sub-queries
type = sqlite3_column_type(stmt, index)
}
return type
}
// Get column value
private func getColumnValue(index:CInt, type:CInt, stmt:COpaquePointer)->AnyObject? {
// Integer
if type == SQLITE_INTEGER {
let val = sqlite3_column_int(stmt, index)
return Int(val)
}
// Float
if type == SQLITE_FLOAT {
let val = sqlite3_column_double(stmt, index)
return Double(val)
}
// Text - handled by default handler at end
// Blob
if type == SQLITE_BLOB {
let data = sqlite3_column_blob(stmt, index)
let size = sqlite3_column_bytes(stmt, index)
let val = NSData(bytes:data, length: Int(size))
return val
}
// Null
if type == SQLITE_NULL {
return nil
}
// Date
if type == SQLITE_DATE {
// Is this a text date
let txt = UnsafePointer<Int8>(sqlite3_column_text(stmt, index))
if txt != nil {
if let buf = NSString(CString:txt, encoding:NSUTF8StringEncoding) {
let set = NSCharacterSet(charactersInString: "-:")
let range = buf.rangeOfCharacterFromSet(set)
if range.location != NSNotFound {
// Convert to time
var time:tm = tm(tm_sec: 0, tm_min: 0, tm_hour: 0, tm_mday: 0, tm_mon: 0, tm_year: 0, tm_wday: 0, tm_yday: 0, tm_isdst: 0, tm_gmtoff: 0, tm_zone:nil)
strptime(txt, "%Y-%m-%d %H:%M:%S", &time)
time.tm_isdst = -1
let diff = NSTimeZone.localTimeZone().secondsFromGMT
let t = mktime(&time) + diff
let ti = NSTimeInterval(t)
let val = NSDate(timeIntervalSince1970:ti)
return val
}
}
}
// If not a text date, then it's a time interval
let val = sqlite3_column_double(stmt, index)
let dt = NSDate(timeIntervalSince1970: val)
return dt
}
// If nothing works, return a string representation
let buf = UnsafePointer<Int8>(sqlite3_column_text(stmt, index))
let val = String.fromCString(buf)
// println("SQLiteDB - Got value: \(val)")
return val
}
}
public extension String {
var NS: NSString { return (self as NSString) }
}
Hope you can give me some advice. Thanks

Ignore a letter in swift which starts with a Lower Case

Here's what I am trying to do :
let courseName = "Bachelor of Tourism Administration(B.T.A)".condensedWhitespace
let upperCaseCourseName = courseName.uppercaseString
let extrctCourseName = upperCaseCourseName.componentsSeparatedByString(" ").reduce("") { $0.0 + String($0.1.characters.first!) }
let upperCasecourseFirstCharcters = extrctCourseName
print(upperCasecourseFirstCharcters) // output : "BOTA" but i want "BTA"
as you see that my outPut of "Bachelor of Tourism Administration(B.T.A)" is BOTA but the desired output is BTA because word of is starting from a lowerCase and i want to ignore that word in my this method , how am gonna do that any idea ?
let courseName = "Bachelor of Tourism Administration(B.T.A)" //.condensedWhitespace
var newString = ""
let array : NSArray = courseName.componentsSeparatedByString(" ")
for chr in array {
let str = chr as! NSString
if str.lowercaseString != str{
if newString.characters.count > 0{
newString = newString.stringByAppendingString(" "+(str as String))
continue
}
newString = newString.stringByAppendingString((str as String))
}
}
let upperCaseCourseName = newString.uppercaseString
let extrctCourseName = upperCaseCourseName.componentsSeparatedByString(" ").reduce("") { $0.0 + String($0.1.characters.first!) }
let upperCasecourseFirstCharcters = extrctCourseName
print(upperCasecourseFirstCharcters)
//This will defiantly meet to your problem/. Let me know if it works for u or not
You can paste this into a playground:
extension String {
func array() -> [String] {
return self.componentsSeparatedByString(" ")
}
func abbreviate() -> String {
var output = ""
let array = self.array()
for word in array {
let index = word.startIndex.advancedBy(0)
let str = String(word[index])
if str.lowercaseString != str {
output += str
}
}
return output
}
}
let courseName = "Bachelor of Tourism Administration(B.T.A)".abbreviate()
print(courseName) // prints BTA
A clean approach would be:
extension Character
{
public func isUpper() -> Bool
{
let characterString = String(self)
return (characterString == characterString.uppercaseString) && (characterString != characterString.lowercaseString)
}
}
let courseName = "Bachelor of Tourism Administration(B.T.A)"
let upperCaseCourseName = courseName
let extrctCourseName = upperCaseCourseName.componentsSeparatedByString(" ").reduce("") {
if($0.1.characters.first!.isUpper()) {
return $0.0 + String($0.1.characters.first!)
}else {
return $0.0
}
}

Swift display annotations in mapView in another thread

This code does not add annotations to mapView. I saw in one answer that mapView function is called every time addAnotation is called so where's the problem? But when I move map they show up.
func addPlacesMarkers(location:CLLocation) {
self.communication.getJsonData(self.getPubsNearByCreator(location)) { (finalData, error) -> Void in
if error != nil {
print(error)
} else {
if let row: NSArray = finalData {
for var i = 0; i < row.count; i++ {
let lat = row[i]["lat"] as! String
let lng = row[i]["lng"] as! String
let title = row[i]["name"] as! String
let id = row[i]["id"] as! String
let point = CustomizedAnotation(id: Int(id)!, name: title)
point.title = title
point.coordinate.latitude = Double(lat)!
point.coordinate.longitude = Double(lng)!
let keyExists = self.places[Int(id)!] != nil
if keyExists == false {
self.places.updateValue(point, forKey: Int(id)!)
}
}
var finalPlaces :[MKPointAnnotation] = []
for place in self.places.values {
finalPlaces.append(place)
}
self.mView.addAnnotations(finalPlaces)
self.mView.showsPointsOfInterest = false
}
}
}
}
You can't modify the UI in a thread different from the main.
You should put your UI modification code inside a dispatch_async block like this:
dispatch_async(dispatch_get_main_queue()) {
//Your code that modify the UI
self.mView.addAnnotations(finalPlaces)
}

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