how to insert data from string to Sqlite in Swift3? - ios

Question

I have a problem that I have tried to insert string data to Sqlite. I want to do is in my Details ViewController if user press Like button, the word and meaning of string pass into Sqlite file that show in Favourite ViewController. Below is my DetailsVC code.
import UIKit
import AVFoundation
class DetailsVC: UIViewController, UITextViewDelegate {
#IBOutlet weak var wordLbl: UILabel!
#IBOutlet weak var meaningLbl: UITextView!
#IBOutlet weak var sysWordLbl: UILabel!
#IBOutlet weak var sysWordsLbl: UILabel!
#IBOutlet weak var anyWordsLbl: UILabel!
#IBOutlet weak var anyWordLbl: UILabel!
#IBOutlet weak var wordImg: UIImageView!
#IBOutlet weak var buSound: UIButton!
#IBOutlet weak var buLike: UIButton!
#IBOutlet weak var menuBtn: UIButton!
//Data from HomeVC
var data:Data?
var fdatas = [FData]()
var favouriteVC = FavouriteVC()
override func viewDidLoad() {
super.viewDidLoad()
meaningLbl.delegate = self
wordLbl.text = "\((data?._word.capitalized)!) \((data?._phonetic)!)"
self.meaningLbl.text = data?._meaning
self.sysWordsLbl.text = data?._meaning
self.anyWordsLbl.text = data?._meaning
self.sysWordLbl.text = "Synonym"
self.anyWordLbl.text = "Antonym"
meaningLbl.font = UIFont(name: FONT_REGULAR, size: 24.0)
}
#IBAction func buMenu(_ sender: Any) {
//menu
dismiss(animated: true, completion: nil)
}
#IBAction func buSound(_ sender: Any) {
//Todo: speak the word
if buSound.isEnabled == true{
buSound.setImage(UIImage(named: "volume-2.png"), for: .normal)
}else{
buSound.setImage(UIImage(named: "volume-un-2.png"), for: .normal)
}
let utTerance = AVSpeechUtterance(string: "\((data?._word)!)")
let synthesize = AVSpeechSynthesizer()
utTerance.voice = AVSpeechSynthesisVoice(language: "en-gb")
synthesize.speak(utTerance)
}
#IBAction func buLike(_ sender: Any) {
//Todo: Click Like
if buLike.isEnabled == true{
buLike.setImage(UIImage(named: "heart.png"), for: .normal)
//Save data to Database
let word = data?._word ?? ""
let meaning = data?._meaning ?? ""
do{
let favData = FData(word: word, meaning: meaning)
self.fdatas.append(favData)
print("\(word), \(meaning)")
}catch{
print(error)
}
}else{
buSound.setImage(UIImage(named: "heart-un.png"), for: .normal)
}
//FavouriteVC.insertRowsAtIndexPaths([NSIndexPath(forRow: fdatas.count-1, inSection: 0)], withRowAnimation: .Fade)
}
func textView(_ textView: UITextView, shouldChangeTextIn range: NSRange, replacementText text: String) -> Bool {
self.view.endEditing(true);
return false;
}
}
My FavouriteVC
import UIKit
import SwipeCellKit
import SQLite
class FavouriteVC: UIViewController,UITableViewDelegate,UITableViewDataSource, SwipeTableViewCellDelegate{
//TabelView
#IBOutlet weak var fTableView: UITableView!
//Variables
var fdata = [FData]()
override func viewDidLoad() {
super.viewDidLoad()
// FtableView
fTableView.delegate = self
fTableView.dataSource = self
//reload Data
fTableView.reloadData()
}
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return fdata.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if let cell = tableView.dequeueReusableCell(withIdentifier: FAVOURITE_CELL, for: indexPath) as? FavouriteCell{
cell.configureCell(fdata: fdata[indexPath.row])
//cell.delegate = self
return cell
}
return FavouriteCell()
}
func tableView(_ tableView: UITableView, editActionsForRowAt indexPath: IndexPath, for orientation: SwipeActionsOrientation) -> [SwipeAction]? {
guard orientation == .right else { return nil }
let deleteAction = SwipeAction(style: .destructive, title: "Delete") { action, indexPath in
// handle action by updating model with deletion
}
// customize the action appearance
deleteAction.image = UIImage(named: "delete")
return [deleteAction]
}
}
FData.swif
import Foundation
class FData {
//let id: Int64?
var word: String
var meaning: String
//var address: String
init(id: Int64) {
// self.id = id
word = ""
meaning = ""
//address = ""
}
init(word: String, meaning: String) {
// self.id = id
self.word = word
self.meaning = meaning
//self.address = address
}
}
FavouriteData Instance
import UIKit
import SQLite
class FavouriteData{
static let instance = FavouriteData()
private let db: Connection?
private let words = Table("words")
private let id = Expression<Int64>("id")
private let wordL = Expression<String?>("word")
private let meaningL = Expression<String?>("shanword_uni")
//private let address = Expression<String>("address")
private init() {
let path = NSSearchPathForDirectoriesInDomains(
.documentDirectory, .userDomainMask, true
).first!
do {
db = try Connection("\(path)/favourite.sqlite")
} catch {
db = nil
print ("Unable to open database")
}
createTable()
}
func createTable() {
do {
try db!.run(words.create(ifNotExists: true) { table in
table.column(id, primaryKey: true)
table.column(wordL)
//table.column(phone, unique: true)
table.column(meaningL)
})
} catch {
print("Unable to create table")
}
}
func addData(word: String, meaning: String) -> Int64? {
do {
let insert = words.insert(wordL <- word, meaningL <- meaning)
let id = try db!.run(insert)
print("Save: \(id)")
return id
} catch {
print("Insert failed")
return -1
}
}
func getData() -> [FData] {
var contacts = [FData]()
do {
for contact in try db!.prepare(self.words) {
contacts.append(FData(
// id: contact[id],
word: contact[wordL]!,
meaning: contact[meaningL]!))
}
} catch {
print("Select failed")
}
return contacts
}
func deleteData(index: Int64) -> Bool {
do {
let contact = words.filter(id == index)
try db!.run(contact.delete())
return true
} catch {
print("Delete failed")
}
return false
}
}
But, there is not cell of row in the FavouriteVC. How to fix this? Please help me.
Best,
Sai Tawng Pha

Answer 1

I have solved my problem by add one line of code. In my FavouriteVC class, just add it under ViewdidLoad function " fdata = FavouriteData.instance.getData() ".
Here is my complete code.
import UIKit
import SwipeCellKit
import SQLite
class FavouriteVC: UIViewController,UITableViewDelegate,UITableViewDataSource, SwipeTableViewCellDelegate{
//TabelView
#IBOutlet weak var fTableView: UITableView!
//Variables
var fdata = [FData]()
override func viewDidLoad() {
super.viewDidLoad()
// FtableView
fTableView.delegate = self
fTableView.dataSource = self
//reload Data
fTableView.reloadData()
//Get Data
fdata = FavouriteData.instance.getData()
}
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return fdata.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
if let cell = tableView.dequeueReusableCell(withIdentifier: FAVOURITE_CELL, for: indexPath) as? FavouriteCell{
cell.configureCell(fdata: fdata[indexPath.row])
//cell.delegate = self
return cell
}
return FavouriteCell()
}
func tableView(_ tableView: UITableView, editActionsForRowAt indexPath: IndexPath, for orientation: SwipeActionsOrientation) -> [SwipeAction]? {
guard orientation == .right else { return nil }
let deleteAction = SwipeAction(style: .destructive, title: "Delete") { action, indexPath in
// handle action by updating model with deletion
}
// customize the action appearance
deleteAction.image = UIImage(named: "delete")
return [deleteAction]
}
}