solis...@gmail.com
import UIKit
import Parse
class ExercisesTableViewController: UITableViewController, UISearchResultsUpdating {
//Array to store the exercises from Parse as objects
private var exercises = [Exercise]()
var searchController = UISearchController()
var searchResults:[Exercise] = [Exercise]()
var searchActive: Bool = false
let current = PFUser.current()
@IBOutlet var addExercise: UIBarButtonItem!
//Return from the New Exercise View to the Exercise tableView
@IBAction func unwindToHomeScreen(segue:UIStoryboardSegue){}
override func viewDidLoad() {
super.viewDidLoad()
//Only admins can see the add button
if current == nil {
addExercise.isEnabled = false
addExercise.tintColor = UIColor(red: 0, green: 0, blue: 0, alpha: 0)
} else if current?["isAdmin"] as! Bool == false{
addExercise.isEnabled = false
addExercise.tintColor = UIColor(red: 0, green: 0, blue: 0, alpha: 0)
} else {
addExercise.isEnabled = true
addExercise.tintColor = UIColor.white
}
loadExercisesFromParse()
//Hide the navigation bar when scrolling down
navigationController?.hidesBarsOnSwipe = true
//Remove the title of the back button
navigationItem.backBarButtonItem = UIBarButtonItem(title: "" ,style: .plain, target: nil, action: nil)
// Add a search bar
searchController = UISearchController(searchResultsController: nil)
tableView.tableHeaderView = searchController.searchBar
searchController.searchResultsUpdater = self
searchController.dimsBackgroundDuringPresentation = false
searchController.searchBar.placeholder = "SEARCH EXERCISES..."
searchController.searchBar.tintColor = UIColor.white
searchController.searchBar.barTintColor = UIColor(red: 0/255, green: 0/255, blue: 0/255, alpha: 0.75)
// Pull To Refresh Control
refreshControl = UIRefreshControl()
refreshControl?.backgroundColor = UIColor.lightGray
refreshControl?.tintColor = UIColor(red: 0/255, green: 114/255, blue: 206/255, alpha: 1)
refreshControl?.addTarget(self, action: #selector(loadExercisesFromParse), for: UIControlEvents.valueChanged)
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
//Hide the bar on swipe
//navigationController?.hidesBarsOnSwipe = true
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// MARK: - Table view data source
override func numberOfSections(in tableView: UITableView) -> Int {
// Return the number of sections
return 1
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
// Return the number of rows
if searchController.isActive {
print(searchResults.count)
return searchResults.count
} else {
print(exercises.count)
return exercises.count
}
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cellIdentifier = "Cell"
let cell = tableView.dequeueReusableCell(withIdentifier: cellIdentifier, for: indexPath)
as! ExercisesTableViewCell
// Determine if we get the exercises from search result or the original array
let exercise = (searchController.isActive) ? searchResults[indexPath.row] : exercises[indexPath.row]
// Configure the cell
cell.nameLabel.text = exercise.name.uppercased()
let arrayTarjet:NSArray = exercise.tarjets as NSArray
cell.tarjetLabel.text = arrayTarjet.componentsJoined(by: ", ").uppercased()
let arrayPQ:NSArray? = exercise.pq as NSArray?
cell.pqLabel.text = arrayPQ?.componentsJoined(by: ", ").uppercased()
cell.levelLabel.text = difficultyLevel(difficulty: exercise.difficulty)
print(cell.nameLabel.text as Any)
// Load image in background
cell.thumbnailImageView.image = UIImage()
if let image = exercise.image {
image.getDataInBackground(block: { (imageData, error) in
if let exerciseImageData = imageData {
cell.thumbnailImageView.image = UIImage(data: exerciseImageData)
}
})
}
tableView.separatorColor = UIColor(red: 0/255, green: 114/255, blue: 206/255, alpha: 0.3)
/*if(cell.isSelected){
cell.contentView.backgroundColor = UIColor(red: 0/255, green: 114/255, blue: 206/255, alpha: 1)
cell.nameLabel.textColor = UIColor.white
cell.tarjetLabel.textColor = UIColor.white
cell.pqLabel.textColor = UIColor.white
cell.levelLabel.textColor = UIColor.white
}else{
cell.contentView.backgroundColor = UIColor.white
cell.nameLabel.textColor = UIColor.black
cell.tarjetLabel.textColor = UIColor.black
cell.pqLabel.textColor = UIColor.black
cell.levelLabel.textColor = UIColor.black
}*/
return cell
}
func difficultyLevel(difficulty: Int)-> String {
var diffLevel = ""
switch difficulty {
case 1: diffLevel = "SUPER EASY"
case 2: diffLevel = "VERY EASY"
case 3: diffLevel = "EASY"
case 4: diffLevel = "NORMAL"
case 5: diffLevel = "CHALLENGING"
case 6: diffLevel = "HARD"
case 7: diffLevel = "VERY HARD"
case 8: diffLevel = "SUPER HARD"
case 9: diffLevel = "PROFESSIONAL"
case 10: diffLevel = "OLYMPIC"
default:
diffLevel = "DIFFICULTY"
}
return diffLevel
}
override func tableView(_ tableView: UITableView, canEditRowAt indexPath: IndexPath) -> Bool {
if searchController.isActive {
return false
} else {
if (current != nil) && (current?["isAdmin"] as! Bool == true){
return true
}
else{
return false
}
}
}
override func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) {
let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
as! ExercisesTableViewCell
cell.nameLabel.restartLabel()
cell.tarjetLabel.restartLabel()
cell.pqLabel.restartLabel()
for cell in tableView.visibleCells as! [ExercisesTableViewCell] {
cell.nameLabel.restartLabel()
cell.tarjetLabel.restartLabel()
cell.pqLabel.restartLabel()
}
}
//Shows the delete option on swipe to remove the exercise from Parse
override func tableView(_ tableView: UITableView, editActionsForRowAt indexPath: IndexPath) -> [UITableViewRowAction]? {
let deleteAction = UITableViewRowAction(style: .destructive, title: "Delete") { (action, indexPath) in
let alert = UIAlertController(title: "Delete exercise", message: "The exercise will be deleted permanently. Are you sure you want to delete it?",preferredStyle: .alert)
let delete = UIAlertAction(title: "Delete", style: .destructive, handler: { (action) -> Void in
let query = PFQuery(className: "Exercise")
query.whereKey("objectId", equalTo: self.exercises[indexPath.row].exId)
query.findObjectsInBackground { (objects, error) -> Void in
if let error = error {
print("Error: \(error) \(error.localizedDescription)")
return
}
if let objects = objects {
for object in objects {
object.deleteEventually()
self.exercises.remove(at: indexPath.row)
self.tableView.deleteRows(at: [indexPath], with: .fade)
}
}
}
})
let cancel = UIAlertAction(title: "Cancel", style: .default, handler: { (action) -> Void in })
alert.addAction(cancel)
alert.addAction(delete)
self.present(alert, animated: true, completion: nil)
}
//This is nice if you want to add a edit button later
return [deleteAction]
}
//Prepare data from the selected exercise to be shown in the detail view
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
// Get the new view controller using segue.destinationViewController.
if segue.identifier == "showExerciseDetail"{
if let indexPath = tableView.indexPathForSelectedRow {
// Pass the selected object to the new view controller.
let destinationController = segue.destination as! ExerciseDetailViewController
destinationController.exercise = /*(searchController.isActive) ? searchResults[indexPath.row] : */exercises[indexPath.row]
}
}
}
//Filter the contents to show by the characters typed
func filterContent(for searchText: String) {
var query: PFQuery<PFObject>!
let nameQuery = PFQuery(className: "Exercise")
let familyQuery = PFQuery(className: "Exercise")
let tarjetsQuery = PFQuery(className: "Exercise")
let pqQuery = PFQuery(className: "Exercise")
// Filter by search string
nameQuery.whereKey("name", contains: searchText.capitalized)
familyQuery.whereKey("family", contains: searchText.capitalized)
tarjetsQuery.whereKey("tarjets", hasPrefix: searchText.capitalized)
pqQuery.whereKey("pq", contains: searchText.capitalized)
query = PFQuery.orQuery(withSubqueries: [nameQuery, familyQuery, tarjetsQuery, pqQuery])
searchActive = true
query.findObjectsInBackground { (objects, error) -> Void in
if (error == nil) {
self.searchResults.removeAll(keepingCapacity: false)
if let objects = objects {
for object in objects {
let exercise = Exercise(pfObject: object)
self.searchResults.append(exercise)
self.tableView.reloadData()
}
}
}
else{
print("Error: \(String(describing: error)) \(String(describing: error?.localizedDescription))")
}
self.searchActive = false
}
}
func updateSearchResults(for searchController: UISearchController) {
if let searchText = searchController.searchBar.text {
filterContent(for: searchText)
tableView.reloadData()
}
}
// MARK: Parse-related methods
//Load the Exercise data from Parse to the object exercises
@objc func loadExercisesFromParse() {
// Clear up the array
exercises.removeAll(keepingCapacity: true)
tableView.reloadData()
// Pull data from Parse
let query = PFQuery(className: "Exercise")
query.cachePolicy = PFCachePolicy.networkElseCache
query.findObjectsInBackground { (objects, error) -> Void in
if let error = error {
print("Error: \(error) \(error.localizedDescription)")
return
}
if let objects = objects {
for (index, object) in objects.enumerated() {
let exercise = Exercise(pfObject: object)
self.exercises.append(exercise)
print(exercise.name)
let indexPath = IndexPath(row: index, section: 0)
self.tableView.insertRows(at: [indexPath], with: .fade)
}
self.tableView.reloadData()
}
if let refreshControl = self.refreshControl {
if refreshControl.isRefreshing {
refreshControl.endRefreshing()
}
}
}
}
}
