#import "CardsTableViewController.h"
#import "Lesson.h"
#import "Card.h"
#import "CoreDataHelper.h"
@interface CardsTableViewController ()
@property (strong, nonatomic) NSMutableArray *cards;
@end
@implementation CardsTableViewController
-(NSMutableArray *)cards{
if (!_cards)
_cards = [[NSMutableArray alloc] init];
return _cards;
}
- (void)viewDidLoad {
[super viewDidLoad];
NSSet *unordereCards = self.lesson.cards;
NSSortDescriptor *nameDescr = [NSSortDescriptor sortDescriptorWithKey:@"name" ascending:YES];
NSArray *sortedCards = [unordereCards sortedArrayUsingDescriptors:@[nameDescr]];
self.cards = [sortedCards mutableCopy];
}
#pragma mark - helpers
-(Card *)cardWithName:(NSString *)name{
NSManagedObjectContext *context = [CoreDataHelper managedObjectContext];
Card *card = [NSEntityDescription insertNewObjectForEntityForName:@"Card" inManagedObjectContext:[CoreDataHelper managedObjectContext]];
card.name = name;
card.lesson = self.lesson;
NSError *error = nil;
if (![context save:&error]){
//we have an error
NSLog(@"error: %@", error);
}
return card;
}
#pragma mark - UIAlertViewDelegate
-(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
if (buttonIndex == 1) {
NSString *alertText = [alertView textFieldAtIndex:0].text;
[self.cards addObject:[self cardWithName:alertText]];
[self.tableView insertRowsAtIndexPaths:@[[NSIndexPath indexPathForRow:[self.cards count]-1 inSection:0]] withRowAnimation:UITableViewRowAnimationFade];
}
}
-(void)viewWillAppear:(BOOL)animated{
[super viewWillAppear:animated];
NSFetchRequest *fetchRequest = [NSFetchRequest fetchRequestWithEntityName:@"Card"];
NSError *error = nil;
NSArray *fetchedCards = [[CoreDataHelper managedObjectContext] executeFetchRequest:fetchRequest error:&error];
self.cards = [fetchedCards mutableCopy];
[self.tableView reloadData];
}
- (IBAction)addCard:(id)sender {
UIAlertView *newCard = [[UIAlertView alloc] initWithTitle:@"Enter new card name:" message:nil delegate:self cancelButtonTitle:@"Cancel" otherButtonTitles:@"Add", nil];
[newCard setAlertViewStyle:UIAlertViewStylePlainTextInput];
[newCard show];
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return self.lesson.cards.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"Card Cell" forIndexPath:indexPath];
Card *selectedCard = self.cards[indexPath.row];
cell.textLabel.text = selectedCard.name;
return cell;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return self.lesson.cards.count;
}