I have one tables looks like as below
I have one XML where detail of CLUB is available. Every tag has one value but Images tag contain dynamic images.
After this my object looks like as below
ClubDetails.h
#import <Foundation/Foundation.h>
#import <CoreData/CoreData.h>
#import "ClubDetailsImages.h"
#interface ClubDetails : NSManagedObject
#property (nonatomic, retain) NSString * clubarea;
#property (nonatomic, retain) NSString * clubdealhere;
#property (nonatomic, retain) NSString * clubdescription;
#property (nonatomic, retain) NSString * clubdistance;
#property (nonatomic, retain) NSString * clubemail;
#property (nonatomic, retain) NSString * clubfacility;
#property (nonatomic, retain) NSString * clubfav;
#property (nonatomic, retain) NSString * clubid;
#property (nonatomic, retain) NSString * clublat;
#property (nonatomic, retain) NSString * clublogopath;
#property (nonatomic, retain) NSString * clubname;
#property (nonatomic, retain) NSString * clubphone;
#property (nonatomic, retain) NSString * cluburl;
#property (nonatomic, retain) NSString * clubvenutype;
#property (nonatomic, retain) NSString * clublong;
#property (nonatomic, retain) NSSet *clubdetailsimages;
#end
#interface ClubDetails (CoreDataGeneratedAccessors)
- (void)addClubdetailsimagesObject:(ClubDetailsImages *)value;
- (void)removeClubdetailsimagesObject:(ClubDetailsImages *)value;
- (void)addClubdetailsimages:(NSSet *)value;
- (void)removeClubdetailsimages:(NSSet *)value;
Its .m files looks like as below
#implementation ClubDetails
#dynamic clubarea;
#dynamic clubdealhere;
#dynamic clubdescription;
#dynamic clubdistance;
#dynamic clubemail;
#dynamic clubfacility;
#dynamic clubfav;
#dynamic clubid;
#dynamic clublat;
#dynamic clublogopath;
#dynamic clubname;
#dynamic clubphone;
#dynamic cluburl;
#dynamic clubvenutype;
#dynamic clublong;
#dynamic clubdetailsimages;
- (void)addClubdetailsimagesObject:(ClubDetailsImages *)value {
NSSet *changedObjects = [[NSSet alloc] initWithObjects:&value count:1];
[self willChangeValueForKey:#"ClubDetailsImages" withSetMutation:NSKeyValueUnionSetMutation usingObjects:changedObjects];
[[self primitiveValueForKey:#"ClubDetailsImages"] addObject:value];
[self didChangeValueForKey:#"ClubDetailsImages" withSetMutation:NSKeyValueUnionSetMutation usingObjects:changedObjects];
}
- (void)removeClubdetailsimagesObject:(ClubDetailsImages *)value {
NSSet *changedObjects = [[NSSet alloc] initWithObjects:&value count:1];
[self willChangeValueForKey:#"ClubDetailsImages" withSetMutation:NSKeyValueMinusSetMutation usingObjects:changedObjects];
[[self primitiveValueForKey:#"ClubDetailsImages"] removeObject:value];
[self didChangeValueForKey:#"ClubDetailsImages" withSetMutation:NSKeyValueMinusSetMutation usingObjects:changedObjects];
}
- (void)addClubdetailsimages:(NSSet *)value {
[self willChangeValueForKey:#"ClubDetailsImages" withSetMutation:NSKeyValueUnionSetMutation usingObjects:value];
[[self primitiveValueForKey:#"ClubDetailsImages"] unionSet:value];
[self didChangeValueForKey:#"ClubDetailsImages" withSetMutation:NSKeyValueUnionSetMutation usingObjects:value];
}
- (void)removeClubdetailsimages:(NSSet *)value {
[self willChangeValueForKey:#"ClubDetailsImages" withSetMutation:NSKeyValueMinusSetMutation usingObjects:value];
[[self primitiveValueForKey:#"ClubDetailsImages"] minusSet:value];
[self didChangeValueForKey:#"ClubDetailsImages" withSetMutation:NSKeyValueMinusSetMutation usingObjects:value];
}
***ClubDetailsImages.h*** looks like
#class ClubDetails;
#interface ClubDetailsImages : NSManagedObject
#property (nonatomic, retain) NSString * images;
#property (nonatomic, retain) ClubDetails *clubdetailed;
***ClubDetailsImages.m*** looks like
#implementation ClubDetailsImages
#dynamic images;
#dynamic clubdetailed;
For Saving, I wrote code like this
-(void)saveClubDetails:(NSMutableArray*)allClubs{
NSError *error;
NSManagedObjectContext *context = [self managedObjectContext];
NSFetchRequest * fetchRequest = [[NSFetchRequest alloc] init];
[fetchRequest setEntity:[NSEntityDescription entityForName:#"ClubDetails" inManagedObjectContext:context]];
[fetchRequest setIncludesPropertyValues:NO]; //only fetch the managedObjectID
NSArray *allObject = [context executeFetchRequest:fetchRequest error:&error];
for (NSManagedObject * obj in allObject) {
[context deleteObject:obj];
}
NSError *saveError = nil;
[context save:&saveError]; // NO MORE VALUE IS DB
for (int x = 0; x<[allClubs count]; x++) {
ClubDetails *club = [NSEntityDescription insertNewObjectForEntityForName:#"ClubDetails"
inManagedObjectContext:context];
ClubDetails2 *ob = (ClubDetails2*)[allClubs objectAtIndex:x];
club.clubarea = [NSString stringWithFormat:#"%#", ob.clubarea];
club.clubdealhere = [NSString stringWithFormat:#"%#", ob.clubdealhere];
club.clubdescription = [NSString stringWithFormat:#"%#", ob.clubdescription];
club.clubdistance = [NSString stringWithFormat:#"%#", ob.clubdistance];
club.clubemail = [NSString stringWithFormat:#"%#", ob.clubemail];
club.clubfacility = [NSString stringWithFormat:#"%#", ob.clubfacility];
club.clubfav = [NSString stringWithFormat:#"%#", ob.clubfav];
club.clubid = [NSString stringWithFormat:#"%#", ob.clubid];
club.clublat = [NSString stringWithFormat:#"%#", ob.clublat];
club.clublogopath = [NSString stringWithFormat:#"%#", ob.clublogopath];
club.clubname = [NSString stringWithFormat:#"%#", ob.clubname];
club.clubphone = [NSString stringWithFormat:#"%#", ob.clubphone];
club.cluburl = [NSString stringWithFormat:#"%#", ob.cluburl];
club.clubvenutype = [NSString stringWithFormat:#"%#", ob.clubvenutype];
club.clublong = [NSString stringWithFormat:#"%#", ob.clublong];
ClubDetailsImages *clubImages = [NSEntityDescription insertNewObjectForEntityForName:#"ClubDetailsImages"
inManagedObjectContext:context];
clubImages.images = [NSString stringWithFormat:#"veer url image"];
[club addClubdetailsimagesObject:clubImages];
}
if (![context save:&error]) {
NSLog(#"Whoops, couldn't save: %#", [error localizedDescription]);
}
// NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
NSEntityDescription *entity = [NSEntityDescription entityForName:#"Clubs"
inManagedObjectContext:context];
[fetchRequest setEntity:entity];
NSArray *fetchedArray = [context executeFetchRequest:fetchRequest error:&error];
NSLog(#"COUNT of arary is %d", [fetchedArray count]);
for (Clubs *info in fetchedArray) {
NSLog(#" Duaan Name ~~~~ : %#", info.clubname);
}
}
I AM STUCK IN FOLLOWING POINTS
1. How to save such objects in CoreData where one club may be 3, 4, 5 images which are stored in Array?
2. How can I fetch that one-to-more relationship from CoreData?
Just keep adding the objects and linking them to the ClubDetails, e.g.given that you have an array of image strings from somewhere....
for (NSString *image in images)
{
ClubDetailsImages *clubImages = [NSEntityDescription insertNewObjectForEntityForName:#"ClubDetailsImages" inManagedObjectContext:context];
clubDetailsImages.image = image;
clubDetailsImages.clubdetailed = club;
}
Not sure exactly what you asking here, but given a ClubDetails instance:
NSSet *images = club.clubdetailsimages;
Also, why have you implemented addClubdetailsimagesObject etc. This is not required. Use XCode to generate your entity classes and you will see that these methods are not created.
Related
Hi all i have a mysql database that consists of 7 columns and i have a script that reads it and extracts the data as JSON which i have pulled into an NSMutableArray, I want to be able to use this array to setup annotations on my Map but i'm not sure what to do here, as you can see i have defined one annotation here which shows up no problem but i'm honestly not sure how to show the NSMutableArray items? The NSMutable array will have more information than needed for the Annotations, I only need, coordinate, title and subtitle so how can i go about doing this? Here is my code so far:
hazards.h
#import <Foundation/Foundation.h>
#import <MapKit/MapKit.h>
#interface Hazards : NSObject <MKAnnotation>
#property (nonatomic, assign) CLLocationCoordinate2D coordinate;
#property (nonatomic, copy) NSString *title;
#property (nonatomic, copy) NSString *subtitle;
#property (nonatomic, strong) NSString * ID;
#property (nonatomic, strong) NSString * ROUTE;
#property (nonatomic, strong) NSString * ADDRESS;
#property (nonatomic, strong) NSString * LATITUDE;
#property (nonatomic, strong) NSString * LONGITUDE;
#property (nonatomic, strong) NSString * HAZARD;
#property (nonatomic, strong) NSString * RISK;
// Methods
- (id) initWithID: (NSString *) hazardsID andROUTE: (NSString *) hazardsROUTE andADDRESS: (NSString *) hazardsADDRESS andLATITUDE: (NSString *) hazardsLATITUDE andLONGITUDE: (NSString *) hazardsLONGITUDE andHAZARD: (NSString *) hazardsHAZARD andRISK: (NSString *) hazardsRISK;
#end
hazards.m
#import "Hazards.h"
#implementation Hazards
#synthesize coordinate, title, subtitle, ID, ROUTE, ADDRESS, LATITUDE, LONGITUDE, HAZARD, RISK;
- (id) initWithID: (NSString *) hazardsID andROUTE: (NSString *) hazardsROUTE andADDRESS: (NSString *) hazardsADDRESS andLATITUDE: (NSString *) hazardsLATITUDE andLONGITUDE: (NSString *) hazardsLONGITUDE andHAZARD: (NSString *) hazardsHAZARD andRISK: (NSString *) hazardsRISK {
self = [super init];
if (self)
{
ID = hazardsID;
ROUTE = hazardsROUTE;
ADDRESS = hazardsADDRESS;
LATITUDE = hazardsLATITUDE;
LONGITUDE = hazardsLONGITUDE;
HAZARD = hazardsHAZARD;
RISK = hazardsRISK;
}
return self;
}
#end
viewController.h
#import <UIKit/UIKit.h>
#import <MapKit/MapKit.h>
#import "Hazards.h"
#interface ViewController : UIViewController
#property (nonatomic, strong) NSMutableArray *json;
#property (nonatomic, strong) NSMutableArray *hazardsArray;
#property (weak, nonatomic) IBOutlet MKMapView *mapView;
#pragma mark - Methods
-(void) retrieveData;
#end
viewController.m
#import "ViewController.h"
#import "Hazards.h"
#interface ViewController ()
#end
// Railway Street Ballymena Coordinates
#define BALLYMENA_LATITUDE 54.857719;
#define BALLYMENA_LONGITUDE -6.280654;
// Span
#define THE_SPAN 0.01f;
#define getDataURL #"localhost:8888/rmb/json.php"
#implementation ViewController
#synthesize json, hazardsArray, mapView;
- (void)viewDidLoad
{
[super viewDidLoad];
// Create the region
MKCoordinateRegion myRegion;
// Center
CLLocationCoordinate2D center;
center.latitude = BALLYMENA_LATITUDE;
center.longitude = BALLYMENA_LONGITUDE;
//Span
MKCoordinateSpan span;
span.latitudeDelta = THE_SPAN;
span.longitudeDelta = THE_SPAN;
myRegion.center = center;
myRegion.span = span;
// Set our mapview
[mapView setRegion:myRegion animated: YES];
// Annotation
NSMutableArray *locations = [[NSMutableArray alloc] init];
CLLocationCoordinate2D location;
Hazards *myAnn;
// Pin to show Royal Mail Ballymena delivery office
myAnn = [[Hazards alloc] init];
location.latitude = BALLYMENA_LATITUDE;
location.longitude = BALLYMENA_LONGITUDE;
myAnn.coordinate = location;
myAnn.title = #"Royal Mail Ballymena";
myAnn.subtitle = #"111, Railway Street";
[locations addObject:myAnn];
[self.mapView addAnnotations:locations];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark - Methods
-(void) retrieveData {
NSURL *url = [NSURL URLWithString:getDataURL];
NSData *data = [NSData dataWithContentsOfURL:url];
json = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:nil];
// Setup our hazards array
hazardsArray = [[NSMutableArray alloc] init];
for (int i =0; i < json.count; i++) {
// Create hazard object
NSString *hazardsID = [[json objectAtIndex:i] objectForKey:#"ID"];
NSString *hazardsROUTE = [[json objectAtIndex:i] objectForKey:#"ROUTE"];
NSString *hazardsADDRESS = [[json objectAtIndex:i] objectForKey:#"ADDRESS"];
NSString *hazardsLATITUDE = [[json objectAtIndex:i] objectForKey:#"LATITUDE"];
NSString *hazardsLONGITUDE = [[json objectAtIndex:i] objectForKey:#"LONGITUDE"];
NSString *hazardsHAZARD = [[json objectAtIndex:i] objectForKey:#"HAZARD"];
NSString *hazardsRISK = [[json objectAtIndex:i] objectForKey:#"RISK"];
Hazards *myHazards = [[Hazards alloc] initWithID:hazardsID andROUTE:hazardsROUTE andADDRESS:hazardsADDRESS andLATITUDE:hazardsLATITUDE andLONGITUDE:hazardsLONGITUDE andHAZARD:hazardsHAZARD andRISK:hazardsRISK];
// Add our hazards object to our hazards array
[hazardsArray addObject:myHazards];
}
// [self.mapView addAnnotation:hazardsArray];
}
#end
Many Thanks in Advance
Assuming your retrieveData correctly builds Hazard objects and is called at the right time you could either add them one at a time with this line inside the loop
[self.mapView addAnnotation:myHazards];
or all at once after the loop is finished
[self.mapView addAnnotations:hazardsArray];
I have 3 classes
First -> MainViewController:
#interface MainViewController : UIViewController {
UtilityBadah *utility;
}
#property (strong, nonatomic) NSManagedObjectContext *managedObjectContext;
- (IBAction)option;
#end
#implementation MainViewController
#synthesize managedObjectContext = _managedObjectContext;
(IBAction)option{
UtilityBadah *util = [[UtilityBadah alloc] initWithContext:_managedObjectContext];
OptionController *ovc = [[OptionController alloc] init];
ovc.util = util;
ovc.managedObjectContext = _managedObjectContext;
[self.navigationController pushViewController:ovc animated:YES];
[util release];
[ovc release];
}
#end
Second -> UtilityBadah:
#interface UtilityBadah : NSObject {
NSManagedObjectContext *managedObjectContext;
NSString *kitab;
NSString *lagu;
NSString *font;
NSString *sizefont;
}
#property (nonatomic, retain) NSManagedObjectContext *managedObjectContext;
#property (nonatomic, retain) NSString *kitab;
#property (nonatomic, retain) NSString *lagu;
#property (nonatomic, retain) NSString *font;
#property (nonatomic, retain) NSString *sizefont;
(id) initWithContext: (NSManagedObjectContext *) context;
#end
#implementation UtilityBadah
#synthesize managedObjectContext;
#synthesize kitab;
#synthesize lagu;
#synthesize font;
#synthesize sizefont;
-(id) initWithContext: (NSManagedObjectContext *) context {
NSError *err;
NSFetchRequest *request = [[NSFetchRequest alloc] init];
NSEntityDescription *enDesc = [NSEntityDescription entityForName:#"OptionDB" inManagedObjectContext:context];
[request setEntity:enDesc];
NSArray *arrData = [context executeFetchRequest:request error:&err];
for (OptionDB *data in arrData) {
lagu = data.lagu;
kitab = data.kitab;
font = data.font;
sizefont = data.sizefont;
}
return self;
}
Thrid -> OptionController:
#interface OptionController : UIViewController{
NSManagedObjectContext *managedObjectContext;
UtilityBadah *util;
}
#property (nonatomic, retain) NSManagedObjectContext *managedObjectContext;
#property (nonatomic, retain) UtilityBadah *util;
#end
(UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath {
bla..bla..
NSLog(#"value is %#",self.util.kitab);
cell.textLabel.text = [listData objectAtIndex:row];
return cell;
}
i wonder why this piece of code:
NSLog(#"value is %#",self.util.kitab);
cause an error "Receiced signa: "EXC_BAD_ACCESS" ?
i wonder ther somthing wrong the way i passed the UtilityBadah object from MainViewController to my OptionController.
Many thanks for any answer.
P.S what is wrong with my xcode 4.2 error information, why it always show "Program received signal: "EXC BAD ACCESS"? cant it be informative?
i think your init method is wrong, try assigning self to [super init] at the start, and doing all your set up after checking that self != nil. this is the basic form of an init:
- (id)init
{
self = [super init];
if (self)
//do setup
return self;
}
also, you are using a subclass of NSObject and associating a managed object context to it, you should look into core data in more detail, you should be using NSManagedObjects
The property name in the OptionController is util not utility
If you want to access the utility property in the UtilityBadah class you will have to do:
self.util.utility
In the UtilityBadah class, initWithContext method, change the for loop as following
for (OptionDB *data in arrData) {
self.lagu = data.lagu;
self.kitab = data.kitab;
self.font = data.font;
self.sizefont = data.sizefont;
}
In your case, the value is not retained since you have assigned without accessing through the property.
You need to allocate those objects first. Here's how your initWithContext method should look like:
-(id) initWithContext: (NSManagedObjectContext *) context {
self = [super init];
if (self) {
NSError *err;
NSFetchRequest *request = [[NSFetchRequest alloc] init];
NSEntityDescription *enDesc = [NSEntityDescription entityForName:#"OptionDB" inManagedObjectContext:context];
[request setEntity:enDesc];
NSArray *arrData = [context executeFetchRequest:request error:&err];
for (OptionDB *data in arrData) {
self.lagu = [NSString stringWithString:data.lagu];
self.kitab = [NSString stringWithString:data.kitab];
self.font = [NSString stringWithString:data.font];
self.sizefont = [NSString stringWithString:data.sizefont];
}
}
return self;
}
I would like to persist an object of a class (not just NSString´s). For instance, I have this class:
** News.h:**
#import <Foundation/Foundation.h>
#interface News : NSObject
#property (nonatomic, retain) NSString * atrib1;
#property (nonatomic, retain) NSString * atrib2;
#end
** News.m:**
#import "News.h"
#implementation News
#synthesize atrib1;
#synthesize atrib2;
#end
Should I have to use a plist to storage it? How should I do it?
Using NSCoding:
In News.m, I have added:
- (void) encodeWithCoder:(NSCoder *)encoder {
[encoder encodeObject:atrib1 forKey:#"key1"];
[encoder encodeObject:atrib2 forKey:#"key2"];
}
- (id)initWithCoder:(NSCoder *)decoder {
self = [super init];
atrib1 = [[decoder decodeObjectForKey:#"key1"] retain];
atrib2 = [[decoder decodeObjectForKey:#"key2"] retain];
return self;
}
-(void)dealloc{
[super dealloc];
[atrib1 release];
[atrib2 release];
}
In News.h:
#interface News : NSObject<NSCoding>{
NSCoder *coder;
}
#property (nonatomic, retain) NSString * atrib1;
#property (nonatomic, retain) NSString * atrib2;
#end
To read update and persist a new object in the plist:
- (IBAction)addANewNews:(id)sender {
//Plist File
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *plistPath = [[paths objectAtIndex:0] stringByAppendingPathComponent:#"myplist.plist"];
//Reading current news
NSData *oldNews = [NSData dataWithContentsOfFile:plistPath];
NSMutableArray *news = (NSMutableArray *)[NSKeyedUnarchiver unarchiveObjectWithData:oldNews];
if (news == nil)
news = [[NSMutableArray alloc] init];
//Adding a new news
[news addObject:aNewNews];
NSError *error;
NSData* newData = [NSKeyedArchiver archivedDataWithRootObject:news];
//persisting the updated news
BOOL success =[newData writeToFile:plistPath options:NSDataWritingAtomic error:&error];
if (!success) {
NSLog(#"Could not write file.");
}else{
NSLog(#"Success");
}
}
I have this class
#import <Foundation/Foundation.h>
#interface SubscriptionArray : NSObject{
NSString *title;
NSString *source;
NSString *htmlUrl;
}
#property (nonatomic,retain) NSString *title;
#property (nonatomic,retain) NSString *source;
#property (nonatomic,retain) NSString *htmlUrl;
#end
and the implementation file is this one:
#import "SubscriptionArray.h"
#implementation SubscriptionArray
#synthesize title,source,htmlUrl;
-(void)dealloc{
[title release];
[source release];
[htmlUrl release];
}
#end
When I use the class like in this example I get an EXEC_BAD_ACCESS error:
for (NSDictionary *element in subs){
SubscriptionArray *add;
add.title=[element objectForKey:#"title"]; //ERROR Happens at this line
add.source=[element objectForKey:#"htmlUrl"];
add.htmlUrl=[element objectForKey:#"id"];
[subscriptions addObject:add];
}
Can someone help me?
P.S. Subscriptions is a NSMutableArray
You need to allocate your SubscriptionArray object like so: SubscriptionArray *add = [[SubscriptionArray alloc] init];
Your for loop will therefore look something like this:
for (NSDictionary *element in subs){
SubscriptionArray *add = [[SubscriptionArray alloc] init];
add.title=[element objectForKey:#"title"];
add.source=[element objectForKey:#"htmlUrl"];
add.htmlUrl=[element objectForKey:#"id"];
[subscriptions addObject:add];
[add release];
}
You need to initialize your SubscriptionArray. i.e.
SubscriptionArray *add = [SubscriptionArray new];
I have been getting this error and have no idea how to fix it. I am a newbie for iOS programming.
Hope the codes below is enough to see what the problem is.
Here is my ListTableController.m
...
#implementation ListTableController
#synthesize listTableView;
#synthesize detailController;
#synthesize listOfTasks;
#synthesize title, note, date;
-(id)initWithTitle:(NSString *)sTitle note:(NSString *)sNote date:(NSString *)sDate {
NSLog(#"FUNC: %s",__FUNCTION__);
self.title = sTitle;
self.note = sNote;
self.date = sDate;
return self;
}
// Retrieve records
-(void) getAllRowsFromTableNamed: (NSString *) tableName {
//---retrieve rows---
NSString *qsql = [NSString stringWithFormat:#"SELECT * FROM %# WHERE status = '1' ORDER BY date ASC",tableName]; sqlite3_stmt *statement;
//---initialize the array---
listOfTasks = [[NSMutableArray alloc] init];
if (sqlite3_prepare_v2( db, [qsql UTF8String], -1, &statement, nil) == SQLITE_OK) {
while (sqlite3_step(statement) == SQLITE_ROW) {
NSString *fieldTitle = [NSString stringWithUTF8String:(char *)sqlite3_column_text(statement, 1)];
NSString *fieldNote = [NSString stringWithUTF8String:(char *)sqlite3_column_text(statement, 2)];
NSString *fieldDate = [NSString stringWithUTF8String:(char *)sqlite3_column_text(statement, 3)];
// Create a new object with the data from the database
NSString *str = [[NSString alloc] initWithTitle :fieldTitle note:fieldNote date:fieldDate];
[listOfTasks addObject:str];
[str release];
[fieldTitle release];
[fieldNote release];
[fieldDate release];
}
//---deletes the compiled statement from memory---
sqlite3_finalize(statement);
}
}
...
Here is my ListTableController.h
#import
#import "sqlite3.h"
#import "TaskDetailController.h"
#interface ListTableController : UITableViewController {
IBOutlet UITableView *listTableView;
sqlite3 *db;
TaskDetailController *detailController;
}
NSString *title;
NSString *note;
NSString *date;
NSMutableArray * listOfTasks;
#property (nonatomic, retain) NSString *title;
#property (nonatomic, retain) NSString *note;
#property (nonatomic, retain) NSString *date;
#property (nonatomic, retain) TaskDetailController *detailController;
#property (nonatomic, retain) IBOutlet UITableView *listTableView;
#property (nonatomic, retain) NSMutableArray *listOfTasks;
-(void) copyDatabaseIfNeeded;
-(NSString *) filePath;
-(IBAction)addCalendar;
-(NSInteger)countToday;
-(id)initWithTitle:(NSString *)sTitle note:(NSString *)sNote date:(NSString *)sDate;
#end
And this is the error log from the console:
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[NSPlaceholderString initWithTitle:note:date:]: unrecognized selector sent to instance 0x4e00470'
Try removing these lines. Class methods as [NSString stringWith.... returns autoreleased objects.
[fieldTitle release];
[fieldNote release];
[fieldDate release];
I think you have to learn about memory management first. You will get a big headache if you don't.
Try removing these lines.
[fieldTitle release];
[fieldNote release];
[fieldDate release];
And if you want to combine title , note , and date as a single line.
then try this
// Create a new object with the data from the database
NSString *str = [[NSString stringWithFormate:#"%# %# %#",fieldTitle,fieldNote,fieldDate];
instead of
// Create a new object with the data from the database
NSString *str = [[NSString alloc] initWithTitle :fieldTitle note:fieldNote date:fieldDate];