Accessing objects when changing from NSMutableArray to NSMutableDictionary - objective-c

Question

In one of my classes I have changed from an NSMutableArray to a NSMutableDictionary.
Before I accessed objects from other class like this:
tmpDeadline = [_taskDays[i] deadline]; //deadline is a object of another class
And accessed methods like this:
[_taskDays[datePlace]addDatedTask:d]; //addDatedTask is a method in another class
But now I can't do this anymore since I get a lot of errors which I don't really know how to handle.
What I do know is that I want use the other class's "deadline" as key and the instance of the class as object.
Here is the code (I have given the code that gives me problem the comment ERROR:
#import "LIUTaskCalendar.h"
#import "LIUTaskDay.h"
#import "LIUDatedTask.h"
#interface LIUTaskCalendar ()
{
NSMutableDictionary *_taskDays;
}
#end
#implementation LIUTaskCalendar
- (void)addDatedTasks:(LIUDatedTask *)d {
if (!_taskDays) {
_taskDays = [[NSMutableDictionary alloc] init];
}
NSInteger length = [_taskDays count];
NSDate *tmpDeadline;
NSDate *tmpDueDate;
NSInteger dateExist = 0;
NSInteger datePlace = 0;
NSDate *tmp;
for (int i = 0; i < length; i++) {
tmpDueDate = d.dueDate;
tmpDeadline = [_taskDays[i] deadline]; //*ERROR*
if ([tmpDueDate compare:tmpDeadline] == NSOrderedAscending) {
continue;
} else if ([tmpDueDate compare:tmpDeadline] == NSOrderedDescending) {
continue;
} else {
dateExist = 1;
datePlace = i;
break;
}
}
if (dateExist == 1) {
[_taskDays[datePlace]addDatedTask:d]; //*ERROR*
} else {
LIUTaskDay *tmpLIUTaskDay = [[LIUTaskDay alloc]init];
[tmpLIUTaskDay addDatedTask:d];
tmpLIUTaskDay.deadline = d.dueDate;
//[_taskDays setObject:d forKey:tmpLIUTaskDay.deadline];
[_taskDays addObject:tmpLIUTaskDay]; //*ERROR*
}
}
- (void)removeTaskDay:(NSDate *)date {
NSDate *tmpDeadline;
NSDate *tmpDeleteDate;
NSInteger dateExist = 0;
NSDate *dateDelete;
NSInteger length = [_taskDays count];
for (int i = 0; i < length; i++) {
tmpDeleteDate = date;
tmpDeadline = [_taskDays[i] deadline]; //*ERROR*
if ([tmpDeleteDate compare:tmpDeadline] == NSOrderedAscending) {
continue;
} else if ([tmpDeleteDate compare:tmpDeadline] == NSOrderedDescending) {
continue;
} else {
dateExist = 1;
break;
}
}
if (dateExist == 1) {
//[_taskDays removeObjectForKey:dateDelete];
[_taskDays removeObjectAtIndex:dateDelete]; //*ERROR*
} else {
return;
}
}
#end
If you need me to provide the code for the other class to then don't
hesitate to tell me.
Thanks in advance
UPDATE
Changed from this:
[_taskDays addObject:tmpLIUTaskDay];
To this:
[_taskDays setObject:d forKey:tmpLIUTaskDay.deadline];

Answer 1

taskDays is dictionary, while you are using it as if it is an array _taskDays[i] in
tmpDeadline = [_taskDays[i] deadline]; //*ERROR*
also here:
[_taskDays addObject:tmpLIUTaskDay]; //*ERROR*
To fetch from dictionary or add a new key-value pair you should do like this:
tmpDeadline = [_taskDays[#"taskDay"] deadline];
and
[_taskDays addObject:addObject:tmpLIUTaskDay forKey:#"taskDay"];