NSMutableDictionary confused over how to use keys with certain code ?
- by Jules
I'm getting data from a database and I need to add the string field value and the record id.
However, I need this to work with some existing code...
I'm replacing this (see code below) and getting data from my database.
NSDictionary *dict = [[NSDictionary alloc] initWithContentsOfFile:path];
self.allCategories = dict;
[dict release];
But needs to work with these key and value search functions.
- (void)resetSearch {
NSMutableDictionary *allCategoriesCopy = [self.allCategories mutableDeepCopy];
self.Categories = allCategoriesCopy;
[allCategoriesCopy release];
NSMutableArray *keyArray = [[NSMutableArray alloc] init];
[keyArray addObject:UITableViewIndexSearch];
[keyArray addObjectsFromArray:[[self.allCategories allKeys]
sortedArrayUsingSelector:@selector(compare:)]];
self.keys = keyArray;
[keyArray release];
}
.
- (void)handleSearchForTerm:(NSString *)searchTerm {
NSMutableArray *sectionsToRemove = [[NSMutableArray alloc] init];
[self resetSearch];
for (NSString *key in self.keys) {
NSMutableArray *array = [Categories valueForKey:key];
NSMutableArray *toRemove = [[NSMutableArray alloc] init];
for (NSString *name in array) {
if ([name rangeOfString:searchTerm
options:NSCaseInsensitiveSearch].location
== NSNotFound)
[toRemove addObject:name];
}
if ([array count] == [toRemove count])
[sectionsToRemove addObject:key];
[array removeObjectsInArray:toRemove];
[toRemove release];
}
[self.keys removeObjectsInArray:sectionsToRemove];
[sectionsToRemove release];
[table reloadData];
}
Keep getting an error from this code...
NSDictionary *arrayTmp= [[NSDictionary alloc] init];
... loop records
int cid = sqlite3_column_int(statementTMP, 0);
NSString *category = [[NSString alloc]
initWithUTF8String:(char *)sqlite3_column_text(statementTMP, 1)];
[arrayTmp setObject:category forKey:[NSString stringWithFormat:@"%i", cid]];
Error caused by line above
* Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[NSCFString count]: unrecognized selector sent to instance 0x4d4c500' * Call stack at first throw *
... end loop
self.allCategories = arrayTmp;
[arrayTmp release];
