@end
//-----------------------------------------------------------------------------------------------------
// Database.m
#import "Database.h"
@implementation Database
static Database *_sharedDatabase;
BOOL dbOpen = NO;
+ (Database *)sharedDatabase
{
if (!_sharedDatabase) {
_sharedDatabase = [[Database alloc] init];
}
return _sharedDatabase;
}
// Creates a writable copy of the bundled default database in the application Documents directory.
- (void)createEditableCopyOfDatabaseIfNeeded {
// First, test for existence.
BOOL success;
NSFileManager *fileManager = [NSFileManager defaultManager];
NSError *error;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *writableDBPath = [documentsDirectory stringByAppendingPathComponent:@"iSearch.sql"];
success = [fileManager fileExistsAtPath:writableDBPath];
if (success) return;
// The writable database does not exist, so copy the default to the appropriate location.
NSString *defaultDBPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"iSearch.sql"];
success = [fileManager copyItemAtPath:defaultDBPath toPath:writableDBPath error:&error];
if (!success) {
NSLog([error localizedDescription]);
NSAssert1(0, @"Failed to create writable database file with message '%@'.", [error localizedDescription]);
}
}
- (void) openDb {
while (dbOpen) {
//Wait untill db will be closed from othrea thread
[NSThread sleepForTimeInterval:1];
NSLog(@"Wait untill db will be closed from other thread");
}
if (!dbOpen) {
[self createEditableCopyOfDatabaseIfNeeded];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *path = [documentsDirectory stringByAppendingPathComponent:@"iSearch.sql"];
//NSLog(path);
//dbPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:@"database.sql"];
if (sqlite3_open([path UTF8String], &database) == SQLITE_OK) {
dbOpen = YES;
}
}
}
- (void) closeDb {
if (dbOpen) {
sqlite3_close(database);
dbOpen = NO;
}
}
- (NSString *) getRowString:(char *)inputStr{
if(inputStr == nil)
return @"";
else
return [NSString stringWithUTF8String:inputStr];
}
@end
Subscribe