no such table: tablename in sqlite even after initialization - ios

Question

i am new to ios dev and i am having the following problem:
i initialized the tables i needed, and when i try to execute a query to any of the tables i get the "no such table" error, here is the steps and code:
-(BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Function called to create a copy of the database if needed.
[[SQLiteUtilities sharedSQLiteManager] initializationDatabase];
return YES;
}
and here is the implementation:
-(void)initializationDatabase {
NSString *path = [self databaseFilePath];
BOOL isExists = [[NSFileManager defaultManager] fileExistsAtPath:path];
if (isExists) return;
FMDatabase *db = [FMDatabase databaseWithPath:path];
if ([db open] == NO) {
return;
}
NSString *sql =
#"CREATE TABLE albums("
"albumid INTEGER PRIMARY KEY AUTOINCREMENT,"
"directory CHAR(20) NOT NULL,"
"albumname CHAR(32) NOT NULL,"
"count INT NOT NULL,"
"orderid INT NOT NULL"
");"
"CREATE TABLE photos("
"photoid INTEGER PRIMARY KEY AUTOINCREMENT,"
"albumid INTEGER NOT NULL DEFAULT 0,"
"filename CHAR(50) NOT NULL DEFAULT \"\","
"originalname CHAR(50) DEFAULT \"\","
"addtime INTEGER NOT NULL DEFAULT 0,"
"createtime INTEGER NOT NULL DEFAULT 0,"
"filesize INTEGER NOT NULL DEFAULT 0"
");";
//[db executeQuery:sql1];
[db executeQuery:sql];
[db close];
}
and when i try to add anything as follows i get the "no such table:albums" error:
- (AlbumsUtilities *)createAlbumWithName:(NSString *)name {
FMDatabase *db = [FMDatabase databaseWithPath:[self databaseFilePath]];
if (![db open]) return nil;
NSString *directory = createRandomAlbumDirectory();
int maxid = 0;
BOOL success = [db executeUpdate:#"INSERT INTO albums(directory,albumname,count,orderid) VALUES(?,?,0,?)", directory,name,#(maxid)];
AlbumsUtilities *album = nil;
if (success) {
....(not getting here of course)
}
[db close];
return album;
}
any help would be appreciated, thanks.

Answer 1

Try this two function for initialize db .
ADD Blank File .sqlite extension
- (void)createCopyOfDatabaseIfNeeded {
// First, test for existence.
BOOL success;
NSFileManager *fileManager = [NSFileManager defaultManager];
NSError *error;
NSLog(#"%#",[self getDBPath]);
success = [fileManager fileExistsAtPath:[self getDBPath]];
if (success){
return;
}
// The writable database does not exist, so copy the default to the appropriate location.
NSString *defaultDBPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:#"db.sqlite"];
success = [fileManager copyItemAtPath:defaultDBPath toPath:[self getDBPath] error:&error];
if (!success) {
NSAssert1(0, #"Failed to create writable database file with message '%#'.", [error localizedDescription]);
}
}
-(NSString *)getDBPath{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *docsPath = [paths objectAtIndex:0];
NSString *dbPath = [docsPath stringByAppendingPathComponent:#"db.sqlite"];
return dbPath;
}
After Initialize create table
-(void)createTable{
FMDatabase *database = [FMDatabase databaseWithPath:[self getDBPath]];
[database open];
[database executeUpdate:"your query"];
[database close];
}
Calling
-(BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Function called to create a copy of the database if needed.
[[SQLiteUtilities sharedSQLiteManager] createCopyOfDatabaseIfNeeded];
[[SQLiteUtilities sharedSQLiteManager] createTable];
}

Answer 2

#Try this:
Bool isSuccess = YES;
if (sqlite3_open(path, &db) == SQLITE_OK)
{
char *errMsg;
const char *sql_stmt =
"CREATE TABLE IF NOT EXISTS contactTable (albumid integer primary key autoincrement ,directory CHAR(20) NOT NULL, albumname CHAR(32) NOT NULL, albumname CHAR(32) NOT NULL, count INT NOT NULL, orderid INT NOT NULL);";
if (sqlite3_exec(db, sql_stmt, NULL, NULL, &errMsg)
!= SQLITE_OK)
{
sqlite3_close(db);
isSuccess = NO;
}
sqlite3_close(db);
return isSuccess;
}
else {
sqlite3_close(db);
isSuccess = NO;
}
}
sqlite3_close(db);
NSLog(#"Albums Table Created");
return isSuccess;