Always fail if (sqlite3_step(statement) == SQLITE_DONE) - ios

Question

This is the code that I have used in Appdelegate.m to copy the database
- (void) copyDatabaseIfNeeded {
NSFileManager *fileManager = [NSFileManager defaultManager];
NSError *error;
NSString *dbPath = [self getDBPath];
BOOL success = [fileManager fileExistsAtPath:dbPath];
if(!success) {
NSString *defaultDBPath = [[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:#"LocalSongs.sqlite"];
success = [fileManager copyItemAtPath:defaultDBPath toPath:dbPath error:&error];
if (!success)
NSAssert1(0, #"Failed to create writable database file with message '%#'.", [error localizedDescription]);
}
}
And this is used to get the DBPath
- (NSString *) getDBPath {
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentationDirectory , NSUserDomainMask, YES);
NSString *documentsDir = [paths objectAtIndex:0];
return [documentsDir stringByAppendingPathComponent:#"LocalSongs.sqlite"];
}
This is my playlist Insert method
-(NSString *)InsertPlaylist :(NSString *)PlaylistName
{
NSLog(#"passed");
NSString *status;
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory , NSUserDomainMask, YES);
NSString *documentsDir = [paths objectAtIndex:0];
NSString *dbPath=[[NSString alloc]initWithString:[documentsDir stringByAppendingPathComponent:#"LocalSongs.sqlite"]];
NSLog(#"Database Path %#",dbPath);
sqlite3_stmt *statement;
if (sqlite3_open([dbPath UTF8String], &database) == SQLITE_OK) {
NSLog(#"open");
NSString *insertSQL = [NSString stringWithFormat: #"INSERT INTO LOCALPLAYLIST (PLAYLISTNAME,getdate()) VALUES (\"%#\")",PlaylistName];
const char *insert_stmt = [insertSQL UTF8String];
sqlite3_prepare_v2(database, insert_stmt, -1, &statement, NULL);
if (sqlite3_step(statement) == SQLITE_DONE)
{
status=#"Playlist Created";
}
else
{
status=#"Error occured";
}
return status;
}
}
The problem I have is this prepare_v2 is always become notdone. It always execute the else part.
if (sqlite3_step(statement) == SQLITE_DONE)
What is the problem with this? Please help me

Answer 1

I think you have an error with your query: you are supposed to put a column name in the place you put getdate(), i.e. instead of
INSERT INTO LOCALPLAYLIST (PLAYLISTNAME,getdate()) VALUES (\"%#\")
you should use something like
INSERT INTO LOCALPLAYLIST (PLAYLISTNAME,MYDATECOLUMN) VALUES (\"%#\",getdate())
After sqlite3_prepare_v2 the statement pointer is NULL?
Compare the return values of sqlite3_prepare_v2 and sqlite3_step with the ones in http://www.sqlite.org/c3ref/c_abort.html to get a better insight on what's going wrong