Question

I am trying to take text that the user inputs in a text view section (outlet named viewNotes) and put it into a DB after clicking a submit button. When I run the app it works fine until I hit submit and then I get a crash (breakpoint) on the sqlite3_bind_text function. I can’t figure out what I’m doing wrong. Here is the action code:

- (IBAction)submitNotes:(id)sender {
NSString *docsDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *path = [docsDir stringByAppendingPathComponent:@"highpeaks.db"];

sqlite3 *database;
sqlite3_stmt *theNewStmt;
if(sqlite3_open([path UTF8String], &database) == SQLITE_OK)
{
    const char *sql = "UPDATE Peaks SET notes=? WHERE ID=?";
    if(sqlite3_prepare_v2(database, sql, -1, &theNewStmt, NULL) != SQLITE_OK)
        NSLog(@"Error while creating update statement. %s", sqlite3_errmsg(database));
}
NSLog(@"%@",self.viewNotes.text);
sqlite3_bind_text(theNewStmt, 1, [self.viewNotes.text UTF8String], -1, SQLITE_TRANSIENT);
sqlite3_bind_int(theNewStmt, 2, [self.detailItem ID]);

char* errmsg;
sqlite3_exec(database, "COMMIT", NULL, NULL, &errmsg);

if(SQLITE_DONE != sqlite3_step(theNewStmt))
    NSLog(@"Error while updating. %s", sqlite3_errmsg(database));
sqlite3_finalize(theNewStmt);

sqlite3_close(database);
}

Answer 1

I am not entirely sure what was wrong with the above code, but this code works just fine:

sqlite3_stmt *stmt=nil;
sqlite3 *cruddb;

//insert
const char *sql = "UPDATE Peaks SET notes=? where ID=?";

//Open db
NSString *docsDir = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
NSString *cruddatabase = [docsDir stringByAppendingPathComponent:@"highpeaks.db"];

sqlite3_open([cruddatabase UTF8String], &cruddb);
sqlite3_prepare_v2(cruddb, sql, -1, &stmt, NULL);
sqlite3_bind_text(stmt, 1, [self.viewNotes.text UTF8String], -1, SQLITE_TRANSIENT);
sqlite3_bind_int(stmt, 2, [self.detailItem ID]);

sqlite3_step(stmt);
sqlite3_finalize(stmt);
sqlite3_close(cruddb);