Question

What am I doing wrong? It’s a very simple statement but couldn’t figure out what causes it to fail

    FMDatabase *db = [FMDatabase databaseWithPath:appDelegate.databasePath];
    [db open];
        isSuccess = [db executeUpdate:@"INSERT INTO notes (title, comment, fk) values (?, ?, ?);", title, comment, fkID];

exception.name=NSInvalidArgumentException, exception.reason=-[__NSCFString comment]: unrecognized selector sent to instance 0x68a93f

Note.h

#import <Foundation/Foundation.h>

@interface Note : NSObject

@property (strong, nonatomic) NSString *title;
@property (strong, nonatomic) NSString *comment;
@property (nonatomic) int fkID;

Answer 1

Here is what I ended up doing.

    NSString *sql = [NSString stringWithFormat:@"INSERT INTO notes (title, comment, fkid) values ('%@', '%@', %i)", title, comment, fkid];
    isSuccess = [db executeUpdate:sql];

It works fine.