iphone - Can't save string into SQLite database (SQLITE_DONE doesn't return true) -

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i'm trying store strings in sqlite database ios 6 iphone application. it's simple: joke displayed in textview when clicking button. when clicking second button, want save textview sqlite database (savejoke). however, sqlite_done never returned, indicating not working. so, looking @ alerts, "fail" when savejoke executed below.

any idea why not working? have feeling might missing basic in creation of , inserting sqlite database. thankful help!

my code:

jokefirstviewcontroller.m:

#import "jokefirstviewcontroller.h"  @interface jokefirstviewcontroller ()  @end  @implementation jokefirstviewcontroller  @synthesize joke = _joke;  - (void)viewdidload     {     [super viewdidload];      nsstring *docsdir;     nsarray *dirpaths;      dirpaths = nssearchpathfordirectoriesindomains(                                                nsdocumentdirectory, nsuserdomainmask, yes);      docsdir = dirpaths[0];      // build path database file     _databasepath = [[nsstring alloc]                  initwithstring: [docsdir stringbyappendingpathcomponent:                                   @"contacts.db"]];      nsfilemanager *filemgr = [nsfilemanager defaultmanager];      if ([filemgr fileexistsatpath: _databasepath ] == no)     {     const char *dbpath = [_databasepath utf8string];      if (sqlite3_open(dbpath, &_contactdb) == sqlite_ok)     {         char *errmsg;         const char *sql_stmt =         "create table if not exists contacts (id integer primary key autoincrement, jokesaved text)"; //look          sqlite3_close(_contactdb);      }   } }  - (ibaction)savejoke:(id)sender {      /* current joke displayed */     self.joke = self.text.text;     nsstring *currentjoke = self.joke;     nsstring *jokesaved = [[nsstring alloc] initwithformat:currentjoke];      sqlite3_stmt    *statement;     const char *dbpath = [_databasepath utf8string];      if (sqlite3_open(dbpath, &_contactdb) == sqlite_ok)     {          nsstring *insertsql = [nsstring stringwithformat:                                @"insert contacts (jokesaved) values (?)",                                jokesaved];          const char *insert_stmt = [insertsql utf8string];         sqlite3_prepare_v2(_contactdb, insert_stmt,                            -1, &statement, null);         if (sqlite3_step(statement) == sqlite_done)         {             void alertwithmessage(nsstring *message);             {                 uialertview *alert = [[uialertview alloc] initwithtitle:@"database" message:@"success" delegate:nil cancelbuttontitle:@"ok" otherbuttontitles:nil];                 [alert show];             }         } else {             void alertwithmessage(nsstring *message);             {                 uialertview *alert = [[uialertview alloc] initwithtitle:@"database" message:@"fail" delegate:nil cancelbuttontitle:@"ok" otherbuttontitles:nil];                 [alert show];             }          }         sqlite3_finalize(statement);         sqlite3_close(_contactdb);     }      }  }

jokefirstviewcontroller.h:

#import <uikit/uikit.h> #import <messageui/mfmessagecomposeviewcontroller.h> #import <sqlite3.h>  @interface jokefirstviewcontroller : uiviewcontroller <mfmessagecomposeviewcontrollerdelegate>   - (ibaction)savejoke:(id)sender;  - (ibaction)sharejoke:(id)sender;  - (ibaction)generatejoke:(id)sender;  @property (strong, nonatomic) iboutlet uitextview *text;  @property (copy, nonatomic) nsstring *joke;  @property (strong, nonatomic) nsstring *databasepath;  @property (nonatomic) sqlite3 *contactdb;  @end

you have check insert query, stringformat wrong:

change:

nsstring *insertsql = [nsstring stringwithformat:                                @"insert contacts (jokesaved) values (?)", jokesaved];

to:

nsstring *insertsql = [nsstring stringwithformat:                                @"insert contacts (jokesaved) values ('%@')", jokesaved];

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