invalide username or password when validate it sqlite iphone - iphone

Question

when Click on update button then data does not updated i want to just updated my password
first match old password
if old password match with database then validate new password and conform password using isEquelToString then click on update button and oldpassword must be updated with newPassword

Answer 1

I think user name and password match for single user only there for if it match then it will return one row using following code. Check the following code i think this will work for you.
-(void)checkingDatabase{
databaseName = #"trylogin.sqlite";
// Get the path to the documents directory and append the databaseName
NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDir = [documentPaths objectAtIndex:0];
databasePath = [[documentsDir stringByAppendingPathComponent:databaseName]retain];
NSLog(#"databse path %#",databasePath);
database = nil;
int myInt = 0;
if(sqlite3_open([databasePath UTF8String], &database) ==SQLITE_OK){
NSString *sql = [[NSString alloc] initWithFormat:#"select COUNT(*) from loginTry where userName='%#' and password='%#'",txtusername.text,txtPassword.text];
const char *sqlStatement = [tempSQL cStringUsingEncoding:NSUTF8StringEncoding];
[tempSQL release];
sqlite3_stmt *compiledStatement;
sqlite3_prepare_v2(database, sqlStatement, -1, &compiledStatement, NULL);
if(sqlite3_step(compiledStatement) == SQLITE_ROW) {
myInt = (int)sqlite3_column_int(compiledStatement, 0);
}
sqlite3_finalize(compiledStatement);
sqlite3_close(database);
}
if(myInt ! = 0){
AnimalViewController *FBController = [[AnimalViewController alloc] initWithNibName:#"AnimalViewController" bundle:nil];
[self.view addSubview:FBController.view];
}
else
{
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:#"UIAlertView" message:#"Wrong username or password" delegate:self cancelButtonTitle:#"ok" otherButtonTitles:nil];
[alert show];
[alert release];
}
}

Answer 2

As above same but some change at condition checking as follows..
if(myInt ! = 0) {
if([newpassword.text isEqualToString: confirmPassword.text]) {
//Write code for update query.
}
else {
//print message new password and confirm password does not match.
}
}
else
{
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:#"UIAlertView" message:#"Wrong username or password" delegate:self cancelButtonTitle:#"ok" otherButtonTitles:nil];
[alert show];
[alert release];
}