sqlite database in iphone - iphone

Question

How can I retain all the row from login table? I can retain only one row, why not others? Am I using wrong query? Please check my code:
#import "loginAppDelegate.h"
#import "global.h"
#import <sqlite3.h>
#import "logincontroller.h"
#implementation loginAppDelegate
#synthesize window;
#synthesize loginView;
//databaseName=#"login.sqlite";
-(void) chekAndCreateDatabase
{
BOOL success;
//sqlite3 *databaseName=#"login.sqlite";
NSFileManager *fileManager=[NSFileManager defaultManager];
NSArray *documentPaths=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDir =[documentPaths objectAtIndex:0];
NSString *databasePath=[documentsDir stringByAppendingPathComponent:#"login.sqlite"];
success=[fileManager fileExistsAtPath:databasePath];
if(success)return;
NSString *databasePathFromApp=[[[NSBundle mainBundle]resourcePath]stringByAppendingPathComponent:#"login.sqlite"];
[fileManager copyItemAtPath:databasePathFromApp toPath:databasePath error:nil];
[fileManager release];
}
-(void) Data
{
Gpass=#"";
Guname=#"";
sqlite3_stmt *detailStmt=nil;
//sqlite3 *databaseName;
NSArray *documentPaths=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDir =[documentPaths objectAtIndex:0];
NSString *databasePath=[documentsDir stringByAppendingPathComponent:#"login.sqlite"];
[self chekAndCreateDatabase];
sqlite3 *database;
if (sqlite3_open([databasePath UTF8String],&database)==SQLITE_OK) {
if (detailStmt==nil) {
const char *sql= "select *from Loginchk where uname='%?'and password='%?'";
//NSString *sql = [[NSString alloc] initWithFormat:#"SELECT * FROM Loginchk WHERE uname ='%#' and password ='%#' ",Uname.text,Password.text];
if (sqlite3_prepare_v2(database,sql,-1,&detailStmt,NULL)==SQLITE_OK) {
sqlite3_bind_text(detailStmt,1,[Gunameq UTF8String],-1,SQLITE_TRANSIENT);
sqlite3_bind_text(detailStmt,2,[Gpassq UTF8String],-1,SQLITE_TRANSIENT);
if (SQLITE_DONE!= sqlite3_step(detailStmt)) {
Guname=[NSString stringWithUTF8String:(char*)sqlite3_column_text(detailStmt,0)];
Gpass =[NSString stringWithUTF8String:(char*)sqlite3_column_text(detailStmt,1)];
NSLog(#"'%#'",Guname);
NSLog(#"'%#'",Gpass);
}
}
sqlite3_finalize(detailStmt);
}
}
sqlite3_close(database);
}

Answer 1

//Declare Class as Following to store user details UserDetails.h
#interface UserDetails : NSObject
{
NSString *strUserName;
NSString *strPassword;
}
#property (nonatomic,assign) NSString * strUserName;
#property (nonatomic,retain) NSString * strPassword;
//Declare Class as Following to store user details UserDetails.m
#implementation UserDetails
#synthesize strUserName,strPassword;
-(void)dealloc
{
[super dealloc];
[strUserName release];
[strPassword release];
}
//Declare Class as Following to store user details Your ApplicationDelegate.m file
-(NSMutableArray)getAllUserDetails
{
sqlite3_stmt *selectStmt = nil;
NSArray *documentPaths=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDir =[documentPaths objectAtIndex:0];
NSString *databasePath=[documentsDir stringByAppendingPathComponent:#"login.sqlite"];
[self chekAndCreateDatabase];
NSMutableArray *arrUsers = [[NSMutableArray alloc] init];
const char *sqlStatement = "your query";
if(sqlite3_prepare_v2(database, sqlStatement, -1, &selectStmt, NULL) == SQLITE_OK)
{
// Loop through the results and add them to the feeds array
while(sqlite3_step(selectStmt) == SQLITE_ROW)
{
UserDetails *objUserDetail = [[UserDetails alloc] init];
objUserDetail.userName = [NSString stringWithUTF8String:(char *)sqlite3_column_text(selectStmt, 1)];
objUserDetail.password = [NSString stringWithUTF8String:(char *)sqlite3_column_text(selectStmt, 2)];
[arrUsers addObject:objUserDetail];
[objUserDetail release];
}
}
// Release the compiled statement from memory
sqlite3_finalize(selectStmt);
selectStmt = nil;
}
call this function in button click event as
-(IBAction)btnLogin
{
BOOL isUserExists = NO;
NSMutableArray *arrAllUsers = [loginAppDelegate getAllUserDetails];
//Normal Checking Stuff
for(UserDetails *objUser in arrAllUsers)
{
if([txtUserTextBox.text isEqualToString:objUser.strUserName] && [txtPasswordTextBox.text isEqualToString:objUser.strPassword])
{
//True Login
isUserExists = YES;
break;
}
}
//Check your stuff if user exists or not what to do
if(isUserExists)
{
Heading to next screen;
}
else
{
Alertmessage
}
}