sqlite3 queries not being executed - objective-c

Question

I am working on something using SQLite3 and I cant exactly figure out why I am getting an error. I have looked at other SO post and no one can actually quite put a finger on that error and I have tried a number of things. the code is failing on this line (sqlite3_open(dbPath, &itemDB)==SQLITE_OK).
I have tried:
commenting that line and saying sqlite3_open(dbPath, &itemDB), when i do that my code excecutes but nothing in the folder
Error from the NSLog was "unable to open database file" so i created the datbase and placed it in the path myself to see if that would help but no difference
Verified the path by using breakpoints, path is correct but the db is just never created.
-(void)openDatabase
{
NSArray *path=NSSearchPathForDirectoriesInDomains(NSDocumentationDirectory, NSUserDomainMask, YES);
NSString *docPath=[path objectAtIndex:0];
// dbPathString=[docPath stringByAppendingPathComponent:#"items.db"];
dbPathString = [docPath stringByAppendingPathComponent:#"items.sqlite"];
char *error;
NSFileManager *fileManager=[NSFileManager defaultManager];
if (![fileManager fileExistsAtPath:dbPathString]) {
const char *dbPath=[dbPathString UTF8String];
//Create DB
if (sqlite3_open(dbPath, &items)==SQLITE_OK)
// sqlite3_open(dbPath, &items);
{
const char *sql_stmt= " CREATE TABLE IF NOT EXIST PERSON (ID INTEGER PRIMARY KEY AUTOINCREMENT,NAME TEXT,PRICE INTEGER)";
sqlite3_exec(items, sql_stmt, NULL, NULL, &error);
sqlite3_close(items);
NSLog(#"Db Created");
}
NSLog(#"%s", sqlite3_errmsg(items));
}
}

Answer 1

You are trying to write to the documentation directory, not the document directory.
Replace NSDocumentationDirectory with NSDocumentDirectory.

Answer 2

Try this tutorial
NSString *docsDir;
NSArray *dirPaths;
// Get the documents directory
dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
docsDir = [dirPaths objectAtIndex:0];
// Build the path to the 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, NAME TEXT, ADDRESS TEXT, PHONE TEXT)";
if (sqlite3_exec(contactDB, sql_stmt, NULL, NULL, &errMsg) != SQLITE_OK) {
status.text = #"Failed to create table";
}
sqlite3_close(contactDB);
}
else {
status.text = #"Failed to open/create database";
}
}

Answer 3

This will help u
#import<sqlite3.h>
-(BOOL)createTable
{
NSArray *yourArray=NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *filePath=[yourArray objectAtIndex:0];
filePath =[filePath stringByAppendingPathComponent:#"yourdatabase.sqlite"];
NSFileManager *manager=[NSFileManager defaultManager];
BOOL success = NO;
if ([manager fileExistsAtPath:filePath])
{
success =YES;
}
if (!success)
{
NSString *path2=[[[NSBundle mainBundle] resourcePath] stringByAppendingPathComponent:#"yourdatabase.sqlite"];
success =[manager copyItemAtPath:path2 toPath:filePath error:nil];
}
createStmt = nil;
NSString *tableName=#"SecondTable";
if (sqlite3_open([filePath UTF8String], &database) == SQLITE_OK) {
if (createStmt == nil) {
NSString *query=[NSString stringWithFormat:#"create table (ID INTEGER PRIMARY KEY AUTOINCREMENT,NAME TEXT,PRICE INTEGER)];
if (sqlite3_prepare_v2(database, [query UTF8String], -1, &createStmt, NULL) != SQLITE_OK) {
return NO;
}
sqlite3_exec(database, [query UTF8String], NULL, NULL, NULL);
return YES;
}
}
return YES;
}