how to store in sqlite database from json - ios

Question

I create one application and I read many data in table View from JSON and I want parsed this JSON and store in sqlite but I dont know from where should I start?
this is parsed my json code :
#implementation TableViewController
{
NSArray *news;
NSMutableData *data;
NSString *title;
NSMutableArray *all;
}
#synthesize mainTable;
- (void)viewDidLoad
{
[super viewDidLoad];
self.title = #"News";
[UIApplication sharedApplication].networkActivityIndicatorVisible = YES;
NSURL *url = [NSURL URLWithString:#"http://zacandcatie.com/YouTube/json.php"];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
NSURLConnection *con = [[NSURLConnection alloc] initWithRequest:request delegate:self];
[con start];
}
- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
data = [[NSMutableData alloc]init];
}
- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)theData
{
[data appendData:theData];
}
- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
[UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
news = [NSJSONSerialization JSONObjectWithData:data options:kNilOptions error:nil];
for (int i =0; i < [news count]; i++)
{
NSIndexPath *indexPath = [self.mainTable indexPathForSelectedRow];
title =[[news objectAtIndex:indexPath.row+i]objectForKey:#"title"];
if (!all) {
all = [NSMutableArray array];
}
[all addObject:title];
}
NSLog(#"%#",all);
[mainTable reloadData];
}
- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
UIAlertView *errorView = [[UIAlertView alloc]initWithTitle:#"Error" message:#"The Connection has been LOST" delegate:self cancelButtonTitle:#"OK" otherButtonTitles: nil];
[errorView show];
[UIApplication sharedApplication].networkActivityIndicatorVisible = NO;
}
you my json url. I want store "title"&"date_string" value in sqlite.
please guide me!!!

Answer 1

After parsing you data in the form of NSDictionary you can create a query of insert into and fire the query n your data will be save into your database

Answer 2

-(void)InsertRecords:(NSMutableDictionary *)dict
{
sqlite3_stmt *stmt;
sqlite3 *cruddb;
NSMutableString *str = [NSMutableString stringWithFormat:#"Insert into tblName ("];
for (int i = 0; i<[[dict allKeys] count]; i++)
{
[str appendFormat:#"%#,",[[dict allKeys] objectAtIndex:i]];
}
[str appendFormat:#")values ("];
for (int i = 0; i<[[dict allKeys] count]; i++)
{
[str appendFormat:#"%#,",[dict valueForKey:[[dict allKeys] objectAtIndex:i]]];
}
[str appendFormat:#");"];
NSLog(#"qry : %#",str);
const char *sql = [str UTF8String]; ;
if((sqlite3_open([database UTF8String], &cruddb)==SQLITE_OK))
{
if (sqlite3_prepare(database, sql, -1, &stmt, NULL) ==SQLITE_OK)
{
sqlite3_step(stmt);
sqlite3_finalize(stmt);
}
else
{
NSLog(#"Problem with prepare statement: %s", sqlite3_errmsg(database));
}
sqlite3_close(database);
}
else
{
NSLog(#"An error has occured: %s",sqlite3_errmsg(database));
}
}
Try this.

Answer 3

Continuing #Divz Ans...
you will have create the .sqlite file. And there is nothing easier than this.
There are two ways(that i know) to create sqlite file,
1> you can download SQLite Manager add-on in firefox, where you can manipulate data in database graphically.
Or,
2> you can use Terminal with a single line command, sqlite3 dbFileName.sqlite. enter,
where you will get sqlite> now start with further SQL(create/insert/update..) queries.
you can find your sqlite file at MacHD>users>admin(not shared one)>yourFile.sqlite or, finder---go>home>yourFile.sqlite

Answer 4

static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
db=[[SKDatabase alloc]initWithFile:#"student.sqlite"];
NSURL *url=[NSURL URLWithString:#"..........Your Url............"];
NSURLRequest *json_request=[[NSURLRequest alloc]initWithURL:url];
NSData *data=[NSURLConnection sendSynchronousRequest:json_request returningResponse:nil error:nil];
NSMutableDictionary *dic=[NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
NSMutableArray *student_ary=[dic objectForKey:#"students"];
for (NSMutableArray *student_info in student_ary) {
NSMutableDictionary *insert=[[NSMutableDictionary alloc]initWithCapacity:2];
NSMutableDictionary *info=[student_info mutableCopy];
[insert setObject:[info objectForKey:#"name"] forKey:#"name"];
[insert setObject:[info objectForKey:#"city"] forKey:#"city"];
[db insertDictionary:insert forTable:#"student_info"];
}
})
//.m file view....
-(void)viewDidAppear:(BOOL)animated
{
NSString *qry=#"select * from student_info";
ary=[[db lookupAllForSQL:qry] mutableCopy];
[tableView reloadData];
}

Answer 5

You can do some thing like this :
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
// tableview cell setup
NSArray* keys = [self.data allKeys];
cell.textLabel.text = [self.data objectForKey:[keys objectAtIndex:indexPath.row]];
return cell;
}
Please refer this links to have data in order in dictionary
NSDictionary with ordered keys