Trouble posting to database, from iOS app - ios

Question

I'm having a problem updating my database from an iOS app...
Sql statements
<?php
// Create connection
$con=mysqli_connect("server_name","user_name","user_code","table_name");
// Check connection
if (mysqli_connect_errno())
{
echo "Failed to connect to MySQL: " . mysqli_connect_error();
}
// This SQL statement selects ALL from the table 'table.name'
$sql = "SELECT * table_name";
// Check if there are results
if ($result = mysqli_query($con, $sql))
{
// If so, then create a results array and a temporary one
// to hold the data
$resultArray = array();
$tempArray = array();
// Loop through each row in the result set
while($row = $result->fetch_object())
{
// Add each row into our results array
$tempArray = $row;
array_push($resultArray, $tempArray);
}
// Finally, encode the array to JSON and output the results
echo json_encode($resultArray);
}
$sql = "INSERT INTO table_name (column_name) VALUES('1')";
// Close connections
mysqli_close($result);
mysqli_close($con);
?>
My iOS code
for (Tickets *items in _feedItems){
if ([resultText.text isEqual:(id) items.ticketNumber]) {
status.text = #"Match found";
//Contacting database------------------------------
NSString *strURL = [NSString stringWithFormat:#"TicketDate=%#", items.ticketDate];
NSData *postData = [strURL dataUsingEncoding:NSASCIIStringEncoding
allowLossyConversion:YES];
NSString *postLength = [NSString stringWithFormat:#"%d",[postData length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init];
[request setURL:[NSURL URLWithString:#"http://webservice.com"]];
[request setHTTPMethod:#"POST"];
[request setValue:postLength forHTTPHeaderField:#"Content-Length"];
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"Current-
Type"];
[request setHTTPBody:postData];
NSURLConnection *conn = [[NSURLConnection alloc]initWithRequest:request delegate:self];
if(conn)
{
NSLog(#"Connection Successful");
}
else
{
NSLog(#"Connection could not be made");
}
//Contacting database END-------------------------------------------
break;
}else {
status.text = #"Match not found";
}
}
I get a Connection Succesful from the NSLog but there is nothing getting updated in my database.
I'm trying to manually type in a ticket number with an app, and if that matches with a ticket in the database (it works), then I want the the ticketDate to change from 0 to 1.
But it does not change :/

Answer 1

You are not calling
[conn start];
to have your request effectively sent. I.e.:
NSURLConnection *conn = [[NSURLConnection alloc]initWithRequest:request delegate:self];
[conn start];
You should also be aware that the request will be sent asynchronously, this means that you will not get the response right after calling start. What you should do, if you want to stay with an async connection, is implement a data delegate, and at least its – connection:didReceiveData:, – connectionDidFinishLoading:, and connection:didFailLoadingWithError: methods.
Alternatively, you might consider sending the request synchronously, i.e., just replacing
NSURLConnection *conn = [[NSURLConnection alloc]initWithRequest:request delegate:self];
with:
[NSURLConnection sendSynchronousRequest:request returningResponse:nil error:nil];
But this kind os request will block your app UI, unless you send them on a background thread.

Answer 2

In the database I have a row with a ticketNumber and ticketDate. If the number typed into my app is the same as a ticketNumber in my database, then i want the same row's ticketDate to change from 0 to 1.