--TEST--
Transaction operations: rolled-back transactions
--SKIPIF--
--FILE--
<?php

require_once("MsCommon.inc");

function PrintContent($conn, $tableName)
{
    $query = "SELECT * FROM $tableName";
    $stmt = sqlsrv_query($conn, $query);
    // Fetch the first row
    $row = sqlsrv_fetch_array($stmt, SQLSRV_FETCH_ASSOC);
    print_r($row);
}

// connect
$conn = connect();
if (!$conn) {
    fatalError("Connection could not be established.\n");
}

$tableName = GetTempTableName();

// Create table
$sql = "CREATE TABLE $tableName (
            GroupId VARCHAR(10) primary key, Accepted INT,
            Tentative INT NOT NULL CHECK (Tentative >= 0))";
$stmt = sqlsrv_query($conn, $sql);


// Set initial data
$sql = "INSERT INTO $tableName VALUES ('ID1','12','5'),('ID102','20','1')";
$stmt = sqlsrv_query($conn, $sql) ?: die(print_r(sqlsrv_errors(), true));

//Initiate transaction
sqlsrv_begin_transaction($conn) ?: die(print_r(sqlsrv_errors(), true));

// Update parameters
$count = 8;
$groupId = "ID1";
$params = array($count, $groupId);

// Update Accepted column
$sql = "UPDATE $tableName SET Accepted = (Accepted + ?) WHERE GroupId = ?";
$stmt1 = sqlsrv_query($conn, $sql, $params) ?: die(print_r(sqlsrv_errors(), true));

// Update Tentative column
// This statement returns FALSE because Tentative column should be non-negative
$sql = "UPDATE $tableName SET Tentative = (Tentative - ?) WHERE GroupId = ?";
$stmt2 = sqlsrv_query($conn, $sql, $params);

// Commit the transactions
if ($stmt1 && $stmt2) {
    echo "\nERROR: $stmt2 should be bool(false)\n";
} else {
    sqlsrv_rollback($conn);
}

PrintContent($conn, $tableName);

sqlsrv_free_stmt($stmt);
sqlsrv_close($conn);
print "Done"
?>

--EXPECT--
Array
(
    [GroupId] => ID1
    [Accepted] => 12
    [Tentative] => 5
)
Done