Ventas_Sql_Sub.php

<?php

try
{
    //Open database connection
    $con = mysql_connect("localhost","root","itesm");
    mysql_select_db("sgv", $con);
    $ID=$_GET["ID"];
    //Getting records (listAction)
    if(($_GET["ID"] != "") & ($_GET["action"] == "list"))
    {
        //Get record count
        $result = mysql_query("SELECT COUNT(*) AS RecordCount FROM detalle_venta ;");
        $row = mysql_fetch_array($result);
        $recordCount = $row['RecordCount'];

        //Get records from database
        $result = mysql_query("
            SELECT detalle_venta.* ,producto.ID_Producto, producto.Descripcion
            FROM detalle_venta, producto
            WHERE detalle_venta.ID_Venta='" . $_GET["ID"] . "'
            AND producto.ID_Producto=detalle_venta.ID_Producto;");


        //Add all records to an array
        $rows = array();
        while($row = mysql_fetch_array($result))
        {
            $rows[] = $row;
        }

        //Return result to jTable
        $jTableResult1 = array();
        $jTableResult1['Result'] = "OK";
        $jTableResult1['TotalRecordCount'] = $recordCount;
        $jTableResult1['Records'] = $rows;
        print json_encode($jTableResult1);
    }

        else if(($_GET["ID"] != "") & ($_GET["action"] == "create"))
    {
        //Insert record into database
        $result = mysql_query("INSERT INTO detalle_venta(ID_Venta, ID_Producto, Descuento, Impuesto, Precio_Venta, Cantidad, Subtotal) VALUES('" . $_GET["ID"] . "', '" . $_POST["DD_Producto"] . "'," . $_POST["Descuento"] . "," . $_POST["Impuesto"] . ",'" . $_POST["Precio_Venta"] . "','" . $_POST["Cantidad"] . "', '0');");
        $sql1 = mysql_query("UPDATE producto SET Existencia = Existencia - " . $_POST["Cantidad"] . " WHERE ID_Producto = '" . $_POST["DD_Producto"] . "';");
        $sql2 = mysql_query("SELECT @cantidad:= Cantidad FROM detalle_venta WHERE IDT = LAST_INSERT_ID();");
        $sql3 = mysql_query("SELECT @precio_venta:= Precio_Venta FROM detalle_venta WHERE IDT = LAST_INSERT_ID();");
        $sql4 = mysql_query("UPDATE detalle_venta SET Subtotal = (@cantidad*@precio_venta)+((@cantidad*@precio_venta*" . $_POST["Impuesto"] . ")/100) - ((@cantidad*@precio_venta*" . $_POST["Descuento"] . ")/100) WHERE IDT = LAST_INSERT_ID();");
        $sql5 = mysql_query("SELECT @subtotal:= Subtotal FROM detalle_venta WHERE IDT = LAST_INSERT_ID();");
        $sql6 = mysql_query("UPDATE ventas SET Precio_Total = Precio_Total + @subtotal WHERE ID_Venta = '" . $_GET["ID"] . "';");
        //$ultimo_id = mysql_insert_id($con);

        //Get last inserted record (to return to jTable)
        //$result = mysql_query("SELECT * FROM detalle_venta WHERE ID_Venta = LAST_INSERT_ID();");

        //$result = mysql_query("SELECT * FROM detalle_venta WHERE ID_Venta='" . $_POST["ID_Venta"] . "';");
        $result = mysql_query("SELECT *,descripcion FROM detalle_venta,producto WHERE IDT = LAST_INSERT_ID();");
        $row = mysql_fetch_array($result);

        //Return result to jTable
        $jTableResult = array();
        $jTableResult['Result'] = "OK";
        $jTableResult['Record'] = $row;
        print json_encode($jTableResult);
    }

        //Updating a record (updateAction) Not completed ! Añadir ID_DetVenta
    else if(($_GET["ID"] != "") & ($_GET["action"] == "update"))
    {
        //Update record in database

        $result = mysql_query("UPDATE detalle_venta SET Cantidad= '" . $_POST["Cantidad"] . "', Precio_Venta= " . $_POST["Precio_Venta"] . ", Descuento= " . $_POST["Descuento"] . ", Impuesto= '" . $_POST["Impuesto"] . "' WHERE IDT = '" . $_POST["IDT"] . "';");

        //Return result to jTable
        $jTableResult = array();
        $jTableResult['Result'] = "OK";
        print json_encode($jTableResult);
    }

    //Deleting a record (deleteAction) /Incomplete
    else if(($_GET["action"] == "delete"))
    {
        //Delete from database
        $exist = mysql_query("SELECT @ex:= Cantidad FROM detalle_venta WHERE IDT = " . $_POST["IDT"] . ";");
        $product = mysql_query("SELECT @pro:= ID_Producto FROM detalle_venta WHERE IDT = " . $_POST["IDT"] . ";");
        $sqlexistencias = mysql_query("UPDATE producto SET Existencia = Existencia + @ex WHERE ID_Producto = @pro;");

        $sql5 = mysql_query("SELECT @idventa:= ID_Venta FROM detalle_venta WHERE IDT = " . $_POST["IDT"] . ";");
        $sql5 = mysql_query("SELECT @subtotal:= Subtotal FROM detalle_venta WHERE IDT = " . $_POST["IDT"] . ";");
        $sql6 = mysql_query("UPDATE ventas SET Precio_Total = Precio_Total - @subtotal WHERE ID_Venta = @idventa;");

        $result = mysql_query("DELETE FROM detalle_venta WHERE IDT = " . $_POST["IDT"] . ";");
        //Return result to jTable
        $jTableResult = array();
        $jTableResult['Result'] = "OK";
        print json_encode($jTableResult);
    }

    else if($_GET["action"] == "dropdown_producto"){

$result = mysql_query("SELECT ID_Producto, Descripcion,Precio_Venta FROM producto ORDER BY ID_Producto");
   //Add all records to an array
   $rows = array();
   while ($row = mysql_fetch_array($result)) {
         $rows[] = array(
         'Value' => $row['ID_Producto'],
         'DisplayText' => $row['Descripcion']
         );
   }

   $result = array('Result' => 'OK',
            'Options' => $rows);
   print json_encode($result);

}




    //Close database connection
    mysql_close($con);

}
catch(Exception $ex)
{
    //Return error message
    $jTableResult = array();
    $jTableResult['Result'] = "ERROR";
    $jTableResult['Message'] = $ex->getMessage();
    print json_encode($jTableResult);
}

?>