hook_cron

File

modules/advise/advise.module, line 265

Code

function advise_cron() {

  // Delete advising data which has been marked with "delete_flag = 1"

  $last_run = intval(variable_get("advise_last_run_delete_flag_removal", 0));
  $check_against = strtotime("NOW - 7 DAYS"); // don't run any more often than once every 7 days.
  $c = 0;
  if ($check_against > $last_run) {

    $res = db_query("SELECT * FROM advising_sessions 
                     WHERE delete_flag = 1 ");
    while ($cur = db_fetch_object($res)) {

      $asid = $cur->advising_session_id;


      // Delete courses that were part of this advising session.      
      db_query("DELETE FROM advised_courses WHERE advising_session_id = ?", array($asid));

      // Lastly, delete from advising_sessions table itself.
      db_query("DELETE FROM advising_sessions WHERE advising_session_id = ?", array($asid));
      watchdog("advise", "Deleted from flagged db deleted advising_session_id $asid", array(), WATCHDOG_DEBUG);
      $c++;
    } // while cur

    watchdog("advise", "Delete from flagged advising sessions db complete. $c items removed.", array(), WATCHDOG_DEBUG);


    $res = db_query("DELETE FROM student_substitutions WHERE delete_flag = 1");
    $c = db_affected_rows($res);
    watchdog("advise", "Delete from flagged student substitutions db complete. $c items removed.", array(), WATCHDOG_DEBUG);

    $res = db_query("DELETE FROM student_unassign_group WHERE delete_flag = 1");
    $c = db_affected_rows($res);
    watchdog("advise", "Delete from flagged student unassign group db complete. $c items removed.", array(), WATCHDOG_DEBUG);

    $res = db_query("DELETE FROM student_unassign_transfer_eqv WHERE delete_flag = 1");
    $c = db_affected_rows($res);
    watchdog("advise", "Delete from flagged student unassign transfer eqv db complete. $c items removed.", array(), WATCHDOG_DEBUG);


    variable_set("advise_last_run_delete_flag_removal", time());


  } // check against > last_run, so we should do it.



}