File

modules/admin/admin.groups.inc, line 769

Code

function admin_get_courses_from_definition($definition, $catalog_year = "") {


  $group_array = array();

  // Okay, first things first, let's trim this sucker and remove extra whitespace.
  $definition = trim($definition);
  $definition = str_replace("   ", " ", $definition);
  $definition = str_replace("  ", " ", $definition);
  $definition = str_replace("  ", " ", $definition);

  // Okay, now let's break this up into lines...
  $d_lines = explode("\n", $definition);
  foreach ($d_lines as $line) 
   {
    $line = trim($line);

    // Let's get each of the parts... the instruction, and the course data.
    $tokens = explode(" ", $line);
    $instruction = strtolower(trim($tokens [0]));
    @$course_data = trim($tokens [1]);

    // We know that the course data can also be broken up, by the .
    $c_tokens = explode(".", $course_data);
    $subject_data = trim(strtoupper($c_tokens [0]));
    @$course_numData = trim(strtoupper($c_tokens [1]));

    // Okay, so now, for this line, we have an instruction,
    // and some course data (possibly wild cards) to act on.
    //debugCT("$instruction $subject_data $course_numData");

    $t_array = admin_get_course_array_from_definition_data($subject_data, $course_numData, $catalog_year);
    // Okay, we got our list.  Now what do we do with them?
    if ($instruction == "add" || $instruction == "+") 
     {
      $group_array = array_merge($group_array, $t_array);
      $group_array = array_unique($group_array);
    }

    if ($instruction == "remove" || $instruction == "rem" || $instruction == "-" || $instruction == "del") 
     {
      //print "<pre>" . print_r($t_array) . "</pre>";
      //debug_c_t(count($group_array));
      //$group_array = array_diff($group_array, $t_array);
      $group_array = admin_array_diff($group_array, $t_array);

      $group_array = array_unique($group_array);
      //debug_c_t(count($group_array));
    }



  }

  // Here's what we need to do:
  // In groupArray, we have the subject_id and course_num of every course in this definition.
  // We need to convert them to course_id's from the table,
  // and make sure we do not have duplicates.
  // First, get an array of course_id from the groupArray...
  $course_idArray = $group_array;
  // Take out duplicate entries (caused by eqv courses)...

  $course_idArray = array_unique($course_idArray);
  //print_r($course_idArray);
  //debugCT(sizeof($course_idArray));
  // Now, convert BACK into the "groupArray" structure (subject_id and course_num)...
  $group_array2 = admin_get_course_array_from_course_id_array($course_idArray);

  //print_r($group_array);

  // Place in alphabetical order.
  sort($group_array2);

  //var_dump($group_array2);

  $rtn = array();
  $rtn ["text"] = "";
  $count = 1;
  // Now that we have the groupArray, we will turn it into a string...
  for ($t = 0; $t < count($group_array2); $t++) 
   {
    $line = trim($group_array2 [$t]);
    if ($line == "~~" || $line == "") {
      continue;
    }
    $count++;
    $temp = explode(" ~~ ", $line);
    $si = trim($temp [0]);
    $cn = trim($temp [1]);

    @$rtn ["text"] .= "$si $cn\n";


  }
  $rtn ["text"] = str_replace("&", "_A_", $rtn ["text"]);
  //debug_c_t(count($group_array));
  $rtn ["count"] = $count;

  return $rtn;
}