# HG changeset patch
# User Nathan Phillip Brink <ohnobinki@ohnopublishing.net>
# Date 2011-01-01 02:15:45
# Node ID 830e818d262529a27b19d5d9a82aa49f57634f90
# Parent  250c30fbed1a866da91433996bcef0f33f9c7885

Support rehashing stuffage through the web interface. Only per-school rehashing is tested so far.

diff --git a/admin.php b/admin.php
--- a/admin.php
+++ b/admin.php
@@ -18,7 +18,9 @@
  * along with SlatePermutate.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-  include_once 'inc/class.page.php';
+require_once('inc/class.page.php');
+require_once('inc/admin.inc');
+
 
   $scripts = array('jQuery','jQueryUI'); 
   $adminpage = new page('Administration',$scripts,FALSE);
@@ -79,7 +81,17 @@
     $result = '';
     if(isset($_GET['rehash'])) {
       // Run the rehash
-      $result = 'Rehash Complete'; 
+
+      $crawl_schools = NULL;
+      if (isset($_REQUEST['rehash_school']))
+	$crawl_schools = array($_REQUEST['rehash_school']);
+
+      if (school_cache_recreate($crawl_schools))
+	$result = 'Rehash Failed';
+      else
+	$result = 'Rehash Successful';
+      if ($crawl_schools !== NULL)
+	$result .= ': ' . implode(', ', $crawl_schools);
     }
     else if(isset($_GET['purgetodate'])) {
       // Purge saved schedule cache up to date
@@ -102,28 +114,15 @@
     return date("F j, Y, g:i a", $stats[9]);
   }
 
-  function getSchools() {
-    if(!stat("cache/schools")){
-      return false;
-    }
-    $schoolsArr = unserialize(file_get_contents("cache/schools"));
-    return $schoolsArr;
-  }
-
-  function schoolsDropList(){
-    $schools = getSchools();
-    echo '<select>';
-    foreach($schools['list'] as $school){
-      if(!$school['name'] != "Generic College") {
-        echo '<option ';
-        if(!$school['crawled']) {
-          echo 'class="bold" ';
-        }
-        echo 'value="' . $school['name'] . '">';
-        echo $school['name'];   
-        echo "</option>";
+  function schoolsDropList()
+  {
+    $school_ids = school_list();
+    echo '<select name="rehash_school">';
+    foreach($school_ids as $school_id)
+      {
+	$school = school_load($school_id);
+	echo '  <option value="' . $school_id . '">' . $school['name'] . '</option>' . "\n";
       }
-    }
     echo "</select>";
   }
 
@@ -158,12 +157,19 @@
       }
 ?>
 <ul>
-  <li><a href="admin.php?rehash">Rehash All Institutions</a></li>
-  <li><form action="admin.php">Rehash schedules for <?php schoolsDropList(); ?> <input type="submit" value="Go &raquo;" /> </form></li>
+  <li>
+    <a href="admin.php?rehash">Rehash All Institutions</a>
+  </li>
+  <li>
+    <form action="admin.php">Rehash schedules for <?php schoolsDropList(); ?>
+      <input type="hidden" name="rehash" value="1" />
+      <input type="submit" value="Go &raquo;" />
+    </form>
+  </li>
 </ul>
 
 <h3>Purge</h3>
-<p>The cache currently contains <?php echo getNumSaved(); ?> schedules.</p>
+<p>The saved schedule fs-db currently contains <?php echo getNumSaved(); ?> schedules.</p>
 <ul>
   <li><a href="admin.php?purge">Purge Entire Cache</a></li>
   <li><form action="admin.php">Purge cache up to <input type="text" name="purgetodate" size="8" id="datepicker"/> <input type="submit" value="Go &raquo;" /></form></li>
diff --git a/admin/rehash.php b/admin/rehash.php
--- a/admin/rehash.php
+++ b/admin/rehash.php
@@ -44,10 +44,6 @@ function main($argc, $argv)
       return 1;
     }
 
-  $crawl = TRUE;
-  $crawl_semester_year = '2011';
-  $crawl_semester_season = Semester::SEASON_SPRING;
-
   $opts = getopt('hV:', array('no-crawl', 'crawl-only:', 'help', 'verbosity:'));
 
   if (isset($opts['help']) || isset($opts['h']))
@@ -56,6 +52,7 @@ function main($argc, $argv)
       return 0;
     }
 
+  $crawl = TRUE;
   if (isset($opts['no-crawl']))
     $crawl = FALSE;
   if (isset($opts['crawl-only']))
@@ -74,54 +71,18 @@ function main($argc, $argv)
       return 1;
     }
 
-  $school_id_list = school_list();
-  if (!$school_id_list)
-    {
-      fprintf(STDERR, "error: Unable to load schools.\n");
-      return 1;
-    }
-
-  $schools = array();
-  $old_school_cache = _school_cache_load();
-  foreach ($school_id_list as $school_id)
+  if ($crawl)
     {
-      $school = school_load($school_id, TRUE);
-      if (!$school)
+      $ret = school_cache_recreate($crawl_only);
+      if ($ret)
 	{
-	  fprintf(STDERR, "Error loading school with school_id=%s\n",
-		  $school_id);
+	  fprintf(STDERR, "error: Unable to successfully crawl schools.\n");
 	  return 1;
 	}
-
-      if ($crawl
-	  && (!isset($crawl_only) || in_array($school['id'], $crawl_only)))
-	{
-	  school_crawl($school, $crawl_semester_year, $crawl_semester_season, $verbosity);
-	}
       else
 	{
-	  /*
-	   * try to allow incremental crawling by not wiping out old
-	   * data and preserving the cached $school['crawled'].
-	   */
-	  if ($old_school_cache && isset($old_school_cache['list'][$school['id']]))
-	    {
-	      $old_school = $old_school_cache['list'][$school['id']];
-	      $school['crawled'] = FALSE;
-	      if (isset($old_school['crawled']))
-		$school['crawled'] = $old_school['crawled'];
-	      if ($school['crawled'])
-		$school['crawled_notreally'] = TRUE;
-	    }
+	  fprintf(STDERR, "Crawling successful.\n");
 	}
-
-      $schools[] = $school;
-    }
-
-  if (school_cache($schools))
-    {
-      fprintf(STDERR, "Error writing out school cache\n");
-      return 1;
     }
 
   return 0;
diff --git a/inc/admin.inc b/inc/admin.inc
--- a/inc/admin.inc
+++ b/inc/admin.inc
@@ -18,9 +18,12 @@
  * along with slate_permutate.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-$incdir = dirname(__FILE__) . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . 'inc' . DIRECTORY_SEPARATOR;
+$inc_dir = dirname(__FILE__) . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . 'inc' . DIRECTORY_SEPARATOR;
 
-require_once($incdir . 'schedule_store.inc');
+require_once($inc_dir . 'schedule_store.inc');
+require_once($inc_dir . 'class.semester.inc');
+require_once($inc_dir . 'school.inc');
+require_once($inc_dir . 'school.crawl.inc');
 
 /**
  * \file
@@ -239,6 +242,83 @@ function school_crawl(&$school, $semeste
     fwrite(STDERR, "\n");
 }
 
+
+/**
+ * \brief
+ *   Recreate/update the school section autocomplete cache.
+ *
+ * \param $crawl_only
+ *   If non-NULL, an array of school_ids to limit the cache recreation
+ *   to. Useful for when developing a certain school's crawling
+ *   function.
+ */
+function school_cache_recreate($crawl_only = NULL)
+{
+  $crawl_semester_year = '2011';
+  $crawl_semester_season = Semester::SEASON_SPRING;
+
+  $school_id_list = school_list();
+  if (!$school_id_list)
+    {
+      fprintf(STDERR, "error: Unable to load schools.\n");
+      return 1;
+    }
+
+  if ($crawl_only !== NULL)
+    foreach ($crawl_only as $crawl_only_school_id)
+      if (!in_array($crawl_only_school_id, $school_id_list))
+	{
+	  fprintf(STDERR, "error: Invalid school_id specified for crawling: %s",
+		  $crawl_only_school_id);
+	  return 1;
+	}
+
+  $schools = array();
+  $old_school_cache = _school_cache_load();
+  foreach ($school_id_list as $school_id)
+    {
+      $school = school_load($school_id, TRUE);
+      if (!$school)
+	{
+	  fprintf(STDERR, "Error loading school with school_id=%s\n",
+		  $school_id);
+	  return 1;
+	}
+
+      if ($crawl_only === NULL || in_array($school['id'], $crawl_only))
+	{
+	  school_crawl($school, $crawl_semester_year, $crawl_semester_season, $verbosity);
+	}
+      else
+	{
+	  /*
+	   * try to allow incremental crawling by not wiping out old
+	   * data and preserving the cached $school['crawled'].
+	   */
+	  if ($old_school_cache && isset($old_school_cache['list'][$school['id']]))
+	    {
+	      $old_school = $old_school_cache['list'][$school['id']];
+	      $school['crawled'] = FALSE;
+	      if (isset($old_school['crawled']))
+		$school['crawled'] = $old_school['crawled'];
+	      if ($school['crawled'])
+		$school['crawled_notreally'] = TRUE;
+	    }
+	}
+
+      $schools[] = $school;
+    }
+
+  if (school_cache($schools))
+    {
+      fprintf(STDERR, "Error writing out school cache\n");
+      return 1;
+    }
+
+  return 0;
+}
+
+
 /**
  * \brief
  *   A small testsuite to help developers.