1 files changed, 88 insertions, 0 deletions
diff --git a/modules/exif/helpers/exif_task.php b/modules/exif/helpers/exif_task.php
new file mode 100644
index 0000000..f8a108a
--- /dev/null
+++ b/modules/exif/helpers/exif_task.php
@@ -0,0 +1,88 @@
+<?php defined("SYSPATH") or die("No direct script access.");
+/**
+ * Gallery - a web based photo album viewer and editor
+ * Copyright (C) 2000-2013 Bharat Mediratta
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+class exif_task_Core {
+  static function available_tasks() {
+    // Delete extra exif_records
+    db::build()
+      ->delete("exif_records")
+      ->where("item_id", "NOT IN",
+              db::build()->select("id")->from("items")->where("type", "=", "photo"))
+      ->execute();
+
+    list ($remaining, $total, $percent) = exif::stats();
+    return array(Task_Definition::factory()
+                 ->callback("exif_task::update_index")
+                 ->name(t("Extract Exif data"))
+                 ->description($remaining
+                               ? t2("1 photo needs to be scanned",
+                                    "%count (%percent%) of your photos need to be scanned",
+                                    $remaining, array("percent" => (100 - $percent)))
+                               : t("Exif data is up-to-date"))
+                 ->severity($remaining ? log::WARNING : log::SUCCESS));
+  }
+
+  static function update_index($task) {
+    try {
+      $completed = $task->get("completed", 0);
+
+      $start = microtime(true);
+      foreach (ORM::factory("item")
+               ->join("exif_records", "items.id", "exif_records.item_id", "left")
+               ->where("type", "=", "photo")
+               ->and_open()
+               ->where("exif_records.item_id", "IS", null)
+               ->or_where("exif_records.dirty", "=", 1)
+               ->close()
+               ->find_all(100) as $item) {
+        // The query above can take a long time, so start the timer after its done
+        // to give ourselves a little time to actually process rows.
+        if (!isset($start)) {
+          $start = microtime(true);
+        }
+
+        exif::extract($item);
+        $completed++;
+
+        if (microtime(true) - $start > .75) {
+          break;
+        }
+      }
+
+      list ($remaining, $total, $percent) = exif::stats();
+      $task->set("completed", $completed);
+      if ($remaining == 0 || !($remaining + $completed)) {
+        $task->done = true;
+        $task->state = "success";
+        site_status::clear("exif_index_out_of_date");
+        $task->percent_complete = 100;
+      } else {
+        $task->percent_complete = round(100 * $completed / ($remaining + $completed));
+      }
+      $task->status = t2("one record updated, index is %percent% up-to-date",
+                         "%count records updated, index is %percent% up-to-date",
+                         $completed, array("percent" => $percent));
+    } catch (Exception $e) {
+      $task->done = true;
+      $task->state = "error";
+      $task->status = $e->getMessage();
+      $task->log((string)$e);
+    }
+  }
+}