88 lines
3.3 KiB
PHP
88 lines
3.3 KiB
PHP
<?php defined("SYSPATH") or die("No direct script access.");
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/**
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* Gallery - a web based photo album viewer and editor
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* Copyright (C) 2000-2013 Bharat Mediratta
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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class exif_gps_task_Core {
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static function available_tasks() {
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// Automatically delete extra exif_coordinates whenever the maintance screen is loaded.
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db::build()
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->delete("exif_coordinates")
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->where("item_id", "NOT IN",
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db::build()->select("id")->from("items"))
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->execute();
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// Display an option on the maintance screen for scanning existing photos
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// for GPS data (in case photos were uploaded before the module was active).
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return array(Task_Definition::factory()
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->callback("exif_gps_task::update_gps_index")
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->name(t("Extract Exif GPS data"))
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->description(t("Scan all photos for missing GPS data"))
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->severity(log::SUCCESS));
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}
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static function update_gps_index($task) {
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$start = microtime(true);
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// Figure out the total number of photos in the database.
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// If this is the first run, also set last_id and completed to 0.
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$total = $task->get("total");
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if (empty($total)) {
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$task->set("total", $total = count(ORM::factory("item")->where("type", "=", "photo")->find_all()));
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$task->set("last_id", 0);
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$task->set("completed", 0);
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}
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$last_id = $task->get("last_id");
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$completed = $task->get("completed");
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// Generate an array of the next 100 photos to check.
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// Check each photo in the array to see if it already has exif gps data associated with it.
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// If it doesn't, attempt to extract gps coordinates.
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foreach (ORM::factory("item")
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->where("id", ">", $last_id)
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->where("type", "=", "photo")
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->order_by("id")
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->find_all(100) as $item) {
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$record = ORM::factory("exif_coordinate")->where("item_id", "=", $item->id)->find();
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if (!$record->loaded()) {
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exif_gps::extract($item);
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}
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$last_id = $item->id;
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$completed++;
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if ($completed == $total || microtime(true) - $start > 1.5) {
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break;
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}
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}
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$task->set("completed", $completed);
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$task->set("last_id", $last_id);
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if ($total == $completed) {
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$task->done = true;
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$task->state = "success";
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$task->percent_complete = 100;
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} else {
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$task->percent_complete = round(100 * $completed / $total);
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}
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$task->status = t2("One photo scanned", "%count / %total photos scanned", $completed,
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array("total" => $total));
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}
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}
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