Merge pull request #764 from ArthurHoaro/feature/history

History mechanism

4 files changed, 380 insertions, 18 deletions

diff --git a/tests/FileUtilsTest.php b/tests/FileUtilsTest.php
new file mode 100644
index 00000000..d764e495
--- /dev/null
+++ b/tests/FileUtilsTest.php
@@ -0,0 +1,108 @@
+<?php
+
+require_once 'application/FileUtils.php';
+
+/**
+ * Class FileUtilsTest
+ *
+ * Test file utility class.
+ */
+class FileUtilsTest extends PHPUnit_Framework_TestCase
+{
+    /**
+     * @var string Test file path.
+     */
+    protected static $file = 'sandbox/flat.db';
+
+    /**
+     * Delete test file after every test.
+     */
+    public function tearDown()
+    {
+        @unlink(self::$file);
+    }
+
+    /**
+     * Test writeDB, then readDB with different data.
+     */
+    public function testSimpleWriteRead()
+    {
+        $data = ['blue', 'red'];
+        $this->assertTrue(FileUtils::writeFlatDB(self::$file, $data) > 0);
+        $this->assertTrue(startsWith(file_get_contents(self::$file), '<?php /*'));
+        $this->assertEquals($data, FileUtils::readFlatDB(self::$file));
+
+        $data = 0;
+        $this->assertTrue(FileUtils::writeFlatDB(self::$file, $data) > 0);
+        $this->assertEquals($data, FileUtils::readFlatDB(self::$file));
+
+        $data = null;
+        $this->assertTrue(FileUtils::writeFlatDB(self::$file, $data) > 0);
+        $this->assertEquals($data, FileUtils::readFlatDB(self::$file));
+
+        $data = false;
+        $this->assertTrue(FileUtils::writeFlatDB(self::$file, $data) > 0);
+        $this->assertEquals($data, FileUtils::readFlatDB(self::$file));
+    }
+
+    /**
+     * File not writable: raise an exception.
+     *
+     * @expectedException IOException
+     * @expectedExceptionMessage Error accessing "sandbox/flat.db"
+     */
+    public function testWriteWithoutPermission()
+    {
+        touch(self::$file);
+        chmod(self::$file, 0440);
+        FileUtils::writeFlatDB(self::$file, null);
+    }
+
+    /**
+     * Folder non existent: raise an exception.
+     *
+     * @expectedException IOException
+     * @expectedExceptionMessage Error accessing "nopefolder"
+     */
+    public function testWriteFolderDoesNotExist()
+    {
+        FileUtils::writeFlatDB('nopefolder/file', null);
+    }
+
+    /**
+     * Folder non writable: raise an exception.
+     *
+     * @expectedException IOException
+     * @expectedExceptionMessage Error accessing "sandbox"
+     */
+    public function testWriteFolderPermission()
+    {
+        chmod(dirname(self::$file), 0555);
+        try {
+            FileUtils::writeFlatDB(self::$file, null);
+        } catch (Exception $e) {
+            chmod(dirname(self::$file), 0755);
+            throw $e;
+        }
+    }
+
+    /**
+     * Read non existent file, use default parameter.
+     */
+    public function testReadNotExistentFile()
+    {
+        $this->assertEquals(null, FileUtils::readFlatDB(self::$file));
+        $this->assertEquals(['test'], FileUtils::readFlatDB(self::$file, ['test']));
+    }
+
+    /**
+     * Read non readable file, use default parameter.
+     */
+    public function testReadNotReadable()
+    {
+        touch(self::$file);
+        chmod(self::$file, 0220);
+        $this->assertEquals(null, FileUtils::readFlatDB(self::$file));
+        $this->assertEquals(['test'], FileUtils::readFlatDB(self::$file, ['test']));
+    }
+}
diff --git a/tests/HistoryTest.php b/tests/HistoryTest.php
new file mode 100644
index 00000000..91525845
--- /dev/null
+++ b/tests/HistoryTest.php
@@ -0,0 +1,207 @@
+<?php
+
+require_once 'application/History.php';
+
+
+class HistoryTest extends PHPUnit_Framework_TestCase
+{
+    /**
+     * @var string History file path
+     */
+    protected static $historyFilePath = 'sandbox/history.php';
+
+    /**
+     * Delete history file.
+     */
+    public function tearDown()
+    {
+        @unlink(self::$historyFilePath);
+    }
+
+    /**
+     * Test that the history file is created if it doesn't exist.
+     */
+    public function testConstructLazyLoading()
+    {
+        new History(self::$historyFilePath);
+        $this->assertFileNotExists(self::$historyFilePath);
+    }
+
+    /**
+     * Test that the history file is created if it doesn't exist.
+     */
+    public function testAddEventCreateFile()
+    {
+        $history = new History(self::$historyFilePath);
+        $history->updateSettings();
+        $this->assertFileExists(self::$historyFilePath);
+    }
+
+    /**
+     * Not writable history file: raise an exception.
+     *
+     * @expectedException Exception
+     * @expectedExceptionMessage History file isn't readable or writable
+     */
+    public function testConstructNotWritable()
+    {
+        touch(self::$historyFilePath);
+        chmod(self::$historyFilePath, 0440);
+        $history = new History(self::$historyFilePath);
+        $history->updateSettings();
+    }
+
+    /**
+     * Not parsable history file: raise an exception.
+     *
+     * @expectedException Exception
+     * @expectedExceptionMessageRegExp /Could not parse history file/
+     */
+    public function testConstructNotParsable()
+    {
+        file_put_contents(self::$historyFilePath, 'not parsable');
+        $history = new History(self::$historyFilePath);
+        // gzinflate generates a warning
+        @$history->updateSettings();
+    }
+
+    /**
+     * Test add link event
+     */
+    public function testAddLink()
+    {
+        $history = new History(self::$historyFilePath);
+        $history->addLink(['id' => 0]);
+        $actual = $history->getHistory()[0];
+        $this->assertEquals(History::CREATED, $actual['event']);
+        $this->assertTrue(new DateTime('-2 seconds') < DateTime::createFromFormat(DateTime::ATOM, $actual['datetime']));
+        $this->assertEquals(0, $actual['id']);
+
+        $history = new History(self::$historyFilePath);
+        $history->addLink(['id' => 1]);
+        $actual = $history->getHistory()[0];
+        $this->assertEquals(History::CREATED, $actual['event']);
+        $this->assertTrue(new DateTime('-2 seconds') < DateTime::createFromFormat(DateTime::ATOM, $actual['datetime']));
+        $this->assertEquals(1, $actual['id']);
+
+        $history = new History(self::$historyFilePath);
+        $history->addLink(['id' => 'str']);
+        $actual = $history->getHistory()[0];
+        $this->assertEquals(History::CREATED, $actual['event']);
+        $this->assertTrue(new DateTime('-2 seconds') < DateTime::createFromFormat(DateTime::ATOM, $actual['datetime']));
+        $this->assertEquals('str', $actual['id']);
+    }
+
+    /**
+     * Test updated link event
+     */
+    public function testUpdateLink()
+    {
+        $history = new History(self::$historyFilePath);
+        $history->updateLink(['id' => 1]);
+        $actual = $history->getHistory()[0];
+        $this->assertEquals(History::UPDATED, $actual['event']);
+        $this->assertTrue(new DateTime('-2 seconds') < DateTime::createFromFormat(DateTime::ATOM, $actual['datetime']));
+        $this->assertEquals(1, $actual['id']);
+    }
+
+    /**
+     * Test delete link event
+     */
+    public function testDeleteLink()
+    {
+        $history = new History(self::$historyFilePath);
+        $history->deleteLink(['id' => 1]);
+        $actual = $history->getHistory()[0];
+        $this->assertEquals(History::DELETED, $actual['event']);
+        $this->assertTrue(new DateTime('-2 seconds') < DateTime::createFromFormat(DateTime::ATOM, $actual['datetime']));
+        $this->assertEquals(1, $actual['id']);
+    }
+
+    /**
+     * Test updated settings event
+     */
+    public function testUpdateSettings()
+    {
+        $history = new History(self::$historyFilePath);
+        $history->updateSettings();
+        $actual = $history->getHistory()[0];
+        $this->assertEquals(History::SETTINGS, $actual['event']);
+        $this->assertTrue(new DateTime('-2 seconds') < DateTime::createFromFormat(DateTime::ATOM, $actual['datetime']));
+        $this->assertEmpty($actual['id']);
+    }
+
+    /**
+     * Make sure that new items are stored at the beginning
+     */
+    public function testHistoryOrder()
+    {
+        $history = new History(self::$historyFilePath);
+        $history->updateLink(['id' => 1]);
+        $actual = $history->getHistory()[0];
+        $this->assertEquals(History::UPDATED, $actual['event']);
+        $this->assertTrue(new DateTime('-2 seconds') < DateTime::createFromFormat(DateTime::ATOM, $actual['datetime']));
+        $this->assertEquals(1, $actual['id']);
+
+        $history->addLink(['id' => 1]);
+        $actual = $history->getHistory()[0];
+        $this->assertEquals(History::CREATED, $actual['event']);
+        $this->assertTrue(new DateTime('-2 seconds') < DateTime::createFromFormat(DateTime::ATOM, $actual['datetime']));
+        $this->assertEquals(1, $actual['id']);
+    }
+
+    /**
+     * Re-read history from file after writing an event
+     */
+    public function testHistoryRead()
+    {
+        $history = new History(self::$historyFilePath);
+        $history->updateLink(['id' => 1]);
+        $history = new History(self::$historyFilePath);
+        $actual = $history->getHistory()[0];
+        $this->assertEquals(History::UPDATED, $actual['event']);
+        $this->assertTrue(new DateTime('-2 seconds') < DateTime::createFromFormat(DateTime::ATOM, $actual['datetime']));
+        $this->assertEquals(1, $actual['id']);
+    }
+
+    /**
+     * Re-read history from file after writing an event and make sure that the order is correct
+     */
+    public function testHistoryOrderRead()
+    {
+        $history = new History(self::$historyFilePath);
+        $history->updateLink(['id' => 1]);
+        $history->addLink(['id' => 1]);
+
+        $history = new History(self::$historyFilePath);
+        $actual = $history->getHistory()[0];
+        $this->assertEquals(History::CREATED, $actual['event']);
+        $this->assertTrue(new DateTime('-2 seconds') < DateTime::createFromFormat(DateTime::ATOM, $actual['datetime']));
+        $this->assertEquals(1, $actual['id']);
+
+        $actual = $history->getHistory()[1];
+        $this->assertEquals(History::UPDATED, $actual['event']);
+        $this->assertTrue(new DateTime('-2 seconds') < DateTime::createFromFormat(DateTime::ATOM, $actual['datetime']));
+        $this->assertEquals(1, $actual['id']);
+    }
+
+    /**
+     * Test retention time: delete old entries.
+     */
+    public function testHistoryRententionTime()
+    {
+        $history = new History(self::$historyFilePath, 5);
+        $history->updateLink(['id' => 1]);
+        $this->assertEquals(1, count($history->getHistory()));
+        $arr = $history->getHistory();
+        $arr[0]['datetime'] = (new DateTime('-1 hour'))->format(DateTime::ATOM);
+        FileUtils::writeFlatDB(self::$historyFilePath, $arr);
+
+        $history = new History(self::$historyFilePath, 60);
+        $this->assertEquals(1, count($history->getHistory()));
+        $this->assertEquals(1, $history->getHistory()[0]['id']);
+        $history->updateLink(['id' => 2]);
+        $this->assertEquals(1, count($history->getHistory()));
+        $this->assertEquals(2, $history->getHistory()[0]['id']);
+    }
+}
diff --git a/tests/LinkDBTest.php b/tests/LinkDBTest.php
index 1f62a34a..7bf98f92 100644
--- a/tests/LinkDBTest.php
+++ b/tests/LinkDBTest.php
@@ -101,7 +101,7 @@ class LinkDBTest extends PHPUnit_Framework_TestCase
      * Attempt to instantiate a LinkDB whereas the datastore is not writable
      *
      * @expectedException              IOException
-     * @expectedExceptionMessageRegExp /Error accessing\nnull/
+     * @expectedExceptionMessageRegExp /Error accessing "null"/
      */
     public function testConstructDatastoreNotWriteable()
     {
diff --git a/tests/NetscapeBookmarkUtils/BookmarkImportTest.php b/tests/NetscapeBookmarkUtils/BookmarkImportTest.php
index 5925a8e1..f838f259 100644
--- a/tests/NetscapeBookmarkUtils/BookmarkImportTest.php
+++ b/tests/NetscapeBookmarkUtils/BookmarkImportTest.php
@@ -34,6 +34,11 @@ class BookmarkImportTest extends PHPUnit_Framework_TestCase
     protected static $testDatastore = 'sandbox/datastore.php';
 
     /**
+     * @var string History file path
+     */
+    protected static $historyFilePath = 'sandbox/history.php';
+
+    /**
      * @var LinkDB private LinkDB instance
      */
     protected $linkDb = null;
@@ -49,6 +54,11 @@ class BookmarkImportTest extends PHPUnit_Framework_TestCase
     protected $conf;
 
     /**
+     * @var History instance.
+     */
+    protected $history;
+
+    /**
      * @var string Save the current timezone.
      */
     protected static $defaultTimeZone;
@@ -73,6 +83,15 @@ class BookmarkImportTest extends PHPUnit_Framework_TestCase
         $this->linkDb = new LinkDB(self::$testDatastore, true, false);
         $this->conf = new ConfigManager('tests/utils/config/configJson');
         $this->conf->set('resource.page_cache', $this->pagecache);
+        $this->history = new History(self::$historyFilePath);
+    }
+
+    /**
+     * Delete history file.
+     */
+    public function tearDown()
+    {
+        @unlink(self::$historyFilePath);
     }
 
     public static function tearDownAfterClass()
@@ -89,7 +108,7 @@ class BookmarkImportTest extends PHPUnit_Framework_TestCase
         $this->assertEquals(
             'File empty.htm (0 bytes) has an unknown file format.'
             .' Nothing was imported.',
-            NetscapeBookmarkUtils::import(NULL, $files, NULL, $this->conf)
+            NetscapeBookmarkUtils::import(null, $files, null, $this->conf, $this->history)
         );
         $this->assertEquals(0, count($this->linkDb));
     }
@@ -102,7 +121,7 @@ class BookmarkImportTest extends PHPUnit_Framework_TestCase
         $files = file2array('no_doctype.htm');
         $this->assertEquals(
             'File no_doctype.htm (350 bytes) has an unknown file format. Nothing was imported.',
-            NetscapeBookmarkUtils::import(NULL, $files, NULL, $this->conf)
+            NetscapeBookmarkUtils::import(null, $files, null, $this->conf, $this->history)
         );
         $this->assertEquals(0, count($this->linkDb));
     }
@@ -116,7 +135,7 @@ class BookmarkImportTest extends PHPUnit_Framework_TestCase
         $this->assertEquals(
             'File internet_explorer_encoding.htm (356 bytes) was successfully processed:'
             .' 1 links imported, 0 links overwritten, 0 links skipped.',
-            NetscapeBookmarkUtils::import(array(), $files, $this->linkDb, $this->conf)
+            NetscapeBookmarkUtils::import([], $files, $this->linkDb, $this->conf, $this->history)
         );
         $this->assertEquals(1, count($this->linkDb));
         $this->assertEquals(0, count_private($this->linkDb));
@@ -145,7 +164,7 @@ class BookmarkImportTest extends PHPUnit_Framework_TestCase
         $this->assertEquals(
             'File netscape_nested.htm (1337 bytes) was successfully processed:'
             .' 8 links imported, 0 links overwritten, 0 links skipped.',
-            NetscapeBookmarkUtils::import(array(), $files, $this->linkDb, $this->conf)
+            NetscapeBookmarkUtils::import([], $files, $this->linkDb, $this->conf, $this->history)
         );
         $this->assertEquals(8, count($this->linkDb));
         $this->assertEquals(2, count_private($this->linkDb));
@@ -267,7 +286,7 @@ class BookmarkImportTest extends PHPUnit_Framework_TestCase
         $this->assertEquals(
             'File netscape_basic.htm (482 bytes) was successfully processed:'
             .' 2 links imported, 0 links overwritten, 0 links skipped.',
-            NetscapeBookmarkUtils::import(array(), $files, $this->linkDb, $this->conf)
+            NetscapeBookmarkUtils::import([], $files, $this->linkDb, $this->conf, $this->history)
         );
 
         $this->assertEquals(2, count($this->linkDb));
@@ -312,7 +331,7 @@ class BookmarkImportTest extends PHPUnit_Framework_TestCase
         $this->assertEquals(
             'File netscape_basic.htm (482 bytes) was successfully processed:'
             .' 2 links imported, 0 links overwritten, 0 links skipped.',
-            NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf)
+            NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf, $this->history)
         );
         $this->assertEquals(2, count($this->linkDb));
         $this->assertEquals(1, count_private($this->linkDb));
@@ -356,7 +375,7 @@ class BookmarkImportTest extends PHPUnit_Framework_TestCase
         $this->assertEquals(
             'File netscape_basic.htm (482 bytes) was successfully processed:'
             .' 2 links imported, 0 links overwritten, 0 links skipped.',
-            NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf)
+            NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf, $this->history)
         );
         $this->assertEquals(2, count($this->linkDb));
         $this->assertEquals(0, count_private($this->linkDb));
@@ -380,7 +399,7 @@ class BookmarkImportTest extends PHPUnit_Framework_TestCase
         $this->assertEquals(
             'File netscape_basic.htm (482 bytes) was successfully processed:'
             .' 2 links imported, 0 links overwritten, 0 links skipped.',
-            NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf)
+            NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf, $this->history)
         );
         $this->assertEquals(2, count($this->linkDb));
         $this->assertEquals(2, count_private($this->linkDb));
@@ -406,7 +425,7 @@ class BookmarkImportTest extends PHPUnit_Framework_TestCase
         $this->assertEquals(
             'File netscape_basic.htm (482 bytes) was successfully processed:'
             .' 2 links imported, 0 links overwritten, 0 links skipped.',
-            NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf)
+            NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf, $this->history)
         );
         $this->assertEquals(2, count($this->linkDb));
         $this->assertEquals(2, count_private($this->linkDb));
@@ -426,7 +445,7 @@ class BookmarkImportTest extends PHPUnit_Framework_TestCase
         $this->assertEquals(
             'File netscape_basic.htm (482 bytes) was successfully processed:'
             .' 2 links imported, 2 links overwritten, 0 links skipped.',
-            NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf)
+            NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf, $this->history)
         );
         $this->assertEquals(2, count($this->linkDb));
         $this->assertEquals(0, count_private($this->linkDb));
@@ -452,7 +471,7 @@ class BookmarkImportTest extends PHPUnit_Framework_TestCase
         $this->assertEquals(
             'File netscape_basic.htm (482 bytes) was successfully processed:'
             .' 2 links imported, 0 links overwritten, 0 links skipped.',
-            NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf)
+            NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf, $this->history)
         );
         $this->assertEquals(2, count($this->linkDb));
         $this->assertEquals(0, count_private($this->linkDb));
@@ -473,7 +492,7 @@ class BookmarkImportTest extends PHPUnit_Framework_TestCase
         $this->assertEquals(
             'File netscape_basic.htm (482 bytes) was successfully processed:'
             .' 2 links imported, 2 links overwritten, 0 links skipped.',
-            NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf)
+            NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf, $this->history)
         );
         $this->assertEquals(2, count($this->linkDb));
         $this->assertEquals(2, count_private($this->linkDb));
@@ -497,7 +516,7 @@ class BookmarkImportTest extends PHPUnit_Framework_TestCase
         $this->assertEquals(
             'File netscape_basic.htm (482 bytes) was successfully processed:'
             .' 2 links imported, 0 links overwritten, 0 links skipped.',
-            NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf)
+            NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf, $this->history)
         );
         $this->assertEquals(2, count($this->linkDb));
         $this->assertEquals(0, count_private($this->linkDb));
@@ -507,7 +526,7 @@ class BookmarkImportTest extends PHPUnit_Framework_TestCase
         $this->assertEquals(
             'File netscape_basic.htm (482 bytes) was successfully processed:'
             .' 0 links imported, 0 links overwritten, 2 links skipped.',
-            NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf)
+            NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf, $this->history)
         );
         $this->assertEquals(2, count($this->linkDb));
         $this->assertEquals(0, count_private($this->linkDb));
@@ -526,7 +545,7 @@ class BookmarkImportTest extends PHPUnit_Framework_TestCase
         $this->assertEquals(
             'File netscape_basic.htm (482 bytes) was successfully processed:'
             .' 2 links imported, 0 links overwritten, 0 links skipped.',
-            NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf)
+            NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf, $this->history)
         );
         $this->assertEquals(2, count($this->linkDb));
         $this->assertEquals(0, count_private($this->linkDb));
@@ -553,7 +572,7 @@ class BookmarkImportTest extends PHPUnit_Framework_TestCase
         $this->assertEquals(
             'File netscape_basic.htm (482 bytes) was successfully processed:'
             .' 2 links imported, 0 links overwritten, 0 links skipped.',
-            NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf)
+            NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf, $this->history)
         );
         $this->assertEquals(2, count($this->linkDb));
         $this->assertEquals(0, count_private($this->linkDb));
@@ -578,7 +597,7 @@ class BookmarkImportTest extends PHPUnit_Framework_TestCase
         $this->assertEquals(
             'File same_date.htm (453 bytes) was successfully processed:'
             .' 3 links imported, 0 links overwritten, 0 links skipped.',
-            NetscapeBookmarkUtils::import(array(), $files, $this->linkDb, $this->conf)
+            NetscapeBookmarkUtils::import(array(), $files, $this->linkDb, $this->conf, $this->history)
         );
         $this->assertEquals(3, count($this->linkDb));
         $this->assertEquals(0, count_private($this->linkDb));
@@ -595,4 +614,32 @@ class BookmarkImportTest extends PHPUnit_Framework_TestCase
             $this->linkDb[2]['id']
         );
     }
+
+    public function testImportCreateUpdateHistory()
+    {
+        $post = [
+            'privacy' => 'public',
+            'overwrite' => 'true',
+        ];
+        $files = file2array('netscape_basic.htm');
+        $nbLinks = 2;
+        NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf, $this->history);
+        $history = $this->history->getHistory();
+        $this->assertEquals($nbLinks, count($history));
+        foreach ($history as $value) {
+            $this->assertEquals(History::CREATED, $value['event']);
+            $this->assertTrue(new DateTime('-5 seconds') < DateTime::createFromFormat(DateTime::ATOM, $value['datetime']));
+            $this->assertTrue(is_int($value['id']));
+        }
+
+        // re-import as private, enable overwriting
+        NetscapeBookmarkUtils::import($post, $files, $this->linkDb, $this->conf, $this->history);
+        $history = $this->history->getHistory();
+        $this->assertEquals($nbLinks * 2, count($history));
+        for ($i = 0 ; $i < $nbLinks ; $i++) {
+            $this->assertEquals(History::UPDATED, $history[$i]['event']);
+            $this->assertTrue(new DateTime('-5 seconds') < DateTime::createFromFormat(DateTime::ATOM, $history[$i]['datetime']));
+            $this->assertTrue(is_int($history[$i]['id']));
+        }
+    }
 }