update Piwik to version 2.16 (fixes #91)

www/analytics/core/Updates/2.14.2.php

@@ -0,0 +1,124 @@
+<?php
+/**
+ * Piwik - free/libre analytics platform
+ *
+ * @link http://piwik.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ *
+ */
+
+namespace Piwik\Updates;
+
+use Piwik\Common;
+use Piwik\DbHelper;
+use Piwik\Option;
+use Piwik\Plugin\Dimension\ActionDimension;
+use Piwik\Plugin\Dimension\ConversionDimension;
+use Piwik\Plugin\Dimension\VisitDimension;
+use Piwik\Tracker\Visit;
+use Piwik\Updater;
+use Piwik\Updates;
+
+/**
+ * Update for version 2.14.2.
+ */
+class Updates_2_14_2 extends Updates
+{
+    /**
+     * Removes option entries for columns that are marked as installed but are actually no longer installed due to
+     * a bug in previous versions where the option entries were not correctly removed.
+     *
+     * @param Updater $updater
+     * @return array
+     */
+    public function getMigrationQueries(Updater $updater)
+    {
+        $visitSqls = self::getSqlsThatRemoveOptionEntriesOfNotActuallyInstalledColumns(VisitDimension::INSTALLER_PREFIX, 'log_visit');
+        $actionSqls = self::getSqlsThatRemoveOptionEntriesOfNotActuallyInstalledColumns(ActionDimension::INSTALLER_PREFIX, 'log_link_visit_action');
+        $conversionSqls = self::getSqlsThatRemoveOptionEntriesOfNotActuallyInstalledColumns(ConversionDimension::INSTALLER_PREFIX, 'log_conversion');
+
+        $sqls = array();
+
+        foreach ($visitSqls as $sql) {
+            $sqls[$sql] = false;
+        }
+
+        foreach ($actionSqls as $sql) {
+            $sqls[$sql] = false;
+        }
+
+        foreach ($conversionSqls as $sql) {
+            $sqls[$sql] = false;
+        }
+
+        return $sqls;
+    }
+
+    private static function getSqlsThatRemoveOptionEntriesOfNotActuallyInstalledColumns($dimensionPrefix, $tableName)
+    {
+        $componentPrefix = 'version_' . $dimensionPrefix;
+
+        $notActuallyInstalledColumns = self::getNotActuallyInstalledColumnNames($componentPrefix, $tableName);
+
+        $sqls = array();
+        foreach ($notActuallyInstalledColumns as $column) {
+            $sqls[] = self::buildRemoveOptionEntrySql($componentPrefix . $column);
+        }
+
+        return $sqls;
+    }
+
+    private static function buildRemoveOptionEntrySql($optionName)
+    {
+        $tableName = Common::prefixTable('option');
+
+        return sprintf("DELETE FROM `%s` WHERE `option_name` = '%s'", $tableName, $optionName);
+    }
+
+    /**
+     * @param string $componentPrefix
+     * @param string $tableName
+     * @return array An array of columns that are marked as installed but are actually removed. There was a bug
+     *               where option entries were not correctly removed. eg array('idvist', 'server_time', ...)
+     */
+    private static function getNotActuallyInstalledColumnNames($componentPrefix, $tableName)
+    {
+        $installedVisitColumns = self::getMarkedAsInstalledColumns($componentPrefix);
+        $existingVisitColumns  = self::getActuallyExistingColumns($tableName);
+
+        return array_diff($installedVisitColumns, $existingVisitColumns);
+    }
+
+    /**
+     * @param  string $componentPrefix eg 'version_log_visit.'
+     * @return array An array of column names that are marked as installed. eg array('idvist', 'server_time', ...)
+     */
+    private static function getMarkedAsInstalledColumns($componentPrefix)
+    {
+        $installedVisitColumns = Option::getLike($componentPrefix . '%');
+        $installedVisitColumns = array_keys($installedVisitColumns);
+        $installedVisitColumns = array_map(function ($entry) use ($componentPrefix) {
+            return str_replace($componentPrefix, '', $entry);
+        }, $installedVisitColumns);
+
+        return $installedVisitColumns;
+    }
+
+    /**
+     * @param string $tableName
+     * @return array  An array of actually existing column names in the given table. eg array('idvist', 'server_time', ...)
+     */
+    private static function getActuallyExistingColumns($tableName)
+    {
+        $tableName = Common::prefixTable($tableName);
+        return array_keys(DbHelper::getTableColumns($tableName));
+    }
+
+    /**
+     * @param Updater $updater
+     */
+    public function doUpdate(Updater $updater)
+    {
+        $updater->executeMigrationQueries(__FILE__, $this->getMigrationQueries($updater));
+    }
+}