2 files changed, 144 insertions, 0 deletions
diff --git a/plugins/CustomDimensions b/plugins/CustomDimensions
deleted file mode 160000
-Subproject 318661a2fb1ef3b3e5d6d999ae8b9628cb5a113
diff --git a/plugins/CustomDimensions/Commands/RemoveCustomDimension.php b/plugins/CustomDimensions/Commands/RemoveCustomDimension.php
new file mode 100644
index 0000000000..30fdfe7664
--- /dev/null
+++ b/plugins/CustomDimensions/Commands/RemoveCustomDimension.php
@@ -0,0 +1,144 @@
+<?php
+/**
+ * Matomo - free/libre analytics platform
+ *
+ * @link https://matomo.org
+ * @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
+ *
+ */
+
+namespace Piwik\Plugins\CustomDimensions\Commands;
+
+use Piwik\Plugin\ConsoleCommand;
+use Piwik\Plugins\CustomDimensions\CustomDimensions;
+use Piwik\Plugins\CustomDimensions\Dao\Configuration;
+use Piwik\Plugins\CustomDimensions\Dao\LogTable;
+use Piwik\Tracker\Cache;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ */
+class RemoveCustomDimension extends ConsoleCommand
+{
+    protected function configure()
+    {
+        $this->setName('customdimensions:remove-custom-dimension');
+        $this->setDescription('Removes an existing Custom Dimension');
+        $this->setHelp("Example:
+./console customdimensions:remove-custom-dimension --scope=action --index=4
+=> Will remove the Custom Dimension having the index 4 in scope action.
+");
+
+        $description = sprintf('The scope of the Custom Dimension to remove, either "%s" or "%s"', CustomDimensions::SCOPE_VISIT, CustomDimensions::SCOPE_ACTION);
+        $this->addOption('scope', null, InputOption::VALUE_REQUIRED, $description);
+        $this->addOption('index', null, InputOption::VALUE_REQUIRED, 'Defines which specific Custom Dimension should be removed. To get a list of all available Custom Dimensions execute the command "./console customdimensions:info".');
+    }
+
+    protected function execute(InputInterface $input, OutputInterface $output)
+    {
+        $scope = $this->getScope($input);
+
+        $tracking = new LogTable($scope);
+        $installedIndexes = $tracking->getInstalledIndexes();
+
+        $index = $this->getIndex($input, $installedIndexes);
+
+        $output->writeln(sprintf('Remove Custom Dimension at index %d in scope %s.', $index, $scope));
+
+        $configuration = new Configuration();
+        $configs = $configuration->getCustomDimensionsHavingIndex($scope, $index);
+
+        $names = array();
+        foreach ($configs as $config) {
+            $names[] = $config['name'];
+        }
+
+        if (empty($names)) {
+            $output->writeln('This index is currently not used by any website');
+        } else {
+            $output->writeln(sprintf('This index is used by %d websites and used for the following Custom Dimensions: "%s"', count($names), implode('", "', $names)));
+        }
+
+        $output->writeln('');
+        $output->writeln('<comment>This causes schema changes in the database and may take a very long time.</comment>');
+        $output->writeln('<comment>Removing tracked Custom Dimension data cannot be undone unless you have a backup.</comment>');
+
+        $noInteraction = $input->getOption('no-interaction');
+        if (!$noInteraction && !$this->confirmChange($output)) {
+            return;
+        }
+
+        $output->writeln('');
+        $output->writeln('Starting to remove this Custom Dimension.');
+        $output->writeln('');
+
+        $tracking = new LogTable($scope);
+        $tracking->removeCustomDimension($index);
+
+        $configuration->deleteConfigurationsForIndex($index, $scope);
+
+        if ($scope === CustomDimensions::SCOPE_VISIT) {
+            $tracking = new LogTable(CustomDimensions::SCOPE_CONVERSION);
+            $tracking->removeCustomDimension($index);
+        }
+
+        Cache::clearCacheGeneral();
+
+        $numDimensionsAvailable = $tracking->getNumInstalledIndexes();
+
+        $this->writeSuccessMessage($output, array(
+            sprintf('Your Piwik is now configured for up to %d Custom Dimensions in scope %s.', $numDimensionsAvailable, $scope)
+        ));
+    }
+
+    private function getScope(InputInterface $input)
+    {
+        $scope = $input->getOption('scope');
+
+        if (empty($scope) || !in_array($scope, array(CustomDimensions::SCOPE_VISIT, CustomDimensions::SCOPE_ACTION))) {
+            $message = sprintf('The specified scope is invalid. Use either "--scope=%s" or "--scope=%s"', CustomDimensions::SCOPE_VISIT, CustomDimensions::SCOPE_ACTION);
+            throw new \InvalidArgumentException($message);
+        }
+
+        return $scope;
+    }
+
+    private function getIndex(InputInterface $input, $installedIndexes)
+    {
+        $index = $input->getOption('index');
+
+        $indexesHelp = 'Installed indexes are: ' . implode(', ', $installedIndexes);
+
+        if (empty($index)) {
+            throw new \InvalidArgumentException('An option "index" must be specified. ' . $indexesHelp);
+        }
+
+        if (!is_numeric($index)) {
+            throw new \InvalidArgumentException('Option "index" must be a number');
+        }
+
+        $index = (int) $index;
+
+        if (!in_array($index, $installedIndexes)) {
+            throw new \InvalidArgumentException('Specified index is not installed. ' . $indexesHelp);
+        }
+
+        return $index;
+    }
+
+    private function confirmChange(OutputInterface $output)
+    {
+        $output->writeln('');
+
+        $dialog = $this->getHelperSet()->get('dialog');
+        return $dialog->askConfirmation(
+            $output,
+            '<question>Are you sure you want to perform this action? (y/N)</question>',
+            false
+        );
+    }
+
+}