Method save

/**
 * Method to save the form data.
 *
 * @param   array  $data  The form data.
 *
 * @return  boolean  True on success, False on error.
 *
 * @since   1.6
 */
public function save($data)
{
    $table = $this->getTable();
    $context = $this->option . '.' . $this->name;
    $app = Factory::getApplication();
    if (\array_key_exists('tags', $data) && \is_array($data['tags'])) {
        $table->newTags = $data['tags'];
    }
    $key = $table->getKeyName();
    $pk = isset($data[$key]) ? $data[$key] : (int) $this->getState($this->getName() . '.id');
    $isNew = true;
    // Include the plugins for the save events.
    PluginHelper::importPlugin($this->events_map['save']);
    // Allow an exception to be thrown.
    try {
        // Load the row if saving an existing record.
        if ($pk > 0) {
            $table->load($pk);
            $isNew = false;
        }
        // Bind the data.
        if (!$table->bind($data)) {
            $this->setError($table->getError());
            return false;
        }
        // Prepare the row for saving
        $this->prepareTable($table);
        // Check the data.
        if (!$table->check()) {
            $this->setError($table->getError());
            return false;
        }
        // Trigger the before save event.
        $result = $app->triggerEvent($this->event_before_save, array($context, $table, $isNew, $data));
        if (\in_array(false, $result, true)) {
            $this->setError($table->getError());
            return false;
        }
        // Store the data.
        if (!$table->store()) {
            $this->setError($table->getError());
            return false;
        }
        // Clean the cache.
        $this->cleanCache();
        // Trigger the after save event.
        $app->triggerEvent($this->event_after_save, array($context, $table, $isNew, $data));
    } catch (\Exception $e) {
        $this->setError($e->getMessage());
        return false;
    }
    if (isset($table->{$key})) {
        $this->setState($this->getName() . '.id', $table->{$key});
    }
    $this->setState($this->getName() . '.new', $isNew);
    if ($this->associationsContext && Associations::isEnabled() && !empty($data['associations'])) {
        $associations = $data['associations'];
        // Unset any invalid associations
        $associations = ArrayHelper::toInteger($associations);
        // Unset any invalid associations
        foreach ($associations as $tag => $id) {
            if (!$id) {
                unset($associations[$tag]);
            }
        }
        // Show a warning if the item isn't assigned to a language but we have associations.
        if ($associations && $table->language === '*') {
            $app->enqueueMessage(Text::_(strtoupper($this->option) . '_ERROR_ALL_LANGUAGE_ASSOCIATED'), 'warning');
        }
        // Get associationskey for edited item
        $db = $this->getDbo();
        $id = (int) $table->{$key};
        $query = $db->getQuery(true)->select($db->quoteName('key'))->from($db->quoteName('#__associations'))->where($db->quoteName('context') . ' = :context')->where($db->quoteName('id') . ' = :id')->bind(':context', $this->associationsContext)->bind(':id', $id, ParameterType::INTEGER);
        $db->setQuery($query);
        $oldKey = $db->loadResult();
        if ($associations || $oldKey !== null) {
            // Deleting old associations for the associated items
            $query = $db->getQuery(true)->delete($db->quoteName('#__associations'))->where($db->quoteName('context') . ' = :context')->bind(':context', $this->associationsContext);
            $where = [];
            if ($associations) {
                $where[] = $db->quoteName('id') . ' IN (' . implode(',', $query->bindArray(array_values($associations))) . ')';
            }
            if ($oldKey !== null) {
                $where[] = $db->quoteName('key') . ' = :oldKey';
                $query->bind(':oldKey', $oldKey);
            }
            $query->extendWhere('AND', $where, 'OR');
            $db->setQuery($query);
            $db->execute();
        }
        // Adding self to the association
        if ($table->language !== '*') {
            $associations[$table->language] = (int) $table->{$key};
        }
        if (\count($associations) > 1) {
            // Adding new association for these items
            $key = md5(json_encode($associations));
            $query = $db->getQuery(true)->insert($db->quoteName('#__associations'))->columns([$db->quoteName('id'), $db->quoteName('context'), $db->quoteName('key')]);
            foreach ($associations as $id) {
                $query->values(implode(',', $query->bindArray([$id, $this->associationsContext, $key], [ParameterType::INTEGER, ParameterType::STRING, ParameterType::STRING])));
            }
            $db->setQuery($query);
            $db->execute();
        }
    }
    if ($app->input->get('task') == 'editAssociations') {
        return $this->redirectToAssociations($data);
    }
    return true;
}