fabarea / vidi

     *

     * @return string|null

     */

    public function getForeignTable()

    {

        $result = null;

        $configuration = $this->getConfiguration();

        if (!empty($configuration['foreign_table'])) {

            $result = $configuration['foreign_table'];

        } elseif ($this->isGroup()) {

            $fieldParts = explode('.', $this->compositeField, 2);

            $result = $fieldParts[1];

        }

        return $result;

    }

    /**

     * Returns the foreign clause.

     *

     * @return string|null

     */

    public function getAdditionalTableNameCondition()

    {

        $result = null;

        $configuration = $this->getConfiguration();

        if (!empty($configuration['MM_match_fields']['tablenames'])) {

            $result = $configuration['MM_match_fields']['tablenames'];

        } elseif ($this->isGroup()) {

            // @todo check if $this->fieldName could be simply used as $result

            $fieldParts = explode('.', $this->compositeField, 2);

            $result = $fieldParts[1];

        }

        return $result;

    }

    /**

     * Returns a possible additional conditions for MM tables such as "tablenames", "fieldname", etc...