. /** * @package tool_xmldb * @copyright 2003 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com} * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ /** * This class will delete completely one index * * @package tool_xmldb * @copyright 2003 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com} * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ class delete_index extends XMLDBAction { /** * Init method, every subclass will have its own */ function init() { parent::init(); // Set own custom attributes // Get needed strings $this->loadStrings(array( 'confirmdeleteindex' => 'tool_xmldb', 'yes' => '', 'no' => '' )); } /** * Invoke method, every class will have its own * returns true/false on completion, setting both * errormsg and output as necessary */ function invoke() { parent::invoke(); $result = true; // Set own core attributes $this->does_generate = ACTION_GENERATE_HTML; // These are always here global $CFG, $XMLDB; // Do the job, setting result as needed // Get the dir containing the file $dirpath = required_param('dir', PARAM_PATH); $dirpath = $CFG->dirroot . $dirpath; $tableparam = required_param('table', PARAM_PATH); $indexparam = required_param('index', PARAM_PATH); $confirmed = optional_param('confirmed', false, PARAM_BOOL); // If not confirmed, show confirmation box if (!$confirmed) { $o = ''; $o.= ' '; $o.= '

'; $o.= '

' . $this->str['confirmdeleteindex'] . '

' . $indexparam . '

'; $o.= ' '; $o.= '

'; $o.= '

'; $this->output = $o; } else { // Get the edited dir if (!empty($XMLDB->editeddirs)) { if (isset($XMLDB->editeddirs[$dirpath])) { $dbdir = $XMLDB->dbdirs[$dirpath]; $editeddir = $XMLDB->editeddirs[$dirpath]; if ($editeddir) { $structure = $editeddir->xml_file->getStructure(); // Move adjacent indexes prev and next attributes $tables = $structure->getTables(); $table = $structure->getTable($tableparam); $indexes = $table->getIndexes(); $index = $table->getIndex($indexparam); if ($index->getPrevious()) { $prev = $table->getIndex($index->getPrevious()); $prev->setNext($index->getNext()); } if ($index->getNext()) { $next = $table->getIndex($index->getNext()); $next->setPrevious($index->getPrevious()); } // Remove the index $table->deleteIndex($indexparam); // Recalculate the hash $structure->calculateHash(true); // If the hash has changed from the original one, change the version // and mark the structure as changed $origstructure = $dbdir->xml_file->getStructure(); if ($structure->getHash() != $origstructure->getHash()) { $structure->setVersion(userdate(time(), '%Y%m%d', 99, false)); $structure->setChanged(true); } } } } } // Launch postaction if exists (leave this here!) if ($this->getPostAction() && $result) { return $this->launch($this->getPostAction()); } // Return ok if arrived here return $result; } }