Initial commit of intern.ccwn.org contentsHEADmaster

1 files changed, 637 insertions, 0 deletions

diff --git a/hugo/libraries/rte/rte_events.lib.php b/hugo/libraries/rte/rte_events.lib.php
new file mode 100644
index 0000000..7d4ce6c
--- /dev/null
+++ b/hugo/libraries/rte/rte_events.lib.php
@@ -0,0 +1,637 @@
+<?php
+/* vim: set expandtab sw=4 ts=4 sts=4: */
+/**
+ * Functions for event management.
+ *
+ * @package PhpMyAdmin
+ */
+if (! defined('PHPMYADMIN')) {
+    exit;
+}
+
+/**
+ * Sets required globals
+ *
+ * @return void
+ */
+function PMA_EVN_setGlobals()
+{
+    global $event_status, $event_type, $event_interval;
+
+    $event_status        = array(
+                               'query'   => array('ENABLE',
+                                                  'DISABLE',
+                                                  'DISABLE ON SLAVE'),
+                               'display' => array('ENABLED',
+                                                  'DISABLED',
+                                                  'SLAVESIDE_DISABLED')
+                           );
+    $event_type          = array('RECURRING',
+                                 'ONE TIME');
+    $event_interval      = array('YEAR',
+                                 'QUARTER',
+                                 'MONTH',
+                                 'DAY',
+                                 'HOUR',
+                                 'MINUTE',
+                                 'WEEK',
+                                 'SECOND',
+                                 'YEAR_MONTH',
+                                 'DAY_HOUR',
+                                 'DAY_MINUTE',
+                                 'DAY_SECOND',
+                                 'HOUR_MINUTE',
+                                 'HOUR_SECOND',
+                                 'MINUTE_SECOND');
+}
+
+/**
+ * Main function for the events functionality
+ *
+ * @return void
+ */
+function PMA_EVN_main()
+{
+    global $db;
+
+    PMA_EVN_setGlobals();
+    /**
+     * Process all requests
+     */
+    PMA_EVN_handleEditor();
+    PMA_EVN_handleExport();
+    /**
+     * Display a list of available events
+     */
+    $columns = "`EVENT_NAME`, `EVENT_TYPE`, `STATUS`";
+    $where   = "EVENT_SCHEMA='" . PMA_Util::sqlAddSlashes($db) . "'";
+    $query   = "SELECT $columns FROM `INFORMATION_SCHEMA`.`EVENTS` "
+             . "WHERE $where ORDER BY `EVENT_NAME` ASC;";
+    $items   = PMA_DBI_fetch_result($query);
+    echo PMA_RTE_getList('event', $items);
+    /**
+     * Display a link for adding a new event, if
+     * the user has the privileges and a link to
+     * toggle the state of the event scheduler.
+     */
+    echo PMA_EVN_getFooterLinks();
+} // end PMA_EVN_main()
+
+/**
+ * Handles editor requests for adding or editing an item
+ *
+ * @return void
+ */
+function PMA_EVN_handleEditor()
+{
+    global $_REQUEST, $_POST, $errors, $db;
+
+    if (! empty($_REQUEST['editor_process_add'])
+        || ! empty($_REQUEST['editor_process_edit'])
+    ) {
+        $sql_query = '';
+
+        $item_query = PMA_EVN_getQueryFromRequest();
+
+        if (! count($errors)) { // set by PMA_RTN_getQueryFromRequest()
+            // Execute the created query
+            if (! empty($_REQUEST['editor_process_edit'])) {
+                // Backup the old trigger, in case something goes wrong
+                $create_item = PMA_DBI_get_definition(
+                    $db,
+                    'EVENT',
+                    $_REQUEST['item_original_name']
+                );
+                $drop_item = "DROP EVENT "
+                    . PMA_Util::backquote($_REQUEST['item_original_name']) . ";\n";
+                $result = PMA_DBI_try_query($drop_item);
+                if (! $result) {
+                    $errors[] = sprintf(
+                        __('The following query has failed: "%s"'),
+                        htmlspecialchars($drop_item)
+                    )
+                    . '<br />'
+                    . __('MySQL said: ') . PMA_DBI_getError(null);
+                } else {
+                    $result = PMA_DBI_try_query($item_query);
+                    if (! $result) {
+                        $errors[] = sprintf(
+                            __('The following query has failed: "%s"'),
+                            htmlspecialchars($item_query)
+                        )
+                        . '<br />'
+                        . __('MySQL said: ') . PMA_DBI_getError(null);
+                        // We dropped the old item, but were unable to create
+                        // the new one. Try to restore the backup query
+                        $result = PMA_DBI_try_query($create_item);
+                        if (! $result) {
+                            // OMG, this is really bad! We dropped the query,
+                            // failed to create a new one
+                            // and now even the backup query does not execute!
+                            // This should not happen, but we better handle
+                            // this just in case.
+                            $errors[] = __(
+                                'Sorry, we failed to restore the dropped event.'
+                            )
+                            . '<br />'
+                            . __('The backed up query was:')
+                            . "\"" . htmlspecialchars($create_item) . "\""
+                            . '<br />'
+                            . __('MySQL said: ') . PMA_DBI_getError(null);
+                        }
+                    } else {
+                        $message = PMA_Message::success(
+                            __('Event %1$s has been modified.')
+                        );
+                        $message->addParam(
+                            PMA_Util::backquote($_REQUEST['item_name'])
+                        );
+                        $sql_query = $drop_item . $item_query;
+                    }
+                }
+            } else {
+                // 'Add a new item' mode
+                $result = PMA_DBI_try_query($item_query);
+                if (! $result) {
+                    $errors[] = sprintf(
+                        __('The following query has failed: "%s"'),
+                        htmlspecialchars($item_query)
+                    )
+                    . '<br /><br />'
+                    . __('MySQL said: ') . PMA_DBI_getError(null);
+                } else {
+                    $message = PMA_Message::success(
+                        __('Event %1$s has been created.')
+                    );
+                    $message->addParam(
+                        PMA_Util::backquote($_REQUEST['item_name'])
+                    );
+                    $sql_query = $item_query;
+                }
+            }
+        }
+
+        if (count($errors)) {
+            $message = PMA_Message::error(__('<b>One or more errors have occured while processing your request:</b>'));
+            $message->addString('<ul>');
+            foreach ($errors as $string) {
+                $message->addString('<li>' . $string . '</li>');
+            }
+            $message->addString('</ul>');
+        }
+
+        $output = PMA_Util::getMessage($message, $sql_query);
+        if ($GLOBALS['is_ajax_request']) {
+            $response = PMA_Response::getInstance();
+            if ($message->isSuccess()) {
+                $columns = "`EVENT_NAME`, `EVENT_TYPE`, `STATUS`";
+                $where   = "EVENT_SCHEMA='" . PMA_Util::sqlAddSlashes($db) . "' "
+                    . "AND EVENT_NAME='"
+                    . PMA_Util::sqlAddSlashes($_REQUEST['item_name']) . "'";
+                $query   = "SELECT " . $columns
+                    . " FROM `INFORMATION_SCHEMA`.`EVENTS` WHERE " . $where. ";";
+                $event   = PMA_DBI_fetch_single_row($query);
+                $response->addJSON(
+                    'name',
+                    htmlspecialchars(strtoupper($_REQUEST['item_name']))
+                );
+                $response->addJSON('new_row', PMA_EVN_getRowForList($event));
+                $response->addJSON('insert', ! empty($event));
+                $response->addJSON('message', $output);
+            } else {
+                $response->isSuccess(false);
+                $response->addJSON('message', $message);
+            }
+            exit;
+        }
+    }
+    /**
+     * Display a form used to add/edit a trigger, if necessary
+     */
+    if (count($errors)
+        || (empty($_REQUEST['editor_process_add'])
+        && empty($_REQUEST['editor_process_edit'])
+        && (! empty($_REQUEST['add_item'])
+        || ! empty($_REQUEST['edit_item'])
+        || ! empty($_REQUEST['item_changetype'])))
+    ) { // FIXME: this must be simpler than that
+        $operation = '';
+        if (! empty($_REQUEST['item_changetype'])) {
+            $operation = 'change';
+        }
+        // Get the data for the form (if any)
+        if (! empty($_REQUEST['add_item'])) {
+            $title = PMA_RTE_getWord('add');
+            $item = PMA_EVN_getDataFromRequest();
+            $mode = 'add';
+        } else if (! empty($_REQUEST['edit_item'])) {
+            $title = __("Edit event");
+            if (! empty($_REQUEST['item_name'])
+                && empty($_REQUEST['editor_process_edit'])
+                && empty($_REQUEST['item_changetype'])
+            ) {
+                $item = PMA_EVN_getDataFromName($_REQUEST['item_name']);
+                if ($item !== false) {
+                    $item['item_original_name'] = $item['item_name'];
+                }
+            } else {
+                $item = PMA_EVN_getDataFromRequest();
+            }
+            $mode = 'edit';
+        }
+        if ($item !== false) {
+            // Show form
+            $editor = PMA_EVN_getEditorForm($mode, $operation, $item);
+            if ($GLOBALS['is_ajax_request']) {
+                $response = PMA_Response::getInstance();
+                $response->addJSON('message', $editor);
+                $response->addJSON('title', $title);
+            } else {
+                echo "\n\n<h2>$title</h2>\n\n$editor";
+                unset($_POST);
+            }
+            exit;
+        } else {
+            $message  = __('Error in processing request') . ' : ';
+            $message .= sprintf(
+                PMA_RTE_getWord('not_found'),
+                htmlspecialchars(PMA_Util::backquote($_REQUEST['item_name'])),
+                htmlspecialchars(PMA_Util::backquote($db))
+            );
+            $message = PMA_message::error($message);
+            if ($GLOBALS['is_ajax_request']) {
+                $response = PMA_Response::getInstance();
+                $response->isSuccess(false);
+                $response->addJSON('message', $message);
+                exit;
+            } else {
+                $message->display();
+            }
+        }
+    }
+} // end PMA_EVN_handleEditor()
+
+/**
+ * This function will generate the values that are required to for the editor
+ *
+ * @return array    Data necessary to create the editor.
+ */
+function PMA_EVN_getDataFromRequest()
+{
+    $retval = array();
+    $indices = array('item_name',
+                     'item_original_name',
+                     'item_status',
+                     'item_execute_at',
+                     'item_interval_value',
+                     'item_interval_field',
+                     'item_starts',
+                     'item_ends',
+                     'item_definition',
+                     'item_preserve',
+                     'item_comment',
+                     'item_definer');
+    foreach ($indices as $index) {
+        $retval[$index] = isset($_REQUEST[$index]) ? $_REQUEST[$index] : '';
+    }
+    $retval['item_type']        = 'ONE TIME';
+    $retval['item_type_toggle'] = 'RECURRING';
+    if (isset($_REQUEST['item_type']) && $_REQUEST['item_type'] == 'RECURRING') {
+        $retval['item_type']        = 'RECURRING';
+        $retval['item_type_toggle'] = 'ONE TIME';
+    }
+    return $retval;
+} // end PMA_EVN_getDataFromRequest()
+
+/**
+ * This function will generate the values that are required to complete
+ * the "Edit event" form given the name of a event.
+ *
+ * @param string $name The name of the event.
+ *
+ * @return array Data necessary to create the editor.
+ */
+function PMA_EVN_getDataFromName($name)
+{
+    global $db;
+
+    $retval = array();
+    $columns = "`EVENT_NAME`, `STATUS`, `EVENT_TYPE`, `EXECUTE_AT`, "
+             . "`INTERVAL_VALUE`, `INTERVAL_FIELD`, `STARTS`, `ENDS`, "
+             . "`EVENT_DEFINITION`, `ON_COMPLETION`, `DEFINER`, `EVENT_COMMENT`";
+    $where   = "EVENT_SCHEMA='" . PMA_Util::sqlAddSlashes($db) . "' "
+             . "AND EVENT_NAME='" . PMA_Util::sqlAddSlashes($name) . "'";
+    $query   = "SELECT $columns FROM `INFORMATION_SCHEMA`.`EVENTS` WHERE $where;";
+    $item    = PMA_DBI_fetch_single_row($query);
+    if (! $item) {
+        return false;
+    }
+    $retval['item_name']   = $item['EVENT_NAME'];
+    $retval['item_status'] = $item['STATUS'];
+    $retval['item_type']   = $item['EVENT_TYPE'];
+    if ($retval['item_type'] == 'RECURRING') {
+        $retval['item_type_toggle'] = 'ONE TIME';
+    } else {
+        $retval['item_type_toggle'] = 'RECURRING';
+    }
+    $retval['item_execute_at']     = $item['EXECUTE_AT'];
+    $retval['item_interval_value'] = $item['INTERVAL_VALUE'];
+    $retval['item_interval_field'] = $item['INTERVAL_FIELD'];
+    $retval['item_starts']         = $item['STARTS'];
+    $retval['item_ends']           = $item['ENDS'];
+    $retval['item_preserve']       = '';
+    if ($item['ON_COMPLETION'] == 'PRESERVE') {
+        $retval['item_preserve']   = " checked='checked'";
+    }
+    $retval['item_definition'] = $item['EVENT_DEFINITION'];
+    $retval['item_definer']    = $item['DEFINER'];
+    $retval['item_comment']    = $item['EVENT_COMMENT'];
+
+    return $retval;
+} // end PMA_EVN_getDataFromName()
+
+/**
+ * Displays a form used to add/edit an event
+ *
+ * @param string $mode      If the editor will be used edit an event
+ *                              or add a new one: 'edit' or 'add'.
+ * @param string $operation If the editor was previously invoked with
+ *                              JS turned off, this will hold the name of
+ *                              the current operation
+ * @param array  $item      Data for the event returned by
+ *                              PMA_EVN_getDataFromRequest() or
+ *                              PMA_EVN_getDataFromName()
+ *
+ * @return string   HTML code for the editor.
+ */
+function PMA_EVN_getEditorForm($mode, $operation, $item)
+{
+    global $db, $table, $event_status, $event_type, $event_interval;
+
+    // Escape special characters
+    $need_escape = array(
+                       'item_original_name',
+                       'item_name',
+                       'item_type',
+                       'item_execute_at',
+                       'item_interval_value',
+                       'item_starts',
+                       'item_ends',
+                       'item_definition',
+                       'item_definer',
+                       'item_comment'
+                   );
+    foreach ($need_escape as $index) {
+        $item[$index] = htmlentities($item[$index], ENT_QUOTES);
+    }
+    $original_data = '';
+    if ($mode == 'edit') {
+        $original_data = "<input name='item_original_name' "
+                       . "type='hidden' value='{$item['item_original_name']}'/>\n";
+    }
+    // Handle some logic first
+    if ($operation == 'change') {
+        if ($item['item_type'] == 'RECURRING') {
+            $item['item_type']         = 'ONE TIME';
+            $item['item_type_toggle']  = 'RECURRING';
+        } else {
+            $item['item_type']         = 'RECURRING';
+            $item['item_type_toggle']  = 'ONE TIME';
+        }
+    }
+    if ($item['item_type'] == 'ONE TIME') {
+        $isrecurring_class = ' hide';
+        $isonetime_class   = '';
+    } else {
+        $isrecurring_class = '';
+        $isonetime_class   = ' hide';
+    }
+    // Create the output
+    $retval  = "";
+    $retval .= "<!-- START " . strtoupper($mode) . " EVENT FORM -->\n\n";
+    $retval .= "<form class='rte_form' action='db_events.php' method='post'>\n";
+    $retval .= "<input name='{$mode}_item' type='hidden' value='1' />\n";
+    $retval .= $original_data;
+    $retval .= PMA_generate_common_hidden_inputs($db, $table) . "\n";
+    $retval .= "<fieldset>\n";
+    $retval .= "<legend>" . __('Details') . "</legend>\n";
+    $retval .= "<table class='rte_table' style='width: 100%'>\n";
+    $retval .= "<tr>\n";
+    $retval .= "    <td style='width: 20%;'>" . __('Event name') . "</td>\n";
+    $retval .= "    <td><input type='text' name='item_name' \n";
+    $retval .= "               value='{$item['item_name']}'\n";
+    $retval .= "               maxlength='64' /></td>\n";
+    $retval .= "</tr>\n";
+    $retval .= "<tr>\n";
+    $retval .= "    <td>" . __('Status') . "</td>\n";
+    $retval .= "    <td>\n";
+    $retval .= "        <select name='item_status'>\n";
+    foreach ($event_status['display'] as $key => $value) {
+        $selected = "";
+        if (! empty($item['item_status']) && $item['item_status'] == $value) {
+            $selected = " selected='selected'";
+        }
+        $retval .= "<option$selected>$value</option>";
+    }
+    $retval .= "        </select>\n";
+    $retval .= "    </td>\n";
+    $retval .= "</tr>\n";
+
+    $retval .= "<tr>\n";
+    $retval .= "    <td>" . __('Event type') . "</td>\n";
+    $retval .= "    <td>\n";
+    if ($GLOBALS['is_ajax_request']) {
+        $retval .= "        <select name='item_type'>";
+        foreach ($event_type as $key => $value) {
+            $selected = "";
+            if (! empty($item['item_type']) && $item['item_type'] == $value) {
+                $selected = " selected='selected'";
+            }
+            $retval .= "<option$selected>$value</option>";
+        }
+        $retval .= "        </select>\n";
+    } else {
+        $retval .= "        <input name='item_type' type='hidden' \n";
+        $retval .= "               value='{$item['item_type']}' />\n";
+        $retval .= "        <div style='width: 49%; float: left; text-align: center;"
+                                . " font-weight: bold;'>\n";
+        $retval .= "            {$item['item_type']}\n";
+        $retval .= "        </div>\n";
+        $retval .= "        <input style='width: 49%;' type='submit'\n";
+        $retval .= "               name='item_changetype'\n";
+        $retval .= "               value='";
+        $retval .= sprintf(__('Change to %s'), $item['item_type_toggle']);
+        $retval .= "' />\n";
+    }
+    $retval .= "    </td>\n";
+    $retval .= "</tr>\n";
+    $retval .= "<tr class='onetime_event_row $isonetime_class'>\n";
+    $retval .= "    <td>" . __('Execute at') . "</td>\n";
+    $retval .= "    <td class='nowrap'>\n";
+    $retval .= "        <input type='text' name='item_execute_at'\n";
+    $retval .= "               value='{$item['item_execute_at']}'\n";
+    $retval .= "               class='datetimefield' />\n";
+    $retval .= "    </td>\n";
+    $retval .= "</tr>\n";
+    $retval .= "<tr class='recurring_event_row $isrecurring_class'>\n";
+    $retval .= "    <td>" . __('Execute every') . "</td>\n";
+    $retval .= "    <td>\n";
+    $retval .= "        <input style='width: 49%;' type='text'\n";
+    $retval .= "               name='item_interval_value'\n";
+    $retval .= "               value='{$item['item_interval_value']}' />\n";
+    $retval .= "        <select style='width: 49%;' name='item_interval_field'>";
+    foreach ($event_interval as $key => $value) {
+        $selected = "";
+        if (! empty($item['item_interval_field'])
+            && $item['item_interval_field'] == $value
+        ) {
+            $selected = " selected='selected'";
+        }
+        $retval .= "<option$selected>$value</option>";
+    }
+    $retval .= "        </select>\n";
+    $retval .= "    </td>\n";
+    $retval .= "</tr>\n";
+    $retval .= "<tr class='recurring_event_row$isrecurring_class'>\n";
+    $retval .= "    <td>" . _pgettext('Start of recurring event', 'Start');
+    $retval .= "    </td>\n";
+    $retval .= "    <td class='nowrap'>\n";
+    $retval .= "        <input type='text'\n name='item_starts'\n";
+    $retval .= "               value='{$item['item_starts']}'\n";
+    $retval .= "               class='datetimefield' />\n";
+    $retval .= "    </td>\n";
+    $retval .= "</tr>\n";
+    $retval .= "<tr class='recurring_event_row$isrecurring_class'>\n";
+    $retval .= "    <td>" . _pgettext('End of recurring event', 'End') . "</td>\n";
+    $retval .= "    <td class='nowrap'>\n";
+    $retval .= "        <input type='text' name='item_ends'\n";
+    $retval .= "               value='{$item['item_ends']}'\n";
+    $retval .= "               class='datetimefield' />\n";
+    $retval .= "    </td>\n";
+    $retval .= "</tr>\n";
+    $retval .= "<tr>\n";
+    $retval .= "    <td>" . __('Definition') . "</td>\n";
+    $retval .= "    <td><textarea name='item_definition' rows='15' cols='40'>";
+    $retval .= $item['item_definition'];
+    $retval .= "</textarea></td>\n";
+    $retval .= "</tr>\n";
+    $retval .= "<tr>\n";
+    $retval .= "    <td>" . __('On completion preserve') . "</td>\n";
+    $retval .= "    <td><input type='checkbox'\n";
+    $retval .= "             name='item_preserve'{$item['item_preserve']} /></td>\n";
+    $retval .= "</tr>\n";
+    $retval .= "<tr>\n";
+    $retval .= "    <td>" . __('Definer') . "</td>\n";
+    $retval .= "    <td><input type='text' name='item_definer'\n";
+    $retval .= "               value='{$item['item_definer']}' /></td>\n";
+    $retval .= "</tr>\n";
+    $retval .= "<tr>\n";
+    $retval .= "    <td>" . __('Comment') . "</td>\n";
+    $retval .= "    <td><input type='text' name='item_comment' maxlength='64'\n";
+    $retval .= "               value='{$item['item_comment']}' /></td>\n";
+    $retval .= "</tr>\n";
+    $retval .= "</table>\n";
+    $retval .= "</fieldset>\n";
+    if ($GLOBALS['is_ajax_request']) {
+        $retval .= "<input type='hidden' name='editor_process_{$mode}'\n";
+        $retval .= "       value='true' />\n";
+        $retval .= "<input type='hidden' name='ajax_request' value='true' />\n";
+    } else {
+        $retval .= "<fieldset class='tblFooters'>\n";
+        $retval .= "    <input type='submit' name='editor_process_{$mode}'\n";
+        $retval .= "           value='" . __('Go') . "' />\n";
+        $retval .= "</fieldset>\n";
+    }
+    $retval .= "</form>\n\n";
+    $retval .= "<!-- END " . strtoupper($mode) . " EVENT FORM -->\n\n";
+
+    return $retval;
+} // end PMA_EVN_getEditorForm()
+
+/**
+ * Composes the query necessary to create an event from an HTTP request.
+ *
+ * @return string  The CREATE EVENT query.
+ */
+function PMA_EVN_getQueryFromRequest()
+{
+    global $_REQUEST, $errors, $event_status, $event_type, $event_interval;
+
+    $query = 'CREATE ';
+    if (! empty($_REQUEST['item_definer'])) {
+        if (strpos($_REQUEST['item_definer'], '@') !== false) {
+            $arr = explode('@', $_REQUEST['item_definer']);
+            $query .= 'DEFINER=' . PMA_Util::backquote($arr[0]);
+            $query .= '@' . PMA_Util::backquote($arr[1]) . ' ';
+        } else {
+            $errors[] = __('The definer must be in the "username@hostname" format');
+        }
+    }
+    $query .= 'EVENT ';
+    if (! empty($_REQUEST['item_name'])) {
+        $query .= PMA_Util::backquote($_REQUEST['item_name']) . ' ';
+    } else {
+        $errors[] = __('You must provide an event name');
+    }
+    $query .= 'ON SCHEDULE ';
+    if (! empty($_REQUEST['item_type'])
+        && in_array($_REQUEST['item_type'], $event_type)
+    ) {
+        if ($_REQUEST['item_type'] == 'RECURRING') {
+            if (! empty($_REQUEST['item_interval_value'])
+                && !empty($_REQUEST['item_interval_field'])
+                && in_array($_REQUEST['item_interval_field'], $event_interval)
+            ) {
+                $query .= 'EVERY ' . intval($_REQUEST['item_interval_value']) . ' ';
+                $query .= $_REQUEST['item_interval_field'] . ' ';
+            } else {
+                $errors[] = __('You must provide a valid interval value for the event.');
+            }
+            if (! empty($_REQUEST['item_starts'])) {
+                $query .= "STARTS '"
+                    . PMA_Util::sqlAddSlashes($_REQUEST['item_starts']) . "' ";
+            }
+            if (! empty($_REQUEST['item_ends'])) {
+                $query .= "ENDS '"
+                    . PMA_Util::sqlAddSlashes($_REQUEST['item_ends']) . "' ";
+            }
+        } else {
+            if (! empty($_REQUEST['item_execute_at'])) {
+                $query .= "AT '"
+                    . PMA_Util::sqlAddSlashes($_REQUEST['item_execute_at']) . "' ";
+            } else {
+                $errors[] = __('You must provide a valid execution time for the event.');
+            }
+        }
+    } else {
+        $errors[] = __('You must provide a valid type for the event.');
+    }
+    $query .= 'ON COMPLETION ';
+    if (empty($_REQUEST['item_preserve'])) {
+        $query .= 'NOT ';
+    }
+    $query .= 'PRESERVE ';
+    if (! empty($_REQUEST['item_status'])) {
+        foreach ($event_status['display'] as $key => $value) {
+            if ($value == $_REQUEST['item_status']) {
+                $query .= $event_status['query'][$key] . ' ';
+                break;
+            }
+        }
+    }
+    if (! empty($_REQUEST['item_comment'])) {
+        $query .= "COMMENT '" . PMA_Util::sqlAddslashes(
+            $_REQUEST['item_comment']
+        ) . "' ";
+    }
+    $query .= 'DO ';
+    if (! empty($_REQUEST['item_definition'])) {
+        $query .= $_REQUEST['item_definition'];
+    } else {
+        $errors[] = __('You must provide an event definition.');
+    }
+
+    return $query;
+} // end PMA_EVN_getQueryFromRequest()
+
+?>