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@@ -0,0 +1,229 @@
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+<?php
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+/*
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+==============================================================================
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+ Dokeos - elearning and course management software
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+
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+ Copyright (c) 2004-2008 Dokeos SPRL
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+ Copyright (c) Julio Montoya <gugli100@gmail.com>
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+
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+ For a full list of contributors, see "credits.txt".
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+ The full license can be read in "license.txt".
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+
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+ This program is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU General Public License
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+ as published by the Free Software Foundation; either version 2
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+ of the License, or (at your option) any later version.
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+
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+ See the GNU General Public License for more details.
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+
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+ Contact address: Dokeos, rue du Corbeau, 108, B-1030 Brussels, Belgium
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+ Mail: info@dokeos.com
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+
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+==============================================================================
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+*/
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+
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+include_once(api_get_path(LIBRARY_PATH).'/online.inc.php');
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+$table_message = Database::get_course_table(TABLE_MESSAGE);
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+
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+function get_online_user_list($current_user_id)
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+{
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+ $min=30;
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+ global $_configuration;
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+ $userlist = WhoIsOnline($current_user_id,$_configuration['statistics_database'],$min);
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+ foreach($userlist as $row) {
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+ $receiver_id = $row[0];
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+ $online_user_list[$receiver_id] = GetFullUserName($receiver_id).($current_user_id==$receiver_id?(" (".get_lang('Myself').")"):(""));
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+ }
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+ return $online_user_list;
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+}
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+
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+/**
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+* Displays info stating that the message is sent successfully.
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+*/
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+function display_success_message($uid)
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+{
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+ $success= get_lang('MessageSentTo').
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+ " <b>".
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+ GetFullUserName($uid).
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+ "</b>".
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+ "<br><a href=\"".
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+ "inbox.php\">".
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+ get_lang('BackToInbox').
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+ "</a>";
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+ Display::display_confirmation_message($success, false);
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+}
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+
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+/**
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+* @todo this function seems no longer user
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+* but is still mentioned in comments, what can be the use?
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+*/
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+function validate_text($texto)
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+{
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+ $MAX_SIZE = 60; // minimun size of chars
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+ $i=0;
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+ $lines = array(); //array with lines
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+ $token = strtok($texto, "\n");
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+ while($token) {
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+ $lines[$i]= $token;
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+ $token = strtok("\n");
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+ $i++;
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+ }
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+ $modificado= "";
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+ for($i=0; $i<count($lines); $i++ ) {
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+ if(strlen($lines[$i])>$MAX_SIZE + 1) {
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+ $modificado2= substr($lines[$i], 0, $MAX_SIZE);
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+ for($j=$MAX_SIZE; $j<strlen($lines[$i]); $j+=$MAX_SIZE) {
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+ $modificado2 = $modificado2."\n".substr($lines[$i], $j, $MAX_SIZE);
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+ }
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+ } else {
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+ $modificado2= $lines[$i];
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+ }
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+ $modificado = $modificado.$modificado2."\n";
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+ }
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+ $modificado = substr($modificado, 0 ,strlen($modificado)-1);
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+ $modificado = str_replace("&", "&", $modificado); // �em
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+ $modificado = str_replace("<", "<", $modificado); // para evitar que lo convierta en html
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+ $modificado = str_replace(">", ">", $modificado); // �em
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+ return $modificado;
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+}
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+
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+/**
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+* Displays the wysiwyg html editor.
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+*/
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+function display_html_editor_area($name,$resp)
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+{
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+ api_disp_html_area($name, get_lang('TypeYourMessage'), '', '100%');
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+}
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+
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+/**
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+* Get the new messages for the current user from the database.
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+*/
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+function get_new_messages()
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+{
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+ global $table_message;
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+ if (!api_get_user_id()) {
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+ return false;
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+ }
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+ $i=0;
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+ $query = "SELECT * FROM $table_message WHERE user_receiver_id=".api_get_user_id()." AND msg_status=1;";
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+ $result = api_sql_query($query,__FILE__,__LINE__);
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+ $i = Database::num_rows($result);
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+ return $i;
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+}
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+
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+/**
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+* Get the list of user_ids of users who are online.
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+*/
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+function users_connected_by_id()
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+{
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+ global $_configuration, $_user;
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+ $minute=30;
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+ $user_connect = WhoIsOnline($_user['user_id'],$_configuration['statistics_database'],$minute);
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+ for ($i=0; $i<count($user_connect); $i++) {
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+ $user_id_list[$i]=$user_connect[$i][0];
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+ }
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+ return $user_id_list;
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+}
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+
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+/**
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+ * Gets the total number of messages, used for the inbox sortable table
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+ */
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+function get_number_of_messages()
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+{
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+ global $table_message;
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+ $sql_query = "SELECT COUNT(*) as number_messages FROM $table_message WHERE user_receiver_id=".api_get_user_id();
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+ $sql_result = api_sql_query($sql_query,__FILE__,__LINE__);
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+ $result = Database::fetch_array($sql_result);
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+ return $result['number_messages'];
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+}
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+
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+/**
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+ * Gets information about some messages, used for the inbox sortable table
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+ * @param int $from
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+ * @param int $number_of_items
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+ * @param string $direction
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+ */
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+function get_message_data($from, $number_of_items, $column, $direction)
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+{
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+ global $table_message;
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+ $sql_query = "SELECT id as col0, user_sender_id as col1, title as col2, send_date as col3 FROM $table_message " .
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+ "WHERE user_receiver_id=".api_get_user_id()." " .
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+ "ORDER BY col$column $direction LIMIT $from,$number_of_items";
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+ $sql_result = api_sql_query($sql_query,__FILE__,__LINE__);
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+ $i = 0;
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+ $message_list = array ();
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+ while ($result = Database::fetch_row($sql_result)) {
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+ $message[0] = $result[0];
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+ $message[1] = GetFullUserName($result[1]);
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+ //$message[1] = "<a href=\"view_message.php?id=".$result[0]."\" title=\"$texto\">".GetFullUserName($result[1])."</a>";
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+ $message[2] = '<a href="view_message.php?id='.$result[0].'">'.$result[2].'</a>';
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+ $message[3] = $result[3]; //date stays the same
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+
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+ $message[4] = '<a href="new_message.php?re_id='.$result[0].'">'.Display::return_icon('message_reply.png',get_lang('ReplyToMessage')).'</a>'.
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+ ' <a href="inbox.php?action=deleteone&id='.$result[0].'" onclick="javascript:if(!confirm('."'".addslashes(htmlentities(get_lang('ConfirmDeleteMessage')))."'".')) return false;">'.Display::return_icon('message_delete.png',get_lang('DeleteMessage')).'</a>';
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+ $message_list[] = $message;
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+ $i++;
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+ }
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+ return $message_list;
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+}
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+
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+/**
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+* Displays the inbox of a user, listing all messages.
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+* In the process of moving towards sortable table.
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+*/
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+function inbox_display()
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+{
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+ global $table_message;
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+ //delete messages if delete action was chosen
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+ if (isset ($_REQUEST['action']))
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+ {
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+ switch ($_REQUEST['action']) {
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+ case 'delete' :
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+ $number_of_selected_messages = count($_POST['id']);
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+ foreach ($_POST['id'] as $index => $message_id) {
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+ delete_message_by_user_receiver(api_get_user_id(), $message_id);
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+ }
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+ Display::display_normal_message(get_lang('SelectedMessagesDeleted'));
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+ break;
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+ case 'deleteone' :
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+ delete_message_by_user_receiver(api_get_user_id(), $_GET['id']);
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+ Display::display_confirmation_message(get_lang('MessageDeleted'));
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+ echo '<br / >';
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+ break;
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+ }
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+ }
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+
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+ // display sortable table with messages of the current user
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+ $table = new SortableTable('messages', 'get_number_of_messages', 'get_message_data', 1);
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+ $table->set_header(0, '', false);
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+ $table->set_header(1, get_lang('From'));
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+ $table->set_header(2, get_lang('Title'));
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+ $table->set_header(3, get_lang('Date'));
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+ $table->set_header(4, get_lang('Actions'), false);
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+ $table->set_form_actions(array ('delete' => get_lang('DeleteSelectedMessages')));
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+ $table->display();
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+}
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+
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+function send_message($receiver_user_id, $title, $content)
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+{
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+ global $table_message;
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+ $id_tmp = api_get_user_id().$receiver_user_id.date('d-D-w-m-Y-H-s').microtime().rand();
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+ $id_msg = md5($id_tmp);
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+ $query = "INSERT INTO $table_message ( id, user_sender_id, user_receiver_id, msg_status, send_date, title, content ) ".
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+ " VALUES (".
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+ "' ".$id_msg ."' , '".api_get_user_id()."', '".Database::escape_string($receiver_user_id)."', '1', '".date('Y-m-d H:i:s')."','".Database::escape_string($title)."','".Database::escape_string($content)."'".
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+ ");";
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+ $result = api_sql_query($query,__FILE__,__LINE__);
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+ return $result;
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+}
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+
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+function delete_message_by_user_receiver($user_receiver_id,$id)
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+{
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+ global $table_message;
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+ $query = "DELETE FROM $table_message " .
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+ "WHERE user_receiver_id=".Database::escape_string($user_receiver_id)." AND id=".Database::escape_string($id);
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+ $result = api_sql_query($query,__FILE__,__LINE__);
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+ return $result;
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+}
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+
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+?>
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