'index.php', "name" => get_lang('PlatformAdmin'));
// setting the name of the tool
$tool_name = get_lang('DokeosConfigSettings');
// Build the form
if ($_GET['category'] and $_GET['category'] <> "Plugins" and $_GET['category'] <> "stylesheets")
{
$form = new FormValidator('settings', 'post', 'settings.php?category='.$_GET['category']);
$renderer = & $form->defaultRenderer();
$renderer->setHeaderTemplate('
{header}
'."\n");
$renderer->setElementTemplate('
{label}
'."\n".'
{element}
'."\n");
$my_category = mysql_real_escape_string($_GET['category']);
$sqlsettings = "SELECT DISTINCT * FROM $table_settings_current WHERE category='$my_category' GROUP BY variable ORDER BY id ASC";
$resultsettings = api_sql_query($sqlsettings, __FILE__, __LINE__);
while ($row = mysql_fetch_array($resultsettings))
{
$form->addElement('header', null, get_lang($row['title']));
switch ($row['type'])
{
case 'textfield' :
$form->addElement('text', $row['variable'], get_lang($row['comment']));
$default_values[$row['variable']] = $row['selected_value'];
break;
case 'textarea' :
$form->addElement('textarea', $row['variable'], get_lang($row['comment']));
$default_values[$row['variable']] = $row['selected_value'];
break;
case 'radio' :
$values = get_settings_options($row['variable']);
$group = array ();
foreach ($values as $key => $value)
{
$group[] = $form->createElement('radio', $row['variable'], '', get_lang($value['display_text']), $value['value']);
}
$form->addGroup($group, $row['variable'], get_lang($row['comment']), ' ', false);
$default_values[$row['variable']] = $row['selected_value'];
break;
case 'checkbox';
$sql = "SELECT * FROM settings_current WHERE variable='".$row['variable']."'";
$result = api_sql_query($sql, __FILE__, __LINE__);
$group = array ();
while ($rowkeys = mysql_fetch_array($result))
{
$element = & $form->createElement('checkbox', $rowkeys['subkey'], '', get_lang($rowkeys['subkeytext']));
if ($rowkeys['selected_value'] == 'true' && ! $form->isSubmitted())
{
$element->setChecked(true);
}
$group[] = $element;
}
$form->addGroup($group, $row['variable'], get_lang($row['comment']), ' '."\n");
break;
case "link" :
$form->addElement('static', null, get_lang($row['comment']), get_lang('CurrentValue').' : '.$row['selected_value']);
}
}
$form->addElement('submit', null, get_lang('Ok'));
$form->setDefaults($default_values);
if ($form->validate())
{
$values = $form->exportValues();
// the first step is to set all the variables that have type=checkbox of the category
// to false as the checkbox that is unchecked is not in the $_POST data and can
// therefore not be set to false
$sql = "UPDATE $table_settings_current SET selected_value='false' WHERE category='$my_category' AND type='checkbox'";
$result = api_sql_query($sql, __FILE__, __LINE__);
// Save the settings
foreach ($values as $key => $value)
{
if (!is_array($value))
{
$sql = "UPDATE $table_settings_current SET selected_value='".mysql_real_escape_string($value)."' WHERE variable='$key'";
$result = api_sql_query($sql, __FILE__, __LINE__);
}
else
{
foreach ($value as $subkey => $subvalue)
{
$sql = "UPDATE $table_settings_current SET selected_value='true' WHERE variable='$key' AND subkey = '$subkey'";
$result = api_sql_query($sql, __FILE__, __LINE__);
}
}
}
header('Location: settings.php?action=stored&category='.$_GET['category']);
exit;
}
}
// including the header (banner)
Display :: display_header($tool_name);
//api_display_tool_title($tool_name);
// displaying the message that the settings have been stored
if ($_GET['action'] == "stored")
{
Display :: display_normal_message($SettingsStored);
}
// grabbing the categories
$selectcategories = "SELECT DISTINCT category FROM ".$table_settings_current." WHERE category NOT IN ('stylesheets','Plugins')";
$resultcategories = api_sql_query($selectcategories, __FILE__, __LINE__);
echo "\n
";
while ($row = mysql_fetch_array($resultcategories))
{
echo "\n\t
";
if (isset ($_GET['category']))
{
switch ($_GET['category'])
{
// displaying the extensions: plugins
case 'Plugins' :
handle_plugins();
break;
// displaying the extensions: Stylesheets
case 'stylesheets' :
handle_stylesheets();
break;
default :
$form->display();
}
}
/*
==============================================================================
FOOTER
==============================================================================
*/
Display :: display_footer();
/*
==============================================================================
FUNCTIONS
==============================================================================
*/
/**
* The function that retrieves all the possible settings for a certain config setting
* @author Patrick Cool , Ghent University
*/
function get_settings_options($var)
{
$table_settings_options = Database :: get_main_table(TABLE_MAIN_SETTINGS_OPTIONS);
$sql = "SELECT * FROM $table_settings_options WHERE variable='$var'";
$result = api_sql_query($sql, __FILE__, __LINE__);
while ($row = mysql_fetch_array($result))
{
$temp_array = array ('value' => $row['value'], 'display_text' => $row['display_text']);
$settings_options_array[] = $temp_array;
}
return $settings_options_array;
}
/**
* This function allows easy activating and inactivating of plugins
* @todo: a similar function needs to be written to activate or inactivate additional tools.
* @author Patrick Cool , Ghent University
*/
function handle_plugins()
{
global $SettingsStored;
$userplugins = array();
$table_settings_current = Database :: get_main_table(TABLE_MAIN_SETTINGS_CURRENT);
if ($_POST['submit_plugins'])
{
store_plugins();
Display :: display_normal_message($SettingsStored);
}
echo get_lang('AvailablePlugins')."
";
/* We scan the plugin directory. Each folder is a potential plugin. */
$pluginpath = api_get_path(SYS_PLUGIN_PATH);
$handle = opendir($pluginpath);
while (false !== ($file = readdir($handle)))
{
if (is_dir(api_get_path(SYS_PLUGIN_PATH).$file) AND $file <> '.' AND $file <> '..')
{
$possibleplugins[] = $file;
}
}
closedir($handle);
/* for each of the possible plugin dirs we check if a file plugin.php (that contains all the needed information about this plugin)
can be found in the dir.
this plugin.php file looks like
$plugin_info['title']='The title of the plugin'; //
$plugin_info['comment']="Some comment about the plugin";
$plugin_info['location']=array("loginpage_menu", "campushomepage_menu","banner"); // the possible locations where the plugins can be used
$plugin_info['version']='0.1 alpha'; // The version number of the plugin
$plugin_info['author']='Patrick Cool'; // The author of the plugin
*/
echo '';
}
function display_plugin_cell($location, $plugin_info, $current_plugin, $active_plugins)
{
echo "\t\t
\n";
}
/**
* This function allows the platform admin to choose the default stylesheet
* @author Patrick Cool , Ghent University
*/
function handle_stylesheets()
{
// Current style
$currentstyle = api_get_setting('stylesheets');
// Preview of the stylesheet
echo '';
echo '';
}
/**
* This function allows easy activating and inactivating of plugins
* @todo: a similar function needs to be written to activate or inactivate additional tools.
* @author Patrick Cool , Ghent University
*/
function store_plugins()
{
$table_settings_current = Database :: get_main_table(TABLE_MAIN_SETTINGS_CURRENT);
// Step 1 : we remove all the plugins
$sql = "DELETE FROM $table_settings_current WHERE category='Plugins'";
api_sql_query($sql, __LINE__, __FILE__);
// step 2: looping through all the post values we only store these which are really a valid plugin location.
foreach ($_POST as $form_name => $formvalue)
{
$form_name_elements = explode("-", $form_name);
if (is_valid_plugin_location($form_name_elements[1]))
{
$sql = "INSERT into $table_settings_current (variable,category,selected_value) VALUES ('".$form_name_elements['1']."','Plugins','".$form_name_elements['0']."')";
api_sql_query($sql, __LINE__, __FILE__);
}
}
}
/**
* Check if the post information is really a valid plugin location.
* @author Patrick Cool , Ghent University
*/
function is_valid_plugin_location($location)
{
$valid_locations=array('loginpage_main', 'loginpage_menu', 'campushomepage_main', 'campushomepage_menu', 'mycourses_main', 'mycourses_menu','header', 'footer');
if (in_array($location, $valid_locations))
{
return true;
}
else
{
return false;
}
}
/**
* This function allows the platform admin to choose which should be the default stylesheet
* @author Patrick Cool , Ghent University
*/
function store_stylesheets()
{
// Database Table Definitions
$table_settings_current = Database :: get_main_table(TABLE_MAIN_SETTINGS_CURRENT);
// Insert the stylesheet
$style = Database::escape_string($_POST['style']);
if (is_style($style))
{
$sql = 'UPDATE '.$table_settings_current.' SET
selected_value = "'.$style.'"
WHERE variable = "stylesheets"
AND category = "stylesheets"';
api_sql_query($sql, __LINE__, __FILE__);
}
return true;
}
/**
* This function checks if the given style is a recognize style that exists in the css directory as
* a standalone directory.
* @param string Style
* @return bool True if this style is recognized, false otherwise
*/
function is_style($style)
{
$dir = api_get_path(SYS_PATH).'main/css/';
$dirs = scandir($dir);
$style = str_replace(array('/','\\'),array('',''),$style); //avoid slashes or backslashes
if (in_array($style,$dirs) && is_dir($dir.$style))
{
return true;
}
return false;
}
?>