'admin/settings/demo',
'title' => t('Demonstration site'),
'description' => t('Administer reset interval, create new dumps and manually reset this site.'),
'callback' => 'drupal_get_form',
'callback arguments' => array('demo_admin_settings'),
'access' => user_access('administer demo settings'),
);
$items[] = array(
'path' => 'admin/settings/demo/maintenance',
'title' => 'Status',
'type' => MENU_DEFAULT_LOCAL_TASK,
'weight' => 0,
);
$items[] = array(
'path' => 'admin/settings/demo/dump',
'title' => t('Create snapshot'),
'callback' => 'drupal_get_form',
'callback arguments' => array('demo_dump'),
'access' => user_access('administer demo settings'),
'type' => MENU_LOCAL_TASK,
'weight' => 1,
);
$items[] = array(
'path' => 'admin/settings/demo/reset',
'title' => t('Reset site'),
'callback' => 'drupal_get_form',
'callback arguments' => array('demo_reset_confirm'),
'access' => user_access('administer demo settings'),
'type' => MENU_LOCAL_TASK,
'weight' => 2,
);
}
return $items;
}
function demo_admin_settings() {
global $base_url;
$form['status'] = array(
'#type' => 'fieldset',
'#title' => t('Status'),
'#collapsible' => false,
);
$form['status'][] = array(
'#value' => t('Last Reset: !date
', array('!date' => format_date(variable_get('demo_reset_last', t('Never'))))),
);
if ($mtime = filemtime(variable_get('demo_dump_path', file_directory_path()) .'/demo_site.sql')) {
$last_dump_date = format_date($mtime);
}
else {
$last_dump_date = t('Never');
}
$form['status'][] = array(
'#value' => t('Last Dump: !date
', array('!date' => $last_dump_date)),
);
$form['dump'] = array(
'#type' => 'fieldset',
'#title' => t('Dump settings'),
'#collapsible' => true,
'#collapsed' => (variable_get('demo_reset_interval', 0) ? false : true),
);
$period = drupal_map_assoc(array(0, 1800, 3600, 7200, 10800, 14400, 18000, 21600, 32400, 43200, 86400, 172800, 259200, 604800, 1209600, 2419200, 4838400, 9676800), 'format_interval');
$period[0] = t('disabled');
$form['dump']['interval'] = array(
'#type' => 'select',
'#title' => t('Automatically reset site every'),
'#default_value' => variable_get('demo_reset_interval', 0),
'#options' => $period,
'#description' => t('Select how often this Demo site shall be automatically resetted. Note: This requires cron to run at least within this interval.'),
);
$form['dump']['path'] = array(
'#type' => 'textfield',
'#title' => t('Dump path'),
'#default_value' => variable_get('demo_dump_path', file_directory_path()),
'#size' => 30,
'#description' => t('Enter a writable subdirectory below %files where dump files of this Demo site shall be stored.', array('%files' => file_directory_path() .'/')),
);
$form[] = array(
'#type' => 'submit',
'#value' => t('Save'),
);
return $form;
}
function demo_admin_settings_submit($form_id, $values) {
if (!file_check_directory($values['path'], FILE_CREATE_DIRECTORY)) {
drupal_set_message(t('Dump could not be created. The directory %directory has not been properly configured.', array('%directory' => $values['path'])), 'error');
}
else {
variable_set('demo_dump_path', $values['path']);
}
variable_set('demo_reset_interval', $values['interval']);
}
function demo_dump() {
$form = array();
return confirm_form($form, t('Are you sure you want to overwrite the site dump?'), 'admin/settings/demo', t('Creating a new dump will overwrite the previous dump of this Drupal installation. This action cannot be undone.'), t('Create'), t('Cancel'));
}
function demo_dump_submit() {
module_invoke('dba', 'auto_backup',
variable_get('demo_dump_path', file_directory_path()),
'demo_site.sql',
array(),
false,
false
);
drupal_goto('admin/settings/demo');
}
function demo_reset_confirm() {
$form = array();
return confirm_form($form, t('Are you sure you want to reset the site?'), 'admin/settings/demo', t('Resetting the site will overwrite all changes that have been made to this Drupal installation since the snapshot.
THIS ACTION CANNOT BE UNDONE!
'), t('Reset'), t('Cancel'));
}
function demo_reset_confirm_submit() {
demo_reset();
drupal_goto('admin/settings/demo');
}
function demo_reset() {
$dumpfile = variable_get('demo_dump_path', file_directory_path()) .'/demo_site.sql';
if (file_exists($dumpfile)) {
if ($fp = fopen($dumpfile, 'r')) {
$query = NULL;
$count = 0;
while (!feof($fp)) {
$line = fgets($fp, 8192);
if ($line && strncmp($line, '--', 2) && strncmp($line, '#', 1)) {
$query .= $line;
if (strpos($line, ';')) {
if (db_query($query, FALSE)) {
++$count;
}
else {
drupal_set_message(t('Query failed: %query', array('%query' => $query)), 'error');
}
$query = NULL;
}
}
}
fclose($fp);
drupal_set_message(t('Succesfully ran !query from dump file %filename.', array('!query' => format_plural($count, '1 query', '@count queries'), '%filename' => $dumpfile)));
}
else {
drupal_set_message(t('Unable to open dump file %filename.', array('%filename' => $dumpfile)), 'error');
}
}
else {
drupal_set_message(t('Dump file %filename does not exist.', array('%filename' => $dumpfile)), 'error');
}
}
/**
* Implementation of hook_cron().
*/
function demo_cron() {
if ($interval = variable_get('demo_reset_interval', 0)) {
// See if it's time for another reset
if ((time() - $interval) >= variable_get('demo_reset_last', 0)) {
variable_set('demo_reset_last', time());
demo_reset();
}
}
}