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<?php
define('DELETE_ALL_MAX_EXECUTION', 600);
function delete_all_menu() {
$items = array();
$items['admin/content/delete_content'] = array(
'title' => 'Delete all content',
'description' => 'Delete all nodes and comments on this site. This is useful for development sites, or prior to launching the site. Otherwise it destroys all data on a site.',
'page callback' => 'drupal_get_form',
'page arguments' => array(
'delete_all_content',
),
'access arguments' => array(
'administer nodes',
),
'type' => MENU_NORMAL_ITEM,
);
$items['admin/content/delete_content/confirm'] = array(
'title' => 'Confirm deletion of all content',
'page callback' => 'drupal_get_form',
'page arguments' => array(
'delete_all_content_confirm',
),
'access arguments' => array(
'administer nodes',
),
'type' => MENU_CALLBACK,
);
$items['admin/content/delete_users'] = array(
'title' => 'Delete all users',
'description' => 'Delete all users on this site. This is useful for development sites, or prior to launching the site. Otherwise it destroys all data on a site.',
'page callback' => 'drupal_get_form',
'page arguments' => array(
'delete_all_users',
),
'access arguments' => array(
'administer users',
),
'type' => MENU_NORMAL_ITEM,
);
return $items;
}
function delete_all_content() {
$result = db_query("SELECT type, COUNT(*) AS num FROM {node} GROUP BY type");
$count = array();
foreach ($result as $data) {
$count[$data->type] = $data->num;
}
$types = array();
foreach (node_type_get_types() as $type => $info) {
if (array_key_exists($type, $count)) {
$types[$type] = $info->name . ' (' . $count[$type] . ')';
}
}
asort($types);
if (module_exists('taxonomy')) {
$result = db_query("SELECT taxonomy_vocabulary.machine_name AS vocabulary, COUNT(*) AS num FROM {taxonomy_vocabulary} INNER JOIN {taxonomy_term_data} USING (vid) GROUP BY vocabulary");
$taxocount = array();
foreach ($result as $data) {
$taxocount[$data->vocabulary] = $data->num;
}
$vocabularies = array();
foreach (taxonomy_get_vocabularies() as $vocabulary) {
$name = $vocabulary->machine_name;
if (array_key_exists($name, $taxocount)) {
$vocabularies[$name] = $vocabulary->name . ' (' . $taxocount[$name] . ')';
}
}
asort($vocabularies);
}
if (empty($types) && empty($vocabularies)) {
$form = array();
$form['no_content_types'] = array(
'#prefix' => '<p>',
'#suffix' => '</p>',
'#value' => t('There are no content types with content available to delete. You must <a href="@node-add">create some content</a> in order to delete it.', array(
'@node-add' => url('node/add'),
)),
);
if (module_exists('devel')) {
$form['generate_content_suggestion'] = array(
'#prefix' => '<p>',
'#suffix' => '</p>',
'#value' => t('You can generate content quickly at the <a href="@generate-content-page">generate content page</a>.', array(
'@generate-content-page' => url('admin/generate/content'),
)),
);
}
return $form;
}
drupal_add_js(drupal_get_path('module', 'delete_all') . '/delete_all.js');
$form = array();
$form['all'] = array(
'#type' => 'checkbox',
'#default_value' => FALSE,
'#title' => t('Delete All Content'),
'#description' => t('Select to delete all content'),
'#attributes' => array(
'class' => array(
'delete-all',
),
),
);
if (module_exists('taxonomy')) {
$form['taxonomy'] = array(
'#type' => 'checkbox',
'#default_value' => FALSE,
'#title' => t('Delete all Taxonomy'),
'#description' => t('Select to delete all taxonomy terms'),
'#attributes' => array(
'class' => array(
'delete-all',
),
),
);
}
$form['reset'] = array(
'#type' => 'checkbox',
'#default_value' => FALSE,
'#title' => t('Reset node count'),
'#description' => t('Select to reset the node count'),
'#attributes' => array(
'class' => array(
'delete-reset',
),
),
);
$form['type-fieldset'] = array(
'#type' => 'fieldset',
'#title' => t('Node types'),
'#collapsible' => TRUE,
'#collapsed' => FALSE,
'types' => array(
'#type' => 'checkboxes',
'#options' => $types,
'#description' => t('Select the types of node content to delete'),
),
);
if (module_exists('taxonomy')) {
$form['taxonomy-fieldset'] = array(
'#type' => 'fieldset',
'#title' => t('Taxonomy'),
'#collapsible' => TRUE,
'#collapsed' => FALSE,
'vocabularies' => array(
'#type' => 'checkboxes',
'#options' => $vocabularies,
'#description' => t('Select the taxonomy vocabularies to delete'),
),
);
}
$form['method-fieldset'] = array(
'#type' => 'fieldset',
'#title' => t('Method'),
'#collapsible' => TRUE,
'#collapsed' => FALSE,
'method' => array(
'#type' => 'radios',
'#title' => t('Method'),
'#options' => array(
'normal' => t('Normal'),
'quick' => t('Quick'),
),
'#default_value' => 'normal',
'#description' => t('Normal node delete calls node_delete() on every node in the database. If you have only a few hundred nodes, this can take a very long time. Use the quick node delete method to get around this problem. This method deletes directly from the database, skipping the extra php processing. The downside is that it can miss related tables that are normally handled by module hook_delete\'s.'),
),
);
$form['submit'] = array(
'#type' => 'submit',
'#value' => t('Delete'),
);
$form['#action'] = url('admin/content/delete_content/confirm');
return $form;
}
function delete_all_content_confirm() {
$results = $_POST;
$form = array();
$form['method'] = array(
'#type' => 'hidden',
'#value' => isset($results['method']) ? $results['method'] : '',
);
if (!isset($results['all'])) {
$results['all'] = '';
}
if (!isset($results['reset'])) {
$results['reset'] = '';
}
$form['all'] = array(
'#type' => 'hidden',
'#value' => isset($results['all']) ? $results['all'] : '',
);
if (isset($results['all']) && !isset($results['types'])) {
if (!empty($results['all'])) {
$form['reset'] = array(
'#type' => 'hidden',
'#value' => $results['reset'],
);
$form['all_warning'] = array(
'#markup' => '<p>' . t('All content in all content types will be deleted. Be sure to have a backup of any important data!') . '</p>',
);
}
if (!empty($results['reset'])) {
if (empty($results['all'])) {
$form['all_reset'] = array(
'#markup' => '<p>' . t('Sorry, we can\'t reset the counters because you are not deleting all nodes.') . '</p>',
);
}
else {
$form['all_reset'] = array(
'#markup' => '<p>' . t('Node, revision and comment counts will be reset.') . '</p>',
);
}
}
}
if (isset($results['types']) && is_array($results['types'])) {
foreach ($results['types'] as $key_type => $type) {
$form['type_' . $key_type] = array(
'#type' => 'hidden',
'#value' => $type,
);
$info = node_type_get_types('type', $type);
$info = $info[$type];
$form[$type . '_warning'] = array(
'#markup' => '<p>' . t('All node content of type %type will be deleted. Be sure to have a backup of any important data!', array(
'%type' => $info->name,
)) . '</p>',
);
}
}
if (module_exists('taxonomy')) {
$vocabulary_info = array();
foreach (taxonomy_get_vocabularies() as $vocabulary) {
$vocabulary_info[$vocabulary->machine_name] = $vocabulary->name;
}
if (isset($results['vocabularies'])) {
if (is_array($results['vocabularies'])) {
foreach ($results['vocabularies'] as $key_vocabulary => $vocabulary) {
$form['vocabulary_' . $key_vocabulary] = array(
'#type' => 'hidden',
'#value' => $vocabulary,
);
$info = $vocabulary_info[$vocabulary];
$form[$vocabulary . '_warning'] = array(
'#markup' => '<p>' . t('All taxonomy terms of vocabulary %vocabulary will be deleted. Be sure to have a backup of any important data!', array(
'%vocabulary' => $info,
)) . '</p>',
);
}
}
}
}
$keys = array_filter(array_keys($results), "_delete_all_type_keys");
foreach ($keys as $key) {
$form[$key] = array(
'#type' => 'hidden',
'#value' => $results[$key],
);
}
$vocabulary_keys = array_filter(array_keys($results), "_delete_all_vocabulary_keys");
foreach ($vocabulary_keys as $vkey) {
$form[$vkey] = array(
'#type' => 'hidden',
'#value' => $results[$vkey],
);
}
return confirm_form($form, t('Are you sure you wish to delete content?'), 'admin/content/delete_content', NULL, t('Delete all content now'), t('Cancel delete of all content'));
}
function delete_all_content_confirm_submit($form, &$form_state) {
$types = array();
$vocabularies = array();
$keys = array_filter(array_keys($form_state['values']), "_delete_all_type_keys");
foreach ($keys as $key) {
$types[] = $form_state['values'][$key];
}
if (isset($form_state['values']['taxonomy'])) {
$vocabulary_info = array();
foreach (taxonomy_get_vocabularies() as $vocabulary) {
$vocabularies[$vocabulary->machine_name] = $vocabulary->vid;
}
}
$vkeys = array_filter(array_keys($form_state['values']), "_delete_all_vocabulary_keys");
foreach ($vkeys as $key) {
$vocabularies[] = $form_state['values'][$key];
}
switch ($form_state['values']['method']) {
case 'normal':
$count = _delete_all_normal($form_state['values']['all'], $types, $vocabularies);
break;
case 'quick':
if ($form_state['values']['all']) {
$result = db_query("SELECT DISTINCT type FROM {node}");
foreach ($result as $data) {
$types[] = $type;
}
if ($form_state['values']['taxonomy']) {
$result = db_query("SELECT DISTINCT machine_name FROM {taxonomy_vocabulary}");
foreach ($result as $data) {
$vocabularies[] = $type;
}
}
}
$count = _delete_all_quick($types, $vocabularies);
break;
}
if (!$types) {
db_query("DELETE FROM {url_alias} WHERE source LIKE 'node/%%'");
drupal_set_message(t('All nodes, comments and URL aliases have been deleted. Number of nodes deleted: !count_nodes.', array(
'!count' => check_plain($count['nodes']),
)));
if ($count['terms']) {
drupal_set_message(t('All taxonomy terms deleted. Number of terms deleted: !count_terms.', array(
'!count' => check_plain($count['terms']),
)));
}
if ($form_state['values']['reset']) {
db_query("ALTER TABLE node AUTO_INCREMENT=1");
db_query("ALTER TABLE node_revision AUTO_INCREMENT=1");
if (module_exists('comment')) {
db_query("ALTER TABLE comment AUTO_INCREMENT=1");
drupal_set_message(t('All node, revision and comment counts have been reset.'));
}
else {
drupal_set_message(t('All node and revision counts have been reset.'));
}
}
}
else {
drupal_set_message(t('Nodes and comments of type @type have been deleted. Number of nodes deleted: !count.', array(
'!count' => check_plain($count),
'@type' => implode(', ', $types),
)));
}
drupal_goto('admin');
}
function _delete_all_normal($all, $types, $vocabularies = NULL) {
$deleted = array(
'nodes' => 0,
'terms' => 0,
);
if (is_array($types) && count($types) > 0) {
foreach ($types as $type) {
$result = db_query('SELECT nid FROM {node} WHERE type = :type', array(
':type' => $type,
));
}
}
else {
$result = db_query('SELECT nid FROM {node}');
}
if ($result) {
foreach ($result as $data) {
set_time_limit(30);
node_delete($data->nid);
$deleted['nodes']++;
}
}
if ($vocabularies) {
$vocabulary_info = array();
foreach (taxonomy_get_vocabularies() as $vocabulary) {
$vocabulary_info[$vocabulary->machine_name] = $vocabulary->vid;
}
foreach ($vocabularies as $vocabulary) {
foreach (taxonomy_get_tree($vocabulary_info[$vocabulary]) as $term) {
taxonomy_term_delete($term->tid);
$deleted['terms']++;
}
}
}
return $deleted;
}
function _delete_all_quick($types, $vocabularies) {
$deleted = array(
'nodes' => 0,
'terms' => 0,
);
foreach ($types as $type) {
set_time_limit(240);
$count = db_select('node')
->condition('type', $type)
->countQuery()
->execute()
->fetchField();
if ($count) {
$nid_vid = array(
'nid',
'vid',
);
$nid = array(
'nid',
);
$tables = array(
'node_revisions' => $nid_vid,
'comments' => $nid,
);
$tables[_content_tablename($type, CONTENT_DB_STORAGE_PER_CONTENT_TYPE)] = $nid_vid;
$content = content_types($type);
if (count($content['fields'])) {
foreach ($content['fields'] as $field) {
$field_info = content_database_info($field);
$tables[$field_info['table']] = $nid_vid;
}
}
switch ($GLOBALS['db_type']) {
case 'mysql':
case 'mysqli':
$result_tables = db_query("SHOW TABLES");
while ($data = db_fetch_array($result_tables)) {
$table = array_pop($data);
if (isset($tables[$table]) || substr($table, 0, 8) == 'content_') {
continue;
}
$result_cols = db_query("SHOW COLUMNS FROM %s", $table);
$cols = array();
while ($data = db_fetch_array($result_cols)) {
$cols[$data['Field']] = $data;
}
if (isset($cols['nid'])) {
$tables[$table] = isset($cols['vid']) ? $nid_vid : $nid;
}
}
break;
case 'pgsql':
break;
}
$sql = array(
'delete' => array(),
'from' => array(),
'where' => array(),
);
$index = 0;
foreach ($tables as $table => $cols) {
$table = '{' . $table . '}';
$sql['cols'][] = "t{$index}.*";
$on = array();
foreach ($cols as $col) {
$on[] = "t{$index}.{$col} = n.{$col}";
}
$sql['join'][] = " LEFT JOIN {$table} t{$index} ON " . implode(' AND ', $on);
$index++;
}
$delete_sql = "DELETE n.*, " . implode(', ', $sql['cols']) . " FROM {node} n " . implode(' ', $sql['join']);
db_query($delete_sql . " WHERE n.type = '%s'", $type);
$deleted['nodes'] += $count;
}
}
$vocabulary_info = array();
foreach (taxonomy_get_vocabularies() as $vocabulary) {
$vocabulary_info[$vocabulary->machine_name] = $vocabulary->vid;
}
foreach ($vocabularies as $vocabulary) {
foreach (taxonomy_get_tree($vocabulary_info[$vocabulary]) as $term) {
taxonomy_term_delete($term->tid);
$deleted['terms']++;
}
}
return $deleted;
}
function delete_all_users() {
$form = array();
return confirm_form($form, t('Are you sure you want to delete all users (uid > 1)?'), 'admin', t('This will delete all users except for User 1 (the administrative user). This action cannot be undone'), t('Delete'), t('Cancel'), 'delete_all_content');
}
function delete_all_users_submit($form, &$form_state) {
ini_set('max_execution_time', DELETE_ALL_MAX_EXECUTION);
$count = delete_all_users_delete();
drupal_set_message(t('All users have been deleted. Number of users deleted: !count.', array(
'!count' => check_plain($count),
)));
drupal_goto('admin');
}
function delete_all_users_delete($roles = NULL) {
$count = 0;
if (!$roles) {
$result = db_query('SELECT uid FROM {users} WHERE uid > 1');
foreach ($result as $data) {
user_delete($data->uid);
$count++;
}
db_query("DELETE FROM {url_alias} WHERE source LIKE 'user/%%'");
}
else {
if (is_array($roles)) {
$result = array();
foreach ($roles as $role) {
$rid = db_select('role', 'r')
->fields('r', array(
'rid',
))
->condition('name', $role, '=')
->execute()
->fetchField();
$result = array_merge($result, db_select('users_roles', 'ur')
->fields('ur', array(
'uid',
))
->condition('rid', $rid, '=')
->execute()
->fetchCol('uid'));
}
}
else {
$rid = db_select('role', 'r')
->fields('r', array(
'rid',
))
->condition('name', $roles, '=')
->execute()
->fetchField();
$result = db_select('users_roles', 'ur')
->fields('ur', array(
'uid',
))
->condition('rid', $rid, '=')
->execute()
->fetchCol('uid');
}
foreach ($result as $data) {
user_delete($data);
$count++;
}
}
return $count;
}
function _delete_all_type_keys($var) {
return strpos($var, 'type_') === 0 ? TRUE : FALSE;
}
function _delete_all_vocabulary_keys($var) {
return strpos($var, 'vocabulary_') === 0 ? TRUE : FALSE;
}