/**
* Executed when the admin page is loaded
*/
public function load()
{
/* Make sure the user has permission to be here */
if (!current_user_can(get_snippets_cap())) {
wp_die(__('You are not authorized to access this page.', 'code-snippets'));
}
/* Create the snippet tables if they don't exist */
create_code_snippets_tables();
}
/**
* Initializes the list table class and loads the help tabs
* for the Manage Snippets page
*
* @since 1.0
* @access private
*/
function code_snippets_load_manage_menu()
{
/* Make sure the user has permission to be here */
if (!current_user_can(get_snippets_cap())) {
wp_die(__('You are not authorized to access this page.', 'code-snippets'));
}
/* Create the snippet tables if they don't exist */
create_code_snippets_tables();
/* Load the screen help tabs */
require plugin_dir_path(__FILE__) . 'admin-help.php';
/* Initialize the snippet table class */
require_once plugin_dir_path(__FILE__) . 'class-list-table.php';
global $code_snippets_list_table;
$code_snippets_list_table = new Code_Snippets_List_Table();
$code_snippets_list_table->prepare_items();
}
/**
* Processes import files and loads the help tabs for the Import Snippets page
*
* @since 1.3
*
* @uses import_snippets() To process the import file
* @uses wp_redirect() To pass the import results to the page
* @uses add_query_arg() To append the results to the current URI
*/
function code_snippets_load_import_menu()
{
$network = get_current_screen()->is_network;
/* Make sure the user has permission to be here */
if (!current_user_can(get_snippets_cap())) {
wp_die(__('You are not access this page.', 'code-snippets'));
}
/* Create the snippet tables if they don't exist */
create_code_snippets_tables();
/* Process import files */
if (isset($_FILES['code_snippets_import_file']['tmp_name'])) {
/* Import the snippets. The result is the number of snippets that were imported */
$result = import_snippets($_FILES['code_snippets_import_file']['tmp_name'], $network);
/* Send the amount of imported snippets to the page */
$url = add_query_arg(false === $result ? array('error' => true) : array('imported' => $result));
wp_redirect(esc_url_raw($url));
}
/* Load the screen help tabs */
require plugin_dir_path(__FILE__) . 'admin-help.php';
}
/**
* Preform upgrade tasks such as deleting and updating options
* @since 2.0
*/
function code_snippets_upgrader()
{
/* Get the current plugin version from the database */
$prev_version = get_option('code_snippets_version');
/* Check if this is the first plugin run */
if (!$prev_version) {
/* Register capabilities */
$role = get_role(apply_filters('code_snippets_role', 'administrator'));
$role->add_cap(apply_filters('code_snippets_cap', 'manage_snippets'));
}
/* Check if we have upgraded from an older version */
if (version_compare($prev_version, CODE_SNIPPETS_VERSION, '<')) {
/* Upgrade the database tables */
create_code_snippets_tables(true);
/* Update the plugin version stored in the database */
update_option('code_snippets_version', CODE_SNIPPETS_VERSION);
}
/* Run multisite-only upgrades */
if (is_multisite() && is_main_site()) {
/* Get the current plugin version from the database */
$prev_ms_version = get_site_option('code_snippets_version');
/* Check if this is the first plugin run */
if (!$prev_ms_version) {
/* Register multisite capabilities */
$network_cap = apply_filters('code_snippets_network_cap', 'manage_network_snippets');
$supers = get_super_admins();
foreach ($supers as $admin) {
$user = new WP_User(0, $admin);
$user->add_cap($network_cap);
}
}
/* Check if we have upgraded from an older version */
if (version_compare($prev_ms_version, CODE_SNIPPETS_VERSION, '<')) {
/* Update the plugin version stored in the database */
update_site_option('code_snippets_version', CODE_SNIPPETS_VERSION);
}
}
}
/**
* Loads the help tabs for the Edit Snippets page
*
* @since 1.0
* @access private
* @uses wp_redirect To pass the results to the page
*/
function code_snippets_load_single_menu()
{
/* Make sure the user has permission to be here */
if (!current_user_can(get_snippets_cap())) {
wp_die(__('You are not authorized to access this page.', 'code-snippets'));
}
/* Create the snippet tables if they don't exist */
create_code_snippets_tables();
/* Load the screen help tabs */
require plugin_dir_path(__FILE__) . 'admin-help.php';
/* Enqueue the code editor and other scripts and styles */
add_action('admin_enqueue_scripts', 'code_snippets_enqueue_codemirror', 9);
/* Don't allow visiting the edit snippet page without a valid ID */
if (code_snippets_get_menu_slug('edit') === $_REQUEST['page']) {
if (!isset($_REQUEST['id']) || 0 == $_REQUEST['id']) {
wp_redirect(code_snippets_get_menu_url('add'));
exit;
}
}
/* Make sure the nonce validates before we do any snippet ops */
if (!isset($_REQUEST['_wpnonce']) || !wp_verify_nonce($_REQUEST['_wpnonce'], 'save_snippet')) {
return;
}
/* Save the snippet if one has been submitted */
if (isset($_POST['save_snippet']) || isset($_POST['save_snippet_activate']) || isset($_POST['save_snippet_deactivate'])) {
/* Activate or deactivate the snippet before saving if we clicked the button */
if (isset($_POST['save_snippet_activate'])) {
$_POST['snippet_active'] = 1;
} elseif (isset($_POST['save_snippet_deactivate'])) {
$_POST['snippet_active'] = 0;
}
/* Save the snippet to the database */
$result = save_snippet(stripslashes_deep($_POST));
/* Build the status message and redirect */
$query_args = array();
if ($result && isset($_POST['save_snippet_activate'])) {
/* Snippet was activated addition to saving*/
$query_args['activated'] = true;
} elseif ($result && isset($_POST['save_snippet_deactivate'])) {
/* Snippet was deactivated addition to saving*/
$query_args['deactivated'] = true;
}
if (!$result || $result < 1) {
/* An error occurred */
$query_args['invalid'] = true;
} elseif (isset($_POST['snippet_id'])) {
/* Existing snippet was updated */
$query_args['id'] = $result;
$query_args['updated'] = true;
} else {
/* New snippet was added */
$query_args['id'] = $result;
$query_args['added'] = true;
}
/* Redirect to edit snippet page */
wp_redirect(add_query_arg($query_args, code_snippets_get_menu_url('edit')));
} elseif (isset($_POST['snippet_id'], $_POST['delete_snippet'])) {
delete_snippet($_POST['snippet_id']);
wp_redirect(add_query_arg('delete', true, code_snippets_get_menu_url('manage')));
} elseif (isset($_POST['snippet_id'], $_POST['export_snippet'])) {
export_snippets($_POST['snippet_id']);
}
}