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<?php
// Activation events
add_action('admin_init', 'layerslider_activation_redirect');
// Activation and de-activation hooks
add_action('admin_init', 'layerslider_activation_routine');
register_activation_hook(LS_ROOT_FILE, 'layerslider_activation');
register_deactivation_hook(LS_ROOT_FILE, 'layerslider_deactivation_scripts');
register_uninstall_hook(LS_ROOT_FILE, 'layerslider_uninstall_scripts');
// Update handler
if(get_option('ls-plugin-version', '1.0.0') !== LS_PLUGIN_VERSION) {
update_option('ls-plugin-version', LS_PLUGIN_VERSION);
layerslider_update_scripts();
}
// Redirect to LayerSlider's main admin page after plugin activation.
// Should not trigger on multisite bulk activation or after upgrading
// the plugin to a newer versions.
function layerslider_activation_redirect() {
if(get_option('layerslider_do_activation_redirect', false)) {
delete_option('layerslider_do_activation_redirect');
if(isset($_GET['activate']) && !isset($_GET['activate-multi'])) {
wp_redirect( admin_url( 'admin.php?page=layerslider-options§ion=about' ) );
}
}
}
function layerslider_activation( ) {
// Plugin activation routines should take care of this, but
// call DB scripts anyway to avoid user intervention issues
// like partially removing the plugin by only deleting the
// database table.
layerslider_create_db_table();
// Call "activated" hook
if( has_action('layerslider_activated') ) {
do_action('layerslider_activated');
}
// Redirect to LS's admin page after activation
update_option('layerslider_do_activation_redirect', 1);
}
function layerslider_activation_routine( ) {
// Bail out early if everything is up-to-date
// and there is nothing to be done.
if( ! version_compare( get_option('ls-db-version', '1.0.0'), LS_DB_VERSION, '<' ) ) {
return;
}
// Update database
layerslider_create_db_table();
update_option('ls-db-version', LS_DB_VERSION);
// Fresh installation
if( ! get_option('ls-installed') ) {
update_option('ls-installed', 1);
// Call "installed" hook
if(has_action('layerslider_installed')) {
do_action('layerslider_installed');
}
}
// Install date
if( ! get_option('ls-date-installed', 0) ) {
update_option('ls-date-installed', time());
}
}
function layerslider_update_scripts() {
// Make sure database is up-to-date,
// perform any changes that might be
// required by an update.
layerslider_activation_routine();
// Make sure to empty all caches due
// to any potential data handling changes
// introduced in an update.
if( function_exists('layerslider_delete_caches') ) {
layerslider_delete_caches();
}
// Trigger 'layerslider_updated' action
// hook, so 3rd parties can run their own
// updates scripts (if any).
if(has_action('layerslider_updated')) {
do_action('layerslider_updated');
}
}
function layerslider_create_db_table() {
global $wpdb;
$charset_collate = '';
// Get DB collate
if( ! empty($wpdb->charset) ) {
$charset_collate = "DEFAULT CHARACTER SET $wpdb->charset";
}
if( ! empty($wpdb->collate) ) {
$charset_collate .= " COLLATE $wpdb->collate";
}
require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
// Table for Sliders
dbDelta("CREATE TABLE {$wpdb->prefix}layerslider (
id int(10) NOT NULL AUTO_INCREMENT,
group_id int(10),
author int(10) NOT NULL DEFAULT 0,
name varchar(100) DEFAULT '',
slug varchar(100) DEFAULT '',
data mediumtext NOT NULL,
date_c int(10) NOT NULL,
date_m int(10) NOT NULL,
schedule_start int(10) NOT NULL DEFAULT 0,
schedule_end int(10) NOT NULL DEFAULT 0,
flag_hidden tinyint(1) NOT NULL DEFAULT 0,
flag_deleted tinyint(1) NOT NULL DEFAULT 0,
flag_popup tinyint(1) NOT NULL DEFAULT 0,
flag_group tinyint(1) NOT NULL DEFAULT 0,
PRIMARY KEY (id)
) $charset_collate;");
// Table for Slider Revisions
dbDelta("CREATE TABLE {$wpdb->prefix}layerslider_revisions (
id int(10) NOT NULL AUTO_INCREMENT,
slider_id int(10) NOT NULL,
author int(10) NOT NULL DEFAULT 0,
data mediumtext NOT NULL,
date_c int(10) NOT NULL,
PRIMARY KEY (id)
) $charset_collate;");
}
// Utility function to verify database tables.
// Returns true if no issues were detected.
function layerslider_verify_db_tables() {
global $wpdb;
// Step 1: Check DB version
if( version_compare( get_option('ls-db-version', '1.0.0'), LS_DB_VERSION, '<' ) ) {
return false;
}
// Step 2: Verify that the DB tables exist
$layerslider = $wpdb->get_var("SHOW TABLES LIKE '{$wpdb->prefix}layerslider'");
$layerslider_revisions = $wpdb->get_var("SHOW TABLES LIKE '{$wpdb->prefix}layerslider_revisions'");
if( empty( $layerslider ) || empty( $layerslider_revisions ) ) {
return false;
}
// Step 3: Some hand picked things to look for
$popup = $wpdb->get_var("SHOW COLUMNS FROM `{$wpdb->prefix}layerslider` LIKE 'flag_popup'");
if( empty( $popup ) ) {
return false;
}
// No error, just return true
return true;
}
function layerslider_deactivation_scripts() {
// Remove capability option, so a user can restore
// his access to the plugin if set the wrong capability
// delete_option('layerslider_custom_capability');
// Remove the help pointer entry to remind a user for the
// help menu when start to use the plugin again
delete_user_meta(get_current_user_id(), 'layerslider_help_wp_pointer');
// Call user hooks
if(has_action('layerslider_deactivated')) {
do_action('layerslider_deactivated');
}
}
function layerslider_uninstall_scripts() {
// Call user hooks
update_option('ls-installed', 0);
if(has_action('layerslider_uninstalled')) {
do_action('layerslider_uninstalled');
}
}
?>
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