RCCWP_Application::Install PHP Method

    public static function Install()
    {
        include_once 'RCCWP_Options.php';
        global $wpdb;
        // First time installation
        if (get_option(RC_CWP_OPTION_KEY) === false) {
            // Giving full rights to folders. thanks Akis Kesoglou
            wp_mkdir_p(MF_UPLOAD_FILES_DIR);
            wp_mkdir_p(MF_CACHE_DIR);
            wp_mkdir_p(MF_GET_CACHE_DIR);
            //Initialize options
            $options['condense-menu'] = 0;
            $options['hide-non-standart-content'] = 1;
            $options['hide-write-post'] = 0;
            $options['hide-write-page'] = 0;
            $options['hide-visual-editor'] = 0;
            $options['prompt-editing-post'] = 0;
            $options['assign-to-role'] = 0;
            $options['default-custom-write-panel'] = "";
            RCCWP_Options::Update($options);
        }
        // Check blog database
        if (get_option("RC_CWP_BLOG_DB_VERSION") == '') {
            update_option("RC_CWP_BLOG_DB_VERSION", 0);
        }
        if (get_option("RC_CWP_BLOG_DB_VERSION") < RC_CWP_DB_VERSION) {
            $BLOG_DBChanged = true;
        } else {
            $BLOG_DBChanged = false;
        }
        // Install blog tables
        if (!$wpdb->get_var($wpdb->prepare("SHOW TABLES LIKE %s", MF_TABLE_POST_META)) == MF_TABLE_POST_META || $BLOG_DBChanged) {
            $blog_tables[] = "CREATE TABLE " . MF_TABLE_POST_META . " (\n\t\t\t\tid integer NOT NULL,\n\t\t\t\tgroup_count integer NOT NULL,\n\t\t\t\tfield_count integer NOT NULL,\n\t\t\t\tpost_id integer NOT NULL,\n\t\t\t\tfield_name text NOT NULL,\n\t\t\t\torder_id integer NOT NULL,\n\t\t\t\tPRIMARY KEY (id) ) DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci";
            // try to get around
            // these includes like http://trac.mu.wordpress.org/ticket/384
            // and http://www.quirm.net/punbb/viewtopic.php?pid=832#p832
            if (file_exists(ABSPATH . 'wp-includes/pluggable.php')) {
                require_once ABSPATH . 'wp-includes/pluggable.php';
            } else {
                require_once ABSPATH . 'wp-includes/pluggable-functions.php';
            }
            require_once ABSPATH . 'wp-admin/includes/upgrade.php';
            foreach ($blog_tables as $blog_table) {
                dbDelta($blog_table);
            }
        }
        update_option('RC_CWP_BLOG_DB_VERSION', RC_CWP_DB_VERSION);
        // Upgrade Blog
        if ($BLOG_DBChanged) {
            RCCWP_Application::UpgradeBlog();
        }
        if (RCCWP_Application::IsWordpressMu()) {
            if (get_site_option("RC_CWP_DB_VERSION") == '') {
                update_site_option("RC_CWP_DB_VERSION", 0);
            }
            if (get_site_option("RC_CWP_DB_VERSION") < RC_CWP_DB_VERSION) {
                $DBChanged = true;
            } else {
                $DBChanged = false;
            }
        } else {
            if (get_option("RC_CWP_DB_VERSION") == '') {
                update_option("RC_CWP_DB_VERSION", 0);
            }
            if (get_option("RC_CWP_DB_VERSION") < RC_CWP_DB_VERSION) {
                $DBChanged = true;
            } else {
                $DBChanged = false;
            }
        }
        // -- Create Tables if they don't exist or the database changed
        $not_installed = false;
        if (!$wpdb->get_var($wpdb->prepare("SHOW TABLES LIKE %s", MF_TABLE_PANELS)) == MF_TABLE_PANELS) {
            $not_installed = true;
        }
        if ($not_installed || $DBChanged) {
            $qst_tables[] = "CREATE TABLE " . MF_TABLE_PANELS . " (\n\t\t\t\tid int(11) NOT NULL auto_increment,\n\t\t\t\tname varchar(255) NOT NULL,\n\t\t\t\tsingle tinyint(1) NOT NULL default 0,\n\t\t\t\tdescription varchar(255),\n\t\t\t\tdisplay_order int(11),\n\t\t\t\tcapability_name varchar(255) NOT NULL,\n\t\t\t\ttype varchar(255) NOT NULL,\n        expanded tinyint NOT NULL DEFAULT 1,\n\t\t\t\tPRIMARY KEY (id) ) DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci";
            $qst_tables[] = "CREATE TABLE " . MF_TABLE_GROUP_FIELDS . " (\n\t\t\t\tid int(11) NOT NULL auto_increment,\n\t\t\t\tgroup_id int(11) NOT NULL,\n\t\t\t\tname varchar(255) NOT NULL,\n\t\t\t\tdescription varchar(255),\n\t\t\t\tdisplay_order int(11),\n\t\t\t\tdisplay_name enum('true', 'false') NOT NULL,\n\t\t\t\tdisplay_description enum('true', 'false') NOT NULL,\n\t\t\t\ttype tinyint NOT NULL,\n\t\t\t\tCSS varchar(100),\n\t\t\t\trequired_field tinyint,\n\t\t\t\tduplicate tinyint(1) NOT NULL,\n\t\t\t\thelp_text text,\n\t\t\t\tPRIMARY KEY (id) ) DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci";
            $qst_tables[] = "CREATE TABLE " . MF_TABLE_CUSTOM_FIELD_OPTIONS . " (\n\t\t\t\tcustom_field_id int(11) NOT NULL,\n\t\t\t\toptions text,\n\t\t\t\tdefault_option text,\n\t\t\t\tPRIMARY KEY (custom_field_id) ) DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci";
            $qst_tables[] = "CREATE TABLE " . MF_TABLE_PANEL_CATEGORY . " (\n\t\t\t\tpanel_id int(11) NOT NULL,\n\t\t\t\tcat_id varchar(100) NOT NULL,\n\t\t\t\tPRIMARY KEY (panel_id, cat_id) ) DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci";
            $qst_tables[] = "CREATE TABLE " . MF_TABLE_PANEL_STANDARD_FIELD . " (\n\t\t\t\tpanel_id int(11) NOT NULL,\n\t\t\t\tstandard_field_id int(11) NOT NULL,\n\t\t\t\tPRIMARY KEY (panel_id, standard_field_id) ) DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci";
            $qst_tables[] = "CREATE TABLE " . MF_TABLE_CUSTOM_FIELD_PROPERTIES . " (\n\t\t\t\tcustom_field_id int(11) NOT NULL AUTO_INCREMENT,\n\t\t\t\tproperties TEXT,\n\t\t\t\tPRIMARY KEY (custom_field_id)\n\t\t\t\t) DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci;";
            $qst_tables[] = "CREATE TABLE " . MF_TABLE_PANEL_GROUPS . " (\n\t\t\t\tid int(11) NOT NULL auto_increment,\n\t\t\t\tpanel_id int(11) NOT NULL,\n\t\t\t\tname varchar(255) NOT NULL,\n\t\t\t\tduplicate tinyint(1) NOT NULL,\n        expanded tinyint,\n\t\t\t\tat_right tinyint(1) NOT NULL,\n\t\t\t\tPRIMARY KEY (id) ) DEFAULT CHARACTER SET utf8 COLLATE utf8_unicode_ci";
            // try to get around
            // these includes like http://trac.mu.wordpress.org/ticket/384
            // and http://www.quirm.net/punbb/viewtopic.php?pid=832#p832
            if (file_exists(ABSPATH . 'wp-includes/pluggable.php')) {
                require_once ABSPATH . 'wp-includes/pluggable.php';
            } else {
                require_once ABSPATH . 'wp-includes/pluggable-functions.php';
            }
            require_once ABSPATH . 'wp-admin/includes/upgrade.php';
            foreach ($qst_tables as $qst_table) {
                dbDelta($qst_table);
            }
            if (RCCWP_Application::IsWordpressMu()) {
                update_site_option('RC_CWP_DB_VERSION', RC_CWP_DB_VERSION);
            } else {
                update_option('RC_CWP_DB_VERSION', RC_CWP_DB_VERSION);
            }
        }
        //Import Default modules
        if (RCCWP_Application::IsWordpressMu()) {
            if (get_site_option('MAGIC_FIELDS_fist_time') == '') {
                update_site_option('MAGIC_FIELDS_fist_time', '1');
            }
        } else {
            if (get_option('MAGIC_FIELDS_fist_time') == '') {
                update_option('MAGIC_FIELDS_fist_time', '1');
            }
        }
        //Post types
        if (is_wp30()) {
            // require_once(MF_PATH.'/MF_PostTypesPage.php');
            // MF_PostTypePages::CreatePostTypesTables();
        }
        RCCWP_Application::UpgradeBlog();
    }

/**
 *  Here actions/hooks only required in the Admin area
 */
if (is_admin()) {
    require_once 'RCCWP_Application.php';
    require_once 'RCCWP_WritePostPage.php';
    register_activation_hook(dirname(__FILE__) . '/Main.php', array('RCCWP_Application', 'Install'));
    //Attaching the Magic Fields Menus
    add_action('admin_menu', array('RCCWP_Menu', 'AttachMagicFieldsMenus'));
    if ($is_wordpress_mu) {
        //checking if the method Install was executed before
        //if exists the option called "mf_custom_write_panel"
        //is because Magic Fields was already installed
        $option = get_option('mf_custom_write_panel');
        if (!$option) {
            RCCWP_Application::Install();
            add_action('admin_menu', array('RCCWP_Application', 'ContinueInstallation'));
        }
    }
    if (get_option(RC_CWP_OPTION_KEY) !== false) {
        require_once 'RCCWP_Processor.php';
        add_action('init', array('RCCWP_Processor', 'Main'));
        add_action('admin_menu', array('RCCWP_Menu', 'AttachCustomWritePanelMenuItems'));
        add_action('admin_menu', array('RCCWP_Menu', 'DetachWpWritePanelMenuItems'));
        add_action('admin_menu', array('RCCWP_Menu', 'AttachOptionsMenuItem'));
        add_filter('posts_where', array('RCCWP_Menu', 'FilterPostsPagesList'));
        add_action('admin_head', array('RCCWP_Menu', 'HighlightCustomPanel'));
        add_action('admin_head', 'mf_admin_style');
        // -- Hook all functions related to saving posts in order to save custom fields values
        require_once 'RCCWP_Post.php';
        add_action('save_post', array('RCCWP_Post', 'SaveCustomFields'));