$this is the widget object, an instance of the relevant widget class. It includes things like the widget ID and class identifiers which are required for the method that generate the input id and name attribute in the snippet $instance is the array which includes the widget setting. The settings ae not stored as part … Read more
Solution : hover on the title bar of your widget, then click configure Don’t ask me why this works like this but it does.
Clearing things up First, there’s a slight misunderstanding. wp_dashboard_setup is an action and not a filter. If it would be a filter, it would have one or multiple arguments and would need to return the first one. How-To #1 For an example of this action, see the following mu-plugin I use: <?php /** * Plugin … Read more
Huh. It had never actually occurred to me to use widget instance as cache. I hadn’t ever seen such implementation either. This is quite an original idea, and as such it is hard to accurately point out benefits and issues with implementation. For starters update() doesn’t actually save anything, it just used as check for … Read more
You should do it with after_setup_theme action: function remove_inactive_widgets() { $sidebars_widgets = get_option( ‘sidebars_widgets’ ); $sidebars_widgets[‘wp_inactive_widgets’] = array(); update_option( ‘sidebars_widgets’, $sidebars_widgets ); } add_action( ‘after_setup_theme’, ‘remove_inactive_widgets’ );
This is a known issue and will be taken care of soon, assuming you are using the “Twenty Eleven” theme: see this link. The bundled Twenty Eleven theme has some styling issues for pages with sidebars (See Trac ticket #36510)
This plugin might be the easy way. http://wordpress.org/extend/plugins/add-widgets-to-page/ But for a scratch method… Look into Theme Twenty-Ten’s functions.php file and find where the dynamic sidebars are registered. It looks like this: <?php function twentyten_widgets_init() { // Area 1, located at the top of the sidebar. register_sidebar( array( ‘name’ => __( ‘Primary Widget Area’, ‘twentyten’ ), … Read more
I don’t think there is anything specifically for this. You might want to look at the plugin code to find calls to get_option() and see what keys they are using, then browse the DB table wp_options with phpMyAdmin (or whatever) and grab the associated values. Without specific support from the plugin this can be iffy … Read more
There are quite a few plugins tagged books in official repository. A lot of them seems to pull covers from services like Amazon, which may or may not fit your needs. If you want to simply display some self-hosted images with links and basic categorizing/sorting, personally I like to use Links for such.
Confirming… Yes, there’s currently (WP 3.4.1) no way to modify the access arguments for admin menu pages. The only one, that you can modify through the public wp API is the »Comments« menu item. All others are registered by hand. But there’s help coming from @scribu (read more at the trac ticket) who has so … Read more