widgets - Read For Learn

Limit the number of inactive widgets

Tested under v3.2.1: $sidebars = wp_get_sidebars_widgets(); if(count($sidebars[‘wp_inactive_widgets’]) > 10){ $new_inactive = array_slice($sidebars[‘wp_inactive_widgets’],-10,10); // remove the dead widget options $dead_inactive = array_slice($sidebars[‘wp_inactive_widgets’],0,count($sidebars[‘wp_inactive_widgets’])-10); foreach($dead_inactive as $dead){ $pos = strpos($dead,’-‘); $widget_name = substr($dead,0,$pos); $widget_number = substr($dead,$pos+1); $option = get_option(‘widget_’.$widget_name); unset($option[$widget_number]); update_option(‘widget_’.$widget_name,$option); } // save our new widget setup $sidebars[‘wp_inactive_widgets’] = $new_inactive; wp_set_sidebars_widgets($sidebars); } The above code limits the … Read more

How can I use the built in WordPress “browse link” functionality?

I invoke the link dialogue within the metabox class I use for development. Its a tad hacky but can be done, until something more robust is developed. You can invoke the link box by first enqueing the required js, and then interacting with the wp-link js files methods. Make sure you have enqueued wp-link 1 … Read more

What is the difference between wp_register_sidebar_widget and register_widget?

wp_register_sidebar_widget() is part of the old widgets API. Sidebar widgets used to be built procedurally … in a non-reusable fashion (i.e. you could only ever have one of each). register_widget() was introduced with the new Widgets API and takes an object/class as an input rather than actual widget parameters. WordPress can instantiate as many copies … Read more

How to get post ID of the current page/post inside a widget?

You can make use of get_queried_object() here, which is a wrapper for $wp_query and returns the whole post metadata. Here’s a sample code: $queried_object = get_queried_object(); if ( $queried_object ) { $post_id = $queried_object->ID; echo $post_id; }

Custom Post Type Data in Sidebar widgets?

UPDATE: Based upon the update of the question I think I need to explicitly state that what is asked in the question can be done with the answer below, just used custom fields in the “Car” custom post type for each of the items you want displayed on all pages for a given car. If … Read more

Adding a div to wrap widget content after the widget title

In addition to Toscho’s answer here’s what you need for a robust solution: // if no title then add widget content wrapper to before widget add_filter( ‘dynamic_sidebar_params’, ‘check_sidebar_params’ ); function check_sidebar_params( $params ) { global $wp_registered_widgets; $settings_getter = $wp_registered_widgets[ $params[0][‘widget_id’] ][‘callback’][0]; $settings = $settings_getter->get_settings(); $settings = $settings[ $params[1][‘number’] ]; if ( $params[0][ ‘after_widget’ ] == … Read more

Add class to before_widget from within a custom widget

Aha, so the $before_widget variable is a string representing div element: <div class=”widget my” id=”my-widget-1″> . So I checked the $before_widget for the “class” sub-string and added my $widget_width value to it. The code is from my custom widget file: function widget( $args, $instance ) { extract( $args ); … //other code $widget_width = !empty($instance[‘widget_width’]) … Read more

changing wp-admin/widgets.php

If you upgrade your WordPress to 3.3.1, which you absolutely should, each widget area in the admin now has an ID you can use to target via CSS, which really should be enough. See http://core.trac.wordpress.org/ticket/18334 for an example.

How to store widget fields data as an array?

You have to collect multiple fields under the same name like this … name=”collect[1]” name=”collect[2]” … and adjust your widget logic to this. Here is a very simple demo widget: <?php # -*- coding: utf-8 -*- /* Plugin Name: Store Options as array */ add_action( ‘widgets_init’, array ( ‘T5_Array_Options_Widget’, ‘register’ ) ); class T5_Array_Options_Widget extends … Read more

Add a custom walker to a menu created in a widget

If you look at implementation of WP_Nav_Menu_Widget class you will see the following code: function widget($args, $instance) { // Get menu $nav_menu = ! empty( $instance[‘nav_menu’] ) ? wp_get_nav_menu_object( $instance[‘nav_menu’] ) : false; if ( !$nav_menu ) return; $instance[‘title’] = apply_filters( ‘widget_title’, empty( $instance[‘title’] ) ? ” : $instance[‘title’], $instance, $this->id_base ); echo $args[‘before_widget’]; if … Read more

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