Custom widget remember multiple select options

  • I’m writing a custom widget for our site to display some chosen posts. In the admin part, I’ve got a multiple select box to let the admin choose multiple posts by their name. This is working fine, but when I select a few different posts and save, nothing is getting saved.

    Can anyone shed any light on this?

    Here is my code… 

    <?php
/*
Plugin Name: Hot Topics
Plugin URI: https://www.weddingideasmag.com
Description: Use this widget to choose an array of posts snippets to show
Version: 1.0)
Author: James Payne
Author URI: https://www.bluntcreative.co.uk
License: GPL2
*/

class HotTopics extends WP_Widget {

	// constructor
	function HotTopics() {
		$widget_ops = array( 'name' => 'Hot Topics','classname' => 'widget-hot-topics', 'description' => __( "Use this widget to choose an array of posts snippets to show in the sidebar." ) );
		$this->WP_Widget( 'hottopics', __('Hot Topics'), $widget_ops);
	}

	// widget form creation
	function form($instance) {
		// Check values
		if( $instance) {
			$select = esc_attr($instance['select']); // Added
		} else {
			 $select ='';
		}
		?>

		<select multiple="multiple" name="<?php echo $this->get_field_name('select'); ?>[]" id="<?php echo $this->get_field_id('select'); ?>" class="widefat" size="15" style="margin-bottom:15px;">
			<?php
			$args = array( 'offset'=> 1, 'orderby' => 'date', 'order' => 'DESC', 'posts_per_page' => 200, 'post_status' => 'publish' );

			// The Query
			query_posts( $args );

			// The Loop
			while ( have_posts() ) : the_post();

			$title = get_the_title();
			?>
				<option value="<?php echo get_the_ID();?>" class="hot-topic" <?php $select == $title ? ' selected="selected"' : '';?> style="margin-bottom:3px;">
			    	<?php echo $title;?>
			    </option>
				<?php
			endwhile;

			// Reset Query
			wp_reset_query();
			?>
		</select>

		<?php
	}

	// update widget
	function update($new_instance, $old_instance) {
	      $instance = $old_instance;
	      // Fields
	      $instance['select'] = strip_tags($new_instance['select']);
	     return $instance;
	}

	// widget display
	function widget($args, $instance) {
		/* ... */
		echo 'tetst';
	}
}

// register widget
add_action('widgets_init', create_function('', 'return register_widget("HotTopics");'));

?>
Viewing 2 replies - 1 through 2 (of 2 total)

  • Hello sir ( wedideas )

    I am sandeep ,

    Sir i am requesting you if you have solved this problem then please provide me this code sir If possible , I really baldly need this. My E-mail id is ( [email protected] )

    I am very thanking full to you.

    Thread Starter wedideas

    (@wedideas)

    Hi Sandeep, here is the working code I’m using…

    <?php
/*
Plugin Name: Hot Topics
Plugin URI: https://www.weddingideasmag.com
Description: Use this widget to choose an array of posts snippets to show
Version: 1.0)
Author: James Payne
Author URI: https://www.bluntcreative.co.uk
License: GPL2
*/

// register widget
add_action( 'widgets_init', function() {
    register_widget( 'HotTopics' );
});

class HotTopics extends WP_Widget {

///////////////////////////
// Initialise the widget //
///////////////////////////	

    function HotTopics() {
        $this->WP_Widget(
            'hottopics',
            __('Hot Topics'),
            array(
                'name' => 'Hot Topics',
                'classname' => 'widget-hot-topics',
                'description' => __( "Use this widget to choose an array of posts snippets to show in the sidebar." )
            )
        );
    }

	// The admin form for the widget

///////////////////////////
// Setup the form fields //
///////////////////////////

    function form( $instance )
    {
        if( $instance ) {
			$title = $instance['title'];
            $select = $instance['select'];
		} else {
			$title ='';
            $select ='';
		} ?>

		<p>
			<label for="<?php echo $this->get_field_id('title'); ?>"><?php _e('Widget Title:', 'wp_widget_plugin'); ?></label>
			<input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo $title; ?>" />
		</p>

	<?php

		// Populate the select list with the post titles
        $get_posts = get_posts( array(
            'offset'=> 1,
            'orderby' => 'title',
            'order' => 'ASC',
            'posts_per_page' => -1,
            'post_status' => 'publish'
        ));

		// If there are posts, populate the select
        if( $get_posts ) {

			echo '<p>There are <strong>' . count($get_posts) . '</strong> posts in the database. Choose the hot topics from the choices below&hellip;</p>';?>

			<label for="<?php echo $this->get_field_id('select'); ?>"><?php _e('Posts:', 'wp_widget_plugin'); ?></label>

			<?php
            printf (
                '<select multiple="multiple" name="%s[]" id="%s" class="widefat" size="15" style="margin-bottom:10px">',
                $this->get_field_name('select'),
                $this->get_field_id('select')
            );

			// Each individual option
            foreach( $get_posts as $post )
            {
                printf(
                    '<option value="%s" class="hot-topic" %s style="margin-bottom:3px;">%s</option>',
                    $post->ID,
                    in_array( $post->ID, $select) ? 'selected="selected"' : '',
                    $post->post_title
                );
            }

            echo '</select>';

        } else {

			// No posts were found
            echo 'No posts found :(';

		} // END: if( $get_posts ) {

    } // END: function form( $instance ) 

//////////////////////////////////////////////////////////////////
// The update function to insert the chosen values in to the db //
//////////////////////////////////////////////////////////////////

    function update( $new_instance, $old_instance )
    {
        $instance = $old_instance;
        $instance['select'] = esc_sql( $new_instance['select'] );
		$instance['title'] = esc_sql( $new_instance['title']);
        return $instance;
    }

/////////////////////////////////////////
// The front end display of the widget //
/////////////////////////////////////////

	function widget($args, $instance) {
	   extract( $args );
	   // these are the widget options
	   $title = apply_filters('widget_title', $instance['title']);
	   $text = $instance['select'];
	   echo $before_widget;
		   // Display the widget
		   echo '<div class="widget-text wp_widget_plugin_box">';

		   // Check if title is set
		   if ( $title ) {
			  echo $before_title . $title . $after_title;
		   }

		   // Check if text is set
			if( $text ) { ?>

				<div class="sidebar-posts">

					<?php query_posts(array('post_type' => 'post', 'post__in' => $text, 'orderby' => 'rand')); ?>

					<?php if (have_posts()) : while (have_posts()) : the_post(); ?>

						<div class="sidebar-posts-entry">

							<?php if ( has_post_thumbnail() ) {?>

								<a href="<?php the_permalink(); ?>"><?php the_post_thumbnail( array(75,75),array('class' => 'thumbnail'));?></a>

							<?php } ?>

							<h4><a href="<?php the_permalink(); ?>"><?php the_title(); ?></a></h4>

							<p><?php $excerpt = get_the_excerpt(); echo string_limit_words($excerpt,12).'&hellip; '; ?></p>

						</div>

						<div style="clear:both;" class="clearBoth"></div>

					<?php endwhile; endif; ?>

				</div> <?php // END: <div class="sidebar-posts">

				// Reset Query
				wp_reset_query();

			 // print_r($text);
		   }
		   echo '</div>';
	   echo $after_widget;
	}

} // END: class HotTopics

?>
Viewing 2 replies - 1 through 2 (of 2 total)
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