woocommerce/widgets/widget-best_sellers.php

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<?php
/**
* Best Sellers Widget
*
* @package WooCommerce
* @category Widgets
* @author WooThemes
*/
class WooCommerce_Widget_Best_Sellers extends WP_Widget {
/** Variables to setup the widget. */
var $woo_widget_cssclass;
var $woo_widget_description;
var $woo_widget_idbase;
var $woo_widget_name;
/** constructor */
function WooCommerce_Widget_Best_Sellers() {
/* Widget variable settings. */
$this->woo_widget_cssclass = 'widget_best_sellers';
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$this->woo_widget_description = __( 'Display a list of your best selling products on your site.', 'woocommerce' );
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$this->woo_widget_idbase = 'woocommerce_best_sellers';
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$this->woo_widget_name = __('WooCommerce Best Sellers', 'woocommerce' );
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/* Widget settings. */
$widget_ops = array( 'classname' => $this->woo_widget_cssclass, 'description' => $this->woo_widget_description );
/* Create the widget. */
$this->WP_Widget('best_sellers', $this->woo_widget_name, $widget_ops);
add_action( 'save_post', array(&$this, 'flush_widget_cache') );
add_action( 'deleted_post', array(&$this, 'flush_widget_cache') );
add_action( 'switch_theme', array(&$this, 'flush_widget_cache') );
}
/** @see WP_Widget */
function widget($args, $instance) {
global $woocommerce;
$cache = wp_cache_get('widget_best_sellers', 'widget');
if ( !is_array($cache) ) $cache = array();
if ( isset($cache[$args['widget_id']]) ) {
echo $cache[$args['widget_id']];
return;
}
ob_start();
extract($args);
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$title = apply_filters('widget_title', empty($instance['title']) ? __('Best Sellers', 'woocommerce') : $instance['title'], $instance, $this->id_base);
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if ( !$number = (int) $instance['number'] )
$number = 10;
else if ( $number < 1 )
$number = 1;
else if ( $number > 15 )
$number = 15;
$query_args = array(
'posts_per_page' => $number,
'post_status' => 'publish',
'post_type' => 'product',
'meta_key' => 'total_sales',
'orderby' => 'meta_value',
'no_found_rows' => 1,
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);
$query_args['meta_query'] = array();
if ( isset( $instance['hide_free'] ) && 1 == $instance['hide_free'] ) {
$query_args['meta_query'][] = array(
'key' => '_price',
'value' => 0,
'compare' => '>',
'type' => 'DECIMAL',
);
}
$query_args['meta_query'][] = $woocommerce->query->stock_status_meta_query();
$query_args['meta_query'][] = $woocommerce->query->visibility_meta_query();
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$r = new WP_Query($query_args);
if ($r->have_posts()) :
?>
<?php echo $before_widget; ?>
<?php if ( $title ) echo $before_title . $title . $after_title; ?>
<ul class="product_list_widget">
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<?php while ($r->have_posts()) : $r->the_post(); global $product; ?>
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<li><a href="<?php the_permalink() ?>" title="<?php echo esc_attr(get_the_title() ? get_the_title() : get_the_ID()); ?>">
<?php if (has_post_thumbnail()) the_post_thumbnail('shop_thumbnail'); else echo '<img src="'. woocommerce_placeholder_img_src() .'" alt="Placeholder" width="'.$woocommerce->get_image_size('shop_thumbnail_image_width').'" height="'.$woocommerce->get_image_size('shop_thumbnail_image_height').'" />'; ?>
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<?php if ( get_the_title() ) the_title(); else the_ID(); ?>
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</a> <?php echo $product->get_price_html(); ?></li>
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<?php endwhile; ?>
</ul>
<?php echo $after_widget; ?>
<?php
endif;
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$content = ob_get_clean();
if ( isset( $args['widget_id'] ) ) $cache[$args['widget_id']] = $content;
echo $content;
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wp_cache_set('widget_best_sellers', $cache, 'widget');
}
/** @see WP_Widget->update */
function update( $new_instance, $old_instance ) {
$instance = $old_instance;
$instance['title'] = strip_tags($new_instance['title']);
$instance['number'] = (int) $new_instance['number'];
$instance['hide_free'] = 0;
if ( isset( $new_instance['hide_free'] ) ) {
$instance['hide_free'] = 1;
}
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$this->flush_widget_cache();
$alloptions = wp_cache_get( 'alloptions', 'options' );
if ( isset($alloptions['widget_best_sellers']) ) delete_option('widget_best_sellers');
return $instance;
}
function flush_widget_cache() {
wp_cache_delete('widget_best_sellers', 'widget');
}
/** @see WP_Widget->form */
function form( $instance ) {
$title = isset($instance['title']) ? esc_attr($instance['title']) : '';
if ( !isset($instance['number']) || !$number = (int) $instance['number'] ) $number = 5;
$hide_free_checked = ( isset( $instance['hide_free'] ) && 1 == $instance['hide_free'] ) ? ' checked="checked"' : '';
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?>
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<p><label for="<?php echo $this->get_field_id('title'); ?>"><?php _e('Title:', 'woocommerce'); ?></label>
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<input class="widefat" id="<?php echo esc_attr( $this->get_field_id('title') ); ?>" name="<?php echo esc_attr( $this->get_field_name('title') ); ?>" type="text" value="<?php echo esc_attr( $title ); ?>" /></p>
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<p><label for="<?php echo $this->get_field_id('number'); ?>"><?php _e('Number of products to show:', 'woocommerce'); ?></label>
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<input id="<?php echo esc_attr( $this->get_field_id('number') ); ?>" name="<?php echo esc_attr( $this->get_field_name('number') ); ?>" type="text" value="<?php echo esc_attr( $number ); ?>" size="3" /></p>
<p><input id="<?php echo esc_attr( $this->get_field_id('hide_free') ); ?>" name="<?php echo esc_attr( $this->get_field_name('hide_free') ); ?>" type="checkbox"<?php echo $hide_free_checked; ?> />
<label for="<?php echo $this->get_field_id('hide_free'); ?>"><?php _e('Hide free products', 'woocommerce'); ?></label></p>
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<?php
}
}