我想搜索任何单词并将匹配的结果作为类别明智地显示在 column 中的不同类别下。如何获取搜索页面的查询代码？
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1 回答
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我建议您将此解决方案用于类别搜索。
class Category_Wise_Search_Widget extends WP_Widget {
/**
* Register widget with WordPress.
*/
public function __construct() {
parent::__construct(
'category_wise_search', // Base ID
'Category Wise Search', // Name
array( 'classname' => 'widget_search','description' => __( 'A search form for your site with category', 'text_domain' ), ) // Args
);
}
/**
* Front-end display of widget.
*
* @see WP_Widget::widget()
*
* @param array $args Widget arguments.
* @param array $instance Saved values from database.
*/
public function widget( $args, $instance ) {
extract( $args );
$title = apply_filters( 'widget_title', $instance['title'] );
$default_select_text = strip_tags($instance['default_select_text']);
if ( empty( $instance['default_select_text']))
$default_select_text = 'Any Category';
$show_count = ! empty( $instance['count'] ) ? '1' : '0';
$show_hierarchy = ! empty( $instance['show_hierarchy'] ) ? '1' : '0';
$default_cat = isset( $instance['default_cat'] ) ? absint( $instance['default_cat'] ) : 0;
$exclude = isset($instance['exclude'])?esc_attr($instance['exclude']):'';
$exclude_t = isset($instance['exclude_t'])?esc_attr($instance['exclude_t']):'';
if(isset($_GET['cat']))
$default_cat =absint($_GET['cat']);
$cat_args = array('selected'=>$default_cat,'show_count' => $show_count, 'hierarchical' => $show_hierarchy,'show_option_all'=>$default_select_text,'echo'=>0,'id'=>'searchform_cat','exclude'=>$exclude,'exclude_tree'=>$exclude_t,'orderby'=>'name','order' => 'asc');
?>
<?php echo $before_widget; ?>
<?php if ( $title ) echo $before_title . $title . $after_title; ?>
<?php
$form= '<form role="search" method="get" id="searchform" action="' . esc_url( home_url( '/' ) ) . '" >
<div><label class="screen-reader-text" for="s">' . __('Search for:') . '</label>
<input type="text" value="' . get_search_query() . '" name="s" id="s" />
'.wp_dropdown_categories(apply_filters('widget_categories_dropdown_args', $cat_args)).'
<input type="submit" id="searchsubmit" value="'. esc_attr__('Search') .'" />
</div>
</form>';
echo apply_filters('get_search_form', $form);
?>
<?php echo $after_widget; ?>
<?php
// Reset the global $the_post as this query will have stomped on it
}
/**
* Sanitize widget form values as they are saved.
*
* @see WP_Widget::update()
*
* @param array $new_instance Values just sent to be saved.
* @param array $old_instance Previously saved values from database.
*
* @return array Updated safe values to be saved.
*/
public function update( $new_instance, $old_instance ) {
$instance = array();
$instance['title'] = strip_tags( $new_instance['title'] );
$instance['default_select_text'] = strip_tags( $new_instance['default_select_text'] );
if($instance['default_select_text']=='')
$instance['default_select_text'] = 'Any Category';
$instance['default_cat'] = ($new_instance['default_cat']);
$instance['count'] = !empty($new_instance['count']) ? 1 : 0;
$instance['show_hierarchy'] = !empty($new_instance['show_hierarchy']) ? 1 : 0;
$instance['exclude'] = strip_tags($new_instance['exclude']);
$instance['exclude_t'] = strip_tags($new_instance['exclude_t']);
return $instance;
}
/**
* Back-end widget form.
*
* @see WP_Widget::form()
*
* @param array $instance Previously saved values from database.
*/
public function form( $instance ) {
$title = $instance['title'];
if ( isset( $instance[ 'default_select_text' ] ) ) {
$default_select_text = $instance[ 'default_select_text' ];
}
else {
$default_select_text = __( 'Any Category', 'text_domain' );
}
$count = isset($instance['count']) ? (bool) $instance['count'] :false;
$show_hierarchy = isset( $instance['show_hierarchy'] ) ? (bool) $instance['show_hierarchy'] : true;
$default_cat = isset($instance['default_cat'] ) ? absint($instance['default_cat']) : 0;
$exclude = isset($instance['exclude'] ) ? strip_tags($instance['exclude']) : '';
$exclude_t = isset($instance['exclude_t'] ) ? strip_tags($instance['exclude_t']) : '';
?>
<p>
<label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?></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 esc_attr( $title ); ?>" />
</p>
<p>
<label for="<?php echo $this->get_field_id( 'default_select_text' ); ?>"><?php _e( 'Default select box text:' ); ?></label>
<input class="widefat" id="<?php echo $this->get_field_id( 'default_select_text' ); ?>" name="<?php echo $this->get_field_name( 'default_select_text' ); ?>" type="text" value="<?php echo esc_attr( $default_select_text); ?>" />
</p>
<p><label for="<?php echo $this->get_field_id('exclude'); ?>"><?php _e( 'Exclude Categories :' ); ?></label>
<input class="widefat" id="<?php echo $this->get_field_id('exclude'); ?>" name="<?php echo $this->get_field_name('exclude'); ?>" type="text" value="<?php echo $exclude; ?>" />
<br>Enter a comma seperated category ID.<br>ex : <code>2,3</code> (This widget will display all of your categories except these categories).
</p>
<p><label for="<?php echo $this->get_field_id('exclude_t'); ?>"><?php _e( 'Exclude Categories With Childs :' ); ?></label>
<input class="widefat" id="<?php echo $this->get_field_id('exclude_t'); ?>" name="<?php echo $this->get_field_name('exclude_t'); ?>" type="text" value="<?php echo $exclude_t; ?>" />
<br>Enter a comma seperated category ID.<br>ex : <code>1,4</code> (This widget will display all of your categories except these categories and its childs).
</p>
<p>
<label for="<?php echo $this->get_field_id( 'default_cat' ); ?>"><?php _e( 'Default select category :' ); ?></label>
<?php $cat_arg = array( 'hierarchical' => 1,'selected'=>$default_cat,'show_option_all'=>($default_select_text!='')?esc_attr( $default_select_text):esc_attr( $default_select_text),'echo'=>0,'id'=>$this->get_field_id( 'default_cat' ),'name'=>$this->get_field_name( 'default_cat' ),'exclude'=>$exclude,'class'=>'widefat');
echo wp_dropdown_categories($cat_arg);?>
</p>
<p>
<input class="checkbox" type="checkbox" <?php checked( $show_hierarchy ); ?> id="<?php echo $this->get_field_id( 'show_hierarchy' ); ?>" name="<?php echo $this->get_field_name( 'show_hierarchy' ); ?>" />
<label for="<?php echo $this->get_field_id( 'show_hierarchy' ); ?>"><?php _e( 'Show hierarchy' ); ?></label><br />
<input type="checkbox" class="checkbox" id="<?php echo $this->get_field_id('count'); ?>" name="<?php echo $this->get_field_name('count'); ?>"<?php checked( $count ); ?> />
<label for="<?php echo $this->get_field_id('count'); ?>"><?php _e( 'Show post counts' ); ?></label><br />
</p>
<?php
}
} // class Category_Wise_Search
// register Category_Wise_Search_Widget widget
add_action( 'widgets_init', create_function( '', 'register_widget( "Category_Wise_Search_Widget" );' ) );
register_deactivation_hook(__FILE__, 'shambhu_plugin_deactivate');
function shambhu_plugin_deactivate ()
{
unregister_widget('Category_Wise_Search_Widget');
}
于 2017-07-25T12:31:48.920 回答