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列中的不同类别下。如何获取搜索页面的quire代码？
答案 0 :(得分：0)
我建议您使用此解决方案进行类别搜索。
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');
}