213 lines
9.5 KiB
PHP
213 lines
9.5 KiB
PHP
<?php
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/**
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* 小工具：文章
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*/
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class Bing_widget_posts_list extends WP_Widget{
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//默认设置
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public $default_instance = array();
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//初始化
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function __construct(){
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parent::__construct(
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'posts_list',
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THEME_WIDGET_PREFIX . __( '文章', 'Bing' ),
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array( 'description' => __( '根据设置可以显示不同的文章', 'Bing' ) )
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);
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$this->default_instance = array(
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'title' => __( '文章', 'Bing' ),
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'orderby' => 'date',
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'descending' => true,
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'number' => 5,
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'thumbnail' => true,
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'date_limit' => 'unlimited',
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'exclude_posts' => array(),
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'exclude_tax' => array()
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);
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}
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//小工具内容
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function widget( $args, $instance ){
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if( empty( $instance ) ) $instance = $this->default_instance;
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$title = apply_filters( 'widget_title', $instance['title'], $instance, $this->id_base );
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echo $args['before_widget'];
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if( !empty( $title ) ) echo $args['before_title'] . $title . $args['after_title'];
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$query_args = array(
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'ignore_sticky_posts' => true,
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'orderby' => $instance['orderby'],
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'order' => $instance['descending'] ? 'DESC' : 'ASC',
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'posts_per_page' => $instance['number'],
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'post__not_in' => $instance['exclude_posts']
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);
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if( $query_args['orderby'] == 'views' ){
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$query_args['meta_key'] = 'views';
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$query_args['orderby'] = 'meta_value_num';
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}
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if( $instance['date_limit'] != 'unlimited' ) $query_args['date_query'] = array( 'after' => $instance['date_limit'] );
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if( !empty( $instance['exclude_tax'] ) ){
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$query_args['tax_query'] = array( 'relation' => 'AND' );
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foreach( $instance['exclude_tax'] as $tax => $term ) $query_args['tax_query'][] = array(
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'taxonomy' => $tax,
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'field' => 'id',
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'terms' => $term,
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'operator' => 'NOT IN'
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);
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}
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Bing_sidebar_posts_list( $query_args, $instance['thumbnail'] );
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echo $args['after_widget'];
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}
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//保存设置选项
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function update( $new_instance, $old_instance ){
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$instance = array();
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//标题
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$instance['title'] = strip_tags( $new_instance['title'] );
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//文章排序
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$all_orderby = array( 'date', 'comment_count', 'views', 'rand' );
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$instance['orderby'] = in_array( $new_instance['orderby'], $all_orderby ) ? $new_instance['orderby'] : 'date';
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//倒序排列
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$instance['descending'] = !empty( $new_instance['descending'] );
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//文章数量
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$instance['number'] = absint( $new_instance['number'] );
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if( $instance['number'] === 0 ) $instance['number'] = 1;
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//显示缩略图
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$instance['thumbnail'] = !empty( $new_instance['thumbnail'] );
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//日期限制
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$all_date_limit = array(
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'unlimited',
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'1 day ago',
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'3 day ago',
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'1 week ago',
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'1 month ago',
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'3 month ago',
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'6 month ago',
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'1 year ago',
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'2 year ago',
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'3 year ago'
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);
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$instance['date_limit'] = in_array( $new_instance['date_limit'], $all_date_limit ) ? $new_instance['date_limit'] : 'unlimited';
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//排除文章
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$instance['exclude_posts'] = array_map( 'absint', (array) $new_instance['exclude_posts'] );
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if( !empty( $instance['exclude_posts'] ) ) $instance['exclude_posts'] = get_posts( array(
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'post__in' => $instance['exclude_posts'],
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'nopaging' => true,
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'post_type' => 'post',
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'post_status' => array( 'publish', 'future' ),
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'fields' => 'ids',
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'update_post_meta_cache' => false,
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'update_post_term_cache' => false
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) );
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//排除分类法
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$instance['exclude_tax'] = (array) $new_instance['exclude_tax'];
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foreach( $instance['exclude_tax'] as $tax_name => $tax ){
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if( !taxonomy_exists( $tax_name ) || !is_array( $tax ) || empty( $tax ) ){
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unset( $instance['exclude_tax'][$tax_name] );
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continue;
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}
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$instance['exclude_tax'][$tax_name] = (array) $instance['exclude_tax'][$tax_name];
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foreach( $instance['exclude_tax'][$tax_name] as $key => $term_id ){
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$instance['exclude_tax'][$tax_name][$key] = absint( $term_id );
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if( !term_exists( $instance['exclude_tax'][$tax_name][$key], $tax_name ) ) unset( $instance['exclude_tax'][$tax_name][$key] );
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}
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if( empty( $instance['exclude_tax'][$tax_name] ) ) unset( $instance['exclude_tax'][$tax_name] );
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}
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return $instance;
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}
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//设置表单
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function form( $instance ){
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$instance = wp_parse_args( $instance, $this->default_instance );
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$orderby = array(
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'date' => __( '发布时间', 'Bing' ),
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'comment_count' => __( '评论数量', 'Bing' ),
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'views' => __( '浏览次数', 'Bing' ),
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'rand' => __( '随机排列', 'Bing' )
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);
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$date_limit = array(
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'unlimited' => __( '无限制', 'Bing' ),
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'1 day ago' => __( '一天之内', 'Bing' ),
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'3 day ago' => __( '三天之内', 'Bing' ),
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'1 week ago' => __( '一周之内', 'Bing' ),
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'1 month ago' => __( '一个月之内', 'Bing' ),
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'3 month ago' => __( '三个月之内', 'Bing' ),
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'6 month ago' => __( '半年之内', 'Bing' ),
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'1 year ago' => __( '一年之内', 'Bing' ),
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'2 year ago' => __( '两年之内', 'Bing' ),
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'3 year ago' => __( '三年之内', 'Bing' )
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);
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?>
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<p>
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<label for="<?php echo esc_attr( $this->get_field_id( 'title' ) ); ?>"><?php _e( '标题：', 'Bing' ); ?></label>
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<input type="text" class="widefat" id="<?php echo esc_attr( $this->get_field_id( 'title' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'title' ) ); ?>" value="<?php echo esc_attr( $instance['title'] ); ?>" />
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</p>
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<p>
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<label for="<?php echo esc_attr( $this->get_field_id( 'orderby' ) ); ?>"><?php _e( '文章排序：', 'Bing' ); ?></label>
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<select id="<?php echo esc_attr( $this->get_field_id( 'orderby' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'orderby' ) ); ?>">
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<?php foreach( $orderby as $orderby_name => $orderby_title ): ?>
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<option value="<?php echo $orderby_name; ?>"<?php selected( $instance['orderby'], $orderby_name ); ?>><?php echo $orderby_title; ?></option>
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<?php endforeach; ?>
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</select>
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</p>
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<p>
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<label for="<?php echo esc_attr( $this->get_field_id( 'descending' ) ); ?>"><?php _e( '倒序排列：', 'Bing' ); ?></label>
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<input type="checkbox" id="<?php echo esc_attr( $this->get_field_id( 'descending' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'descending' ) ); ?>" value="1"<?php checked( $instance['descending'] ); ?> />
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</p>
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<p>
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<label for="<?php echo esc_attr( $this->get_field_id( 'number' ) ); ?>"><?php _e( '文章数量：', 'Bing' ); ?></label>
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<input type="number" id="<?php echo esc_attr( $this->get_field_id( 'number' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'number' ) ); ?>" value="<?php echo $instance['number']; ?>" />
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</p>
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<p>
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<label for="<?php echo esc_attr( $this->get_field_id( 'thumbnail' ) ); ?>"><?php _e( '显示缩略图：', 'Bing' ); ?></label>
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<input type="checkbox" id="<?php echo esc_attr( $this->get_field_id( 'thumbnail' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'thumbnail' ) ); ?>" value="1"<?php checked( $instance['thumbnail'] ); ?> />
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</p>
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<p>
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<label for="<?php echo esc_attr( $this->get_field_id( 'date_limit' ) ); ?>"><?php _e( '日期限制：', 'Bing' ); ?></label>
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<select id="<?php echo esc_attr( $this->get_field_id( 'date_limit' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'date_limit' ) ); ?>">
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<?php foreach( $date_limit as $date_code => $date_title ): ?>
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<option value="<?php echo $date_code; ?>"<?php selected( $instance['date_limit'], $date_code ); ?>><?php echo $date_title; ?></option>
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<?php endforeach; ?>
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</select>
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</p>
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<p>
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<label for="<?php echo esc_attr( $this->get_field_id( 'exclude_posts' ) ); ?>"><?php _e( '排除文章：', 'Bing' ); ?></label>
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<select class="widefat" multiple="multiple" id="<?php echo esc_attr( $this->get_field_id( 'exclude_posts' ) ); ?>[]" name="<?php echo esc_attr( $this->get_field_name( 'exclude_posts' ) ); ?>[]">
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<?php foreach( get_posts( 'nopaging=1&post_status=publish,future' ) as $post ): ?>
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<option value="<?php echo esc_attr( $post->ID ); ?>"<?php if( in_array( $post->ID, $instance['exclude_posts'] ) ) echo ' selected="selected"'; ?>><?php echo get_the_title( $post ); ?></option>
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<?php endforeach; ?>
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</select>
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</p>
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<?php
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foreach( get_taxonomies( array( 'show_tagcloud' => true ), false ) as $tax_name => $tax ):
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if ( empty( $tax->labels->name ) || !in_array( 'post', $tax->object_type ) ) continue;
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$trems = get_terms( $tax_name, 'hide_empty=0' );
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if( is_wp_error( $trems ) ) continue;
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if( empty( $instance['exclude_tax'][$tax_name] ) ) $instance['exclude_tax'][$tax_name] = array();
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?>
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<p>
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<label for="<?php echo esc_attr( $this->get_field_id( 'exclude_tax' ) ) . "[$tax_name]"; ?>"><?php printf( __( '排除%s：', 'Bing' ), $tax->labels->name ); ?></label>
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<select class="widefat" multiple="multiple" id="<?php echo esc_attr( $this->get_field_id( 'exclude_tax' ) ) . "[$tax_name]"; ?>[]" name="<?php echo esc_attr( $this->get_field_name( 'exclude_tax' ) . "[$tax_name]" ); ?>[]">
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<?php foreach( $trems as $trem ): ?>
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<option value="<?php echo esc_attr( $trem->term_id ); ?>"<?php if( in_array( $trem->term_id, $instance['exclude_tax'][$tax_name] ) ) echo ' selected="selected"'; ?>><?php echo $trem->name; ?></option>
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<?php endforeach; ?>
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</select>
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</p>
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<?php endforeach; ?>
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<?php
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}
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}
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register_widget( 'Bing_widget_posts_list' );
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//End of page.
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