Last active
January 2, 2019 10:42
-
-
Save gregrickaby/bb4870cb5fe723b156e6 to your computer and use it in GitHub Desktop.
Recent Posts with Images
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <?php | |
| /* | |
| Plugin Name: Recent Posts with Images | |
| Plugin URI: http://webdevstudios.com | |
| Description: Display recent posts with images filterable by category or post type in a widget area. | |
| Version: 1.0.0 | |
| Author: WebDevStudios | |
| Author URI: http://webdevstudios.com | |
| License: GPLv2 | |
| Text Domain: textdomain | |
| */ | |
| class Recent_Posts_with_Images extends WP_Widget { | |
| /** | |
| * Contruct widget | |
| */ | |
| public function __construct() { | |
| parent::__construct( | |
| 'recent_posts_thumbnails', // Base ID | |
| __( 'Recent Posts with Thumbnails', 'textdomain' ), // Name | |
| array( 'description' => __( 'Display recent posts with thumbnails filterable by category or post type in a widget area.', 'textdomain' ) ) // Args | |
| ); | |
| add_action( 'publish_post', array( $this, 'delete_transient_on_publish' ) ); | |
| } | |
| /** | |
| * Delete transient on post publish | |
| */ | |
| public function delete_transient_on_publish() { | |
| delete_transient( $this->id ); | |
| } | |
| /** | |
| * 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 ) { | |
| // Get options | |
| extract( $args ); | |
| $title = $instance['title']; | |
| $ppp = $instance['post_count']; | |
| $show_args = $instance['which_query']; | |
| $show_img = $instance['show_img']; | |
| $img_height = $instance['img_height']; | |
| $img_width = $instance['img_width']; | |
| echo $before_widget; | |
| // Check for title | |
| if ( isset( $title ) ) { | |
| echo $before_title . sanitize_text_field( $title ) . $after_title; | |
| } | |
| // Check for transient | |
| if ( false === ( $headlines = get_transient( $this->id ) ) ) { | |
| if ( 'all' == $show_args ) { | |
| // Execute WP Query | |
| $headlines = new WP_Query( array( | |
| 'posts_per_page' => absint( $instance['post_count'] ) | |
| )); | |
| } | |
| if ( 'cat' == $show_args ) { | |
| // Execute WP Query | |
| $headlines = new WP_Query( array( | |
| 'category_name' => esc_attr( $instance['category'] ), | |
| 'posts_per_page' => absint( $instance['post_count'] ) | |
| )); | |
| } | |
| if ( 'cpt' == $show_args ) { | |
| // Execute WP Query | |
| $headlines = new WP_Query( array( | |
| 'post_type' => esc_attr( $instance['cpt'] ), | |
| 'posts_per_page' => absint( $instance['post_count'] ) | |
| )); | |
| } | |
| // Store transient and expire after 4 hours | |
| set_transient( $this->id, $headlines, 4 * HOUR_IN_SECONDS ); | |
| } | |
| echo '<ul class="headlines">'; | |
| if ( $headlines->have_posts() ) { | |
| while ( $headlines->have_posts() ) { $headlines->the_post(); | |
| // If 'display thumbnail' is enabled | |
| if ( $show_img AND $show_img == true ) { | |
| // Get post thumbnail attributes | |
| $img_attr = wp_get_attachment_image_src( get_post_thumbnail_id( absint( get_the_ID() ) ), 'post-thumbnail' ); | |
| // If no image, set a default | |
| if ( empty( $img_attr ) ) { | |
| $img_src = plugins_url( 'img/stock-image-150x150.jpg' , __FILE__ ); | |
| } else { | |
| $img_src = $img_attr[0]; | |
| } | |
| // Write html | |
| echo '<li style="height:' . absint( $img_height + 5 ) . 'px;"><a class="thumbnail-link" href="' . get_permalink() . '"><img src="' . esc_url( $img_src ) . '" height="' . absint( $img_height ) . '" width="' . absint( $img_width ) . '" style="float:left;height:' . absint( $img_height ) . 'px;margin-right:10px;width:' . absint( $img_width ) . 'px;vertical-align:middle;" alt="' . esc_html( get_the_title() ) . '" title="' . esc_html( get_the_title() ) . '"></a><a class="headline-link" href="' . esc_url( get_permalink() ) . '">' . esc_html( get_the_title() ) . '</a></li>'; | |
| } else { | |
| // If 'display thumbnail' is disabled, just write html | |
| echo '<li><a class="headline-link" href="' . esc_url( get_permalink() ) . '">' . esc_html( get_the_title() ) . '</a></li>'; | |
| } | |
| } // endwhile | |
| wp_reset_postdata(); | |
| } else { | |
| echo __( 'Sorry, no posts found.', 'textdomain' ); | |
| } | |
| echo '</ul>'; | |
| echo $after_widget; | |
| } | |
| /** | |
| * Back-end widget form with defaults | |
| * | |
| * @see WP_Widget::form() | |
| * | |
| * @param array $instance Previously saved values from database. | |
| */ | |
| public function form( $instance ) { | |
| // Set default options | |
| $instance = wp_parse_args( (array) $instance, array( | |
| 'title' => 'Recent Posts', | |
| 'which_query' => 'cat', | |
| 'category' => 'Uncategorized', | |
| 'post_count' => '5', | |
| 'show_img' => 'on', | |
| 'img_width' => '50', | |
| 'img_height' => '50', | |
| )); ?> | |
| <p><label><?php _e( 'Title:', 'textdomain' ); ?></label> | |
| <input class="widefat" name="<?php echo esc_attr( $this->get_field_name( 'title' ) ); ?>" type="text" value="<?php echo esc_attr( $instance['title'] ); ?>" /></p> | |
| <p><label for="<?php echo $this->get_field_name( 'which_query' ); ?>"><?php _e( 'Use:', 'textdomain' ); ?></label><br /> | |
| <input type="radio" id="<?php echo $this->get_field_id( 'which_query' ); ?>" name="<?php echo $this->get_field_name( 'which_query' ); ?>" <?php if( $instance['which_query'] == 'all') echo 'checked="checked"'; ?> value="all" />All Posts<br> | |
| <input type="radio" id="<?php echo $this->get_field_id( 'which_query' ); ?>" name="<?php echo $this->get_field_name( 'which_query' ); ?>" <?php if( $instance['which_query'] == 'cat') echo 'checked="checked"'; ?> value="cat" />Category<br> | |
| <input type="radio" id="<?php echo $this->get_field_id( 'which_query' ); ?>" name="<?php echo $this->get_field_name( 'which_query' ); ?>" <?php if( $instance['which_query'] == 'cpt') echo 'checked="checked"'; ?> value="cpt" />Post Type<br> | |
| <p><label for="<?php echo $this->get_field_name( 'category' ); ?>"><?php _e( 'Category:', 'textdomain' ); ?></label></p> | |
| <p><select class="widefat" name="<?php echo $this->get_field_name( 'category' ); ?>"> | |
| <?php | |
| $categories = get_categories(); ?> | |
| <option value="none">-- none --</option> | |
| <?php foreach ( $categories as $category ) { ?> | |
| <option value="<?php echo esc_attr( $category->cat_name ) ?>" <?php if ( $instance['category'] == $category->cat_name ) echo 'selected="selected"'; ?>><?php echo esc_attr( $category->cat_name ); ?></option> | |
| <?php } ?> | |
| </select></p> | |
| <p><label for="<?php echo $this->get_field_name( 'cpt' ); ?>"><?php _e( 'Post Type:', 'textdomain' ); ?></label></p> | |
| <p><select class="widefat" name="<?php echo $this->get_field_name( 'cpt' ); ?>"> | |
| <?php | |
| $args = array( 'public' => true, '_builtin' => false ); | |
| $output = 'names'; | |
| $post_types = get_post_types( $args, $output ); ?> | |
| <option value="none">-- none --</option> | |
| <?php foreach ( $post_types as $post_type ) { ?> | |
| <option value="<?php echo esc_attr( $post_type ) ?>" <?php if ( $instance['cpt'] == $post_type ) echo 'selected="selected"'; ?>><?php echo esc_attr( $post_type ); ?></option> | |
| <?php } ?> | |
| </select></p> | |
| <p><label for="<?php echo $this->get_field_name( 'post_count' ); ?>"><?php _e( 'Number of posts to display:', 'textdomain' ); ?></label> | |
| <select name="<?php echo $this->get_field_name( 'post_count' ); ?>"> | |
| <option value="1" <?php selected( $instance['post_count'], '1' ); ?>>1</option> | |
| <option value="2" <?php selected( $instance['post_count'], '2' ); ?>>2</option> | |
| <option value="3" <?php selected( $instance['post_count'], '3' ); ?>>3</option> | |
| <option value="4" <?php selected( $instance['post_count'], '4' ); ?>>4</option> | |
| <option value="5" <?php selected( $instance['post_count'], '5' ); ?>>5</option> | |
| <option value="6" <?php selected( $instance['post_count'], '6' ); ?>>6</option> | |
| </select></p> | |
| <hr class="div"> | |
| <p><label for="<?php echo esc_attr( $this->get_field_id( 'show_img' ) ); ?>"><?php _e( 'Display thumbnail: ', 'textdomain' ); ?></label> | |
| <input class="checkbox" type="checkbox" value ="1" <?php checked( '1', $show_img ); ?> id="<?php echo esc_attr( $this->get_field_id( 'show_img' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'show_img' ) ); ?>'); ?>" /></p> | |
| <p> | |
| <label for="<?php echo $this->get_field_id( 'img_width' ); ?>"><?php _e( 'Thumbnail size: ', 'textdomain' ) ?></label> | |
| <input id="<?php echo esc_attr( $this->get_field_id( 'img_width' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'img_width' ) ); ?>" type="text" size="3" value="<?php echo esc_attr( $instance['img_width'] ); ?>" style="padding: 1px; font-size: 12px; margin: 5px 0;" autocomplete="off" placeholder="width" />× | |
| <input id="<?php echo esc_attr( $this->get_field_id( 'img_height' ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( 'img_height' ) ); ?>" type="text" size="3" value="<?php echo esc_attr( $instance['img_height'] );?>" style="padding: 1px; font-size: 12px; margin: 5px 0;" autocomplete="off" placeholder="height" />px</p> | |
| <hr class="div"> | |
| <p style="margin:20px 0 0;" class="description"><?php _e( 'Use the "Widget Visibility" options below to select where this widget appears.', 'textdomain' ); ?></p> | |
| <?php | |
| } | |
| /** | |
| * Update 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 values to be saved. | |
| */ | |
| public function update( $new_instance, $old_instance ) { | |
| $instance = array(); | |
| // Sanitize options | |
| foreach ( array( 'title', 'which_query', 'category', 'cpt', 'post_count', 'show_img', 'img_width', 'img_height' ) as $key => $value ) { | |
| $instance[$value] = sanitize_text_field( $new_instance[$value] ); | |
| } | |
| // Delete transient on widget save | |
| delete_transient( $this->id ); | |
| return $instance; | |
| } | |
| } // end Recent_Posts_with_Images | |
| // Start the widget | |
| add_action( 'widgets_init', function() { register_widget( 'Recent_Posts_with_Images' ); } ); |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment