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编辑当前文件:/home/sditechnicalteam/seo.socialdigiinnovator.com/wp-content/themes/onum/inc/backend/post-like.php
<?php /* Name: WordPress Post Like System Description: A simple and efficient post like system for WordPress. Version: 0.5.2 Author: Jon Masterson Author URI: http://jonmasterson.com/ License: Copyright (C) 2015 Jon Masterson This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ /** * Register the stylesheets for the public-facing side of the site. * @since 0.5 */ add_action( 'wp_enqueue_scripts', 'sl_enqueue_scripts' ); function sl_enqueue_scripts() { wp_enqueue_style( 'simple-likes-public-css', get_template_directory_uri().'/inc/backend/css/simple-likes-public.css'); wp_enqueue_script( 'simple-likes-public-js', get_template_directory_uri() . '/inc/backend/js/simple-likes-public.js', array( 'jquery' ), '0.5', false ); wp_localize_script( 'simple-likes-public-js', 'simpleLikes', array( 'ajaxurl' => admin_url( 'admin-ajax.php' ), 'like' => __( 'Like', 'onum' ), 'unlike' => __( 'Unlike', 'onum' ) ) ); } /** * Processes like/unlike * @since 0.5 */ add_action( 'wp_ajax_nopriv_process_simple_like', 'process_simple_like' ); add_action( 'wp_ajax_process_simple_like', 'process_simple_like' ); function process_simple_like() { // Security $nonce = isset( $_REQUEST['nonce'] ) ? sanitize_text_field( $_REQUEST['nonce'] ) : 0; if ( !wp_verify_nonce( $nonce, 'simple-likes-nonce' ) ) { exit( __( 'Not permitted', 'onum' ) ); } // Test if javascript is disabled $disabled = ( isset( $_REQUEST['disabled'] ) && $_REQUEST['disabled'] == true ) ? true : false; // Test if this is a comment $is_comment = ( isset( $_REQUEST['is_comment'] ) && $_REQUEST['is_comment'] == 1 ) ? 1 : 0; // Base variables $post_id = ( isset( $_REQUEST['post_id'] ) && is_numeric( $_REQUEST['post_id'] ) ) ? $_REQUEST['post_id'] : ''; $result = array(); $post_users = NULL; $like_count = 0; // Get plugin options if ( $post_id != '' ) { $count = ( $is_comment == 1 ) ? get_comment_meta( $post_id, "_comment_like_count", true ) : get_post_meta( $post_id, "_post_like_count", true ); // like count $count = ( isset( $count ) && is_numeric( $count ) ) ? $count : 0; if ( !already_liked( $post_id, $is_comment ) ) { // Like the post if ( is_user_logged_in() ) { // user is logged in $user_id = get_current_user_id(); $post_users = post_user_likes( $user_id, $post_id, $is_comment ); if ( $is_comment == 1 ) { // Update User & Comment $user_like_count = get_user_option( "_comment_like_count", $user_id ); $user_like_count = ( isset( $user_like_count ) && is_numeric( $user_like_count ) ) ? $user_like_count : 0; update_user_option( $user_id, "_comment_like_count", ++$user_like_count ); if ( $post_users ) { update_comment_meta( $post_id, "_user_comment_liked", $post_users ); } } else { // Update User & Post $user_like_count = get_user_option( "_user_like_count", $user_id ); $user_like_count = ( isset( $user_like_count ) && is_numeric( $user_like_count ) ) ? $user_like_count : 0; update_user_option( $user_id, "_user_like_count", ++$user_like_count ); if ( $post_users ) { update_post_meta( $post_id, "_user_liked", $post_users ); } } } else { // user is anonymous $user_ip = sl_get_ip(); $post_users = post_ip_likes( $user_ip, $post_id, $is_comment ); // Update Post if ( $post_users ) { if ( $is_comment == 1 ) { update_comment_meta( $post_id, "_user_comment_IP", $post_users ); } else { update_post_meta( $post_id, "_user_IP", $post_users ); } } } $like_count = ++$count; $response['status'] = "liked"; $response['icon'] = get_liked_icon(); } else { // Unlike the post if ( is_user_logged_in() ) { // user is logged in $user_id = get_current_user_id(); $post_users = post_user_likes( $user_id, $post_id, $is_comment ); // Update User if ( $is_comment == 1 ) { $user_like_count = get_user_option( "_comment_like_count", $user_id ); $user_like_count = ( isset( $user_like_count ) && is_numeric( $user_like_count ) ) ? $user_like_count : 0; if ( $user_like_count > 0 ) { update_user_option( $user_id, "_comment_like_count", --$user_like_count ); } } else { $user_like_count = get_user_option( "_user_like_count", $user_id ); $user_like_count = ( isset( $user_like_count ) && is_numeric( $user_like_count ) ) ? $user_like_count : 0; if ( $user_like_count > 0 ) { update_user_option( $user_id, '_user_like_count', --$user_like_count ); } } // Update Post if ( $post_users ) { $uid_key = array_search( $user_id, $post_users ); unset( $post_users[$uid_key] ); if ( $is_comment == 1 ) { update_comment_meta( $post_id, "_user_comment_liked", $post_users ); } else { update_post_meta( $post_id, "_user_liked", $post_users ); } } } else { // user is anonymous $user_ip = sl_get_ip(); $post_users = post_ip_likes( $user_ip, $post_id, $is_comment ); // Update Post if ( $post_users ) { $uip_key = array_search( $user_ip, $post_users ); unset( $post_users[$uip_key] ); if ( $is_comment == 1 ) { update_comment_meta( $post_id, "_user_comment_IP", $post_users ); } else { update_post_meta( $post_id, "_user_IP", $post_users ); } } } $like_count = ( $count > 0 ) ? --$count : 0; // Prevent negative number $response['status'] = "unliked"; $response['icon'] = get_unliked_icon(); } if ( $is_comment == 1 ) { update_comment_meta( $post_id, "_comment_like_count", $like_count ); update_comment_meta( $post_id, "_comment_like_modified", date( 'Y-m-d H:i:s' ) ); } else { update_post_meta( $post_id, "_post_like_count", $like_count ); update_post_meta( $post_id, "_post_like_modified", date( 'Y-m-d H:i:s' ) ); } $response['count'] = get_like_count( $like_count ); $response['testing'] = $is_comment; if ( $disabled == true ) { if ( $is_comment == 1 ) { wp_redirect( get_permalink( get_the_ID() ) ); exit(); } else { wp_redirect( get_permalink( $post_id ) ); exit(); } } else { wp_send_json( $response ); } } } /** * Utility to test if the post is already liked * @since 0.5 */ function already_liked( $post_id, $is_comment ) { $post_users = NULL; $user_id = NULL; if ( is_user_logged_in() ) { // user is logged in $user_id = get_current_user_id(); $post_meta_users = ( $is_comment == 1 ) ? get_comment_meta( $post_id, "_user_comment_liked" ) : get_post_meta( $post_id, "_user_liked" ); if ( count( $post_meta_users ) != 0 ) { $post_users = $post_meta_users[0]; } } else { // user is anonymous $user_id = sl_get_ip(); $post_meta_users = ( $is_comment == 1 ) ? get_comment_meta( $post_id, "_user_comment_IP" ) : get_post_meta( $post_id, "_user_IP" ); if ( count( $post_meta_users ) != 0 ) { // meta exists, set up values $post_users = $post_meta_users[0]; } } if ( is_array( $post_users ) && in_array( $user_id, $post_users ) ) { return true; } else { return false; } } // already_liked() /** * Output the like button * @since 0.5 */ function get_simple_likes_button( $post_id, $is_comment = NULL ) { $is_comment = ( NULL == $is_comment ) ? 0 : 1; $output = ''; $nonce = wp_create_nonce( 'simple-likes-nonce' ); // Security if ( $is_comment == 1 ) { $post_id_class = esc_attr( ' sl-comment-button-' . $post_id ); $comment_class = esc_attr( ' sl-comment' ); $like_count = get_comment_meta( $post_id, "_comment_like_count", true ); $like_count = ( isset( $like_count ) && is_numeric( $like_count ) ) ? $like_count : 0; } else { $post_id_class = esc_attr( ' sl-button-' . $post_id ); $comment_class = esc_attr( '' ); $like_count = get_post_meta( $post_id, "_post_like_count", true ); $like_count = ( isset( $like_count ) && is_numeric( $like_count ) ) ? $like_count : 0; } $count = get_like_count( $like_count ); $icon_empty = get_unliked_icon(); $icon_full = get_liked_icon(); // Loader $loader = '<span id="sl-loader"></span>'; // Liked/Unliked Variables if ( already_liked( $post_id, $is_comment ) ) { $class = esc_attr( ' liked' ); $title = __( 'Unlike', 'onum' ); $icon = $icon_full; } else { $class = ''; $title = __( 'Like', 'onum' ); $icon = $icon_empty; } $output = '<span class="sl-wrapper"><a href="' . admin_url( 'admin-ajax.php?action=process_simple_like' . '&post_id=' . $post_id . '&nonce=' . $nonce . '&is_comment=' . $is_comment . '&disabled=true' ) . '" class="sl-button' . $post_id_class . $class . $comment_class . '" data-nonce="' . $nonce . '" data-post-id="' . $post_id . '" data-iscomment="' . $is_comment . '" title="' . $title . '">' . $icon . $count . '</a>' . $loader . '</span>'; return $output; } // get_simple_likes_button() /** * Processes shortcode to manually add the button to posts * @since 0.5 */ add_shortcode( 'otfliker', 'sl_shortcode' ); function sl_shortcode() { return get_simple_likes_button( get_the_ID(), 0 ); } // shortcode() /** * Utility retrieves post meta user likes (user id array), * then adds new user id to retrieved array * @since 0.5 */ function post_user_likes( $user_id, $post_id, $is_comment ) { $post_users = ''; $post_meta_users = ( $is_comment == 1 ) ? get_comment_meta( $post_id, "_user_comment_liked" ) : get_post_meta( $post_id, "_user_liked" ); if ( count( $post_meta_users ) != 0 ) { $post_users = $post_meta_users[0]; } if ( !is_array( $post_users ) ) { $post_users = array(); } if ( !in_array( $user_id, $post_users ) ) { $post_users['user-' . $user_id] = $user_id; } return $post_users; } // post_user_likes() /** * Utility retrieves post meta ip likes (ip array), * then adds new ip to retrieved array * @since 0.5 */ function post_ip_likes( $user_ip, $post_id, $is_comment ) { $post_users = ''; $post_meta_users = ( $is_comment == 1 ) ? get_comment_meta( $post_id, "_user_comment_IP" ) : get_post_meta( $post_id, "_user_IP" ); // Retrieve post information if ( count( $post_meta_users ) != 0 ) { $post_users = $post_meta_users[0]; } if ( !is_array( $post_users ) ) { $post_users = array(); } if ( !in_array( $user_ip, $post_users ) ) { $post_users['ip-' . $user_ip] = $user_ip; } return $post_users; } // post_ip_likes() /** * Utility to retrieve IP address * @since 0.5 */ function sl_get_ip() { if ( isset( $_SERVER['HTTP_CLIENT_IP'] ) && ! empty( $_SERVER['HTTP_CLIENT_IP'] ) ) { $ip = $_SERVER['HTTP_CLIENT_IP']; } elseif ( isset( $_SERVER['HTTP_X_FORWARDED_FOR'] ) && ! empty( $_SERVER['HTTP_X_FORWARDED_FOR'] ) ) { $ip = $_SERVER['HTTP_X_FORWARDED_FOR']; } else { $ip = ( isset( $_SERVER['REMOTE_ADDR'] ) ) ? $_SERVER['REMOTE_ADDR'] : '0.0.0.0'; } $ip = filter_var( $ip, FILTER_VALIDATE_IP ); $ip = ( $ip === false ) ? '0.0.0.0' : $ip; return $ip; } // sl_get_ip() /** * Utility returns the button icon for "like" action * @since 0.5 */ function get_liked_icon() { /* If already using Font Awesome with your theme, replace svg with: <i class="fa fa-heart"></i> */ $icon = '<span class="sl-icon"><svg role="img" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" x="0" y="0" viewBox="0 0 128 128" enable-background="new 0 0 128 128" xml:space="preserve"><path id="heart-full" d="M124 20.4C111.5-7 73.7-4.8 64 19 54.3-4.9 16.5-7 4 20.4c-14.7 32.3 19.4 63 60 107.1C104.6 83.4 138.7 52.7 124 20.4z"/>♥</svg></span>'; return $icon; } // get_liked_icon() /** * Utility returns the button icon for "unlike" action * @since 0.5 */ function get_unliked_icon() { /* If already using Font Awesome with your theme, replace svg with: <i class="fa fa-heart-o"></i> */ $icon = '<span class="sl-icon"><svg role="img" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" x="0" y="0" viewBox="0 0 128 128" enable-background="new 0 0 128 128" xml:space="preserve"><path id="heart" d="M64 127.5C17.1 79.9 3.9 62.3 1 44.4c-3.5-22 12.2-43.9 36.7-43.9 10.5 0 20 4.2 26.4 11.2 6.3-7 15.9-11.2 26.4-11.2 24.3 0 40.2 21.8 36.7 43.9C124.2 62 111.9 78.9 64 127.5zM37.6 13.4c-9.9 0-18.2 5.2-22.3 13.8C5 49.5 28.4 72 64 109.2c35.7-37.3 59-59.8 48.6-82 -4.1-8.7-12.4-13.8-22.3-13.8 -15.9 0-22.7 13-26.4 19.2C60.6 26.8 54.4 13.4 37.6 13.4z"/>♥</svg></span>'; return $icon; } // get_unliked_icon() /** * Utility function to format the button count, * appending "K" if one thousand or greater, * "M" if one million or greater, * and "B" if one billion or greater (unlikely). * $precision = how many decimal points to display (1.25K) * @since 0.5 */ function sl_format_count( $number ) { $precision = 2; if ( $number >= 1000 && $number < 1000000 ) { $formatted = number_format( $number/1000, $precision ).'K'; } else if ( $number >= 1000000 && $number < 1000000000 ) { $formatted = number_format( $number/1000000, $precision ).'M'; } else if ( $number >= 1000000000 ) { $formatted = number_format( $number/1000000000, $precision ).'B'; } else { $formatted = $number; // Number is less than 1000 } $formatted = str_replace( '.00', '', $formatted ); return $formatted; } // sl_format_count() /** * Utility retrieves count plus count options, * returns appropriate format based on options * @since 0.5 */ function get_like_count( $like_count ) { $like_text = __( 'Like', 'onum' ); $likes_text = __( 'Likes', 'onum' ); if ( is_numeric( $like_count ) && $like_count > 0 ) { $number = '<span class="sl-count">' . sl_format_count( $like_count ) . '</span><span class="sl-text">' . $likes_text . '</span>'; } else { $number = '<span class="sl-text">' . $like_text . '</span>'; } //$count = '<span class="sl-count">' . $number . '</span>'; return $number; } // get_like_count() // User Profile List add_action( 'show_user_profile', 'show_user_likes' ); add_action( 'edit_user_profile', 'show_user_likes' ); function show_user_likes( $user ) { ?> <table class="form-table"> <tr> <th><label for="user_likes"><?php _e( 'You Like:', 'onum' ); ?></label></th> <td> <?php $types = get_post_types( array( 'public' => true ) ); $args = array( 'numberposts' => -1, 'post_type' => $types, 'meta_query' => array ( array ( 'key' => '_user_liked', 'value' => $user->ID, 'compare' => 'LIKE' ) ) ); $sep = ''; $like_query = new WP_Query( $args ); if ( $like_query->have_posts() ) : ?> <p> <?php while ( $like_query->have_posts() ) : $like_query->the_post(); echo $sep; ?><a href="<?php the_permalink(); ?>" title="<?php the_title_attribute(); ?>"><?php the_title(); ?></a> <?php $sep = ' · '; endwhile; ?> </p> <?php else : ?> <p><?php _e( 'You do not like anything yet.', 'onum' ); ?></p> <?php endif; wp_reset_postdata(); ?> </td> </tr> </table> <?php } // show_user_likes()