Teste de Posts com opção de favoritar de Leo Marzeuski

index.php

@@ -0,0 +1,107 @@
+  <?php
+  /*
+  Plugin Name: Favoritador de Posts
+  Description: Permite aos usuários logados favoritar posts.
+  Version: 1.0
+  Author: Leonardo Marzeuski
+  Author URI: github/leomarzeuski
+  */
+
+  if ( ! defined( 'ABSPATH' ) ) {
+      exit; 
+  }
+  register_activation_hook(__FILE__, 'create_favorite_posts_table');
+
+  function create_favorite_posts_table() {
+      global $wpdb;
+
+      $charset_collate = $wpdb->get_charset_collate();
+      $table_name = $wpdb->prefix . 'favorite_posts';
+
+      $sql = "CREATE TABLE $table_name (
+          id mediumint(9) NOT NULL AUTO_INCREMENT,
+          user_id mediumint(9) NOT NULL,
+          post_id mediumint(9) NOT NULL,
+          PRIMARY KEY  (id)
+      ) $charset_collate;";
+
+      require_once( ABSPATH . 'wp-admin/includes/upgrade.php' );
+      dbDelta( $sql );
+  }
+  add_action( 'rest_api_init', function () {
+    register_rest_route( 'favorites/v1', '/posts/(?P<id>\d+)', array(
+      'methods' => 'POST',
+      'callback' => 'favorite_post',
+    ) );
+
+    register_rest_route( 'favorites/v1', '/posts/(?P<id>\d+)', array(
+      'methods' => 'DELETE',
+      'callback' => 'unfavorite_post',
+    ) );
+  } );
+
+  function favorite_post( $data ) {
+    global $wpdb;
+
+    if ( !is_user_logged_in() ) {
+      return new WP_Error( 'not_logged_in', 'Você precisa estar logado para favoritar um post', array( 'status' => 401 ) );
+    }
+
+
+    $table_name = $wpdb->prefix . 'favoritos';
+
+    $result = $wpdb->insert( $table_name, array( 'user_id' => get_current_user_id(), 'post_id' => $data['id'] ) );
+
+
+    if ( $result ) {
+      return array( 'success' => true );
+    } else {
+      return new WP_Error( 'database_error', 'Não foi possível favoritar o post', array( 'status' => 500 ) );
+    }
+  }
+
+  function unfavorite_post( $data ) {
+    global $wpdb;
+
+
+    if ( !is_user_logged_in() ) {
+      return new WP_Error( 'not_logged_in', 'Você precisa estar logado para desfavoritar um post', array( 'status' => 401 ) );
+    }
+
+
+    $table_name = $wpdb->prefix . 'favoritos';
+    $result = $wpdb->delete( $table_name, array( 'user_id' => get_current_user_id(), 'post_id' => $data['id'] ) );
+
+
+    if ( $result ) {
+      return array( 'success' => true );
+    } else {
+      return new WP_Error( 'database_error', 'Não foi possível desfavoritar o post', array( 'status' => 500 ) );
+    }
+  }
+
+  add_filter( 'the_content', 'add_favorite_button_to_content' );
+
+  function add_favorite_button_to_content( $content ) {
+      if ( is_singular( 'post' ) ) {
+          $post_id = get_the_ID();
+
+
+          $content .= '<button class="favorite-button" data-post-id="' . $post_id . '">Favoritar</button>';
+          $content .= '<button class="unfavorite-button" data-post-id="' . $post_id . '">Desfavoritar</button>';
+      }
+
+      return $content;
+  }
+
+  add_action( 'wp_enqueue_scripts', 'add_favorite_button_script' );
+
+  function add_favorite_button_script() {
+      wp_enqueue_script( 'favorite-button-script', plugins_url( 'meu-script.js', __FILE__ ), array( 'jquery' ), '1.0', true );
+
+
+      wp_localize_script( 'favorite-button-script', 'FavoriteButton', array(
+          'root' => esc_url_raw( rest_url() ),
+          'nonce' => wp_create_nonce( 'wp_rest' ),
+      ) );
+  }

meu-script.js

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+jQuery(document).ready(function ($) {
+    $('.favorite-button').on('click', function () {
+        var postId = $(this).data('post-id');
+
+        $.ajax({
+            url: FavoriteButton.root + 'favorites/v1/posts/' + postId,
+            method: 'POST',
+            beforeSend: function (xhr) {
+                xhr.setRequestHeader('X-WP-Nonce', FavoriteButton.nonce);
+            },
+            success: function (response) {
+                alert('Post favoritado com sucesso!');
+            },
+            error: function (response) {
+                alert('Erro ao favoritar o post.');
+            }
+        });
+    });
+
+    $('.unfavorite-button').on('click', function () {
+        var postId = $(this).data('post-id');
+
+        $.ajax({
+            url: FavoriteButton.root + 'favorites/v1/posts/' + postId,
+            method: 'DELETE',
+            beforeSend: function (xhr) {
+                xhr.setRequestHeader('X-WP-Nonce', FavoriteButton.nonce);
+            },
+            success: function (response) {
+                alert('Post desfavoritado com sucesso!');
+            },
+            error: function (response) {
+                alert('Erro ao desfavoritar o post.');
+            }
+        });
+    });
+});
+