Movie list with transients

form.php

function form( $instance ) {
    $title = ( empty( $instance['title'] ) ) ? '' : $instance['title'];
    $director = ( empty( $instance['director'] ) ) ? '' : $instance['director'];
    ?>

    <p>
        <label for="<?php echo $this->get_field_name( '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_name( 'director' ); ?>"><?php _e( 'Director:' ); ?></label>
        <input class="widefat" id="<?php echo $this->get_field_id( 'director' ); ?>" name="<?php echo $this->get_field_name( 'director' ); ?>" type="text" value="<?php echo esc_attr( $director ); ?>" />
    </p>

    <?php

}

get-movies-2.php

function get_movies( $director ) {
    $url = 'http://netflixroulette.net/api/api.php?director=' . rawurlencode( $director );
    $response = wp_remote_get( $url );
    $data = json_decode( wp_remote_retrieve_body( $response ), true );
    return $data;
}

get-movies-call.php

$data = $this->get_movies( $instance['director'] );

get_movies.php

function get_movies() {
    $response = wp_remote_get( 'http://netflixroulette.net/api/api.php?director=Martin%20Scorsese', $args );
    $data = json_decode( wp_remote_retrieve_body( $response ), true );
    return $data;
}

hook-update.php

// In the theme
$menu = get_transient( 'my-site-menu' );

if( empty( $menu ) ) {
  $menu = wp_nav_menu( array(
    "echo" => false
  ));
  update_transient( 'my-site-menu', $menu, YEAR_IN_SECONDS );
}

echo $menu;

// Elsewhere
add_action( 'wp_update_nav_menu', 'theme_update_menu' );
function theme_update_menu() {
  delete_transient( 'my-site-menu' );
}

my-favorite-director.php

<?php
/*
Plugin Name: My Favorite Director
Plugin URI: http://danielpataki.com
Description: A transient project that displays movies from a favorite director
Author: Daniel Pataki
Author URI: http://danielpataki.com
Version: 1.1.0
*/

include 'MY_Favorite_Director_Widget.php';

class My_Favorite_Director {

    function __construct() {
        add_action( 'widgets_init', array( $this, 'init_widget' ) );
    }

    function init_widget() {
        register_widget( 'My_Favorite_Director_Widget' );
    }


}

new My_Favorite_Director;

transient.php

function widget( $args, $instance ) {
  $data = get_transient( 'my-favorite-director' );
  if( empty( $data ) ) {
      $data = $this->get_movies();
      set_transient( 'my-favorite-director', $data, WEEK_IN_SECONDS );
  }
  
  if( empty( $data ) ) {
      return;
  }
  
  // ... rest of the function is the same
}

widget-final.php

function widget( $args, $instance ) {  
  $transient = 'mfd_' . sanitize_title_with_dashes( $instance['director'] );

  $data = get_transient( $transient );
  if( empty( $data ) ) {
      $data = $this->get_movies( $instance['director'] );
      set_transient( $transient , $data, WEEK_IN_SECONDS );
  }
  
  // ... Rest of the function unchanged
}

widget.php

<?php
class My_Favorite_Director_Widget extends WP_Widget
{

    function __construct()
    {
        $widget_details = array(
            'classname' => 'my-favorite-director-widget',
            'description' => 'Display movies from your favorite director.'
        );

        parent::__construct( 'my-favorite-director', 'My Favorite Director', $widget_details );

    }

    function form( $instance ) {
        $title = ( empty( $instance['title'] ) ) ? '' : $instance['title'];
        ?>

        <p>
            <label for="<?php echo $this->get_field_name( '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>

        <?php

    }

    function update( $new_instance, $old_instance ) {
        return $new_instance;
    }

    function widget( $args, $instance ) {

        $response = wp_remote_get( 'http://netflixroulette.net/api/api.php?director=Martin%20Scorsese', $args );
        $data = json_decode( wp_remote_retrieve_body( $response ), true );

        if( empty( $data ) ) {
            return;
        }

        echo $args['before_widget'];

    	if( !empty( $instance['title'] ) ) {
    		echo $args['before_title'] . apply_filters( 'widget_title', $instance['title'], $instance, $this->id_base ) . $args['after_title'];
    	}

        echo "<ul>";
        foreach( $data as $movie ) {
            echo "<li>" . $movie['show_title'] . "</li>";
        }
        echo "</ul>";

    	echo $args['after_widget'];


    }

}