WordPress Review Library

Installation
How to use it
Common questions
1. Should I use this library on Pro plugins?
Testing
Copyright

The PublishPress WordPress Reviews is a library for displaying a banner to users asking for a five-star review.

Repository: https://github.com/publishpress/wordpress-reviews

Installation

We do recommend using composer for adding this library as a requirement:

$ composer require publishpress/wordpress-reviews

How to use it

If your plugin does not load the composer’s autoloader yet, you need to add the following code:

<?php

require_once 'vendor/autoload.php';

Only free plugins should initialize this library.

It can be instantiated and initialized in the method that loads the main WordPress hooks.

When instantiating this library, you have to pass three params:

the plugin slug (the same one used in the URL of the WordPress repository)
the plugin’s name
the URL for the logo (optional)

It by default displays the banner when the following conditional is true:

is_admin() && current_user_can('edit_posts')

But you can specify custom criteria to display the banner hooking into the filter <plugin_slug>_wp_reviews_allow_display_notice.

<?php

use PublishPress\WordPressReviews\ReviewsController;

class MyPlugin
{
    /**
    * @var  ReviewsController
    */
    private $reviewController;

    public function __construct()
    {
        $this->reviewController = new ReviewsController(
            'my-plugin',
            'My Plugin',
            MY_PLUGIN_URL . '/assets/img/logo.png'
        );
    }

    public function init()
    {
        // .......
        add_filter('my-plugin_wp_reviews_allow_display_notice', [$this, 'shouldDisplayBanner']);

        $this->reviewController->init();
    }

    public function shouldDisplayBanner($shouldDisplay)
    {
        global $pagenow;

        if (! is_admin() || ! current_user_can('edit_posts')) {
            return false;
        }

        if ($pagenow === 'admin.php' && isset($_GET['page'])) {
            if ($_GET['page'] === 'pp-page1') {
                return true;
            }

            if ($_GET['page'] === 'pp-page2') {
                return true;
            }
        }

        if ($pagenow === 'edit.php' && isset($_GET['post_type'])) {
            if ($_GET['post_type'] === 'pp_custom_post_type') {
                return true;
            }
        }

        return false;
    }

    // .......
}

In case the Pro plugin has additional pages where you want to display the banner, feel free to use the same filter as in the free plugin but with a higher priority. You can choose to override the conditions used in the Free plugin or to append more conditions, for different pages.

add_filter('my-plugin_wp_reviews_allow_display_notice', [$this, 'shouldDisplayBanner'], 20);

 /**
 * @param $shouldDisplay
 * @return bool|null
 */
public function shouldDisplayBanner($shouldDisplay)
{
    global $pagenow;

    if ($shouldDisplay) {
        return true;
    }

    if ($pagenow === 'edit.php' && isset($_GET['post_type'])) {
        if ($_GET['post_type'] === 'custom-posttype') {
            return true;
        }
    }

    return $shouldDisplay;
}

Backward compatibility with older versions

By default, the library will use the plugin’s slug as a prefix for the actions, metadata, and options:

[
    'action_ajax_handler' => $this->pluginSlug . '_action',
    'option_installed_on' => $this->pluginSlug . '_wp_reviews_installed_on',
    'nonce_action' => $this->pluginSlug . '_wp_reviews_action',
    'user_meta_dismissed_triggers' => '_' . $this->pluginSlug . '_wp_reviews_dismissed_triggers',
    'user_meta_last_dismissed' => '_' . $this->pluginSlug . '_wp_reviews_last_dismissed',
    'user_meta_already_did' => '_' . $this->pluginSlug . '_wp_reviews_already_did',
    'filter_triggers' => $this->pluginSlug . '_wp_reviews_triggers',
]

If you already use the original library in your plugin and want to keep compatibility with current sites data, you can customize the hooks and keys for the data stored in the DB using the filter <plugin_slug>_wp_reviews_meta_map:

<?php

add_filter('my-plugin_wp_reviews_meta_map', 'my_plugin_wp_reviews_meta_map');

function my_plugin_wp_reviews_meta_map($metaMap)
{
    // You can override all the array, or specific keys.
    $metaMap = [
        'action_ajax_handler' => 'legacy_slug_ajax_action',
        'option_installed_on' => 'legacy_slug_wp_reviews_installed_on',
        'nonce_action' => 'legacy_slug_wp_reviews_action',
        'user_meta_dismissed_triggers' => '_legacy_slug_wp_reviews_dismissed_triggers',
        'user_meta_last_dismissed' => '_legacy_slug_wp_reviews_last_dismissed',
        'user_meta_already_did' => '_legacy_slug_wp_reviews_already_did',
        'filter_triggers' => 'legacy_slug_wp_reviews_triggers',
    ];

    return $metaMap;
}

Common questions

Should I use this library on Pro plugins?

Pro plugins that embed the free plugin code should not instantiate or initialize this library otherwise, users will probably see duplicated admin notices or will be asked for a review twice.

Keeping the library activated only by the free plugin allows both versions, free and pro, to share the same options and metadata stored in the database, avoiding duplicated banners or review requests.

Please, only initialize this library in the Free plugin and do not disable or block it in the Pro version. We want to keep it enabled for both free and pro users.

Testing

You can test the banner in the WordPress admin by changing the option <plugin-slug>_wp_reviews_installed_on in the options table. Set it for older data to make sure the time difference is bigger than the selected trigger

Copyright

Based on the library created by Daniel Iser.