README

Digital Products

This plugin makes it possible to sell licenses for digital products with Craft Commerce.

Requirements

Digital Products requires Craft 5.0.0 and Craft Commerce 5.0.0 or later.

Installation

You can install this plugin from the Plugin Store or with Composer.

From the Plugin Store

Go to the Plugin Store in your project’s Control Panel and search for “Digital Products”. Then click on the “Install” button in its modal window.

With Composer

Open your terminal and run the following commands:

# go to the project directory
cd /path/to/my-project.test

# tell Composer to load the plugin
composer require craftcms/digital-products

# tell Craft to install the plugin
./craft install/plugin digital-products

Events

The beforeSaveProductType and afterSaveProductType events

Plugins can be notified immediately before or after a product type is saved so your plugin can take action if needed:

use craft\digitalproducts\events\ProductTypeEvent;
use craft\digitalproducts\services\ProductTypes;
use yii\base\Event;

// ...

Event::on(
    ProductTypes::class, 
    ProductTypes::EVENT_BEFORE_SAVE_PRODUCTTYPE, 
    function(ProductTypeEvent $e) {
        // Custom code to be executed when a product type is saved
    }
);

The beforeGenerateLicenseKey event

Plugins get a chance to provide a license key instead of relying on Digital Products to generate one.

use craft\digitalproducts\elements\License;
use craft\digitalproducts\events\GenerateKeyEvent;
use craft\digitalproducts\Plugin as DigitalProducts;
use yii\base\Event;

// ...

Event::on(
    License::class, 
    License::EVENT_GENERATE_LICENSE_KEY, 
    function(GenerateKeyEvent $e) {
        $licenseService = DigitalProducts::getInstance()->getLicenses();
        
        do {
            $licenseKey = // custom key generation logic...
        } while (!$licenseService->isLicenseKeyUnique($licenseKey));

        $e->licenseKey = $licenseKey;
    }
);

Eager loading

Both licenses and products have several eager-loadable properties.

Licenses

• product allows you to eager-load the product associated with the license.
• order allows you to eager-load the order associated with the license, if any.
• owner allows you to eager-load the Craft user that owns the license, if any.

Products

• existingLicenses eager-loads all the existing licenses for the currently logged in Craft User.

Examples

Displaying the licensed product for the currently logged in Craft User.

{% if currentUser %}
    {% set licenses = craft.digitalProducts
        .licenses
        .owner(currentUser)
        .with(['product', 'order'])
        .all()
    %}

    <div class="panel panel-default">
    <div class="panel-heading"><h3 class="panel-title">Licenses</h3></div>
    {% if licenses %}
        <table class="table">
            <thead>
                <tr>
                    <th>Licensed product</th>
                    <th>License date</th>
                    <th>Order</th>
                </tr>
            </thead>
            <tbody>
            {% for license in licenses %}
                <tr>
                    <td><a href="{{ license.product.getUrl() }}">
                        {{ license.product.title }}
                    </a></td>
                    <td>{{ license.dateCreated|date('Y-m-d H:i:s') }}</td>
                    <td>
                        {% if license.orderId %}
                            <a href="/store/order?number={{ license.order.number }}">
                                Order no. {{ license.orderId }}
                            </a>
                        {% endif %}
                    </td>
                </tr>
            {% endfor %}
            </tbody>
        </table>
    {% endif %}
{% else %}
    <p>Please log in first</p>
{% endif %}

Checking if currently logged in user is licensed to access a product.

{% set products = craft.digitalProducts
    .products
    .type('onlineCourses')
    .with(['existingLicenses'])
    .all()
%}

{% if products|length %}
    <table class="table">
        <thead>
            <tr>
                <th>Product</th>
                <th>License status</th>
            </tr>
        </thead>
        <tbody>
            {% for product in products %}
                <tr>
                    <td>{{ product.title }}</td>
                    <td>
                        {% if product.existingLicenses|length %}
                            You already own this product.
                        {% else %}
                            <a href="{{ product.getUrl() }}">Get it now!</a>
                        {% endif %}
                    </td>
                </tr>
            {% endfor %}
        </tbody>
    </table>
{% endif %}

GraphQL

Digital products may be queried with GraphQL. Please read the getting started docs to get up to speed with how Craft CMS handles GraphQL requests.

The GraphQL implementation provides two query options: digitalProducts for returning multiple products, and digitalProduct for returning a single product.

An example query and response

Query payload

query {
    digitalProducts(type: "eBooks", limit: 2) {
        title,
        sku,
        price
    }
}

The response

{
    "data": {
        "digitalProducts": [
            {
                "title": "Breaking Bad: The Recipes",
                "sku": "BB-TR",
                "price": 14.99
            },
            {
                "title": "The Clone Wars: Color The Clones",
                "sku": "TCW-CTC",
                "price": 7.95
            }
        ]
    }
}

The digitalProducts/digitalProduct query

Both the queries use the same argument set.