timkelty / craft-linkfield

Link field for Craft 3

Link field plugin for Craft

This plugin adds a new link field type to the Craft CMS. The link field allows content editors to choose from a list of link types and offers individual input fields for each of them.

Requirements

This plugin requires Craft CMS 3.0.0-RC1 or later.

Installation

To install the plugin, follow these instructions.

1. Open your terminal and go to your Craft project:

    cd /path/to/project
   

2. Then tell Composer to load the plugin:

    composer require sebastianlenz/linkfield
   

3. In the Control Panel, go to Settings → Plugins and click the “Install” button for Link Field.

Templating

Link fields on your models will return an instance of typedlinkfield\models\Link. Rendering a link field directly within a template will return the url the field is pointing to.

<a href="{{ item.myLinkField }}">Link</a>

You can use the following accessors to get the different properties of the link:

{{ item.myLinkField.getElement() }}
{{ item.myLinkField.getTarget() }}
{{ item.myLinkField.getText() }}
{{ item.myLinkField.getUrl() }}
{{ item.myLinkField.hasElement() }}
{{ item.myLinkField.isEmpty() }}
{{ item.myLinkField.getCustomText() }}

Use the getLink utility function to render a full html link:

{{ item.myLinkField.getLink() }}

You can pass the desired content of the link as a string, e.g.

{{ entry.linkField.getLink('Imprint') }}

You may also pass an array of attributes. When doing this you can override the default attributes href and target. The special attribute text will be used as the link content.

{{ entry.linkField.getLink({
  class: 'my-link-class',
  target: '_blank',
  text: 'Imprint',
}) }}

API

You can register additional link types by listening to the EVENT_REGISTER_LINK_TYPES event of the plugin. If you just want to add another element type, you can do it like this in your module:

use craft\commerce\elements\Product;
use typedlinkfield\Plugin as LinkPlugin;
use typedlinkfield\events\LinkTypeEvent;
use typedlinkfield\models\ElementLinkType;
use yii\base\Event;

/**
 * Custom module class.
 */
class Module extends \yii\base\Module
{
  public function init() {
    parent::init();
    Event::on(
      LinkPlugin::class,
      LinkPlugin::EVENT_REGISTER_LINK_TYPES,
      function(LinkTypeEvent $event) {
        $event->linkTypes['product'] = new ElementLinkType(Product::class);
      }
    );
  }
}

Each link type must have an unique name and a definition object implementing typedlinkfield\modles\LinkTypeInterface. Take a look at the bundled link types ElementLinkType and InputLinkType to get an idea of how to write your own link type definitions.