silvershop – User customisable OrderItem field

AddProductFormExtension.php

<?php

/**
 * Extension to add custom field to AddProductForm and VariationForm
 */
class AddProductFormExtension extends Extension
{
    public function updateAddProductForm()
    {
        // Add a new Textfield to the form-fields
        $this->owner->Fields()->add(TextField::create('Inscription'));
        
        // tell the form that there's extra savable data that should be put into the OrderItem 
        $this->owner->setSaveableFields([
            'Inscription'
        ]);
    }
}

config.yml

Product_OrderItem:
  required_fields: 
    - Inscription # This tells the cart, that this field is also needed to determine uniqueness of an OrderItem
  extensions:
    - InscriptionExtension # Add the extension

AddProductForm:
  extensions:
    - AddProductFormExtension

InscriptionExtension.php

<?php

/**
 * Extension meant to be applied to Product_OrderItem
 */
class InscriptionExtension extends DataExtension
{
    // Add a custom field
    private static $db = [
        'Inscription' => 'Varchar(255)'
    ];

    // Optional update title hook that will just add the Inscription text to the title.
    public function updateTableTitle(&$title) {
        if ($this->owner->Inscription) {
            $title = "$title, with Inscription: " . $this->owner->Inscription;
        }
    }
}

Life saver :) cheers