I have a drop-down of variants of a product. For example t-shirts:
{% for purchasable in product.variants %}
<option value="">Select</option>
<option {% if purchasable.stock <= 0 and purchasable.unlimitedStock == false %}disabled {% endif %} value="{{ purchasable.purchasableId }}">
{{ purchasable.title }} – {{ purchasable.price|currency(cart.currency) }}
</option>
{% endfor %}
As you can see I have "Select" as the default option, and it has no value. I can validate the form client side no problem, but I am curious if there is a way to designate that fields as required from the server-side? I can mark the field as required in the layout builder, but that is for the CP only I think.
If I do not choose an option, I get this error:
Craft\Exception
Not a purchasable ID
Which makes perfect sense since I am not passing it a valid purchasable element.