{% load fr_display %}
{% if not pulldown %}

<form name="shelve" action="/shelve/" method="post">
    {% csrf_token %}
    <input type="hidden" name="book" value="{{ book.id }}"></input>
    <input type="hidden" name="shelf" value="{% shelve_button_identifier book %}"></input>
    <button type="submit">{% shelve_button_text book %}</button>
</form>

{% else %}

<form name="shelve" action="/shelve/" method="post">
    {% csrf_token %}
    <input type="hidden" name="book" value="{{ book.id }}"></input>

    <select name="shelf">
        {% for shelf in request.user.shelf_set.all %}
        <option value="{{ shelf.identifier }}" {% if book in shelf.books.all %} selected {% endif %}>
             {{ shelf.name }}{% if book in shelf.books.all %} ✓ {% endif %}
        </option>
        {% endfor %}
    </select>
    <button type="submit">Shelve</button>
</form>

{% endif %}