{% extends 'base.html' %}

{% block title %}Editing books for {{ author.name }}{% endblock %}

{% block content %}
  <form action="" method="post" enctype="multipart/form-data">

    {% for hidden_field in form.hidden_fields %}
      {{ hidden_field.errors }}
      {{ hidden_field }}
    {% endfor %}

    {% csrf_token %}

    {{ form.management_form }}
    {{ form.non_form_errors }}

    <h3>Update Collection</h3>
    {% for book_form in form.forms %}
      <hr>
      <h5>
        {% if book_form.instance.id %}
          Book: {{ book_form.instance.title|title }}
        {% else %}
          {% if form.forms|length > 1 %}
            Add another book
          {% else %}
            Add a book
          {% endif %}
        {% endif %}
      </h5>
      {% for hidden_field in book_form.hidden_fields %}
        {{ hidden_field.errors }}
      {% endfor %}
      <table>
        {{ book_form.as_table }}
      </table>
    {% endfor %}
    <hr>
    <p>
      <button type="submit" value="Update collection" class="btn btn-primary w-100 mb-3">Update Collection</button>
      <a href="{{ author.get_absolute_url  }}" role="button" class="btn btn-secondary w-100">Cancel</a>
    </p>
  </form>

{% endblock content %}