notebook/app/views/page_collections/_form.html.erb

<%= form_with(model: page_collection, local: true) do |f| %>
  <% if page_collection.errors.any? %>
    <div id="error_explanation">
      <h2 style="font-size: 1.5em"><%= pluralize(page_collection.errors.count, "error") %> prohibited this Collection from being saved:</h2>

      <ul class="browser-default">
        <% page_collection.errors.full_messages.each do |message| %>
          <li class="red-text"><%= message %></li>
        <% end %>
      </ul>
    </div>
  <% end %>

  <div class="card">
    <div class="card-content">
      <div class="card-title">Basic information</div>

      <div class="input-field">
        <%= f.label :title %>
        <%= f.text_field :title %>
      </div>

      <div class="input-field">
        <%= f.label :subtitle %>
        <%= f.text_field :subtitle %>
      </div>

      <div class="input-field">
        <%= f.label :description %>
        <%= f.text_field :description %>
      </div>
    </div>
  </div>

  <div class="card">
    <div class="card-content">
      <div class="card-title">Header image</div>

      <div>
        <label>This image will be used as a header for the page.</label>
        <div class="file-field input-field">
          <div class="blue btn">
            <span>Upload</span>
            <%= f.file_field :header_image %>
          </div>
          <div class="file-path-wrapper">
            <input class="file-path validate" type="text" placeholder="Upload an image">
          </div>
        </div>
        <div class="help-text">
          Supported file types: .png, .jpg, .jpeg, .gif
        </div>
        <div class="help-text">
          Don't forget to save your changes below for any new upload to take effect.
        </div>
      </div>
    </div>
  </div>

  <div class="card">
    <div class="card-content">
      <div class="card-title">Acceptable pages</div>

      <p class="grey-text">
        Please check the types of pages you would like to allow in this collection. A small number of page types is recommended.
      </p>
      <br />

      <div class="row">
        <% Rails.application.config.content_types[:all].each do |content_type| %>
          <p class="col s12 m6 l4">
            <label>
              <%= f.check_box "page_types[#{content_type.name}]", checked: page_collection.page_types.include?(content_type.name) %>
              <span class="<%= content_type.color %>-text">
                <i class="material-icons left"><%= content_type.icon %></i>
                <%= content_type.name.pluralize %>
              </span>
            </label>
          </p>
        <% end %>
      </div>
    </div>
  </div>

  <div class="card">
    <div class="card-content">
      <div class="card-title">Privacy & collaboration</div>

      <div>
        <label>
          Make this collection...
          <%= f.select :privacy, [["Private", "private"], ["Public", "public"]] %>
      </div>

      <br />
      <div>
        If you choose to make this collection public, you can also use the following controls:
      </div>
      <br />

      <div>
        <label>
          <%= f.check_box :allow_submissions %>
          <span class="black-text">
            Allow other users to submit pages to this collection. You can then choose to approve or deny those submissions.
          </span>
        </label>
      </div>

      <div>
        <label>
          <%= f.check_box :auto_accept %>
          <span class="black-text">
            Automatically approve all incoming submissions.
          </span>
        </label>
      </div>
    </div>
  </div>

  <div class="actions">
    <%= f.submit nil, class: "btn #{PageCollection.color} white-text" %>
  </div>
<% end %>