osem/app/views/admin/difficulty_levels/index.html.haml

.row
  .col-md-12
    .page-header
      %h1 Difficulty Levels
      %p.text-muted
        Classify your conference.program.events by difficulty
.row
  .col-md-12
    %table.table.table-hover#difficulty_levels
      %thead
        %tr
          %th Title
          %th Description
          %th Color
          %th Actions
      %tbody
        - @conference.program.difficulty_levels.each do |difficulty_level|
          %tr
            %td
              = difficulty_level.title
            %td
              = difficulty_level.description
            %td
              %span.label{ style: "background-color: #{difficulty_level.color}; color: #{ contrast_color(difficulty_level.color) };" }
                = difficulty_level.color
            %td
              .btn-group{ role: 'group' }
                = link_to 'Edit', edit_admin_conference_program_difficulty_level_path(@conference.short_title, difficulty_level.id),
                method: :get, class: 'btn btn-primary'
                = link_to 'Delete', admin_conference_program_difficulty_level_path(@conference.short_title, difficulty_level.id),
                method: :delete, class: 'btn btn-danger',
                data: { confirm: "Do you really want to delete #{difficulty_level.title}? Attention: This difficulty level will be removed from all Events that have it set" }
.row
  .col-md-12.text-right
    = link_to 'Add Difficulty Level', new_admin_conference_program_difficulty_level_path(@conference.short_title), class: 'btn btn-primary'