.group_brief
  .inner
    .title= link_to group_name(group, current_user), group
    .description
      :markdown
        #{group.description}
    %ul.actions
      - if current_user.member_of?(group)
        %li
          = form_tag(group_membership_path(group, current_user.memberships.find_by_group_id(group.id)), :method => :delete) do
            = submit_tag t(".links.leave", :default => "leave")
        %li= link_to t(".links.session", :default => "Session"), new_group_supervision_path(group)
        %li= link_to t(".links.chat", :default => "Chat"), group_chat_room_path(group.chat_room)
        %li= link_to t(".links.edit", :default => "Edit"), edit_group_path(group.id)
        %li= link_to t(".links.delete", :default => "delete"), group_path(group.id), :method => :delete, :confirm => t(".confirmations.delete", :default => "You sure?")
      - else
        %li
          = form_tag(group_memberships_path(group), :method => :post) do
            = submit_tag t(".links.join", :default => "join")

.group_brief
  .inner
    .title= link_to group_name(group, current_user), group
    .description
      :markdown
        #{group.description}
    %ul.actions
      - if current_user.member_of?(group)
        %li
          = form_tag(group_membership_path(group, current_user.memberships.find_by_group_id(group.id)), :method => :delete) do
            = submit_tag t(".links.leave", :default => "leave")
        %li= link_to t(".links.session", :default => "Session"), new_group_supervision_path(group)
        %li= link_to t(".links.chat", :default => "Chat"), group_chat_room_path(group)
        %li= link_to t(".links.edit", :default => "Edit"), edit_group_path(group.id)
        %li= link_to t(".links.delete", :default => "delete"), group_path(group.id), :method => :delete, :confirm => t(".confirmations.delete", :default => "You sure?")
      - else
        %li
          = form_tag(group_memberships_path(group), :method => :post) do
            = submit_tag t(".links.join", :default => "join")

Fix incorrect link for group's chat room
Fix incorrect link for group's chat room
