app/views/manager_profiles/manage_staffs.html.erb
<div class="row">
<div class="dashboard-search">
<h5 class="col 12"><i class="fa fa-cogs fa-lg" aria-hidden="true"></i> Manage Staff <small>(<%= @event.title%>)</small></h5>
</div>
</div>
<div class="wrapper">
<div class="staff">
<ul class="collection with-header">
<% @event.event_staffs.each do |staff| %>
<%= render "event_staffs", staff: staff %>
<% end %>
</ul>
</div>
<section id="content" >
<%= form_tag do |f| %>
<div class="col s12">
<div class="container">
<div class="row">
<div class="input-field col s3">
<%= select_tag(:role, options_for_select(@roles))%>
</div>
<div class="input-field col offset-s1 s5">
<input type="text" id = "ent_staff_email" class= "add_staff_field" placeholder="Enter staff email"/>
<input type="hidden" id = "staff_id" name = "user_id" />
</div>
<div class="input-field col s3">
<%= button_tag "Submit", id: "save_staff",
class: "btn waves-effect waves-light home_button center z-depth-0"%>
</div>
</div>
</div>
</div>
<% end %>
</section>
</div>