plugins/volunteers/views/volunteers_plugin_myprofile/_edit_periods.html.erb
<div id='volunteers-periods' class="field">
<%= f.label :volunteers_periods, t('volunteers_plugin.views.myprofile.volunteers_periods') %>
<div class=clear></div>
<div class="periods">
<% owner.volunteers_periods.each do |period| %>
<%= f.fields_for :volunteers_periods, period do |ff| %>
<div id="period-<%=period.id%>" class="period">
<%= render 'volunteers_plugin_myprofile/period', f: ff, period: period, owner: owner %>
</div>
<% end %>
<% end %>
</div>
<div id="volunteers-periods-template" style="display: none">
<% period = VolunteersPlugin::Period.new %>
<%= f.fields_for :volunteers_periods, period, child_index: '_new_' do |ff| %>
<div id="period-new" class="period">
<%= render 'volunteers_plugin_myprofile/period', f: ff, period: period, owner: owner %>
</div>
<% end %>
</div>
<%= link_to_function t('volunteers_plugin.views.myprofile.add_period'), 'volunteers.periods.add()', class: 'action-button' %>
<%= javascript_tag do %>
volunteers.periods.load();
<% end %>
</div>