openproject/app/views/settings/_issues.rhtml

<% form_tag({:action => 'edit', :tab => 'issues'}) do %>

<div class="box tabular settings">
<p><label><%= l(:setting_cross_project_issue_relations) %></label>
<%= check_box_tag 'settings[cross_project_issue_relations]', 1, Setting.cross_project_issue_relations? %><%= hidden_field_tag 'settings[cross_project_issue_relations]', 0 %></p>

<p><label><%= l(:setting_issues_export_limit) %></label>
<%= text_field_tag 'settings[issues_export_limit]', Setting.issues_export_limit, :size => 6 %></p>
</div>

<fieldset class="box"><legend><%= l(:setting_issue_list_default_columns) %></legend>
<%= hidden_field_tag 'settings[issue_list_default_columns][]', '' %>
<p><% Query.new.available_columns.each do |column| %>
  <label><%= check_box_tag 'settings[issue_list_default_columns][]', column.name, Setting.issue_list_default_columns.include?(column.name.to_s) %>
  <%= column.caption %></label>
<% end %></p>
</fieldset>

<%= submit_tag l(:button_save) %>
<% end %>