app/views/records/edit_fields/_abstract.html.erb
<% if f.object.multiple? key %>
<%= f.input :abstract, as: :multi_value, input_html: { rows: '14', type: 'textarea'}, required: f.object.required?(key) %>
<% else %>
<%= f.input :abstract, as: :text, input_html: { rows: '14' }, required: f.object.required?(key) %>
<% end %>