Retire semantic_form_for

Also a buttload of form cleanups...

app/views/admin/tickets/_form.html.haml

@@ -1,18 +1,25 @@
-.row
-  .col-md-12
-    .page-header
-      %h1
-        - if @ticket.new_record?
-          New
-        = @ticket.title
-        Ticket
-.row
-  .col-md-8
-    = semantic_form_for(@ticket, url: (@ticket.new_record? ? admin_conference_tickets_path : admin_conference_ticket_path(@conference.short_title, @ticket))) do |f|
-      = f.input :title, input_html: { autofocus: true }
-      = f.input :description, input_html: { rows: 5, data: { provide: 'markdown' } }
-      = f.input :price
-      = f.input :price_currency, as: :select, class: 'form-control', collection: ['USD', 'EUR', 'GBP', 'INR', 'CNY', 'CHF'], include_blank: false
-      = f.input :registration_ticket, hint: 'A registration ticket is with which user register for the conference.'
-      %p.text-right
-        = f.action :submit, as: :button, button_html: { class: 'btn btn-primary' }
+= form_for(@ticket, url: (@ticket.new_record? ? admin_conference_tickets_path : admin_conference_ticket_path(@conference.short_title, @ticket))) do |f|
+  .form-group
+    = f.label :title
+    %abbr{title: 'This field is required'} *
+    = f.text_field :title, required: true, autofocus: true, class: 'form-control'
+  .form-group
+    = f.text_area :description, rows: 5, data: { provide: 'markdown' }, class: 'form-control'
+  .form-group
+    = f.label :price
+    = f.number_field :price, class: 'form-control'
+  - if Ticket.where(conference: @conference).empty?
+    .form-group
+      = f.label :price_currency, 'Currency'
+      = f.select :price_currency, ['USD', 'EUR', 'GBP', 'INR', 'CNY', 'CHF'], { include_blank: false }, { class: 'form-control' }
+  - else
+    = hidden_field_tag "ticket[price_currency]", f.object.conference.tickets.first.price_currency
+    %span.help-block
+      Your conference tickets are in
+      = f.object.conference.tickets.first.price_currency
+  .checkbox
+    %label
+      = f.check_box :registration_ticket
+      A registration ticket is with which user register for the conference.
+  %p.text-right
+    = f.submit nil, class: 'btn btn-primary'