Moved form helpers from application_helper to a real FormHelper

app/views/workshops/_form.html.haml

@@ -1,23 +1,13 @@
 = form_for @workshop, url: conference_workshops_path(@conference, @workshop) do |f|
 	.columns
-		- if @workshop.errors.any?
-			#error_explanation
-				%h2= "#{pluralize(@workshop.errors.count, "error")} prohibited this workshop from being saved:"
-				%ul
-					- @workshop.errors.full_messages.each do |msg|
-						%li= msg
-		= field f, :title, :text_field
-		= field f, :slug, :text_field
+		= f.text_field :title
+		= f.text_field :slug
 	.columns.medium-4
 		%h2=_'workshop.form.help.title', :t
 		=_'workshop.form.help', :p
 	.columns.medium-8
-		= field f, :info, :text_area
-		= field f, :workshop_stream_id, :number_field
-		= field f, :workshop_presentation_style, :number_field
-		=# field f, :min_facilitators, :number_field
-		=# field f, :location_id, :number_field
-		=# field f, :start_time, :datetime_select
-		=# field f, :end_time, :datetime_select
+		= f.text_area :info
+		= f.number_field :workshop_stream_id
+		= f.number_field :workshop_presentation_style
 	.columns
-		= actions :save
+		= f.actions :save