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Refactor to Helpers

This Rails partial is almost all template escapes. Put it into a helper, and refactor each case to methods so we can build out the controls for each. (I've converted to tabs - fighting with Vimgolf's default config shouldn't be part of the challenge.)

Start file

## _controls.html.erb
<div class='controls'>
	<% if event.author == current_user -%>
		<%= link_to "Edit Activity", edit_event_path(event), :class => 'button' %>
	<% else -%>
		<% if current_user.attending? event -%>
			<%= link_to "Leave", leave_event_path(event), :class => "button neg", :method => :post %>
		<% else -%>
			<% if current_user.invited_to? event -%>
				<%= link_to "Accept Invite", join_event_path(event), :class => "button pos", :method => :post %>
			<% else -%>
				<%= link_to "I'm Going", join_event_path(event), :class => "button pos", :method => :post %>
			<% end -%>
		<% end -%>
	<% end -%>
</div>

## event_helper.rb
module EventHelper
end

End file

## _controls.html.erb
<div class='controls'>
	<%= event_controls event %>
</div>

## event_helper.rb
module EventHelper
	def event_controls(event)
		if event.author == current_user
			author_controls(event)
		elsif current_user.attending? event
			attendee_controls(event)
		elsif current_user.invited_to? event
			invitee_controls(event)
		else
			public_controls(event)
		end
	end

	def author_controls(event)
		link_to "Edit Activity", edit_event_path(event), :class => 'button'
	end

	def attendee_controls(event)
		link_to "Leave", leave_event_path(event), :class => "button neg", :method => :post
	end

	def invitee_controls(event)
		link_to "Accept Invite", join_event_path(event), :class => "button pos", :method => :post
	end

	def public_controls(event)
		link_to "I'm Going", join_event_path(event), :class => "button pos", :method => :post
	end
end

View Diff

3,15c3
< 	<% if event.author == current_user -%>
< 		<%= link_to "Edit Activity", edit_event_path(event), :class => 'button' %>
< 	<% else -%>
< 		<% if current_user.attending? event -%>
< 			<%= link_to "Leave", leave_event_path(event), :class => "button neg", :method => :post %>
< 		<% else -%>
< 			<% if current_user.invited_to? event -%>
< 				<%= link_to "Accept Invite", join_event_path(event), :class => "button pos", :method => :post %>
< 			<% else -%>
< 				<%= link_to "I'm Going", join_event_path(event), :class => "button pos", :method => :post %>
< 			<% end -%>
< 		<% end -%>
< 	<% end -%>
---
> 	<%= event_controls event %>
19a8,34
> 	def event_controls(event)
> 		if event.author == current_user
> 			author_controls(event)
> 		elsif current_user.attending? event
> 			attendee_controls(event)
> 		elsif current_user.invited_to? event
> 			invitee_controls(event)
> 		else
> 			public_controls(event)
> 		end
> 	end
> 
> 	def author_controls(event)
> 		link_to "Edit Activity", edit_event_path(event), :class => 'button'
> 	end
> 
> 	def attendee_controls(event)
> 		link_to "Leave", leave_event_path(event), :class => "button neg", :method => :post
> 	end
> 
> 	def invitee_controls(event)
> 		link_to "Accept Invite", join_event_path(event), :class => "button pos", :method => :post
> 	end
> 
> 	def public_controls(event)
> 		link_to "I'm Going", join_event_path(event), :class => "button pos", :method => :post
> 	end