Rails calling a controller from another model's view - ruby-on-rails-3

Question

I have a post model and an upvote model.
upvote.rb
class Upvote < ActiveRecord::Base
has_one :user
belongs_to :post
end
# == Schema Information
#
# Table name: upvotes
#
# id :integer not null, primary key
# user_id :integer
# post_id :integer
# comment :text
# created_at :datetime
# updated_at :datetime
#
Now within posts/index I want to add an upvote for the current user and the post.
Some research pointed me to write a helper
posts_helper.rb
module PostsHelper
def upvote_post(post)
#upvote = Upvote.new
#upvote.user_id = current_user.id
#upvote.post_id = post.id
if #upvote.save
flash.now[:notice] = 'Upvote was successfully created.'
end
end
end
Inside my view I want to call the helper only on clicking a link but can't seem to get link_to working properly.
<% #posts.each do |post| %>
<tr>
<td><%= link_to "upboats" upvote_post(post) %></td>
<td><%= post.name %></td>
...
I get the error syntax error, unexpected tIDENTIFIER, expecting ')' and can't seem to find any good alternatives.
What am I missing here?
UPDATED
It was a comma. facepalm
Plenty of other issues, but that was what led to the error.
<% #posts.each do |post| %>
<tr>
<td><%= link_to "upboats", upvote_post(post) %></td>
<td><%= post.name %></td>
...

Answer 1

Closing open question.
It was a comma.
UPDATED
It was a comma. facepalm
Plenty of other issues, but that was what led to the error.
<% #posts.each do |post| %>
<tr>
<td><%= link_to "upboats", upvote_post(post) %></td>
<td><%= post.name %></td>
...