How to render html from ERB object within a controller? - ruby-on-rails

Question

I'm trying to render HTML from an ERB object within a controller (the ERB object is stored in the DB), but with no success.
I would like to do something like this:
First, I created a Func instance:
Func.Create(text: "<% #users.each do |user| %>
<td><%= user.id %></td>
<td><%= link_to user.username, user_path(user) %></td>")
Then, in the controlller:
class MainController < ApplicationController
def foo
#users = User.all
render :html => bar(binding)
end
def bar(controller_binding)
html = Func.find(1)
template = ERB.new(html.text)
template.result(controller_binding)
end
end
But all I get are errors, like this:
"Missing template main/resource_name, application/resource_name with
{:locale=>[:en], :formats=>[:html], :handlers=>[:erb, :builder, :raw, :ruby,
:jbuilder, :coffee]}. Searched in: * "c:/Users/david/sample/app/views""
and
"(erb):3: syntax error, unexpected $end, expecting keyword_end ...
ut.force_encoding(__ENCODING__) ... ^"

Answer 1

Replace
Func.Create(text: "<% #users.each do |user| %>
<td><%= user.id %></td>
<td><%= link_to user.username, user_path(user) %></td>")
with
Func.Create(text: "<% if #users.nil? %>
<p> There are no users in database </p>
<% else %>
<% #users.each do |user| %>
<td><%= user.id %></td>
<td><%= link_to user.username, user_path(user) %></td><% end %> <% end %>")
<% end %> end of block was missing.
Also, replace render :html => bar(binding) with render :inline => bar(binding)
You could also shorten your code as below,
def foo
#users = User.all
html = Func.find(1)
render :inline => html.text
end

Answer 2

You shouldn't doing that in the controller. Not sure what you're trying to accomplish but it looks like a helper may be more appropriate.