Rails 3: how to render text file in-line?

All.

A Rails n00b here...

I'm writing an application that reports the status of a transaction. Some of the content in the rendered HTML comes from instance variables initialized in the controller, while other content 开发者_运维技巧comes from text files (e.g., log files) that I want to render in the HTML using <pre> tags.

What is the "Rails Way" to do this?

Thank you for your time...

<pre>
    <%= render :file => '/tmp/test.log' %>
</pre>

Here you go: http://edgeguides.rubyonrails.org/layouts_and_rendering.html

In some cases (when the file is not small and loading it is connected with a delay), I prefer to load the page content and then to use jQuery ajax request to load the file content.

For example, let's say I have a model with file path attribute. In the view layout I am doing something like this:

<pre data-source=" <%= (@file.path) %>"></pre>

Then in the corresponding js file I am loading the context like this:

$(document).ready ->
  $.ajax(
    url: $("pre").data("source")
    context: document.body
  ).done (response) ->
    $("pre").html response
    return
  return

Of course you can check the jQuery ajax documentation for more options. For example, you can render the pre tag with loading like this:

<pre data-source=" <%= (@file.path) %>"><div class="loading"></pre>

or use other jQuery animations as well.