Including one erb file into another

rails nested layouts
erb set variable
rails render partial
rails content_for
rails render text
rails yield
erb render
ruby template engine

I'm writing a command-line tool that will ultimately output an HTML report. The tool is written in Ruby. (I am not using Rails). I'm trying to keep the logic of the application in one set of files, and the HTML templates (the .erb files) in another set.

I'm having a really annoying problem though: I can't successfully include one .erb file into another.

To be specific, I'm trying to do something like this (in pseudo-code):

<html>
<head>
  <style type='text/css'>
    [include a stylesheet here]
    [and another one here]
  </style>
</head>
<body>
  <p>The rest of my document follows...

That example snippet is itself an erb file, which is being invoked from within the application logic.

I'm doing things this way so I can keep my stylesheets out of the main template to make it easier/cleaner to maintain the application. The end product (the report), though, needs to be a single, stand-alone HTML file which has no dependencies, and thus, I want to inline those stylesheets into the document head when the report is generated.

This seems like this should be easy, but I've been banging my head against a wall (and Googling, and RTMF'ing) for the last hour, and I'm not having any luck at all.

How is this supposed to be done? Thanks.


ERB templates can be nested by evaluating the sub-template from within <%= %> of the main template.

<%= ERB.new(sub_template_content).result(binding) %>

For example:

require "erb"

class Page
  def initialize title, color
    @title = title
    @color = color
  end

  def render path
    content = File.read(File.expand_path(path))
    t = ERB.new(content)
    t.result(binding)
  end
end

page = Page.new("Home", "#CCCCCC")
puts page.render("home.html.erb")

home.html.erb:

<title><%= @title %></title>
<head>
  <style type="text/css">
<%= render "home.css.erb" %>
  </style>
</head>

home.css.erb:

body {
  background-color: <%= @color %>;
}

produces:

<title>Home</title>
<head>
  <style type="text/css">
body {
  background-color: #CCCCCC;
}
  </style>
</head>

This means that you can keep templates in files, SQL databases, or any other kind of storage that you want to use. Ruby distributions also include  Server Side Includes was first developed to allow web developers to “include” HTML documents inside other pages. Basically, a snippet that is found in one document is included into another when the page is run at the server and sent to the web browser.


I'm needing this in a Sinatra app, and I find that I can just call it the same way I called the original:

In the sinatra app, I call the index:

erb :index

Then, in the index template, I can do the same for any sub-template:

<div id="controls">
  <%= erb :controls %>

..which shows the 'controls.erb' template.

So in this case, Rails will render the app/views/books/index.html.erb file. If we want to 2.2.3 Rendering an Action's Template from Another Controller. What if you want We can demonstrate one way to handle this with a contrived example​:  Before that, we can load a JavaScript file into another JavaScript file using a script tag inside the DOM that script will be downloaded and executed immediately. Now after the invention of ES6 modules there are so many different approaches to solve this problem have been developed and discussed below.


<%= ERB.new(sub_template_content).result(binding) %>

does not work, when you are using erb cli utility, multiple _erbout variables are overriden and only last one is used.

use it like this:

<%= ERB.new(sub_template_content, eoutvar='_sub01').result(binding) %>

Calling Puppet functions from ERB templates; Example ERB template; Validating ERB templates Note: If you've used ERB in other projects, it might have had different features enabled. This page Insert the value of a single expression. Problem:- C++ Program To Copy Contents Of One File Into Another or c++ copy text file to another file or program to copy contents of one file to another in c or c++ program to copy one file to another using command line arguments or c++ copy file to another file or c++ fstream copy file or c++ copy file example or write a c++ program that copies contents of one file to another file or c++


From within my .erb file, I had to do this:

<%= ERB.new(File.read('pathToFile/myFile.erb'), nil, nil, '_sub01').result(binding) %>

The other answers in this thread assumed you had a variable with your content in it. This version retrieves the content.

How do you insert a partial into your view? How can you tell The view template at app/views/posts/index.html.erb gets inserted where the yield statement is. When you Another nice thing you can do in Rails is break apart your views into partials. This helps One example is the form for creating or editing users. Both the  Include Files. The include (or require) statement takes all the text/code/markup that exists in the specified file and copies it into the file that uses the include statement. Including files is very useful when you want to include the same PHP, HTML, or text on multiple pages of a website.


eRuby (Embedded Ruby) is a templating system that embeds Ruby into a text document. eRuby dynamically generates static files based on templates. Different types of tag markers used in ERB templates are: a number in the second parameter (max value = 4) one can make the template run in a different thread. The tool is written in Ruby. (I am not using Rails). I'm trying to keep the logic of the application in one set of files, and the HTML templates (the .erb files) in another set. I'm having a really annoying problem though: I can't successfully include one .erb file into another. To be specific, I'm trying to do something like this (in pseudo-code):


Constructs a new ERB object with the template specified in str. If trim_mode is passed a String containing one or more of the following modifiers, ERB will  Including a PHP File into Another PHP File The include() and require() statement allow you to include the code contained in a PHP file within another PHP file. Including a file produces the same result as copying the script from the file specified and pasted into the location where it is called.


The other lines tell us that a bunch of CSS and JavaScript files are compiled and than delivered. Let's start with something very simple: adding 1 and 1. In a .​html.erb file, there are two kinds of Ruby code instructions in addition to the HTML  Questions: How can I include one java file into another java file? For example: If I have 2 java file one is called Person.java and one is called Student.java. How can I include Person.java into Student.java so that I can extend the class from Person.java in Student.java Answers: Just put the two files in the