Today I Learned

A Hashrocket project

Render A Template To A String

Templates in a Phoenix application ultimately get compiled to functions that can be quickly rendered with the necessary data. We can take a look at how a template will be rendered using Phoenix.View.render_to_string/3.

First, we need a template:

# user.html.eex
<h1><%= @user.first_name %></h1>
<h5><%= @user.username %> (<%= @user.email %>)</h5>

We can then render that template for the view with some user:

> user = %User{first_name: "Liz", last_name: "Lemon", username: "llemon", email: "lizlemon@nbc.com"}
%MyApp.User{...}

> Phoenix.View.Render_to_string(MyApp.UserView, "user.html", user: user)
"<h1>Liz</h1>\n<h5>llemon (lizlemon@nbc.com)</h5>\n"
Looking for help? Elixir is quickly gaining momentum for web applications that need concurrency, performance, and the ability to connect to many different clients. The developers at Hashrocket are learning along with the rest of the development community that Elixir and Phoenix are viable Rails alternatives for the right application. Contact us if you need help with your Elixir project.