Load HTML/erb templates efficiently in Rails to optimize performance for AngularJS applications

Question

Load HTML/erb templates efficiently in Rails to optimize performance for AngularJS applications

I recently came across a discussion about eager loading HAML templates on this website. The concept of caching HTML partials to enhance performance in Angular applications caught my attention. However, I'm curious to know if there is a similar approach for erb/HTML templates without using HAML. In the code snippet provided:

$templateCache.put("<%= File.basename(f).gsub(/\.haml$/, '')  %>", <%= Haml::Engine.new(File.read(f)).render.to_json %>);
  <% end %>

It mentions using Haml::Engine.new for HAML templates, but what would be the equivalent method for erb templates? If anyone has a suggestion or solution for implementing this technique with non-HAML templates, please share your insights.

javascript ruby-on-rails ruby angularjs erb

Answer 1

Answer №1

The code snippet below demonstrates how to work with ERB templates:

<% Dir.glob(Rails.root.join('app','assets','templates', '*.erb')).each do |f| %>
  $templateCache.put("<%= File.basename(f, '.erb')  %>", <%= ERB.new(File.read(f)).result.to_json %>);
<% end %>

To further explain the steps involved, here are some key points:

To select all ERB templates, you can use the following code snippet:

Dir.glob(Rails.root.join('app', 'assets', 'templates', '*.erb'))
# => ['a.erb', 'b.erb', ...]

To extract the template name from a file name, utilize the following method:

File.basename(f, '.erb')

When it comes to rendering an ERB template, the following approach is recommended:

ERB.new(File.read(f)).result

If you need more information on the #result method, feel free to check out the official documentation.

Answer 2

The code snippet below demonstrates how to work with ERB templates:

<% Dir.glob(Rails.root.join('app','assets','templates', '*.erb')).each do |f| %>
  $templateCache.put("<%= File.basename(f, '.erb')  %>", <%= ERB.new(File.read(f)).result.to_json %>);
<% end %>

To further explain the steps involved, here are some key points:

To select all ERB templates, you can use the following code snippet:

Dir.glob(Rails.root.join('app', 'assets', 'templates', '*.erb'))
# => ['a.erb', 'b.erb', ...]

To extract the template name from a file name, utilize the following method:

File.basename(f, '.erb')

When it comes to rendering an ERB template, the following approach is recommended:

ERB.new(File.read(f)).result

If you need more information on the #result method, feel free to check out the official documentation.

Answer 3

Answer №2

When working with ERB templates, consider using the following approach:

<% Dir.glob(Rails.root.join('app','assets','templates', '*.erb')).each do |f| %>
    $templateCache.put("<%= File.basename(f).gsub(/\.erb$/, '')  %>", <%= ERB.new(File.read(f)).result.to_json %>);
<% end %>

Answer 4

When working with ERB templates, consider using the following approach:

<% Dir.glob(Rails.root.join('app','assets','templates', '*.erb')).each do |f| %>
    $templateCache.put("<%= File.basename(f).gsub(/\.erb$/, '')  %>", <%= ERB.new(File.read(f)).result.to_json %>);
<% end %>

Load HTML/erb templates efficiently in Rails to optimize performance for AngularJS applications

Answer №1

Answer №2

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