Class: ActiveAdminPrism::Generators::ErrorPagesGenerator

Inherits:
Rails::Generators::Base
  • Object
show all
Defined in:
lib/generators/active_admin_prism/error_pages/error_pages_generator.rb

Overview

rails g active_admin_prism:error_pages

Copies Prism-styled public/404.html and public/500.html into this app. Unlike the rest of the theme, static exception pages (config.exceptions_app's default, ActionDispatch::PublicExceptions) are read straight off disk from Rails.public_path, completely outside the asset pipeline and Rails' view-resolution/engine-view-path mechanism — there's no way for a gem to "register" or override them the way ActiveAdminPrism::Engine registers stylesheets/ javascripts, or the way this gem's own sign-in page view shadows ActiveAdmin's. Copying them into the host app (the same way rails new scaffolds its own default public/404.html) is the only option.

Not run automatically by the install generator, unlike everything else in this theme: a host's public/404.html and public/500.html are typically already customized/committed, and silently overwriting them (or ambushing an unrelated install run with copy_file's overwrite prompt) would be surprising. This is an explicit, separate opt-in.

These are plain static HTML/CSS, not ERB — no Ruby config, no ActiveAdminPrism::Configuration flag, and no @import of prism.css (impossible for a file with no Rails request cycle behind it). Edit the copied files directly for any further changes; a future gem upgrade never touches them again once copied.

Instance Method Summary collapse

Instance Method Details

#copy_error_pages ⇒ Object 



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# File 'lib/generators/active_admin_prism/error_pages/error_pages_generator.rb', line 34

def copy_error_pages
  copy_file "404.html", "public/404.html"
  copy_file "500.html", "public/500.html"
end

#show_notes ⇒ Object 



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# File 'lib/generators/active_admin_prism/error_pages/error_pages_generator.rb', line 39

def show_notes
  say_status :note,
             "these are plain static files now living in public/ — edit them " \
             "directly for further changes, and re-run this generator " \
             "(it will prompt before overwriting) to pick up a newer version " \
             "of the gem's default templates",
             :yellow
end