49 lines
1.5 KiB
Ruby
49 lines
1.5 KiB
Ruby
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# frozen_string_literal: true
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# Inspired by https://github.com/route/errgent/blob/master/lib/errgent/renderer.rb
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class ErrorPageRenderer
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def initialize options={}
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@codes = options.fetch :codes, [404, 500]
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@output = options.fetch :output, "public/%s.html"
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@vars = options.fetch :vars, {}
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@template = options.fetch :template, "errors/error_%s"
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@layout = options.fetch :layout, "layouts/error_page"
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end
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def render
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@codes.each do |code|
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view = build_action_view
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view.assign @vars.merge(code: code)
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path = Rails.root.join(@output % code)
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File.write path, view.render(template: @template % code, layout: @layout)
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end
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end
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def helpers(&block)
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@helpers = block
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end
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private
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def build_action_view
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paths = ::ActionController::Base.view_paths
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::ActionView::Base.new(paths).tap do |view|
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view.class_eval do
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include Rails.application.helpers
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include Rails.application.routes.url_helpers
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end
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view.assets_manifest = build_manifest(Rails.application)
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view.class_eval(&@helpers) if @helpers
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end
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end
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# Internal API from the sprocket-rails railtie, if somebody finds a way to
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# call it, please replace it. Might need to be updated on sprocket-rails
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# updates.
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def build_manifest(app)
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config = app.config
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path = File.join(config.paths['public'].first, config.assets.prefix)
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Sprockets::Manifest.new(app.assets, path, config.assets.manifest)
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end
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end
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