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8230208
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2011-11-22T16:32:16.260
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2011-11-22T16:32:16.260
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302824
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2619823
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Recently I wanted to take a rake task defined like Horace Loeb mentioned and translate it into a self contained background job, but it didn't easily translate. Here is my implementation for Rails 2.3.x because the <a href="http://jguimont.com/post/5582583230/how-to-render-a-full-page-template-in-a-rake-task-with" rel="nofollow">Rails 3 implementation</a> I found wouldn't work. <pre><code># Public: Template to render views outside the context of a controller. # # Useful for rendering views in rake tasks or background jobs when a # controller is unavailable. # # Examples # # template = OfflineTemplate.new(:users) # template.render("users/index", :layout => false, :locals => { :users => users }) # # template = OfflineTemplate.new(ProjectsHelper, PermissionsHelper) # template.render("projects/recent", :projects => recent_projects) # class OfflineTemplate include ActionController::UrlWriter include ActionController::Helpers::ClassMethods # Public: Returns the ActionView::Base internal view. attr_reader :view # Public: Convenience method to delegate :render, :to => :view # Public: Initialize an offline template for the current Rails environment. # # helpers - The Rails helpers to include (listed as symbols or modules). def initialize(*helpers) helper(helpers + [ApplicationHelper]) @view = ActionView::Base.new(Rails.configuration.view_path, {}, self) @view.class.send(:include, master_helper_module) end private # Internal: Required to use ActionConroller::Helpers. # # Returns a Module to collect helper methods. def master_helper_module @master_helper_module ||= Module.new end end </code></pre> This is available as a gist: <a href="https://gist.github.com/1386052" rel="nofollow">https://gist.github.com/1386052</a>. Then you can use the class above to create an OfflineTemplate to render your views in a rake task: <pre><code>task :recent_projects => :environment do template = OfflineTemplate.new(ProjectsHelper, PermissionsHelper) puts template.render("projects/recent", :projects => recent_projects) end </code></pre>
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1. POrender_to_string from a rake task
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1. USCharles Maresh
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