6873fc8026
Upgraded to Rails 2.0.2, except that we maintain vendor/rails/actionpack/lib/action_controller/routing.rb from Rail 1.2.6 (at least for now), so that Routes don't change. We still get to enjoy Rails's many new features. Also fixed a bug in Chunk-handling: disable WikiWord processing in tags (for real this time).
91 lines
3.5 KiB
Ruby
91 lines
3.5 KiB
Ruby
module ActionController
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# The record identifier encapsulates a number of naming conventions for dealing with records, like Active Records or
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# Active Resources or pretty much any other model type that has an id. These patterns are then used to try elevate
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# the view actions to a higher logical level. Example:
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#
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# # routes
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# map.resources :posts
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#
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# # view
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# <% div_for(post) do %> <div id="post_45" class="post">
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# <%= post.body %> What a wonderful world!
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# <% end %> </div>
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#
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# # controller
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# def destroy
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# post = Post.find(params[:id])
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# post.destroy
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#
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# respond_to do |format|
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# format.html { redirect_to(post) } # Calls polymorphic_url(post) which in turn calls post_url(post)
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# format.js do
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# # Calls: new Effect.fade('post_45');
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# render(:update) { |page| page[post].visual_effect(:fade) }
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# end
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# end
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# end
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#
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# As the example above shows, you can stop caring to a large extent what the actual id of the post is. You just know
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# that one is being assigned and that the subsequent calls in redirect_to and the RJS expect that same naming
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# convention and allows you to write less code if you follow it.
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module RecordIdentifier
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extend self
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# Returns plural/singular for a record or class. Example:
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#
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# partial_path(post) # => "posts/post"
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# partial_path(Person) # => "people/person"
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def partial_path(record_or_class)
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klass = class_from_record_or_class(record_or_class)
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"#{klass.name.tableize}/#{klass.name.demodulize.underscore}"
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end
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# The DOM class convention is to use the singular form of an object or class. Examples:
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#
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# dom_class(post) # => "post"
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# dom_class(Person) # => "person"
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#
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# If you need to address multiple instances of the same class in the same view, you can prefix the dom_class:
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#
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# dom_class(post, :edit) # => "edit_post"
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# dom_class(Person, :edit) # => "edit_person"
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def dom_class(record_or_class, prefix = nil)
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[ prefix, singular_class_name(record_or_class) ].compact * '_'
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end
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# The DOM class convention is to use the singular form of an object or class with the id following an underscore.
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# If no id is found, prefix with "new_" instead. Examples:
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#
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# dom_class(Post.new(:id => 45)) # => "post_45"
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# dom_class(Post.new) # => "new_post"
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#
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# If you need to address multiple instances of the same class in the same view, you can prefix the dom_id:
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#
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# dom_class(Post.new(:id => 45), :edit) # => "edit_post_45"
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def dom_id(record, prefix = nil)
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prefix ||= 'new' unless record.id
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[ prefix, singular_class_name(record), record.id ].compact * '_'
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end
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# Returns the plural class name of a record or class. Examples:
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#
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# plural_class_name(post) # => "posts"
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# plural_class_name(Highrise::Person) # => "highrise_people"
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def plural_class_name(record_or_class)
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singular_class_name(record_or_class).pluralize
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end
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# Returns the singular class name of a record or class. Examples:
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#
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# singular_class_name(post) # => "post"
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# singular_class_name(Highrise::Person) # => "highrise_person"
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def singular_class_name(record_or_class)
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class_from_record_or_class(record_or_class).name.underscore.tr('/', '_')
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end
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private
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def class_from_record_or_class(record_or_class)
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record_or_class.is_a?(Class) ? record_or_class : record_or_class.class
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end
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end
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end |