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109 lines
3 KiB
Ruby
109 lines
3 KiB
Ruby
module ActionView #:nodoc:
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class Template
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extend TemplateHandlers
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extend ActiveSupport::Memoizable
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include Renderable
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attr_accessor :filename, :load_path, :base_path, :name, :format, :extension
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delegate :to_s, :to => :path
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def initialize(template_path, load_paths = [])
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template_path = template_path.dup
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@base_path, @name, @format, @extension = split(template_path)
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@base_path.to_s.gsub!(/\/$/, '') # Push to split method
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@load_path, @filename = find_full_path(template_path, load_paths)
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# Extend with partial super powers
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extend RenderablePartial if @name =~ /^_/
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end
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def format_and_extension
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(extensions = [format, extension].compact.join(".")).blank? ? nil : extensions
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end
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memoize :format_and_extension
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def multipart?
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format && format.include?('.')
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end
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def content_type
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format.gsub('.', '/')
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end
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def mime_type
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Mime::Type.lookup_by_extension(format) if format
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end
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memoize :mime_type
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def path
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[base_path, [name, format, extension].compact.join('.')].compact.join('/')
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end
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memoize :path
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def path_without_extension
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[base_path, [name, format].compact.join('.')].compact.join('/')
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end
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memoize :path_without_extension
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def path_without_format_and_extension
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[base_path, name].compact.join('/')
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end
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memoize :path_without_format_and_extension
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def source
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File.read(filename)
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end
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memoize :source
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def method_segment
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segment = File.expand_path(filename)
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segment.sub!(/^#{Regexp.escape(File.expand_path(RAILS_ROOT))}/, '') if defined?(RAILS_ROOT)
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segment.gsub!(/([^a-zA-Z0-9_])/) { $1.ord }
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end
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memoize :method_segment
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def render_template(view, local_assigns = {})
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render(view, local_assigns)
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rescue Exception => e
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raise e unless filename
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if TemplateError === e
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e.sub_template_of(filename)
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raise e
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else
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raise TemplateError.new(self, view.assigns, e)
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end
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end
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private
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def valid_extension?(extension)
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Template.template_handler_extensions.include?(extension)
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end
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def find_full_path(path, load_paths)
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load_paths = Array(load_paths) + [nil]
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load_paths.each do |load_path|
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file = [load_path, path].compact.join('/')
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return load_path, file if File.file?(file)
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end
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raise MissingTemplate.new(load_paths, path)
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end
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# Returns file split into an array
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# [base_path, name, format, extension]
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def split(file)
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if m = file.match(/^(.*\/)?([^\.]+)\.?(\w+)?\.?(\w+)?\.?(\w+)?$/)
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if m[5] # Multipart formats
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[m[1], m[2], "#{m[3]}.#{m[4]}", m[5]]
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elsif m[4] # Single format
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[m[1], m[2], m[3], m[4]]
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else
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if valid_extension?(m[3]) # No format
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[m[1], m[2], nil, m[3]]
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else # No extension
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[m[1], m[2], m[3], nil]
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end
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end
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end
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end
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end
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end
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