Class: Effigy::Rails::TemplateHandler

Inherits:

Object

• Object
• Effigy::Rails::TemplateHandler

show all

Defined in:

lib/effigy/rails/template_handler.rb

Overview

Class Method Summary (collapse)

• + (Object) call(view)

Instance Method Summary (collapse)

• - (String) base_path

  Guesses the base path from the virtual path (ie “users/index”).

• - (String) call

  Compiles the given view.

• - (TemplateHandler) initialize(view) constructor

  A new instance of TemplateHandler.

• - (Boolean) layout?

  True-ish if this view is a layout, false-ish otherwise.

• - (Object) load_view_class

  Loads the view class from the discovered view file.

• - (Boolean) partial?

  True-ish if this view is a partial, false-ish otherwise.

• - (String) render_method

  The template will be parsed as a full html document for a layout, and a fragment for anything else.

• - (String) template_source

  The contents of the template file for this view.

• - (Array) view_class_components

  The components that make up the class name for this view.

• - (Object) view_class_name

  Generates a class name for this view.

• - (String) view_class_suffix

  The suffix for this view based on the type of view.

• - (Object) view_filename
• - (String) view_format

  The format being rendered.

• - (Object) view_load_path
• - (String) view_name

  Guess the view name from the virtual path.

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# File 'lib/effigy/rails/template_handler.rb', line 21

def initialize(view)
  @view = view
end

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# File 'lib/effigy/rails/template_handler.rb', line 17

def self.call(view)
  new(view).call
end

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# File 'lib/effigy/rails/template_handler.rb', line 51

def base_path
  # starts out like "users/index"
  @view.virtual_path.sub(%r{/[^/]*$}, '')
end

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# File 'lib/effigy/rails/template_handler.rb', line 28

def call
  load_view_class
  return <<-RUBY
    instance_vars = assigns.merge(local_assigns).inject({}) do |result, (name, value)|
      result.update("@\#{name}" => value)
    end
    view = #{view_class_name}.new(self, instance_vars) { |*names| yield(*names) }
    view.#{render_method}(#{template_source.inspect})
  RUBY
end

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# File 'lib/effigy/rails/template_handler.rb', line 96

def layout?
  base_path =~ /^layouts/
end

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# File 'lib/effigy/rails/template_handler.rb', line 60

def load_view_class
  load(view_filename)
end

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# File 'lib/effigy/rails/template_handler.rb', line 112

def partial?
  view_name =~ /^_/
end

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# File 'lib/effigy/rails/template_handler.rb', line 103

def render_method
  if layout?
    'render_html_document'
  else
    'render_html_fragment'
  end
end

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# File 'lib/effigy/rails/template_handler.rb', line 117

def template_source
  template_path = view_load_path.sub(/\/views$/, '/templates')
  template_file_name = File.join(template_path, base_path, "#{view_name}.#{view_format}")
  IO.read(template_file_name)
end

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# File 'lib/effigy/rails/template_handler.rb', line 80

def view_class_components
  [base_path, view_name.sub(/^_/, ''), view_class_suffix]
end

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# File 'lib/effigy/rails/template_handler.rb', line 75

def view_class_name
  view_class_components.join('_').camelize.sub(/^Layouts/, '')
end

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# File 'lib/effigy/rails/template_handler.rb', line 85

def view_class_suffix
  if layout?
    'layout'
  elsif partial?
    'partial'
  else
    'view'
  end
end

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# File 'lib/effigy/rails/template_handler.rb', line 64

def view_filename
  @view.identifier
end

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# File 'lib/effigy/rails/template_handler.rb', line 128

def view_format
  @view.formats.first
end

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# File 'lib/effigy/rails/template_handler.rb', line 123

def view_load_path
  @view.identifier.sub(%r{/#{Regexp.escape(@view.virtual_path)}.*$}, '')
end

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# File 'lib/effigy/rails/template_handler.rb', line 42

def view_name
  @view.virtual_path.split('/').last
end