Action View Template Handlers

Action View Text Template

Action View Template

Methods
I
M
N
R
S
Classes and Modules
Constants
Finalizer = proc do |method_name, mod| proc do mod.module_eval do remove_possible_method method_name end end end
 

This finalizer is needed (and exactly with a proc inside another proc) otherwise templates leak in development.
Attributes
[RW] locals
[RW] formats
[RW] virtual_path
[R] source
[R] identifier
[R] handler
[R] original_encoding
[R] updated_at
Class Public methods
new(source, identifier, handler, details)

Source: show | on GitHub 

# File actionpack/lib/action_view/template.rb, line 115
def initialize(source, identifier, handler, details)
  format = details[:format] || (handler.default_format if handler.respond_to?(:default_format))

  @source            = source
  @identifier        = identifier
  @handler           = handler
  @compiled          = false
  @original_encoding = nil
  @locals            = details[:locals] || []
  @virtual_path      = details[:virtual_path]
  @updated_at        = details[:updated_at] || Time.now
  @formats = Array.wrap(format).map { |f| f.is_a?(Mime::Type) ? f.ref : f }
end
Instance Public methods
inspect()

Source: show | on GitHub 

# File actionpack/lib/action_view/template.rb, line 173
def inspect
  @inspect ||= defined?(Rails.root) ? identifier.sub("#{Rails.root}/", '') : identifier
end
mime_type()

Source: show | on GitHub 

# File actionpack/lib/action_view/template.rb, line 150
def mime_type
  @mime_type ||= Mime::Type.lookup_by_extension(@formats.first.to_s) if @formats.first
end
refresh(view)

Receives a view object and return a template similar to self by using @virtual_path.

This method is useful if you have a template object but it does not contain its source anymore since it was already compiled. In such cases, all you need to do is to call refresh passing in the view object.

Notice this method raises an error if the template to be refreshed does not have a virtual path set (true just for inline templates).

Source: show | on GitHub 

# File actionpack/lib/action_view/template.rb, line 162
def refresh(view)
  raise "A template needs to have a virtual path in order to be refreshed" unless @virtual_path
  lookup  = view.lookup_context
  pieces  = @virtual_path.split("/")
  name    = pieces.pop
  partial = !!name.sub!(/^_/, "")
  lookup.disable_cache do
    lookup.find_template(name, [ pieces.join('/') ], partial, @locals)
  end
end
render(view, locals, buffer=nil, &block)

Render a template. If the template was not compiled yet, it is done exactly before rendering.

This method is instrumented as “!render_template.action_view”. Notice that we use a bang in this instrumentation because you don’t want to consume this in production. This is only slow if it’s being listened to.

Source: show | on GitHub 

# File actionpack/lib/action_view/template.rb, line 141
def render(view, locals, buffer=nil, &block)
  ActiveSupport::Notifications.instrument("!render_template.action_view", :virtual_path => @virtual_path) do
    compile!(view)
    view.send(method_name, locals, buffer, &block)
  end
rescue Exception => e
  handle_render_error(view, e)
end
supports_streaming?()

Returns if the underlying handler supports streaming. If so, a streaming buffer may be passed when it start rendering.

Source: show | on GitHub 

# File actionpack/lib/action_view/template.rb, line 131
def supports_streaming?
  handler.respond_to?(:supports_streaming?) && handler.supports_streaming?
end