Class: Rabl::Renderer

Inherits:
Object
  • Object
show all
Defined in:
lib/rabl/renderer.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(source, object = nil, options = {}) ⇒ Renderer

Public: Instantiate a new renderer This is a standalone class used for rendering rabl templates outside of a framework like Rails. You may want to use this when using Rabl to render the request objects passed to message queues.

Example:

renderer = Rabl::Renderer.new('template_name', user, { :format => 'json', :view_path => 'app/views' })
renderer.render # => '{"user":{"name": "ivan" }}'


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# File 'lib/rabl/renderer.rb', line 26

def initialize(source, object = nil, options = {})
  options = {
    :format     => :json,
    :scope      => self,
    :view_path  => [],
    :template   => source
  }.merge(options)

  @options  = options
  @object   = object

  engine.source = process_source(source)
end

Instance Attribute Details

#objectObject (readonly)

Returns the value of attribute object



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# File 'lib/rabl/renderer.rb', line 14

def object
  @object
end

#optionsObject (readonly)

Returns the value of attribute options



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# File 'lib/rabl/renderer.rb', line 14

def options
  @options
end

Instance Method Details

#render(context_scope = nil) ⇒ Object

Public: Actually render the template to the requested output format.

  • context_scope:

    Override the render context_scope to the 'context_scope' object. Defaults to self.

Returns: And object representing the tranformed object in the requested format.

e.g. json, xml, bson, plist


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# File 'lib/rabl/renderer.rb', line 47

def render(context_scope = nil)
  context_scope ||= options[:scope] || self

  set_object_instance_variable if context_scope == self

  locals = { :object => object }.merge(options.fetch(:locals, {}))

  engine.apply(context_scope, locals).render
end