Class: HealthDataStandards::Export::RenderingContext

Inherits:
OpenStruct
  • Object
show all
Includes:
ViewHelper
Defined in:
lib/health-data-standards/export/rendering_context.rb

Overview

Used to actually render stuff. A RenderingContext needs to be set up with a template helper and may be provided with extensions.

:call-seq:

template_helper = HealthDataStandards::Export::TemplateHelper.new('cat1', 'cat1')
rendering_context = HealthDataStandards::Export::RenderingContext.new
rendering_context.template_helper = template_helper
rendering_context.extensions = [HealthDataStandards::Export::Helper::Cat1ViewHelper]

In this case, a RenderingContext is being set up to generate Category 1 files. It is passed a template helper to finds the correct ERb templates to render from. It is also given an extension. This is just a Ruby Module which will have its methods exposed to the templates. RenderingContext will assume that extensions is an Array and will include multiple extensions if more than one is provided.

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from ViewHelper

#code_display, #convert_field_to_hash, #is_bool?, #is_num?, #status_code_for, #time_if_not_nil, #value_or_null_flavor

Instance Attribute Details

#extensions ⇒ Object

Returns the value of attribute extensions.



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# File 'lib/health-data-standards/export/rendering_context.rb', line 19

def extensions
  @extensions
end

#template_helper ⇒ Object

Returns the value of attribute template_helper.



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# File 'lib/health-data-standards/export/rendering_context.rb', line 19

def template_helper
  @template_helper
end

Instance Method Details

#my_binding ⇒ Object 



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# File 'lib/health-data-standards/export/rendering_context.rb', line 21

def my_binding
  binding
end

#render(params) ⇒ Object 



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# File 'lib/health-data-standards/export/rendering_context.rb', line 25

def render(params)
  erb = nil
  if params[:template]
    erb = @template_helper.template(params[:template])
  elsif params[:partial]
    erb = @template_helper.partial(params[:partial])
  end
  
  locals = params[:locals]
  locals ||= {}
  rendering_context = RenderingContext.new(locals)
  rendering_context.template_helper = @template_helper
  if @extensions.present?
    rendering_context.extensions = @extensions
    @extensions.each do |extension|
      rendering_context.extend(extension)
    end
  end
  eruby = Erubis::EscapedEruby.new(erb) # TODO: cache these
  eruby.result(rendering_context.my_binding)
end