Class: Shaf::Responder::Html

Inherits:
Base
  • Object
show all
Defined in:
lib/shaf/responder/html.rb

Constant Summary

Constants inherited from Base

Base::PRELOAD_FAILED_MSG

Instance Attribute Summary

Attributes inherited from Base

#controller, #options, #resource

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Base

#build_response, can_handle?, #initialize, #lookup_rel, mime_type, #preload_links, #serialized_hash, use_as_default!

Constructor Details

This class inherits a constructor from Shaf::Responder::Base

Class Method Details

.call(controller, resource, preload: [], **kwargs) ⇒ Object 



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# File 'lib/shaf/responder/html.rb', line 7

def call(controller, resource, preload: [], **kwargs)
  responder = responder_for(resource, controller, preload_rels: preload, **kwargs)
  response = responder.build_response
  add_preload_links(controller, response)

  html_responder = new(controller, resource, response: response)
  html_response = html_responder.build_response
  log_response(controller, response)

  write_response(controller, html_response)
end

.responder_for(resource, controller, **kwargs) ⇒ Object

Returns the “original” (non-html) responder



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# File 'lib/shaf/responder/html.rb', line 21

def responder_for(resource, controller, **kwargs)
  responders = Responder.send(:supported_responders_for, resource)
  responder_class = (responders - [self]).first || Responder.default
  responder_class.new(controller, resource, **kwargs)
end

Instance Method Details

#body ⇒ Object 



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# File 'lib/shaf/responder/html.rb', line 28

def body
  response = options[:response]
  serialized = response.serialized_hash
  if serialized.empty?
    serialized = begin
                   JSON.parse(response.body)
                 rescue StandardError
                   response.body
                 end
  end

  render serialized
end

#render(serialized) ⇒ Object 



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# File 'lib/shaf/responder/html.rb', line 42

def render(serialized)
  locals = {
    request_headers: request_headers,
    response_headers: response_headers,
    serialized: serialized
  }

  template =
    case resource
    when Formable::Form
      locals.merge!(form: resource)
      :form
    else
      :payload
    end

  controller.erb(template, locals: locals)
end

#request_headers ⇒ Object 



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# File 'lib/shaf/responder/html.rb', line 61

def request_headers
  controller.request_headers
end

#response_headers ⇒ Object 



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# File 'lib/shaf/responder/html.rb', line 65

def response_headers
  etag, kind = controller.send(:etag_for, options[:response].body)
  prefix = kind == :weak ? 'W/' : ''
  etag = %Q{#{prefix}"#{etag}"}

  type = options[:response].content_type

  controller.headers.merge('Content-Type' => type, 'ETag' => etag)
end