mankind

Setting up Hyku Addons from scratch

Deleting existing system

If already exists and you want to start fresh DANGER: This will kill it all including data

docker-compose down
docker-compose system prune

File Chunk Upload

To support large file upload we need to segregate the file to different chunks and we will be sending each chunk in a single request to the server. Once they recieve the complete chunk, we will combine the chunk to get the actual file.

Following are the steps we followed to implement the feature.

Since we are using jquery already, we make use of Jquery Chunk upload library (https://github.com/blueimp/jQuery-File-Upload/wiki/Chunked-file-uploads) which is already being supported byHyraxUploader.

Mailer Report

For the mailer report we have WorkReportMailer which acts as the controller of the Application Mailer. The mailer is called in the ExportController file.

  def send_mail_report
    emails = process_email
    emails.each do |email|
      WorkReportMailer.send_report(email.strip, current_account.cname, params[:email_type]).deliver_later
    end
 redirect_to hyrax.admin_stats_path(anchor: 'email_reports')

S3 Masking URL

For masking the url we created a seperate routes, controller to fetch the record and generate the url for the download file.

  app/controllers/ubiquity/fail_uploads_controller.rb
  
  def download_file
    params[:fileset_id]
    uuid = params[:uuid]
 s3_file_set_url = Ubiquity::ImporterClient.get_s3_url uuid

RIF Doc

For Rif template all the fileds have unique codes and we represent eah codes to the corresponding value. Following are the steps we follow to generate the report

Fetch the corresponding work from the controller CitationExportsController (app/controllers/ubiquity/citation_exports_controller.rb) and process the fetched record to render in RIF fromat.
A Controller Concern is added to handle the processing of data in Rif format (app/controllers/concerns/ubiquity/citations_export_concern.rb)

Basically we have a hash which consist of code and the fields that needs to map. Please find the hash below

OAI Export

For OAI we are using the BlackLightOaiProvider gem (https://github.com/projectblacklight/blacklight_oai_provider) which harvest the data automatically once it is configured in the catalog controller. We have divided into two phases.

We do have an ENV variable which acts as a switch to enable this feature .

ENABLE_OAI_METADATA: 'true'

	Loading development environment (Rails 4.0.0)
	2.0.0-p247 :001 > Date.today
	=> Thu, 26 Sep 2013
	2.0.0-p247 :002 > Date.tomorrow
	=> Thu, 26 Sep 2013

	module SoftDelete
	extend ActiveSupport::Concern

	included do
	define_model_callbacks :soft_delete
	define_model_callbacks :recover
	default_scope where(:deleted_at => nil)
	class_eval do
	class << self
	alias_method :with_deleted, :unscoped

	require 'carrierwave/processing/mini_magick'

	class ImageUploader < CarrierWave::Uploader::Base
	include CarrierWave::MiniMagick

	IMAGE_EXTENSIONS = %w(jpg jpeg gif png)
	DOCUMENT_EXTENSIONS = %w(exe pdf doc docm xls)

	def store_dir
	"files/#{model.id}"

	# Install the MongoDB gem
	%w{ mongo bson_ext }.each do \|mongo_gem\|
	gem_install = gem_package mongo_gem do
	action :nothing
	end
	gem_install.run_action(:install)
	end
	Gem.clear_paths
	require 'mongo'