mankind

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'


	<% @account = account %>
	<div class="row">
	<div class="col-md-12">
	<div class="panel panel-default account-form">
	<%= form_for(@account, url: update_single_admin_account_setting_path(@account), :html => { class: 'form control' }) do \|f\| %>
	<div class="panel-body">
	<% if @account.errors.any? %>
	<div id="error_explanation">
	<h2><%= pluralize(@account.errors.count, "error") %> prohibited this account from being saved:</h2>

	#file location
	#app/controllers/ubiquity/oai_extension.rb
	module Ubiquity
	module OaiExtension
	extend ActiveSupport::Concern
	def oai_config
	blacklight_config.oai.merge(provider: {repository_url: request.original_url}) \|\| {provider: {repository_url: request.original_url}}
	end
	end
	end

	class AccountSettingsController < ApplicationController
	before_action :set_company

	def index
	end

	def update
	@company.update(set_record_params)
	redirect_to account_settings_path
	end

	#app/services/ubiquity/add_file.rb
	#this works as it is called whilr creating hte file, however all efforts to set the file_size field failed
	module Ubiquity
	module AddFile
	#private

	=begin
	def attach_attributes(file)
	puts "lagos"
	::Ubiquity::DetermineFileSize.call(file)

	# PostgreSQL. Versions 9.1 and up are supported.
	#
	# Install the pg driver:
	# gem install pg
	# On OS X with Homebrew:
	# gem install pg -- --with-pg-config=/usr/local/bin/pg_config
	# On OS X with MacPorts:
	# gem install pg -- --with-pg-config=/opt/local/lib/postgresql84/bin/pg_config
	# On Windows:
	# gem install pg