init.rb

require 'redmine'
#Mime::SET << Mime::PDF unless Mime::SET.include?(Mime::PDF)
#Mime::SET << Mime::ATOM unless Mime::SET.include?(Mime::ATOM)
Rails.configuration.middleware.use PDFKit::Middleware, {print_media_type: true}, only: [/\/time_invoice_reports\/report/, /\/time_invoice_reports\/.+\/project_report/]
Rails.configuration.serve_static_files = true
#The above three lines are setting Redmine level settings for the plug in

Rails.configuration.to_prepare do
  require_dependency 'user'
  User.send(:include, RedmineTimeInvoices::Patches::UserPatch)
  require_dependency 'project'
  Project.send(:include, RedmineTimeInvoices::Patches::ProjectPatch)
end

Redmine::Plugin.register :redmine_time_invoices do
  name 'Redmine Time Invoices'
  author 'Arkhitech'
  url 'http://github.com/arkhitech/redmine_time_invoices'
  author_url 'https://github.com/arkhitech'
  description 'Generates time invoice for each project where the Redmine Time Invoices plugin module is installed'
  version '0.0.1'
  
  project_module :time_invoices do
    permission :submit_invoiceable_time,:time_invoices => :index
    permission :generate_time_invoices,[:time_invoices => [:index, :new],:time_invoice_reports=> [:project_index,:project_report]]
    permission :edit_invoiceable_time, :time_invoices => :edit

    menu :project_menu, :time_invoices, 
      { controller: :time_invoices, :action => 'index' }, 
      after: :activity, param: :project_id
    
#     menu :project_menu, :time_invoice_reports, 
#      { controller: :time_invoice_reports, :action => 'project_index' }, 
#      after: :activity, param: :project_id
    
      Redmine::MenuManager.map :time_invoices_menu_project do |menu|
       menu.push :time_invoices_index,    { :controller => 'time_invoices', :action => 'index' },after: :activity, param: :project_id,:caption => 'Overview Invoices'
       menu.push :time_invoices_new, { :controller => 'time_invoices', :action=>'new' },after: :activity, param: :project_id, :caption => 'Generate Invoice'
       menu.push :time_invoice_reports,    { :controller => 'time_invoice_reports', :action => 'project_index' },after: :activity, param: :project_id, :caption => 'Reports'
       menu.push :time_invoice_charts,      {:controller => 'time_invoice_charts', :action => 'index_for_project'},after: :activity,param: :project_id, :caption => 'Analytics'
    end 

    
    menu :top_menu, :time_invoices, 
      { controller: :time_invoices, action: 'indexall' },
      if: Proc.new {User.current.allowed_to_globally?(:submit_invoiceable_time,{}) ||
          User.current.allowed_to_globally?(:generate_time_invoices,{}) ||
          User.current.allowed_to_globally?(:edit_invoiceable_time,{})
    
      }
      
      Redmine::MenuManager.map :time_invoices_menu do |menu|
      menu.push :time_invoices_all,    { :controller => 'time_invoices', :action => 'indexall' }, :caption => 'Overview'
      menu.push :time_invoices_top, { :controller => 'time_invoices', :action=>'topnew'}, :caption => 'Generate Invoice'
      menu.push :time_invoice_reports,    { :controller => 'time_invoice_reports', :action => 'index' }, :caption => 'Reports'
      menu.push :time_invoice_charts,      {:controller => 'time_invoice_charts', :action => 'index'}, :caption => 'Analytics'
    end
     
      
    end
    
    
    
      
    settings default: {'group_mail' => [1],'daily_working_hours'=>[8]}, partial: 'settings/invoice_settings'
  end