Multiple Invoices to PDF

Gemfile

@@ -8,6 +8,7 @@ gem 'will_paginate'
 gem 'rails-jquery-autocomplete'
 gem 'jquery-ui-rails'
 gem 'rexml'
+gem 'combine_pdf'
 
 group :assets do
   gem 'coffee-rails'

app/controllers/invoice_controller.rb

@@ -1,6 +1,6 @@
 #The MIT License (MIT)
 #
-#Copyright (c) 2024 rick barrette
+#Copyright (c) 2026 rick barrette
 #
 #Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 #
@@ -10,6 +10,7 @@
 class InvoiceController < ApplicationController
   
   include AuthHelper
+  require 'combine_pdf'
 
   before_action :require_user, :unless => proc {|c| session[:token].nil? }
   skip_before_action :verify_authenticity_token, :check_if_login_required, :unless => proc {|c| session[:token].nil? }
@@ -18,13 +19,33 @@ class InvoiceController < ApplicationController
   # Downloads and forwards the invoice pdf
   #
   def show
+    logger.info("Processing request for URL: #{request.original_url}") 
     begin
       qbo = Qbo.first
         qbo.perform_authenticated_request do |access_token|
         service = Quickbooks::Service::Invoice.new(:company_id => qbo.realm_id, :access_token => access_token)
-        invoice = service.fetch_by_id(params[:id])
-        @pdf = service.pdf(invoice)
-        send_data @pdf, filename: "invoice #{invoice.doc_number}.pdf", :disposition => 'inline', :type => "application/pdf"
+        
+        # If multiple id's then pull each pdf & combine them
+        if params[:item_ids]
+          logger.info("Grabbing pdfs for " + params[:item_ids].join(', '))
+          ref = ""
+          params[:item_ids].each do |i|
+            logger.info("processing " + i)
+            invoice = service.fetch_by_id(i)
+            ref += " #{invoice.doc_number}"
+            @pdf << CombinePDF.parse(service.pdf(invoice)) unless @pdf.nil?
+            if @pdf.nil?
+              @pdf = CombinePDF.parse(service.pdf(invoice))
+            end
+          end
+          @pdf = @pdf.to_pdf
+        else
+          invoice = service.fetch_by_id(params[:id])
+          @pdf = service.pdf(invoice)
+          ref = invoice.doc_number
+        end
+
+        send_data @pdf, filename: "invoice #{ref}.pdf", :disposition => 'inline', :type => "application/pdf"
       end
     rescue
       redirect_to :back, :flash => { :error => "Invoice not found" }

app/views/invoices/_list.html.erb

@@ -1,9 +1,20 @@
 <% if @customer.present? %>
 
-  <% @customer.invoices.order(id: :desc).each do |invoice| %>
-    <div class="row">
-      <b><%= link_to "##{invoice.doc_number}", invoice_path(invoice), target: :_blank %></b> <%= invoice.txn_date %>
+  <%= form_with(url: invoice_path, method: :get) do |form| %>
+
+    <div class="form-check">
+      <%= check_box_tag "select_all", "1", false, id: "select-all-batches" %>
+      <%= label_tag "select-all-batches", "Select All Items" %>
     </div>
+
+    <% @customer.invoices.order(id: :desc).each do |invoice| %>
+      <div class="row">
+        <%= check_box_tag "item_ids[]", invoice.id, false,data: { checkbox_select_all_target: "checkbox", class: "item-checkbox" } %>
+        <b><%= link_to "##{invoice.doc_number}", invoice_path(invoice), target: :_blank %></b> <%= invoice.txn_date %>
+      </div>
+    <% end %>
+
+    <%= form.submit "Bulk PDF" %>
   <% end %>
 
 <% else %>