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Editing File: Invoice.php

<?php

/* 
 * Copyright (C) Wayne Purton-Smith - All Rights Reserved
 * Unauthorized copying of this file or removing this paragraph, via any medium is strictly prohibited
 * Proprietary and confidential
 * Written by Wayne Purton-Smith <waynepurtonsmith@hotmail.co.uk> February 2014
 */

class Invoice extends CI_Model {
    
    private $pdf = NULL;
    private $pdf_path = 'assets/pdf/';
    
    function __construct()
    {
        if(!$this->pdf)
        {
            require_once(APPPATH . 'third_party/dompdf/dompdf_config.inc.php');
            
            $this->pdf = new DOMPDF();
            $this->pdf->set_paper('A4');
        }
    }
    
    public function generateOrderInvoice($order_id = 0, $download_invoice = false, $email_invoice = false, $detailed_invoice = false, $page_copies = 1)
    {
        if(($order_info = $this->orders->get($order_id)))
        {
            $contents = $this->template('invoice', array
            (
                'order_info'                => $order_info,
                'order_items'               => $this->orders->getOrderItems($order_id),
                'delivery_name'             => (($formatted_name = format_name($order_info->delivery_first_name, $order_info->delivery_last_name))) ? $formatted_name : $order_info->delivery_business,
                'delivery_address'          => format_address($order_info->delivery_address_1, $order_info->delivery_address_2, $order_info->delivery_address_3, $order_info->delivery_town, $order_info->delivery_county, $order_info->delivery_postcode, $order_info->delivery_country),
                'delivery_contact_details'  => (($delivery_contact = array_filter(array($order_info->delivery_phone, $order_info->delivery_mobile, $order_info->delivery_email))) && isset($delivery_contact[0])) ? $delivery_contact[0] : NULL,
                'invoice_name'              => (($formatted_name = format_name($order_info->invoice_first_name, $order_info->invoice_last_name))) ? $formatted_name : $order_info->invoice_business,
                'real_invoice_name'         => (($order_info->invoice_business) ? $order_info->invoice_business : format_name($order_info->invoice_first_name, $order_info->invoice_last_name)),
                'invoice_address'           => format_address($order_info->invoice_address_1, $order_info->invoice_address_2, $order_info->invoice_address_3, $order_info->invoice_town, $order_info->invoice_county, $order_info->invoice_postcode, $order_info->invoice_country),
                'invoice_contact_details'   => (($invoice_contact = array_filter(array($order_info->invoice_phone, $order_info->invoice_mobile, $order_info->invoice_email))) && isset($invoice_contact[0])) ? $invoice_contact[0] : NULL,
                'page_copies'               => $page_copies,
                'detailed_invoice'          => $detailed_invoice
            ));
            
            $this->pdf->load_html($contents);
            $this->pdf->render();

$pdf_contents = $this->pdf->output();

$pdf_location = $this->pdf_path . 'invoice-' . $order_id . '.pdf';

if(!(is_really_writable($this->pdf_path) && file_put_contents($pdf_location, $pdf_contents)))
            {
                return false;
            }

if($email_invoice && $order_info->invoice_email)
            {
                $this->common->sendEmail(array
                (
                    'email'     => $order_info->invoice_email,
                    'bcc'       => $order_info->cc_email,
                    'subject'   => $this->config->item('company_name') . ' order #' . $order_info->order_number . ' invoice',
                    'files'     => array
                    (
                        array($pdf_location, $order_info->order_number . '-invoice.pdf')
                    ),
                    'variables' => array
                    (
                        'name'          => ($order_info->invoice_business) ? $order_info->invoice_business : format_name($order_info->invoice_first_name, $order_info->invoice_last_name),
                        'order_info'    => $order_info
                    )
                ), 'invoice');
                
                $this->db->query($this->db->update_string('orders', array('invoice_last_sent' => time()), "`order_id` = $order_id"));
                
                if(!$download_invoice)
                {
                    return true;
                }
            }
            
            if($download_invoice)
            {
                $this->downloadInvoice('Invoice #' . $order_info->order_number, $pdf_location);
            }
            
            $this->pdf->stream('invoice.pdf', array('Attachment' => 0));
        }
        
        return false;
    }
    
    public function generatePaymentInvoice()
    {
        
    }
    
    public function downloadInvoice($file_name = '', $pdf_path = '')
    {
        if(file_exists($pdf_path))
        {
            header("Content-Type: application/pdf", true);
            header("Content-Disposition: attachment; filename=\"$file_name.pdf\"", true);
            header("Content-Length: " . filesize($pdf_path), true);
            
            readfile($pdf_path);
        }
    }
    
    public function template($template = 'invoice', $data = array())
    {
        return $this->load->view('templates/' . $template, $data, true);
    }
}

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