[Printer] Allow to disable printer in 'Preferences'

printer/templates/printer/printer_disabled.html

@@ -0,0 +1,11 @@
+{% extends "printer/sidebar.html" %}
+{% load staticfiles %}
+
+{% load i18n %}
+{% load bootstrap3 %}
+
+{% block title %}Printing interface{% endblock %}
+{% block content %}
+{% csrf_token %}
+  <h3>{% trans "Sorry, the printer currently experiences fatal issues..." %}</h3>
+{% endblock %}

printer/utils.py

@@ -5,13 +5,21 @@ import os
 from django.template.loader import get_template
 from django.core.mail import EmailMessage
 
-from preferences.models import GeneralOption, AssoOption
+from preferences.models import GeneralOption, AssoOption, OptionalPrinter
 
 from .models import Digicode
 
 import datetime
 
 
+def printer_enabled():
+    """
+    Check whether the printer is enabled or not
+    """
+    settings, created  = OptionalPrinter.objects.get_or_create()
+    return settings.Printer_enabled
+
+
 def pdfinfo(file_path):
     """
     Uses pdfinfo to extract the PDF meta information.

printer/views.py

@@ -18,7 +18,7 @@ from users.models import User
 from re2o.base import re2o_paginator
 from . import settings
 
-from .utils import pdfinfo, send_mail_printer
+from .utils import pdfinfo, send_mail_printer, printer_enabled
 
 from .models import (
     JobWithOptions,
@@ -48,6 +48,8 @@ def new_job(request):
     """
     View to create a new printing job
     """
+    if not printer_enabled():
+        return render(request, 'printer/printer_disabled.html', {})
     print_operation = PrintOperation(user=request.user)
 
     job_formset = formset_factory(JobWithOptionsForm)(