Created Django App with commands to import software license numbers per class.

lms/djangoapps/licenses/management/commands/import_serials.py

+import os.path
+
+from optparse import make_option
+
+from django.utils.html import escape
+from django.core.management.base import BaseCommand, CommandError
+
+from xmodule.modulestore.django import modulestore
+
+from licenses.models import Software, StudentLicense
+
+
+class Command(BaseCommand):
+    help = """Imports serial numbers for software used in a course.
+
+    Usage: import_serials course_id software_id serial_file
+
+    serial_file is a text file that list one available serial number per line.
+
+    Example:
+      import_serials.py MITx/6.002x/2012_Fall matlab /tmp/matlab-serials.txt
+    """
+
+    args = "course_id software_id serial_file"
+
+    def handle(self, *args, **options):
+        """
+        """
+        course_id, software_name, filename = self._parse_arguments(args)
+
+        software = self._find_software(course_id, software_name)
+
+        self._import_serials(software, filename)
+
+    def _parse_arguments(self, args):
+        if len(args) != 3:
+            raise CommandError("Incorrect number of arguments")
+
+        course_id = args[0]
+        courses = modulestore().get_courses()
+        known_course_ids = set(c.id for c in courses)
+
+        if course_id not in known_course_ids:
+            raise CommandError("Unknown course_id")
+
+        software_name = escape(args[1].lower())
+
+        filename = os.path.abspath(args[2])
+        if not os.path.exists(filename):
+            raise CommandError("Cannot find filename {0}".format(filename))
+
+        return course_id, software_name, filename
+
+    def _find_software(self, course_id, software_name):
+        try:
+            software = Software.objects.get(course_id=course_id, name=software_name)
+        except Software.DoesNotExist:
+            software = Software(name=software_name, course_id=course_id)
+            software.save()
+
+        return software
+
+    def _import_serials(self, software, filename):
+        print "Importing serial numbers for {0} {1}".format(
+            software.name, software.course_id)
+
+        known_serials = set(l.serial for l in  StudentLicense.objects.filter(software=software))
+
+        count = 0
+        serials = list(l.strip() for l in open(filename))
+        for s in serials:
+            if s not in known_serials:
+                license = StudentLicense(software=software, serial=s)
+                license.save()
+                count += 1
+
+        print "{0} new serial numbers imported.".format(count)

lms/djangoapps/licenses/models.py

+"""
+"""
+
+from django.db import models
+
+from student.models import User
+
+
+class Software(models.Model):
+    name = models.CharField(max_length=255)
+    full_name = models.CharField(max_length=255)
+    url = models.CharField(max_length=255)
+    course_id = models.CharField(max_length=255)
+
+
+class StudentLicense(models.Model):
+    software = models.ForeignKey(Software, db_index=True)
+    serial = models.CharField(max_length=255)
+    user = models.ForeignKey(User, null=True, blank=True)

lms/envs/common.py

@@ -626,6 +626,7 @@ INSTALLED_APPS = (
     'certificates',
     'instructor',
     'psychometrics',
+    'licenses',
 
     #For the wiki
     'wiki', # The new django-wiki from benjaoming