mattdrayer/api-cmc-stage-fix: Strip i4x prefix from stage column values

lms/djangoapps/api_manager/management/commands/migrate_stage_prefix.py

+"""
+One-time data migration script -- shouldn't need to run it again
+"""
+import logging
+
+from django.core.management.base import BaseCommand
+
+from api_manager import models as api_models
+
+log = logging.getLogger(__name__)
+
+
+class Command(BaseCommand):
+    """
+    Migrates legacy course/content identifiers across several models to the new format
+    """
+
+    def handle(self, *args, **options):
+        log.warning('Migrating Course Module Completions Stage Field...')
+        course_module_completions = api_models.CourseModuleCompletion.objects.all()
+        for cmc in course_module_completions:
+            if cmc.stage is not None:
+                cmc.stage = cmc.stage.replace("i4x://", "")
+                cmc.save()
+        log.warning('Complete!')

lms/djangoapps/api_manager/management/commands/tests/test_migrate_stage_prefix.py

+"""
+Run these tests @ Devstack:
+    rake fasttest_lms[common/djangoapps/api_manager/management/commands/tests/test_migrate_orgdata.py]
+"""
+
+from django.contrib.auth.models import User
+
+from api_manager import models as api_models
+from api_manager.management.commands import migrate_stage_prefix
+from xmodule.modulestore.tests.django_utils import ModuleStoreTestCase
+
+class MigrateCourseIdsTests(ModuleStoreTestCase):
+    """
+    Test suite for data migration script
+    """
+
+    def setUp(self):
+
+        self.good_style_course_id = "old/style/id"
+        self.good_style_content_id = "i4x://old/style/chapter/1234567890"
+        self.bad_style_stage = 'i4x://evaluation'
+        self.good_style_stage = 'evaluation'
+
+        self.good_style_course_id2 = "old2/style2/id2"
+        self.good_style_content_id2 = "i4x://old2/style2/chapter2/1234567890"
+        self.bad_style_stage2 = 'i4x://upload'
+        self.good_style_stage2 = 'upload'
+
+    def test_migrate_stage_prefix(self):
+        """
+        Test the data migration
+        """
+        # Set up the data to be migrated
+        user = User.objects.create(email='testuser@edx.org', username='testuser', password='testpassword', is_active=True)
+        course_module_completion = api_models.CourseModuleCompletion.objects.create(user=user, course_id=self.good_style_course_id, content_id=self.good_style_content_id, stage=self.bad_style_stage)
+
+        user2 = User.objects.create(email='testuser2@edx.org', username='testuser2', password='testpassword2', is_active=True)
+        course_module_completion2 = api_models.CourseModuleCompletion.objects.create(user=user2, course_id=self.good_style_course_id2, content_id=self.good_style_content_id2, stage=self.bad_style_stage2)
+
+
+        # Run the data migration
+        migrate_stage_prefix.Command().handle()
+
+
+        updated_course_module_completion = api_models.CourseModuleCompletion.objects.get(id=course_module_completion.id)
+        self.assertEqual(updated_course_module_completion.stage, self.good_style_stage)
+
+        updated_course_module_completion = api_models.CourseModuleCompletion.objects.get(id=course_module_completion2.id)
+        self.assertEqual(updated_course_module_completion.stage, self.good_style_stage2)
+        print "Course Module Completion Data Migration Passed"