Created Schedule model

This model will be used to control dynamic upgrade deadlines for
learners.

lms/envs/common.py

@@ -2241,8 +2241,8 @@ INSTALLED_APPS = (
     # Unusual migrations
     'database_fixups',
 
-    # Waffle related utilities
     'openedx.core.djangoapps.waffle_utils',
+    'openedx.core.djangoapps.schedules',
 
     # Features
     'openedx.features.course_bookmarks',
@@ -2251,7 +2251,6 @@ INSTALLED_APPS = (
     'openedx.features.enterprise_support',
     'openedx.features.learner_profile',
 
-    # Experiments
     'experiments',
 
     # DRF filters

openedx/core/djangoapps/schedules/admin.py

+from django.contrib import admin
+from django.utils.translation import ugettext_lazy as _
+
+from . import models
+
+
+@admin.register(models.Schedule)
+class ScheduleAdmin(admin.ModelAdmin):
+    list_display = ('username', 'course_id', 'active', 'start', 'upgrade_deadline')
+    raw_id_fields = ('enrollment',)
+    readonly_fields = ('modified',)
+    search_fields = ('enrollment__user__username', 'enrollment__course_id',)
+
+    def username(self, obj):
+        return obj.enrollment.user.username
+
+    username.short_description = _('Username')
+
+    def course_id(self, obj):
+        return obj.enrollment.course_id
+
+    course_id.short_description = _('Course ID')
+
+    def get_queryset(self, request):
+        qs = super(ScheduleAdmin, self).get_queryset(request)
+        qs = qs.select_related('enrollment', 'enrollment__user')
+        return qs

openedx/core/djangoapps/schedules/migrations/0001_initial.py

+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django_extensions.db.fields
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('student', '0010_auto_20170207_0458'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Schedule',
+            fields=[
+                ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
+                ('created', django_extensions.db.fields.CreationDateTimeField(auto_now_add=True, verbose_name='created')),
+                ('modified', django_extensions.db.fields.ModificationDateTimeField(auto_now=True, verbose_name='modified')),
+                ('active', models.BooleanField(default=True, help_text='Indicates if this schedule is actively used')),
+                ('start', models.DateTimeField(help_text='Date this schedule went into effect')),
+                ('upgrade_deadline', models.DateTimeField(help_text='Deadline by which the learner must upgrade to a verified seat', null=True, blank=True)),
+                ('enrollment', models.OneToOneField(to='student.CourseEnrollment')),
+            ],
+            options={
+                'verbose_name': 'Schedule',
+                'verbose_name_plural': 'Schedules',
+            },
+        ),
+    ]

openedx/core/djangoapps/schedules/models.py

+from django.db import models
+from django.utils.translation import ugettext_lazy as _
+from django_extensions.db.models import TimeStampedModel
+
+
+class Schedule(TimeStampedModel):
+    enrollment = models.OneToOneField('student.CourseEnrollment', null=False)
+    active = models.BooleanField(default=True, help_text=_('Indicates if this schedule is actively used'))
+    start = models.DateTimeField(help_text=_('Date this schedule went into effect'))
+    upgrade_deadline = models.DateTimeField(
+        blank=True,
+        null=True,
+        help_text=_('Deadline by which the learner must upgrade to a verified seat')
+    )
+
+    class Meta(object):
+        verbose_name = _('Schedule')
+        verbose_name_plural = _('Schedules')