Add migrations for managing executives and access_managers membership

gracedb/ligoauth/migrations/0048_update_executives_membership.py

+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.20 on 2019-07-08 20:30
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+# NOTE: membership in the 'executives' group has been managed by a script in a
+# separate repo in the past, so this migration is the starting point for
+# going away from that workflow.  Also, the executives group will eventually
+# be replaced by the 'access_managers' group, but until we update the
+# permissions structure in the events app, we have to maintain it.
+EXECUTIVES = [
+    'patrick.brady@LIGO.ORG',
+    'tanner.prestegard@LIGO.ORG',
+    'alexander.pace@LIGO.ORG',
+]
+
+
+def update_membership(apps, schema_editor):
+    User = apps.get_model('auth', 'User')
+    AuthGroup = apps.get_model('ligoauth', 'AuthGroup')
+
+    # Get executives group
+    execs = AuthGroup.objects.get(name='executives')
+
+    # Clear membership
+    execs.user_set.clear()
+
+    # Add users
+    for username in EXECUTIVES:
+        user, _ = User.objects.get_or_create(username=username)
+        execs.user_set.add(user)
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('ligoauth', '0047_add_emfollow_cert'),
+    ]
+
+    operations = [
+        migrations.RunPython(update_membership, migrations.RunPython.noop),
+    ]

gracedb/ligoauth/migrations/0049_update_access_managers_membership.py

+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.20 on 2019-07-08 20:37
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+ACCESS_MANAGERS = [
+    'alexander.pace@LIGO.ORG',
+    'brian.oreilly@LIGO.ORG',
+    'emfollow',
+    'erik.katsavounidis@LIGO.ORG'
+    'keita.kawabe@LIGO.ORG',
+    'leo.singer@LIGO.ORG',
+    'patrick.brady@LIGO.ORG',
+    'peter.shawhan@LIGO.ORG',
+    'sarah.antier@LIGO.ORG',
+    'shaon.ghosh@LIGO.ORG',
+    'tanner.prestegard@LIGO.ORG',
+]
+
+
+def update_membership(apps, schema_editor):
+    User = apps.get_model('auth', 'User')
+    AuthGroup = apps.get_model('ligoauth', 'AuthGroup')
+
+    # Get access_managers group
+    group = AuthGroup.objects.get(name='access_managers')
+
+    # Clear membership
+    group.user_set.clear()
+
+    # Add users
+    for username in ACCESS_MANAGERS:
+        user, _ = User.objects.get_or_create(username=username)
+        group.user_set.add(user)
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('ligoauth', '0048_update_executives_membership'),
+    ]
+
+    operations = [
+        migrations.RunPython(update_membership, migrations.RunPython.noop),
+    ]