Migrate ArchivedProject content to ActiveProject (#2170)

As discussed in #2166, we would like to migrate content from the (now
deprecated) ArchivedProject model to the ActiveProject model.

This pull request:

1. Adds an Author to the "Failed demo software for parsing clinical
   notes" (slug="t2ASGLbIBoWaTJvPrM2A") fixture.

2. Creates a migration that migrates ArchivedProjects (and associated
   objects, like authors, references, logs, etc) to ActiveProjects
   with SubmissionStatus=ARCHIVED.

I have tested this fairly comprehensively and have not found any issues.

Note that files are not migrated. Files for archived projects will
remain in the pn-media/archived-projects subfolder. We should migrate
them to pn-media/active-projects later.

One way of testing is to:

1. Reset to c49b2a1 (e.g. with git
   reset c49b2a1 --hard) which is the
   pull request prior to the archived status being added to the
   ActiveProject object.

2. Create a bunch of interesting ArchivedProjects using the
   console. Add references, co-authors, copyediting history, etc.

3. Pull down the latest version of this branch.

4. Run the migrations to migrate ArchivedProjects to ActiveProjects.

5. Try viewing archived projects in the console, author project page, etc.

6. Change the submission status of the archived projects to
   unsubmitted (p.submission_status = 0) and save the change.

7. Check whether the now-active projects are correctly populated in
   the author submission system. You should find that all pages work
   correctly, except http://localhost:8000/projects/SLUG/files/, which
   will raise a FileNotFoundError as expected.

physionet-django/project/fixtures/demo-project.json

@@ -339,6 +339,26 @@
     "creation_date": "2020-04-10T16:08:49.337Z"
   }
 },
+{
+  "model": "project.author",
+  "pk": 14,
+  "fields": {
+    "user": [
+      "admin"
+    ],
+    "display_order": 1,
+    "is_submitting": true,
+    "is_corresponding": true,
+    "approval_datetime": null,
+    "content_type": [
+      "project",
+      "activeproject"
+    ],
+    "object_id": 9,
+    "corresponding_email": 209,
+    "creation_date": "2020-04-10T16:08:49.337Z"
+  }
+},
 {
   "model": "project.publishedauthor",
   "pk": 1,

physionet-django/project/migrations/0074_migrate_archived_to_active.py

@@ -0,0 +1,69 @@
+from django.db import migrations
+from django.contrib.contenttypes.models import ContentType
+from project.models import SubmissionStatus
+
+
+def migrate_archived_to_active(apps, schema_editor):
+    """
+    Copy all ArchivedProject data to the ActiveProject model.
+    """
+    AnonymousAccess = apps.get_model("project", "AnonymousAccess")
+    ActiveProject = apps.get_model("project", "ActiveProject")
+    ArchivedProject = apps.get_model("project", "ArchivedProject")
+    Author = apps.get_model("project", "Author")
+    CopyeditLog = apps.get_model("project", "CopyeditLog")
+    EditLog = apps.get_model("project", "EditLog")
+    Log = apps.get_model("project", "Log")
+    Publication = apps.get_model("project", "Publication")
+    Reference = apps.get_model("project", "Reference")
+    Topic = apps.get_model("project", "Topic")
+    UploadedDocument = apps.get_model("project", "UploadedDocument")
+
+    # Get content types for both models
+    archived_project_type = ContentType.objects.get_for_model(ArchivedProject)
+    active_project_type = ContentType.objects.get_for_model(ActiveProject)
+
+    for archived_project in ArchivedProject.objects.all():
+        # Create a new ActiveProject instance
+        active_project = ActiveProject(
+            submission_status=SubmissionStatus.ARCHIVED.value,
+        )
+        for attr in [f.name for f in ArchivedProject._meta.fields]:
+            if attr != 'id':
+                setattr(active_project, attr, getattr(archived_project, attr))
+        active_project.save()
+
+        # Migrate references, authors, logs, etc from ArchivedProject to ActiveProject
+        for model in [Reference,
+                      Author,
+                      Log,
+                      AnonymousAccess,
+                      Topic,
+                      Publication,
+                      UploadedDocument,
+                      EditLog,
+                      CopyeditLog]:
+            items = model.objects.filter(
+                content_type_id=archived_project_type.id, object_id=archived_project.id
+            )
+            for item in items:
+                item.content_type_id = active_project_type.id
+                item.object_id = active_project.id
+                item.save()
+
+        # Delete the archived project
+        archived_project.delete()
+
+
+def migrate_backward(apps, schema_editor):
+    pass
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("project", "0073_activeproject_archive_datetime"),
+    ]
+
+    operations = [
+        migrations.RunPython(migrate_archived_to_active, migrate_backward),
+    ]