Add historic Translation data to ActionLog (mozilla#3299)

Also: add ability to override ActionLog.created_at value on instance creation

pontoon/actionlog/migrations/0004_alter_actionlog_created_at.py

@@ -0,0 +1,19 @@
+# Generated by Django 4.2.11 on 2024-09-24 17:56
+
+import django.utils.timezone
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("actionlog", "0003_existing_pretranslation_action"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="actionlog",
+            name="created_at",
+            field=models.DateTimeField(default=django.utils.timezone.now),
+        ),
+    ]

pontoon/actionlog/migrations/0005_migrate_old_translations_to_actionlog.py

@@ -0,0 +1,106 @@
+# Generated by Django 4.2.11 on 2024-09-24 17:56
+
+import datetime
+
+from django.db import migrations
+
+
+def migrate_translations_to_actionlog(apps, schema_editor):
+    Translation = apps.get_model("base", "Translation")
+    ActionLog = apps.get_model("actionlog", "ActionLog")
+
+    translation_info = {
+        "date": (
+            "translation:created",
+            "user",
+        ),
+        "approved_date": (
+            "translation:approved",
+            "approved_user",
+        ),
+        "unapproved_date": (
+            "translation:unapproved",
+            "unapproved_user",
+        ),
+        "rejected_date": (
+            "translation:rejected",
+            "rejected_user",
+        ),
+        "unrejected_date": (
+            "translation:unrejected",
+            "unrejected_user",
+        ),
+    }
+
+    # Timestamp of the first Translation created after the introduction of ActionLog
+    end_date = datetime.datetime(
+        2020, 1, 7, 9, 25, 11, 829125, tzinfo=datetime.timezone.utc
+    )
+
+    actions_to_log = []
+
+    BATCH_SIZE = 10000
+
+    # To improve performance:
+    #  - Exclude translations that don't have any user set
+    #  - Filter only the necessary fields
+    translations = (
+        Translation.objects.filter(date__lt=end_date)
+        .exclude(
+            user=None,
+            approved_user=None,
+            unapproved_user=None,
+            rejected_user=None,
+            unrejected_user=None,
+        )
+        .values(
+            "id",
+            "date",
+            "approved_date",
+            "unapproved_date",
+            "rejected_date",
+            "unrejected_date",
+            "user",
+            "approved_user",
+            "unapproved_user",
+            "rejected_user",
+            "unrejected_user",
+        )
+    ).iterator(chunk_size=BATCH_SIZE)
+
+    for translation in translations:
+        for action_date, (action_type, action_user) in translation_info.items():
+            date = translation.get(action_date)
+            user_id = translation.get(action_user)
+
+            # Do not log Approve actions for self-approved translations
+            if action_type == "translation:approved" and date == translation.get(
+                "date"
+            ):
+                continue
+
+            # Only log actions if the date is before the end_date, and user_id is set
+            if date is not None and date < end_date and user_id is not None:
+                actions_to_log.append(
+                    ActionLog(
+                        action_type=action_type,
+                        created_at=date,
+                        performed_by_id=user_id,
+                        translation_id=translation.get("id"),
+                    )
+                )
+
+    ActionLog.objects.bulk_create(actions_to_log, batch_size=BATCH_SIZE)
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("actionlog", "0004_alter_actionlog_created_at"),
+    ]
+
+    operations = [
+        migrations.RunPython(
+            code=migrate_translations_to_actionlog,
+            reverse_code=migrations.RunPython.noop,
+        ),
+    ]

pontoon/actionlog/models.py

@@ -1,5 +1,6 @@
 from django.core.exceptions import ValidationError
 from django.db import models
+from django.utils import timezone
 
 
 class ActionLog(models.Model):
@@ -20,7 +21,7 @@ class ActionType(models.TextChoices):
         COMMENT_ADDED = "comment:added", "Comment added"
 
     action_type = models.CharField(max_length=50, choices=ActionType.choices)
-    created_at = models.DateTimeField(auto_now_add=True)
+    created_at = models.DateTimeField(default=timezone.now)
     performed_by = models.ForeignKey(
         "auth.User", models.SET_NULL, related_name="actions", null=True
     )