# Generated by Django 5.1.3 on 2026-05-27 12:17 import django.db.models.deletion import uuid from django.conf import settings from django.db import migrations, models class Migration(migrations.Migration): dependencies = [ ("dms", "0004_phase5_acl_security"), ("organizations", "0001_initial"), ("tenants", "0001_initial"), migrations.swappable_dependency(settings.AUTH_USER_MODEL), ] operations = [ migrations.CreateModel( name="CheckoutSession", fields=[ ( "id", models.BigAutoField( auto_created=True, primary_key=True, serialize=False, verbose_name="ID" ), ), ( "created_at", models.DateTimeField( auto_now_add=True, db_index=True, verbose_name="created at" ), ), ("updated_at", models.DateTimeField(auto_now=True, verbose_name="updated at")), ( "public_id", models.UUIDField( db_index=True, default=uuid.uuid4, editable=False, unique=True, verbose_name="public id", ), ), ( "action", models.CharField( choices=[ ("checkout", "Check-out"), ("checkin", "Check-in"), ("force_release", "Force Release"), ("expired_release", "Expired Release"), ], db_index=True, max_length=20, verbose_name="action", ), ), ( "lock_token", models.UUIDField( help_text="Snapshot of the lock token at the time of this event.", verbose_name="lock token", ), ), ("notes", models.TextField(blank=True, default="", verbose_name="notes")), ( "actor", models.ForeignKey( blank=True, help_text="User who performed this action. May differ from the lock holder in FORCE_RELEASE scenarios.", null=True, on_delete=django.db.models.deletion.SET_NULL, related_name="dms_checkout_actions", to=settings.AUTH_USER_MODEL, verbose_name="actor", ), ), ( "created_by", models.ForeignKey( blank=True, editable=False, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name="+", to=settings.AUTH_USER_MODEL, verbose_name="created by", ), ), ( "document", models.ForeignKey( on_delete=django.db.models.deletion.CASCADE, related_name="checkout_events", to="dms.document", verbose_name="document", ), ), ( "lock_holder", models.ForeignKey( blank=True, help_text="User who held the lock at the time of this event.", null=True, on_delete=django.db.models.deletion.SET_NULL, related_name="dms_checkout_sessions", to=settings.AUTH_USER_MODEL, verbose_name="lock holder", ), ), ( "organization_node", models.ForeignKey( on_delete=django.db.models.deletion.PROTECT, related_name="+", to="organizations.organizationnode", verbose_name="organization node", ), ), ( "tenant", models.ForeignKey( on_delete=django.db.models.deletion.CASCADE, related_name="+", to="tenants.tenant", verbose_name="tenant", ), ), ( "updated_by", models.ForeignKey( blank=True, editable=False, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name="+", to=settings.AUTH_USER_MODEL, verbose_name="updated by", ), ), ( "version_created", models.ForeignKey( blank=True, help_text="DocumentVersion produced during this check-in (if any).", null=True, on_delete=django.db.models.deletion.SET_NULL, related_name="checkout_events", to="dms.documentversion", verbose_name="version created", ), ), ], options={ "verbose_name": "checkout session", "verbose_name_plural": "checkout sessions", "ordering": ("-created_at",), "indexes": [ models.Index(fields=["document", "action"], name="dms_checkout_doc_action_idx"), models.Index(fields=["lock_token"], name="dms_checkout_token_idx"), models.Index( fields=["tenant", "actor", "action"], name="dms_checkout_actor_idx" ), ], }, ), migrations.CreateModel( name="DocumentLock", fields=[ ( "id", models.BigAutoField( auto_created=True, primary_key=True, serialize=False, verbose_name="ID" ), ), ( "is_deleted", models.BooleanField(db_index=True, default=False, verbose_name="deleted"), ), ( "deleted_at", models.DateTimeField(blank=True, null=True, verbose_name="deleted at"), ), ( "created_at", models.DateTimeField( auto_now_add=True, db_index=True, verbose_name="created at" ), ), ("updated_at", models.DateTimeField(auto_now=True, verbose_name="updated at")), ( "public_id", models.UUIDField( db_index=True, default=uuid.uuid4, editable=False, unique=True, verbose_name="public id", ), ), ( "lock_token", models.UUIDField( default=uuid.uuid4, editable=False, help_text="Opaque token issued at checkout; must be echoed back at check-in.", unique=True, verbose_name="lock token", ), ), ( "expires_at", models.DateTimeField( blank=True, help_text="Null means the lock never auto-expires.", null=True, verbose_name="expires at", ), ), ( "is_active", models.BooleanField(db_index=True, default=True, verbose_name="is active"), ), ( "status", models.CharField( choices=[ ("active", "Active"), ("released", "Released"), ("expired", "Expired"), ("force_released", "Force Released"), ], db_index=True, default="active", max_length=20, verbose_name="status", ), ), ("notes", models.TextField(blank=True, default="", verbose_name="notes")), ( "created_by", models.ForeignKey( blank=True, editable=False, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name="+", to=settings.AUTH_USER_MODEL, verbose_name="created by", ), ), ( "deleted_by", models.ForeignKey( blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name="+", to=settings.AUTH_USER_MODEL, verbose_name="deleted by", ), ), ( "document", models.ForeignKey( on_delete=django.db.models.deletion.CASCADE, related_name="locks", to="dms.document", verbose_name="document", ), ), ( "locked_by", models.ForeignKey( null=True, on_delete=django.db.models.deletion.SET_NULL, related_name="dms_locks_held", to=settings.AUTH_USER_MODEL, verbose_name="locked by", ), ), ( "organization_node", models.ForeignKey( on_delete=django.db.models.deletion.PROTECT, related_name="+", to="organizations.organizationnode", verbose_name="organization node", ), ), ( "tenant", models.ForeignKey( on_delete=django.db.models.deletion.CASCADE, related_name="+", to="tenants.tenant", verbose_name="tenant", ), ), ( "updated_by", models.ForeignKey( blank=True, editable=False, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name="+", to=settings.AUTH_USER_MODEL, verbose_name="updated by", ), ), ], options={ "verbose_name": "document lock", "verbose_name_plural": "document locks", "ordering": ("-created_at",), "indexes": [ models.Index( fields=["document", "is_active", "is_deleted"], name="dms_doclock_doc_active_idx", ), models.Index( fields=["locked_by", "is_active", "is_deleted"], name="dms_doclock_user_active_idx", ), models.Index( fields=["tenant", "expires_at", "is_active"], name="dms_doclock_expires_idx" ), ], "constraints": [ models.UniqueConstraint( condition=models.Q(("is_active", True), ("is_deleted", False)), fields=("document",), name="dms_doclock_unique_active_per_document", ) ], }, ), migrations.CreateModel( name="VersionDiff", fields=[ ( "id", models.BigAutoField( auto_created=True, primary_key=True, serialize=False, verbose_name="ID" ), ), ( "is_deleted", models.BooleanField(db_index=True, default=False, verbose_name="deleted"), ), ( "deleted_at", models.DateTimeField(blank=True, null=True, verbose_name="deleted at"), ), ( "created_at", models.DateTimeField( auto_now_add=True, db_index=True, verbose_name="created at" ), ), ("updated_at", models.DateTimeField(auto_now=True, verbose_name="updated at")), ( "public_id", models.UUIDField( db_index=True, default=uuid.uuid4, editable=False, unique=True, verbose_name="public id", ), ), ( "diff_type", models.CharField( choices=[ ("content", "Content"), ("metadata", "Metadata"), ("full", "Full"), ], default="full", max_length=20, verbose_name="diff type", ), ), ( "status", models.CharField( choices=[("pending", "Pending"), ("ready", "Ready"), ("failed", "Failed")], db_index=True, default="pending", max_length=20, verbose_name="status", ), ), ( "diff_summary", models.TextField( blank=True, default="", help_text="Human-readable summary of changes, or error reason on FAILED.", verbose_name="diff summary", ), ), ( "diff_data", models.JSONField( blank=True, default=dict, help_text="Structured result from the diff backend. Format is backend-defined.", verbose_name="diff data", ), ), ( "created_by", models.ForeignKey( blank=True, editable=False, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name="+", to=settings.AUTH_USER_MODEL, verbose_name="created by", ), ), ( "deleted_by", models.ForeignKey( blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name="+", to=settings.AUTH_USER_MODEL, verbose_name="deleted by", ), ), ( "from_version", models.ForeignKey( on_delete=django.db.models.deletion.CASCADE, related_name="diffs_as_source", to="dms.documentversion", verbose_name="from version", ), ), ( "organization_node", models.ForeignKey( on_delete=django.db.models.deletion.PROTECT, related_name="+", to="organizations.organizationnode", verbose_name="organization node", ), ), ( "tenant", models.ForeignKey( on_delete=django.db.models.deletion.CASCADE, related_name="+", to="tenants.tenant", verbose_name="tenant", ), ), ( "to_version", models.ForeignKey( on_delete=django.db.models.deletion.CASCADE, related_name="diffs_as_target", to="dms.documentversion", verbose_name="to version", ), ), ( "updated_by", models.ForeignKey( blank=True, editable=False, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name="+", to=settings.AUTH_USER_MODEL, verbose_name="updated by", ), ), ], options={ "verbose_name": "version diff", "verbose_name_plural": "version diffs", "ordering": ("-created_at",), "indexes": [ models.Index( fields=["from_version", "to_version"], name="dms_versiondiff_versions_idx" ), models.Index( fields=["tenant", "status", "is_deleted"], name="dms_versiondiff_status_idx" ), ], "constraints": [ models.UniqueConstraint( condition=models.Q(("is_deleted", False)), fields=("from_version", "to_version", "diff_type"), name="dms_versiondiff_unique_per_versions_type", ) ], }, ), ]