Generate migrations

Author: couchersbot[bot]

app/backend/src/couchers/migrations/versions/0149_backend_feature_add_dismissable_.py

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+"""Backend/feature: Add dismissable dashboard reminders
+
+Revision ID: 0149
+Revises: 0148
+Create Date: 2026-05-10 02:06:58.881909
+
+"""
+
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision = "0149"
+down_revision = "0148"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "reminder_dismissals",
+        sa.Column("id", sa.BigInteger(), nullable=False),
+        sa.Column("user_id", sa.BigInteger(), nullable=False),
+        sa.Column(
+            "reminder_type",
+            sa.Enum(
+                "complete_profile",
+                "complete_verification",
+                "respond_to_host_request",
+                "write_reference",
+                name="remindertype",
+            ),
+            nullable=False,
+        ),
+        sa.Column("host_request_id", sa.BigInteger(), nullable=True),
+        sa.Column("dismissed_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=False),
+        sa.CheckConstraint(
+            "(reminder_type IN ('complete_profile', 'complete_verification') AND host_request_id IS NULL) OR (reminder_type IN ('respond_to_host_request', 'write_reference') AND host_request_id IS NOT NULL)",
+            name=op.f("ck_reminder_dismissals_entity_consistency"),
+        ),
+        sa.ForeignKeyConstraint(
+            ["host_request_id"], ["host_requests.id"], name=op.f("fk_reminder_dismissals_host_request_id_host_requests")
+        ),
+        sa.ForeignKeyConstraint(["user_id"], ["users.id"], name=op.f("fk_reminder_dismissals_user_id_users")),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_reminder_dismissals")),
+    )
+    op.create_index(
+        "ix_reminder_dismissals_entity_unique",
+        "reminder_dismissals",
+        ["user_id", "reminder_type", "host_request_id"],
+        unique=True,
+        postgresql_where=sa.text("host_request_id IS NOT NULL"),
+    )
+    op.create_index(
+        "ix_reminder_dismissals_global_unique",
+        "reminder_dismissals",
+        ["user_id", "reminder_type"],
+        unique=True,
+        postgresql_where=sa.text("host_request_id IS NULL"),
+    )
+    op.create_index(
+        "ix_reminder_dismissals_user_type", "reminder_dismissals", ["user_id", "reminder_type"], unique=False
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("ix_reminder_dismissals_user_type", table_name="reminder_dismissals")
+    op.drop_index(
+        "ix_reminder_dismissals_global_unique",
+        table_name="reminder_dismissals",
+        postgresql_where=sa.text("host_request_id IS NULL"),
+    )
+    op.drop_index(
+        "ix_reminder_dismissals_entity_unique",
+        table_name="reminder_dismissals",
+        postgresql_where=sa.text("host_request_id IS NOT NULL"),
+    )
+    op.drop_table("reminder_dismissals")