feat: add configurable view-aware dashboards

src/govoplan_dashboard/backend/db/models.py

@@ -0,0 +1,79 @@
+from __future__ import annotations
+
+import uuid
+from typing import Any
+
+from sqlalchemy import Index, Integer, JSON, String, UniqueConstraint
+from sqlalchemy.orm import Mapped, mapped_column
+
+from govoplan_core.db.base import Base, TimestampMixin
+
+
+def new_uuid() -> str:
+    return str(uuid.uuid4())
+
+
+class DashboardLayout(Base, TimestampMixin):
+    __tablename__ = "dashboard_layouts"
+    __table_args__ = (
+        UniqueConstraint(
+            "tenant_id",
+            "account_id",
+            "context_key",
+            name="uq_dashboard_layouts_actor_context",
+        ),
+        Index(
+            "ix_dashboard_layouts_actor",
+            "tenant_id",
+            "account_id",
+        ),
+    )
+
+    id: Mapped[str] = mapped_column(
+        String(36),
+        primary_key=True,
+        default=new_uuid,
+    )
+    tenant_id: Mapped[str] = mapped_column(
+        String(36),
+        nullable=False,
+        index=True,
+    )
+    account_id: Mapped[str] = mapped_column(
+        String(255),
+        nullable=False,
+        index=True,
+    )
+    context_key: Mapped[str] = mapped_column(
+        String(300),
+        nullable=False,
+        index=True,
+    )
+    view_id: Mapped[str | None] = mapped_column(
+        String(255),
+        nullable=True,
+        index=True,
+    )
+    layout_version: Mapped[int] = mapped_column(
+        Integer,
+        default=1,
+        nullable=False,
+    )
+    revision: Mapped[int] = mapped_column(
+        Integer,
+        default=1,
+        nullable=False,
+    )
+    placements: Mapped[list[dict[str, Any]]] = mapped_column(
+        JSON,
+        default=list,
+        nullable=False,
+    )
+    known_widget_ids: Mapped[list[str]] = mapped_column(
+        JSON,
+        default=list,
+        nullable=False,
+    )
+
+
+__all__ = ["DashboardLayout", "new_uuid"]