Saved layouts feature

server/app/migration.py

@@ -558,6 +558,72 @@ def _migration_22(conn) -> None:
     conn.execute(text("ALTER TABLE text_widget_configs ADD COLUMN font_family TEXT NOT NULL DEFAULT 'sans'"))
 
 
+def _migration_23(conn) -> None:
+    """New feature: named, user-owned saved layouts (see models.
+    SavedLayout/SavedLayoutWidget/SavedLayoutSource/
+    SavedLayoutButtonAction, routers/api_layouts.py) -- a snapshot of a
+    frame's widget arrangement a user can capture and later apply to any
+    frame they control whose grid matches, instead of manually rebuilding
+    it widget by widget.
+
+    Raw CREATE TABLE, not Base.metadata.create_all, same reasoning as
+    migration 20/21's own comments: create_all always reflects models.py's
+    CURRENT shape, so replaying the full chain on an old database could
+    collide with a later migration's ALTER TABLE on one of these same
+    tables."""
+    conn.execute(text(
+        "CREATE TABLE saved_layouts ("
+        "id INTEGER PRIMARY KEY, "
+        "user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE, "
+        "name TEXT NOT NULL, "
+        "cols INTEGER NOT NULL, "
+        "rows INTEGER NOT NULL, "
+        "created_at REAL NOT NULL DEFAULT 0.0, "
+        "updated_at REAL NOT NULL DEFAULT 0.0)"
+    ))
+    conn.execute(text(
+        "CREATE UNIQUE INDEX ix_saved_layouts_user_name ON saved_layouts (user_id, name)"
+    ))
+    conn.execute(text(
+        "CREATE TABLE saved_layout_widgets ("
+        "id INTEGER PRIMARY KEY, "
+        "saved_layout_id INTEGER NOT NULL REFERENCES saved_layouts(id) ON DELETE CASCADE, "
+        "widget_type TEXT NOT NULL, "
+        "x INTEGER NOT NULL, y INTEGER NOT NULL, w INTEGER NOT NULL, h INTEGER NOT NULL, "
+        "sort_order INTEGER NOT NULL DEFAULT 0, "
+        "config TEXT NOT NULL DEFAULT '{}', "
+        "image BLOB)"
+    ))
+    conn.execute(text(
+        "CREATE INDEX ix_saved_layout_widgets_layout ON saved_layout_widgets (saved_layout_id)"
+    ))
+    conn.execute(text(
+        "CREATE TABLE saved_layout_sources ("
+        "id INTEGER PRIMARY KEY, "
+        "saved_layout_widget_id INTEGER NOT NULL REFERENCES saved_layout_widgets(id) ON DELETE CASCADE, "
+        "kind TEXT NOT NULL, "
+        "user_id INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE, "
+        "calendar_key TEXT NOT NULL, "
+        "calendar_label TEXT NOT NULL DEFAULT '', "
+        "included INTEGER NOT NULL DEFAULT 1, "
+        "color_index INTEGER)"
+    ))
+    conn.execute(text(
+        "CREATE INDEX ix_saved_layout_sources_widget ON saved_layout_sources (saved_layout_widget_id)"
+    ))
+    conn.execute(text(
+        "CREATE TABLE saved_layout_button_actions ("
+        "id INTEGER PRIMARY KEY, "
+        "saved_layout_widget_id INTEGER NOT NULL REFERENCES saved_layout_widgets(id) ON DELETE CASCADE, "
+        "button TEXT NOT NULL, "
+        "action TEXT NOT NULL, "
+        "sort_order INTEGER NOT NULL DEFAULT 0)"
+    ))
+    conn.execute(text(
+        "CREATE INDEX ix_saved_layout_button_actions_widget ON saved_layout_button_actions (saved_layout_widget_id)"
+    ))
+
+
 MIGRATIONS = [
     (1, _migration_1),
     (2, _migration_2),
@@ -581,6 +647,7 @@ MIGRATIONS = [
     (20, _migration_20),
     (21, _migration_21),
     (22, _migration_22),
+    (23, _migration_23),
 ]