Per-type board rows with shared categories, a network device IP field, and two dark-mode dialogs

plugins/notifications/migrations/versions/0004_boardcategory.py

@@ -0,0 +1,47 @@
+"""Add notificationtypes.boardcategory (shared heading on the shopfloor board).
+
+The board grouped cards by display style alone, so every type set to grid landed
+inside the Recertification row and every carousel type inside Recognition's,
+under a heading that named someone else's type. Each type now gets a row of its
+own; this column is the opt-in for the other direction - several types that
+belong together (Change, Awareness, Incident) share one row under a category
+name instead of taking three.
+
+Idempotent; downgrade drops the column.
+
+Revision ID: notifications0004category
+Revises: notifications0003grace
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+revision = 'notifications0004category'
+down_revision = 'notifications0003grace'
+branch_labels = None
+depends_on = None
+
+_TABLE = 'notificationtypes'
+_COLUMN = 'boardcategory'
+
+
+def _column_names(insp, table):
+    return {c['name'] for c in insp.get_columns(table)}
+
+
+def upgrade():
+    bind = op.get_bind()
+    insp = sa.inspect(bind)
+    if _TABLE not in insp.get_table_names():
+        return
+    if _COLUMN not in _column_names(insp, _TABLE):
+        op.add_column(_TABLE, sa.Column(_COLUMN, sa.String(50), nullable=True))
+
+
+def downgrade():
+    bind = op.get_bind()
+    insp = sa.inspect(bind)
+    if _TABLE not in insp.get_table_names():
+        return
+    if _COLUMN in _column_names(insp, _TABLE):
+        op.drop_column(_TABLE, _COLUMN)