06/11 Update Inspection result will include GPS

migrations/versions/phase25_inspection_gps.py

@@ -0,0 +1,36 @@
+"""phase25 — add GPS coordinates to inspections
+
+Adds submit_latitude and submit_longitude columns to the inspections table.
+Populated at web submission time via browser Geolocation API.
+Null for all existing inspections and mobile submissions (handled separately).
+"""
+
+import sqlalchemy as sa
+from alembic import op
+
+revision      = 'phase25_inspection_gps'
+down_revision = 'phase24_notify_defaults'
+branch_labels = None
+depends_on    = None
+
+
+def upgrade():
+    conn = op.get_bind()
+
+    has_lat = conn.execute(sa.text(
+        "SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS "
+        "WHERE TABLE_SCHEMA = DATABASE() "
+        "  AND TABLE_NAME = 'inspections' "
+        "  AND COLUMN_NAME = 'submit_latitude'"
+    )).scalar()
+
+    if not has_lat:
+        op.add_column('inspections',
+            sa.Column('submit_latitude', sa.Numeric(10, 7), nullable=True))
+        op.add_column('inspections',
+            sa.Column('submit_longitude', sa.Numeric(10, 7), nullable=True))
+
+
+def downgrade():
+    op.drop_column('inspections', 'submit_longitude')
+    op.drop_column('inspections', 'submit_latitude')