Add migration for Lake

alembic/versions/20250326_065417_00f4ea37_create_lake.py

@@ -0,0 +1,34 @@
+"""create lakes table
+
+Revision ID: 1234567890ab
+Revises: 
+Create Date: 2023-05-25 10:00:00.000000
+
+"""
+from alembic import op
+import sqlalchemy as sa
+import uuid
+from sqlalchemy.sql import func
+
+# revision identifiers, used by Alembic.
+revision = '1234567890ab'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.create_table(
+        'lakes',
+        sa.Column('id', sa.String, primary_key=True, default=lambda: str(uuid.uuid4())),
+        sa.Column('name', sa.String, nullable=False, index=True),
+        sa.Column('area', sa.Float, nullable=False),
+        sa.Column('depth', sa.Float, nullable=False),
+        sa.Column('location', sa.String, nullable=False),
+        sa.Column('created_at', sa.DateTime, server_default=func.now()),
+        sa.Column('updated_at', sa.DateTime, server_default=func.now(), onupdate=func.now())
+    )
+
+
+def downgrade():
+    op.drop_table('lakes')