Add migration for Message

alembic/versions/20250326_075235_b5cb6e73_create_message.py

@@ -0,0 +1,39 @@
+"""create messages table
+
+Revision ID: b2c3d4e5f6g7
+Revises: a1b2c3d4e5f6
+Create Date: 2023-01-01 13:00:00.000000
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.sql import func
+import uuid
+
+# revision identifiers
+revision = 'b2c3d4e5f6g7'
+down_revision = 'a1b2c3d4e5f6'
+branch_labels = None
+depends_on = None
+
+def upgrade():
+    op.create_table(
+        'messages',
+        sa.Column('id', sa.String(), primary_key=True, default=lambda: str(uuid.uuid4())),
+        sa.Column('sender_id', sa.String(), sa.ForeignKey('users.id', ondelete='CASCADE')),
+        sa.Column('receiver_id', sa.String(), sa.ForeignKey('users.id', ondelete='CASCADE')),
+        sa.Column('content', sa.Text(), nullable=False),
+        sa.Column('is_read', sa.Boolean(), default=False),
+        sa.Column('created_at', sa.DateTime(), server_default=sa.func.now()),
+        sa.Column('updated_at', sa.DateTime(), server_default=sa.func.now(), onupdate=sa.func.now()),
+        sa.PrimaryKeyConstraint('id')
+    )
+    
+    op.create_index('ix_messages_sender_id', 'messages', ['sender_id'])
+    op.create_index('ix_messages_receiver_id', 'messages', ['receiver_id'])
+    op.create_index('ix_messages_created_at', 'messages', ['created_at'])
+
+def downgrade():
+    op.drop_index('ix_messages_created_at', 'messages')
+    op.drop_index('ix_messages_receiver_id', 'messages')
+    op.drop_index('ix_messages_sender_id', 'messages')
+    op.drop_table('messages')