Added migrations for referrals

Author: theowni

app/migrations/versions/f23331e973f8_added_referrals.py

@@ -0,0 +1,75 @@
+"""Added referrals
+
+Revision ID: f23331e973f8
+Revises: 4a8c6c4dc451
+Create Date: 2025-10-25 22:36:06.154882
+
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision: str = "f23331e973f8"
+down_revision: Union[str, None] = "4a8c6c4dc451"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table(
+        "discount_coupons",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("user_id", sa.Integer(), nullable=True),
+        sa.Column("referrer_user_id", sa.Integer(), nullable=True),
+        sa.Column("discount_percentage", sa.Integer(), nullable=True),
+        sa.Column("used", sa.Boolean(), nullable=True),
+        sa.Column("created_at", sa.DateTime(), nullable=True),
+        sa.Column("used_at", sa.DateTime(), nullable=True),
+        sa.ForeignKeyConstraint(
+            ["referrer_user_id"],
+            ["users.id"],
+        ),
+        sa.ForeignKeyConstraint(
+            ["user_id"],
+            ["users.id"],
+        ),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    op.create_index(
+        op.f("ix_discount_coupons_id"), "discount_coupons", ["id"], unique=False
+    )
+    op.create_index(
+        op.f("ix_discount_coupons_referrer_user_id"),
+        "discount_coupons",
+        ["referrer_user_id"],
+        unique=False,
+    )
+    op.create_index(
+        op.f("ix_discount_coupons_user_id"),
+        "discount_coupons",
+        ["user_id"],
+        unique=False,
+    )
+    op.add_column("orders", sa.Column("final_price", sa.Float(), nullable=True))
+    op.add_column("users", sa.Column("referral_code", sa.String(), nullable=True))
+    op.create_index(
+        op.f("ix_users_referral_code"), "users", ["referral_code"], unique=True
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f("ix_users_referral_code"), table_name="users")
+    op.drop_column("users", "referral_code")
+    op.drop_column("orders", "final_price")
+    op.drop_index(op.f("ix_discount_coupons_user_id"), table_name="discount_coupons")
+    op.drop_index(
+        op.f("ix_discount_coupons_referrer_user_id"), table_name="discount_coupons"
+    )
+    op.drop_index(op.f("ix_discount_coupons_id"), table_name="discount_coupons")
+    op.drop_table("discount_coupons")
+    # ### end Alembic commands ###