Upgrades to cost calculation methods

alembic/versions/cc9672a505f5_added_discount_table.py

@@ -0,0 +1,37 @@
+"""added discount table
+
+Revision ID: cc9672a505f5
+Revises: 00de69ad6eab
+Create Date: 2023-04-27 12:58:41.331563
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'cc9672a505f5'
+down_revision = '00de69ad6eab'
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('_discounts',
+    sa.Column('id', sa.INTEGER(), nullable=False),
+    sa.Column('kit_id', sa.INTEGER(), nullable=True),
+    sa.Column('client_id', sa.INTEGER(), nullable=True),
+    sa.Column('amount', sa.FLOAT(precision=2), nullable=True),
+    sa.ForeignKeyConstraint(['client_id'], ['_organizations.id'], name='fk_org_id', ondelete='SET NULL'),
+    sa.ForeignKeyConstraint(['kit_id'], ['_kits.id'], name='fk_kit_type_id', ondelete='SET NULL'),
+    sa.PrimaryKeyConstraint('id')
+    )
+    
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table('_discounts')
+    # ### end Alembic commands ###