"""initial migration Revision ID: 01initial Revises: Create Date: 2023-11-12 12:00:00.000000 """ from typing import Sequence, Union from alembic import op import sqlalchemy as sa # revision identifiers, used by Alembic. revision: str = '01initial' down_revision: Union[str, None] = None branch_labels: Union[str, Sequence[str], None] = None depends_on: Union[str, Sequence[str], None] = None def upgrade() -> None: # Create the user table op.create_table( 'user', sa.Column('id', sa.Integer(), nullable=False), sa.Column('email', sa.String(), nullable=False), sa.Column('username', sa.String(), nullable=False), sa.Column('hashed_password', sa.String(), nullable=False), sa.Column('full_name', sa.String(), nullable=True), sa.Column('is_active', sa.Boolean(), nullable=True), sa.Column('is_superuser', sa.Boolean(), nullable=True), sa.Column('created_at', sa.DateTime(), nullable=True), sa.Column('updated_at', sa.DateTime(), nullable=True), sa.PrimaryKeyConstraint('id'), sa.UniqueConstraint('email'), sa.UniqueConstraint('username') ) op.create_index(op.f('ix_user_email'), 'user', ['email'], unique=True) op.create_index(op.f('ix_user_id'), 'user', ['id'], unique=False) op.create_index(op.f('ix_user_username'), 'user', ['username'], unique=True) # Create the category table op.create_table( 'category', sa.Column('id', sa.Integer(), nullable=False), sa.Column('name', sa.String(), nullable=False), sa.Column('description', sa.Text(), nullable=True), sa.Column('created_at', sa.DateTime(), nullable=True), sa.Column('updated_at', sa.DateTime(), nullable=True), sa.PrimaryKeyConstraint('id') ) op.create_index(op.f('ix_category_id'), 'category', ['id'], unique=False) op.create_index(op.f('ix_category_name'), 'category', ['name'], unique=False) # Create the supplier table op.create_table( 'supplier', sa.Column('id', sa.Integer(), nullable=False), sa.Column('name', sa.String(), nullable=False), sa.Column('contact_name', sa.String(), nullable=True), sa.Column('email', sa.String(), nullable=True), sa.Column('phone', sa.String(), nullable=True), sa.Column('address', sa.Text(), nullable=True), sa.Column('created_at', sa.DateTime(), nullable=True), sa.Column('updated_at', sa.DateTime(), nullable=True), sa.PrimaryKeyConstraint('id') ) op.create_index(op.f('ix_supplier_id'), 'supplier', ['id'], unique=False) op.create_index(op.f('ix_supplier_name'), 'supplier', ['name'], unique=False) # Create the product table op.create_table( 'product', sa.Column('id', sa.Integer(), nullable=False), sa.Column('name', sa.String(), nullable=False), sa.Column('description', sa.Text(), nullable=True), sa.Column('sku', sa.String(), nullable=False), sa.Column('barcode', sa.String(), nullable=True), sa.Column('quantity', sa.Integer(), nullable=True), sa.Column('unit_price', sa.Float(), nullable=False), sa.Column('cost_price', sa.Float(), nullable=True), sa.Column('is_active', sa.Boolean(), nullable=True), sa.Column('min_stock_level', sa.Integer(), nullable=True), sa.Column('max_stock_level', sa.Integer(), nullable=True), sa.Column('category_id', sa.Integer(), nullable=True), sa.Column('supplier_id', sa.Integer(), nullable=True), sa.Column('created_at', sa.DateTime(), nullable=True), sa.Column('updated_at', sa.DateTime(), nullable=True), sa.ForeignKeyConstraint(['category_id'], ['category.id'], ), sa.ForeignKeyConstraint(['supplier_id'], ['supplier.id'], ), sa.PrimaryKeyConstraint('id'), sa.UniqueConstraint('barcode'), sa.UniqueConstraint('sku') ) op.create_index(op.f('ix_product_barcode'), 'product', ['barcode'], unique=True) op.create_index(op.f('ix_product_id'), 'product', ['id'], unique=False) op.create_index(op.f('ix_product_name'), 'product', ['name'], unique=False) op.create_index(op.f('ix_product_sku'), 'product', ['sku'], unique=True) # Define TransactionType enum for SQLAlchemy transaction_type = sa.Enum('purchase', 'sale', 'adjustment', 'return', 'transfer', name='transactiontype') transaction_type.create(op.get_bind()) # Create the inventory_transaction table op.create_table( 'inventory_transaction', sa.Column('id', sa.Integer(), nullable=False), sa.Column('transaction_type', transaction_type, nullable=False), sa.Column('quantity', sa.Integer(), nullable=False), sa.Column('unit_price', sa.Float(), nullable=True), sa.Column('transaction_date', sa.DateTime(), nullable=True), sa.Column('notes', sa.Text(), nullable=True), sa.Column('reference_number', sa.String(), nullable=True), sa.Column('product_id', sa.Integer(), nullable=False), sa.Column('user_id', sa.Integer(), nullable=False), sa.Column('created_at', sa.DateTime(), nullable=True), sa.Column('updated_at', sa.DateTime(), nullable=True), sa.ForeignKeyConstraint(['product_id'], ['product.id'], ), sa.ForeignKeyConstraint(['user_id'], ['user.id'], ), sa.PrimaryKeyConstraint('id') ) op.create_index(op.f('ix_inventory_transaction_id'), 'inventory_transaction', ['id'], unique=False) def downgrade() -> None: # Drop tables in reverse order op.drop_index(op.f('ix_inventory_transaction_id'), table_name='inventory_transaction') op.drop_table('inventory_transaction') # Drop TransactionType enum sa.Enum(name='transactiontype').drop(op.get_bind()) op.drop_index(op.f('ix_product_sku'), table_name='product') op.drop_index(op.f('ix_product_name'), table_name='product') op.drop_index(op.f('ix_product_id'), table_name='product') op.drop_index(op.f('ix_product_barcode'), table_name='product') op.drop_table('product') op.drop_index(op.f('ix_supplier_name'), table_name='supplier') op.drop_index(op.f('ix_supplier_id'), table_name='supplier') op.drop_table('supplier') op.drop_index(op.f('ix_category_name'), table_name='category') op.drop_index(op.f('ix_category_id'), table_name='category') op.drop_table('category') op.drop_index(op.f('ix_user_username'), table_name='user') op.drop_index(op.f('ix_user_id'), table_name='user') op.drop_index(op.f('ix_user_email'), table_name='user') op.drop_table('user')