Add DB models for TaxRate, TaxRateComponent

corepos/db/office_op/model.py

@@ -200,6 +200,41 @@ class VendorContact(Base):
     notes = sa.Column(sa.Text(), nullable=True)
 
 
+class TaxRate(Base):
+    """
+    Represents a tax rate.  Note that this may be a "combo" of various local
+    tax rates / levels.
+    """
+    __tablename__ = 'taxrates'
+
+    id = sa.Column(sa.Integer(), primary_key=True, autoincrement=False, nullable=False)
+
+    rate = sa.Column(sa.Float(), nullable=True)
+
+    description = sa.Column(sa.String(length=50), nullable=True)
+
+    sales_code = sa.Column('salesCode', sa.Integer(), nullable=True)
+
+
+class TaxRateComponent(Base):
+    """
+    Represents a "component" of a tax rate.
+    """
+    __tablename__ = 'TaxRateComponents'
+    __table_args__ = (
+        sa.ForeignKeyConstraint(['taxRateID'], ['taxrates.id']),
+    )
+
+    id = sa.Column(sa.Integer(), primary_key=True, autoincrement=True, nullable=False)
+
+    tax_rate_id = sa.Column('taxRateID', sa.Integer())
+    tax_rate = orm.relationship(TaxRate, backref='components')
+
+    rate = sa.Column(sa.Float(), nullable=True)
+
+    description = sa.Column(sa.String(length=50), nullable=True)
+
+
 class Product(Base):
     """
     Represents a product, purchased and/or sold by the organization.
@@ -207,6 +242,7 @@ class Product(Base):
     __tablename__ = 'products'
     __table_args__ = (
         sa.ForeignKeyConstraint(['department'], ['departments.dept_no']),
+        sa.ForeignKeyConstraint(['tax'], ['taxrates.id']),
     )
 
     id = sa.Column(sa.Integer(), primary_key=True, autoincrement=True, nullable=False)
@@ -243,7 +279,8 @@ class Product(Base):
 
     size = sa.Column(sa.String(length=9), nullable=True)
 
-    tax = sa.Column(sa.SmallInteger(), nullable=True)
+    tax_rate_id = sa.Column('tax', sa.SmallInteger(), nullable=True)
+    tax_rate = orm.relationship(TaxRate)
 
     foodstamp = sa.Column(sa.Boolean(), nullable=True)