Add importer for tax rates from CORE

rattail_corepos/db/alembic/versions/673ff7088d35_add_corepos_tax.py

@@ -0,0 +1,51 @@
+# -*- coding: utf-8; -*-
+"""add corepos_tax
+
+Revision ID: 673ff7088d35
+Revises: 1f2e2f57c90b
+Create Date: 2023-10-06 21:01:01.105790
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '673ff7088d35'
+down_revision = '1f2e2f57c90b'
+branch_labels = None
+depends_on = None
+
+from alembic import op
+import sqlalchemy as sa
+import rattail.db.types
+
+
+
+def upgrade():
+
+    # corepos_tax
+    op.create_table('corepos_tax',
+                    sa.Column('uuid', sa.String(length=32), nullable=False),
+                    sa.Column('corepos_id', sa.Integer(), nullable=False),
+                    sa.ForeignKeyConstraint(['uuid'], ['tax.uuid'], name='corepos_tax_fk_tax'),
+                    sa.PrimaryKeyConstraint('uuid')
+                    )
+    op.create_table('corepos_tax_version',
+                    sa.Column('uuid', sa.String(length=32), autoincrement=False, nullable=False),
+                    sa.Column('corepos_id', sa.Integer(), autoincrement=False, nullable=True),
+                    sa.Column('transaction_id', sa.BigInteger(), autoincrement=False, nullable=False),
+                    sa.Column('end_transaction_id', sa.BigInteger(), nullable=True),
+                    sa.Column('operation_type', sa.SmallInteger(), nullable=False),
+                    sa.PrimaryKeyConstraint('uuid', 'transaction_id')
+                    )
+    op.create_index(op.f('ix_corepos_tax_version_end_transaction_id'), 'corepos_tax_version', ['end_transaction_id'], unique=False)
+    op.create_index(op.f('ix_corepos_tax_version_operation_type'), 'corepos_tax_version', ['operation_type'], unique=False)
+    op.create_index(op.f('ix_corepos_tax_version_transaction_id'), 'corepos_tax_version', ['transaction_id'], unique=False)
+
+
+def downgrade():
+
+    # corepos_tax
+    op.drop_index(op.f('ix_corepos_tax_version_transaction_id'), table_name='corepos_tax_version')
+    op.drop_index(op.f('ix_corepos_tax_version_operation_type'), table_name='corepos_tax_version')
+    op.drop_index(op.f('ix_corepos_tax_version_end_transaction_id'), table_name='corepos_tax_version')
+    op.drop_table('corepos_tax_version')
+    op.drop_table('corepos_tax')

rattail_corepos/db/model/__init__.py

@@ -24,7 +24,7 @@
 Database schema extensions for CORE-POS integration
 """
 
-from .stores import CoreStore, CoreTender
+from .stores import CoreStore, CoreTax, CoreTender
 from .people import (CorePerson, CoreEmployee,
                      CoreCustomer, CoreCustomerShopper,
                      CoreMember, CoreMemberEquityPayment)

rattail_corepos/db/model/stores.py

@@ -65,6 +65,41 @@ class CoreStore(model.Base):
 CoreStore.make_proxy(model.Store, '_corepos', 'corepos_id')
 
 
+class CoreTax(model.Base):
+    """
+    CORE-specific extensions to :class:`rattail:rattail.db.model.Tax`.
+    """
+    __tablename__ = 'corepos_tax'
+    __table_args__ = (
+        sa.ForeignKeyConstraint(['uuid'], ['tax.uuid'],
+                                name='corepos_tax_fk_tax'),
+    )
+    __versioned__ = {}
+
+    uuid = model.uuid_column(default=None)
+    tax = orm.relationship(
+        model.Tax,
+        doc="""
+        Reference to the actual tax record, which this one extends.
+        """,
+        backref=orm.backref(
+            '_corepos',
+            uselist=False,
+            cascade='all, delete-orphan',
+            doc="""
+            Reference to the CORE-POS extension record for this tax.
+            """))
+
+    corepos_id = sa.Column(sa.Integer(), nullable=False, doc="""
+    ``taxrates.id`` value for this tax, within CORE-POS.
+    """)
+
+    def __str__(self):
+        return str(self.tax)
+
+CoreTax.make_proxy(model.Tax, '_corepos', 'corepos_id')
+
+
 class CoreTender(model.Base):
     """
     CORE-specific extensions to :class:`rattail:rattail.db.model.Tender`.