add product variant model

Author: maplethorpej

.github/CODEOWNERS

@@ -0,0 +1 @@
+* @maplethorpej

.github/FUNDING.yml

@@ -0,0 +1,13 @@
+# These are supported funding model platforms
+
+github: [Packstack-Tech] # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2]
+patreon: packstack
+open_collective: # Replace with a single Open Collective username
+ko_fi: # Replace with a single Ko-fi username
+tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: # Replace with a single Liberapay username
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+lfx_crowdfunding: # Replace with a single LFX Crowdfunding project-name e.g., cloud-foundry
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

.gitignore

@@ -6,6 +6,9 @@ __pycache__/
 # C extensions
 *.so
 
+# Settings
+.vscode/
+
 # Distribution / packaging
 .Python
 build/

.vscode/settings.json

@@ -1,4 +1,3 @@
-import jwt
 import datetime
 import uuid
 
@@ -188,6 +187,16 @@ class Product(Base):
         'brand_id', 'name', name='_brand_product_uc'),)
 
 
+class ProductVariant(Base):
+    id = Column(Integer, primary_key=True, index=True)
+    product_id = Column(Integer, ForeignKey("product.id"), nullable=False)
+    name = Column(String(250), nullable=False)
+
+    # Ensure variant is unique per product
+    __table_args__ = (UniqueConstraint(
+        'name', 'product_id', name='uc_name_product_id'),)
+
+
 class PackItem(Base):
     pack_id = Column(Integer, ForeignKey("pack.id"), primary_key=True)
     item_id = Column(Integer, ForeignKey("item.id"), primary_key=True)