feat(models): change unique index

7project/backend/alembic/versions/2025_10_09_1514-390041bd839e_update_categories_unique.py

@@ -0,0 +1,34 @@
+"""update categories unique
+
+Revision ID: 390041bd839e
+Revises: 63e072f09836
+Create Date: 2025-10-09 15:14:31.557686
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision: str = '390041bd839e'
+down_revision: Union[str, Sequence[str], None] = '63e072f09836'
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    """Upgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index(op.f('name'), table_name='categories')
+    op.create_unique_constraint('uix_name_user_id', 'categories', ['name', 'user_id'])
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    """Downgrade schema."""
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_constraint('uix_name_user_id', 'categories', type_='unique')
+    op.create_index(op.f('name'), 'categories', ['name'], unique=True)
+    # ### end Alembic commands ###

7project/backend/app/models/categories.py

@@ -1,5 +1,5 @@
 from fastapi_users_db_sqlalchemy import GUID
-from sqlalchemy import Column, Integer, String, ForeignKey, Table
+from sqlalchemy import Column, Integer, String, ForeignKey, Table, UniqueConstraint
 from sqlalchemy.orm import relationship
 
 from app.core.base import Base
@@ -14,8 +14,11 @@ association_table = Table(
 
 class Category(Base):
     __tablename__ = "categories"
+    __table_args__ = (
+        UniqueConstraint("name", "user_id", name="uix_name_user_id"),
+    )
     id = Column(Integer, primary_key=True, autoincrement=True)
-    name = Column(String(length=100), unique=True, nullable=False)
+    name = Column(String(length=100), nullable=False)
     description = Column(String(length=255), nullable=True)
     user_id = Column(GUID, ForeignKey("user.id"), nullable=False)
     user = relationship("User", back_populates="categories")