Adds category selector column

This column indicates where has the category came from.

alembic/versions/6863dda76ea2_category_selector.py

@@ -0,0 +1,54 @@
+"""Category selector
+
+Revision ID: 6863dda76ea2
+Revises: 83f4c9837f6e
+Create Date: 2022-12-08 00:56:59.032641+00:00
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = "6863dda76ea2"
+down_revision = "83f4c9837f6e"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table(
+        "categories_selector",
+        sa.Column("id", sa.BigInteger(), nullable=False),
+        sa.Column(
+            "selector",
+            sa.Enum(
+                "unknown",
+                "nullifier",
+                "vacations",
+                "rules",
+                "algorithm",
+                "manual",
+                name="selector",
+                schema="transactions",
+                inherit_schema=True,
+            ),
+            nullable=False,
+        ),
+        sa.ForeignKeyConstraint(
+            ["id"],
+            ["transactions.categorized.id"],
+            name=op.f("fk_categories_selector_id_categorized"),
+            ondelete="CASCADE",
+        ),
+        sa.PrimaryKeyConstraint("id", name=op.f("pk_categories_selector")),
+        schema="transactions",
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_table("categories_selector", schema="transactions")
+    # ### end Alembic commands ###

pfbudget/db/model.py

@@ -121,11 +121,18 @@ class TransactionCategory(Base):
     name: Mapped[str] = mapped_column(ForeignKey(Category.name))
 
     original: Mapped[Transaction] = relationship(back_populates="category")
+    selector: Mapped[CategorySelector] = relationship(back_populates="category")
 
     def __repr__(self) -> str:
         return f"Category({self.name})"
 
 
+catfk = Annotated[
+    int,
+    mapped_column(BigInteger, ForeignKey(TransactionCategory.id, ondelete="CASCADE")),
+]
+
+
 class Note(Base):
     __tablename__ = "notes"
 
@@ -165,3 +172,27 @@ class CategoryRule(Base):
         ForeignKey(Category.name, ondelete="CASCADE"), primary_key=True
     )
     rule: Mapped[str] = mapped_column(primary_key=True)
+
+
+class Selector(enum.Enum):
+    unknown = enum.auto()
+    nullifier = enum.auto()
+    vacations = enum.auto()
+    rules = enum.auto()
+    algorithm = enum.auto()
+    manual = enum.auto()
+
+
+categoryselector = Annotated[
+    Selector,
+    mapped_column(Enum(Selector, inherit_schema=True), default=Selector.unknown),
+]
+
+
+class CategorySelector(Base):
+    __tablename__ = "categories_selector"
+
+    id: Mapped[catfk] = mapped_column(primary_key=True)
+    selector: Mapped[categoryselector]
+
+    category: Mapped[TransactionCategory] = relationship(back_populates="selector")