Files
gh-christianlouis-docuelevate/migrations/versions/003_add_deduplication_support.py
T
Christian Krakau-Louis 4c11cfd6dd feat(deduplication): implement configurable duplicate file detection
- Add enable_deduplication and show_deduplication_step config options
- Rename hash_file step to check_for_duplicates
- Make deduplication step conditional based on configuration
- Add is_duplicate and duplicate_of_id fields to FileRecord model
- Create database migration for new deduplication fields
- Update process_document task to log deduplication results
- Update step visualization to show/hide step based on config
- Update status calculations to include deduplication step conditionally
- Default: deduplication enabled, step displayed
- Can be configured to hide from UI while still processing
2026-02-12 02:38:00 +01:00

46 lines
1.5 KiB
Python

"""Add deduplication support with is_duplicate and duplicate_of_id fields
Revision ID: 003_add_deduplication_support
Revises: 002_add_file_paths
Create Date: 2026-02-12
"""
from typing import Sequence, Union
import sqlalchemy as sa
from alembic import op
# revision identifiers, used by Alembic.
revision: str = "003_add_deduplication_support"
down_revision: Union[str, None] = "002_add_file_paths"
depends_on: Union[str, None] = None
def upgrade() -> None:
"""Add is_duplicate and duplicate_of_id columns to files table."""
# Add is_duplicate column with default False
op.add_column("files", sa.Column("is_duplicate", sa.Boolean(), nullable=False, server_default="0"))
# Add duplicate_of_id column as foreign key to self
op.add_column("files", sa.Column("duplicate_of_id", sa.Integer(), nullable=True))
# Create index on is_duplicate for efficient filtering
op.create_index("ix_files_is_duplicate", "files", ["is_duplicate"])
# Create foreign key relationship
op.create_foreign_key("fk_files_duplicate_of_id", "files", "files", ["duplicate_of_id"], ["id"])
def downgrade() -> None:
"""Remove is_duplicate and duplicate_of_id columns from files table."""
# Drop foreign key
op.drop_constraint("fk_files_duplicate_of_id", "files", type_="foreignkey")
# Drop index
op.drop_index("ix_files_is_duplicate", table_name="files")
# Drop columns
op.drop_column("files", "duplicate_of_id")
op.drop_column("files", "is_duplicate")