mealie/alembic/versions/2023-04-13-06.47.04_b3dbb554ba53_postgres_fuzzy_search.py
2024-09-16 13:52:12 +00:00

86 lines
2.3 KiB
Python

"""postgres fuzzy search
Revision ID: b3dbb554ba53
Revises: 38514b39a824
Create Date: 2023-04-13 06:47:04.617131
"""
from alembic import op
# revision identifiers, used by Alembic.
revision = "b3dbb554ba53"
down_revision = "38514b39a824"
branch_labels: str | tuple[str, ...] | None = None
depends_on: str | tuple[str, ...] | None = None
def get_db_type():
return op.get_context().dialect.name
def setup_postgres_trigrams():
op.execute("CREATE EXTENSION IF NOT EXISTS pg_trgm;")
op.create_index(
"ix_recipes_name_normalized_gin",
table_name="recipes",
columns=["name_normalized"],
unique=False,
postgresql_using="gin",
postgresql_ops={
"name_normalized": "gin_trgm_ops",
},
)
op.create_index(
"ix_recipes_description_normalized_gin",
table_name="recipes",
columns=["description_normalized"],
unique=False,
postgresql_using="gin",
postgresql_ops={
"description_normalized": "gin_trgm_ops",
},
)
op.create_index(
"ix_recipes_ingredients_note_normalized_gin",
table_name="recipes_ingredients",
columns=["note_normalized"],
unique=False,
postgresql_using="gin",
postgresql_ops={
"note_normalized": "gin_trgm_ops",
},
)
op.create_index(
"ix_recipes_ingredients_original_text_normalized_gin",
table_name="recipes_ingredients",
columns=["original_text_normalized"],
unique=False,
postgresql_using="gin",
postgresql_ops={
"original_text_normalized": "gin_trgm_ops",
},
)
def remove_postgres_trigrams():
op.execute("DROP EXTENSION IF EXISTS pg_trgm;")
op.drop_index("ix_recipes_name_normalized_gin", table_name="recipe")
op.drop_index("ix_recipes_description_normalized_gin", table_name="recipe")
op.drop_index("ix_recipes_ingredients_note_normalized_gin", table_name="recipes_ingredients")
op.drop_index("ix_recipes_ingredients_original_text_normalized_gin", table_name="recipes_ingredients")
def upgrade():
if get_db_type() == "postgresql":
setup_postgres_trigrams()
else:
pass
def downgrade():
if get_db_type() == "postgres":
remove_postgres_trigrams()
else:
pass