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Add cascade delete to NEWS_ITEM releated tables #286

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merged 2 commits into from
May 15, 2024
Merged

Add cascade delete to NEWS_ITEM releated tables #286

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da6c41e
Add cascade delete to NEWS_ITEM releated tables
May 14, 2024
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comment update
May 15, 2024
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66 changes: 66 additions & 0 deletions src/core/migrations/versions/57d784d699d9_news_item_cascade_delete.py
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"""add cascade delete to NEWS_ITEM releated tables

Revision ID: 57d784d699d9
Revises: f0a4860000ff
Create Date: 2024-05-07 10:06:33.066000

"""
from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision = '57d784d699d9'
down_revision = 'f0a4860000ff'
branch_labels = None
depends_on = None


def upgrade():
delete_previous()
# news_item_attribute
op.create_foreign_key('news_item_data_news_item_attribute_news_item_attribute_id_fkey', 'news_item_data_news_item_attribute', 'news_item_attribute', ['news_item_attribute_id'], ['id'], ondelete='CASCADE')
op.create_foreign_key('news_item_aggregate_news_item_attri_news_item_attribute_id_fkey', 'news_item_aggregate_news_item_attribute', 'news_item_attribute', ['news_item_attribute_id'], ['id'], ondelete='CASCADE')
# news_item_data - manual delete in Taranis keeps DATA tree records (to not crawl again?)
op.create_foreign_key('news_item_data_news_item_attribute_news_item_data_id_fkey', 'news_item_data_news_item_attribute', 'news_item_data', ['news_item_data_id'], ['id'], ondelete='CASCADE')
op.create_foreign_key('news_item_news_item_data_id_fkey', 'news_item', 'news_item_data', ['news_item_data_id'], ['id'], ondelete='CASCADE')
# news_item_aggregate
op.create_foreign_key('news_item_aggregate_news_item_attri_news_item_aggregate_id_fkey', 'news_item_aggregate_news_item_attribute', 'news_item_aggregate', ['news_item_aggregate_id'], ['id'], ondelete='CASCADE')
op.create_foreign_key('report_item_news_item_aggregate_news_item_aggregate_id_fkey', 'report_item_news_item_aggregate', 'news_item_aggregate', ['news_item_aggregate_id'], ['id'], ondelete='CASCADE')
op.create_foreign_key('news_item_aggregate_search_index_news_item_aggregate_id_fkey', 'news_item_aggregate_search_index', 'news_item_aggregate', ['news_item_aggregate_id'], ['id'], ondelete='CASCADE')
op.create_foreign_key('news_item_news_item_aggregate_id_fkey', 'news_item', 'news_item_aggregate', ['news_item_aggregate_id'], ['id'], ondelete='CASCADE')
# news_item
op.create_foreign_key('news_item_vote_news_item_id_fkey', 'news_item_vote', 'news_item', ['news_item_id'], ['id'], ondelete='CASCADE')

def downgrade():
delete_previous()
# news_item_attribute
op.create_foreign_key('news_item_data_news_item_attribute_news_item_attribute_id_fkey', 'news_item_data_news_item_attribute', 'news_item_attribute', ['news_item_attribute_id'], ['id'])
op.create_foreign_key('news_item_aggregate_news_item_attri_news_item_attribute_id_fkey', 'news_item_aggregate_news_item_attribute', 'news_item_attribute', ['news_item_attribute_id'], ['id'])
# news_item_data
op.create_foreign_key('news_item_data_news_item_attribute_news_item_data_id_fkey', 'news_item_data_news_item_attribute', 'news_item_data', ['news_item_data_id'], ['id'])
op.create_foreign_key('news_item_news_item_data_id_fkey', 'news_item', 'news_item_data', ['news_item_data_id'], ['id'])
# news_item_aggregate
op.create_foreign_key('news_item_aggregate_news_item_attri_news_item_aggregate_id_fkey', 'news_item_aggregate_news_item_attribute', 'news_item_aggregate', ['news_item_aggregate_id'], ['id'])
op.create_foreign_key('report_item_news_item_aggregate_news_item_aggregate_id_fkey', 'report_item_news_item_aggregate', 'news_item_aggregate', ['news_item_aggregate_id'], ['id'])
op.create_foreign_key('news_item_aggregate_search_index_news_item_aggregate_id_fkey', 'news_item_aggregate_search_index', 'news_item_aggregate', ['news_item_aggregate_id'], ['id'])
op.create_foreign_key('news_item_news_item_aggregate_id_fkey', 'news_item', 'news_item_aggregate', ['news_item_aggregate_id'], ['id'])
# news_item
op.create_foreign_key('news_item_vote_news_item_id_fkey', 'news_item_vote', 'news_item', ['news_item_id'], ['id'], ondelete='CASCADE')

def delete_previous():
print("deleting previous objects...", flush=True)
# news_item_attribute
op.drop_constraint('news_item_data_news_item_attribute_news_item_attribute_id_fkey', 'news_item_data_news_item_attribute', type_='foreignkey')
op.drop_constraint('news_item_aggregate_news_item_attri_news_item_attribute_id_fkey', 'news_item_aggregate_news_item_attribute', type_='foreignkey')
# news_item_data
op.drop_constraint('news_item_data_news_item_attribute_news_item_data_id_fkey', 'news_item_data_news_item_attribute', type_='foreignkey')
op.drop_constraint('news_item_news_item_data_id_fkey', 'news_item', type_='foreignkey')
# news_item_aggregate
op.drop_constraint('news_item_aggregate_news_item_attri_news_item_aggregate_id_fkey', 'news_item_aggregate_news_item_attribute', type_='foreignkey')
op.drop_constraint('report_item_news_item_aggregate_news_item_aggregate_id_fkey', 'report_item_news_item_aggregate', type_='foreignkey')
op.drop_constraint('news_item_aggregate_search_index_news_item_aggregate_id_fkey', 'news_item_aggregate_search_index', type_='foreignkey')
op.drop_constraint('news_item_news_item_aggregate_id_fkey', 'news_item', type_='foreignkey')
# news_item
op.drop_constraint('news_item_vote_news_item_id_fkey', 'news_item_vote', type_='foreignkey')

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