Cam Proudlock
a9d0dfff4a
Flask + Vue rewrite of the classic-ASP shopdb, built as a plugin framework so sister GE Aerospace sites can adopt it. Product version 0.7.0-pre-0.8.0, plugin contract 0.11.0, 966 backend tests. Key entry points: - docs/INSTALL-WINDOWS-IIS.md - tested Windows + IIS install runbook (own-site and subpath deployment methods) - docs/PILOT-DEPLOY.md - production pilot: stand up + import + verify - docs/IMPORT-API.md - schema-agnostic legacy data import contract - scripts/site_imports/wjf/ - West Jefferson reference import loader - docs/adr/ - twelve accepted architecture decision records
58 lines
2.1 KiB
Python
58 lines
2.1 KiB
Python
"""Drop redundant secondary indexes duplicating a named idx_* / unique index.
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The DB review found five non-unique secondary indexes that duplicate an existing
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index on the same column: the auto-named ix_* from a column index=True alongside
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a named idx_* in __table_args__ (communications.assetid, and the hostname on
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computers/networkdevices/printers), plus idx_usb_serial duplicating the
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serialnumber unique index on usbdevices. Each redundant pair costs insert/update
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maintenance with zero read benefit. The models had the redundant index source
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removed; this drops the live duplicates so the schema matches the models.
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Idempotent (skips a missing table/index); real downgrade recreates them.
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Revision ID: 7d25_drop_redundant_indexes
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Revises: 7d24_customfield_searchable
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Create Date: 2026-07-13
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"""
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from alembic import op
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import sqlalchemy as sa
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revision = '7d25_drop_redundant_indexes'
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down_revision = '7d24_customfield_searchable'
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branch_labels = None
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depends_on = None
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# (table, index name, columns, unique) - columns/unique used only to recreate on
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# downgrade. All non-unique; the surviving idx_* / unique index still covers each.
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_REDUNDANT = [
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('communications', 'ix_communications_assetid', ['assetid'], False),
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('computers', 'ix_computers_hostname', ['hostname'], False),
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('networkdevices', 'ix_networkdevices_hostname', ['hostname'], False),
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('printers', 'ix_printers_hostname', ['hostname'], False),
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('usbdevices', 'idx_usb_serial', ['serialnumber'], False),
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]
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def _index_names(insp, table):
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return {i['name'] for i in insp.get_indexes(table)}
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def upgrade():
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bind = op.get_bind()
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insp = sa.inspect(bind)
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tables = set(insp.get_table_names())
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for table, name, _cols, _unique in _REDUNDANT:
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if table in tables and name in _index_names(insp, table):
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op.drop_index(name, table_name=table)
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def downgrade():
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bind = op.get_bind()
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insp = sa.inspect(bind)
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tables = set(insp.get_table_names())
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for table, name, cols, unique in _REDUNDANT:
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if table in tables and name not in _index_names(insp, table):
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op.create_index(name, table, cols, unique=unique)
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