35 lines
1.1 KiB
Python
35 lines
1.1 KiB
Python
"""Switched attachment id to UUID
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Revision ID: 72df33816b21
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Revises: d2227d2479e2
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Create Date: 2022-04-26 21:50:05.466388
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"""
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from alembic import op
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import sqlalchemy as sa
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from sqlalchemy.dialects import postgresql
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# revision identifiers, used by Alembic.
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revision = '72df33816b21'
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down_revision = 'd2227d2479e2'
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branch_labels = None
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depends_on = None
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def upgrade():
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# Create uuid-ossp extension, required to use uuid_generate_v4()
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op.execute('CREATE EXTENSION IF NOT EXISTS "uuid-ossp";')
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# /!\ This operation will break all attachments /!\
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op.execute("""ALTER TABLE attachment ALTER COLUMN id DROP DEFAULT,
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ALTER COLUMN id SET DATA TYPE UUID USING (uuid_generate_v4()),
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ALTER COLUMN id SET DEFAULT uuid_generate_v4();""")
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# ### end Alembic commands ###
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def downgrade():
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# /!\ This operation will break all attachments /!\
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op.execute("""ALTER TABLE attachment ALTER COLUMN id DROP DEFAULT,
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ALTER COLUMN id SET DATA TYPE integer USING nextval('attachment_id_seq'::regclass),
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ALTER COLUMN id SET DEFAULT nextval('attachment_id_seq'::regclass);""")
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# ### end Alembic commands ###
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