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38 lines
978 B
Python
38 lines
978 B
Python
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"""empty message
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Revision ID: 3f5836a3df5c
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Revises: b3c7ff6655af
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Create Date: 2020-12-04 22:30:33.420071
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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 identifiers, used by Alembic.
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revision = '3f5836a3df5c'
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down_revision = 'b3c7ff6655af'
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branch_labels = None
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depends_on = None
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def upgrade():
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op.alter_column('user', 'password',
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existing_type=sa.VARCHAR(length=255),
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nullable=True,
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existing_server_default=sa.text("''::character varying"))
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op.execute("""
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UPDATE "user" SET password=NULL WHERE password=''
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""")
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op.create_check_constraint("CK_password", "user",
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"password IS NULL OR password != ''")
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def downgrade():
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op.drop_constraint("CK_password", "user", type_="check")
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op.alter_column('user', 'password',
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existing_type=sa.VARCHAR(length=255),
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nullable=False,
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existing_server_default=sa.text("''::character varying"))
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