47 lines
1.2 KiB
Python
47 lines
1.2 KiB
Python
"""ScoDoc 9.0.51: add unicity constraint on notes_moduleimpl_inscription
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Revision ID: d74b4e16fb3c
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Revises: f86c013c9fbd
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Create Date: 2021-10-09 20:08:50.927330
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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.orm import sessionmaker # added by ev
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# revision identifiers, used by Alembic.
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revision = "d74b4e16fb3c"
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down_revision = "f86c013c9fbd"
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branch_labels = None
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depends_on = None
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Session = sessionmaker()
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def upgrade():
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# Added by ev: remove duplicates
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bind = op.get_bind()
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session = Session(bind=bind)
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session.execute(
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"""
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DELETE FROM notes_moduleimpl_inscription i1
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USING notes_moduleimpl_inscription i2
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WHERE i1.id < i2.id
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AND i1.moduleimpl_id = i2.moduleimpl_id
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AND i1.etudid = i2.etudid;
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"""
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)
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# ### commands auto generated by Alembic - please adjust! ###
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op.create_unique_constraint(
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None, "notes_moduleimpl_inscription", ["moduleimpl_id", "etudid"]
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)
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# ### end Alembic commands ###
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def downgrade():
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# ### commands auto generated by Alembic - please adjust! ###
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op.drop_constraint(None, "notes_moduleimpl_inscription", type_="unique")
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# ### end Alembic commands ###
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