forked from ScoDoc/ScoDoc
96 lines
2.5 KiB
Python
96 lines
2.5 KiB
Python
"""Association UEs <-> parcours
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Revision ID: 054dd6133b9c
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Revises: 6520faf67508
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Create Date: 2023-03-30 19:40:50.575293
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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 = "054dd6133b9c"
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down_revision = "6520faf67508"
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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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"""Passe d'une relation UE - Parcours one-to-many à une relation many-to-many
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crée la table d'association, copie l'éventuelle relation existante
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puis supprime la clé étrangère parcour_id
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"""
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op.create_table(
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"ue_parcours",
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sa.Column("ue_id", sa.Integer(), nullable=False),
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sa.Column("parcours_id", sa.Integer(), nullable=False),
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sa.Column("ects", sa.Float(), nullable=True),
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sa.ForeignKeyConstraint(
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["parcours_id"], ["apc_parcours.id"], ondelete="CASCADE"
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),
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sa.ForeignKeyConstraint(["ue_id"], ["notes_ue.id"], ondelete="CASCADE"),
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sa.PrimaryKeyConstraint("ue_id", "parcours_id"),
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)
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#
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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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sa.text(
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"""
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INSERT INTO ue_parcours
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SELECT id as ue_id, parcour_id as parcours_id
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FROM notes_ue
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WHERE parcour_id is not NULL;
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"""
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)
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)
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session.commit()
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op.drop_column("notes_ue", "parcour_id")
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# Numeros non nullables
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for table in (
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"apc_competence",
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"apc_parcours",
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"notes_form_modalites",
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"notes_ue",
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"notes_matieres",
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"notes_modules",
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"notes_evaluation",
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"partition",
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"group_descr",
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):
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session.execute(
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sa.text(
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f"""UPDATE {table} SET numero=0 WHERE numero is NULL;
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"""
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)
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)
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session.commit()
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op.alter_column(table, "numero", existing_type=sa.INTEGER(), nullable=False)
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def downgrade():
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#
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op.add_column(
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"notes_ue",
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sa.Column("parcour_id", sa.INTEGER(), autoincrement=False, nullable=True),
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)
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op.drop_table("ue_parcours")
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for table in (
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"apc_competence",
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"apc_parcours",
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"notes_form_modalites",
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"notes_ue",
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"notes_matieres",
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"notes_modules",
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"notes_evaluation",
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"partition",
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"group_descr",
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):
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op.alter_column(table, "numero", existing_type=sa.INTEGER(), nullable=True)
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