81 lines
4.3 KiB
Python
81 lines
4.3 KiB
Python
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"""Checkpoint C1: socle compteurs, rattachements et relevés audités."""
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from alembic import op
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import sqlalchemy as sa
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revision = "n9c0d1e2f3g4"
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down_revision = "m8b9c0d1e2f3"
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branch_labels = None
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depends_on = None
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def upgrade():
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# Les relevés restent auditables après suppression d'un utilisateur ;
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# seule la référence vers l'auteur devient NULL.
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op.drop_constraint("meter_readings_ibfk_2", "meter_readings", type_="foreignkey")
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op.create_foreign_key(
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"fk_meter_readings_read_by", "meter_readings", "users",
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["read_by_id"], ["id"], ondelete="SET NULL",
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)
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op.alter_column("meters", "equipment_id", existing_type=sa.Integer(), nullable=True)
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for name, target in (
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("building_id", "buildings"), ("zone_id", "zones"),
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("room_id", "rooms"), ("housing_unit_id", "housing_units"),
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):
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op.add_column("meters", sa.Column(name, sa.Integer(), nullable=True))
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op.create_index(f"ix_meters_{name}", "meters", [name])
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op.create_foreign_key(f"fk_meters_{name}", "meters", target, [name], ["id"])
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op.add_column("meters", sa.Column("parent_id", sa.Integer(), nullable=True))
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op.add_column("meters", sa.Column("replaces_meter_id", sa.Integer(), nullable=True))
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op.add_column("meters", sa.Column("usage", sa.String(255), nullable=True))
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op.add_column("meters", sa.Column("status", sa.String(30), nullable=False, server_default="active"))
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op.add_column("meters", sa.Column("remainder_label", sa.String(255), nullable=True))
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for name in ("parent_id", "replaces_meter_id"):
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op.create_index(f"ix_meters_{name}", "meters", [name])
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op.create_foreign_key(f"fk_meters_{name}", "meters", "meters", [name], ["id"])
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op.create_check_constraint(
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"ck_meters_one_scope", "meters",
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"(equipment_id IS NOT NULL) + (building_id IS NOT NULL) + "
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"(zone_id IS NOT NULL) + (room_id IS NOT NULL) + "
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"(housing_unit_id IS NOT NULL) = 1",
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)
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op.add_column("meter_readings", sa.Column("photo_filename", sa.String(255), nullable=True))
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op.add_column("meter_readings", sa.Column("photo_path", sa.String(500), nullable=True))
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op.create_table(
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"meter_reading_corrections",
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sa.Column("id", sa.Integer(), primary_key=True),
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sa.Column("reading_id", sa.Integer(), nullable=False),
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sa.Column("old_value", sa.Float(), nullable=False),
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sa.Column("new_value", sa.Float(), nullable=False),
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sa.Column("corrected_by_id", sa.Integer(), nullable=True),
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sa.Column("corrected_at", sa.DateTime(), nullable=False),
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sa.Column("reason", sa.Text(), nullable=False),
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sa.ForeignKeyConstraint(["reading_id"], ["meter_readings.id"], ondelete="CASCADE"),
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sa.ForeignKeyConstraint(["corrected_by_id"], ["users.id"], ondelete="SET NULL"),
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)
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op.create_index("ix_meter_reading_corrections_reading_id", "meter_reading_corrections", ["reading_id"])
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op.create_index("ix_meter_reading_corrections_corrected_by_id", "meter_reading_corrections", ["corrected_by_id"])
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def downgrade():
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op.drop_constraint("fk_meter_readings_read_by", "meter_readings", type_="foreignkey")
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op.create_foreign_key("meter_readings_ibfk_2", "meter_readings", "users", ["read_by_id"], ["id"])
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op.drop_index("ix_meter_reading_corrections_corrected_by_id", table_name="meter_reading_corrections")
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op.drop_index("ix_meter_reading_corrections_reading_id", table_name="meter_reading_corrections")
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op.drop_table("meter_reading_corrections")
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op.drop_column("meter_readings", "photo_path")
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op.drop_column("meter_readings", "photo_filename")
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op.drop_constraint("ck_meters_one_scope", "meters", type_="check")
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for name in ("replaces_meter_id", "parent_id"):
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op.drop_constraint(f"fk_meters_{name}", "meters", type_="foreignkey")
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op.drop_index(f"ix_meters_{name}", table_name="meters")
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op.drop_column("meters", name)
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for name in ("remainder_label", "status", "usage"):
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op.drop_column("meters", name)
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for name, target in reversed((("building_id", "buildings"), ("zone_id", "zones"), ("room_id", "rooms"), ("housing_unit_id", "housing_units"))):
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op.drop_constraint(f"fk_meters_{name}", "meters", type_="foreignkey")
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op.drop_index(f"ix_meters_{name}", table_name="meters")
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op.drop_column("meters", name)
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op.alter_column("meters", "equipment_id", existing_type=sa.Integer(), nullable=False)
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