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"""Удаление lab_component_nutrients — только EAV lab_component_nutrient_value.
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Revision ID: drop_lab_component_nutrients
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Revises: org_settings_normalize
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Create Date: 2026-06-08
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"""
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from __future__ import annotations
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import uuid
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import sqlalchemy as sa
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from alembic import op
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revision = "drop_lab_component_nutrients"
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down_revision = "org_settings_normalize"
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branch_labels = None
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depends_on = None
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_SUMMARY_TO_HEADER = {
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"crude_protein": "Сыр. Протеин",
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"usp": "уСП",
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"bra": "БРА",
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"nel_cattle": "ЧЭЛ- КРС",
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"oe_cattle": "ОЭ-КРС",
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"ndf": "Сырая клетч",
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"structural_fiber": "Структур клетч",
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"crude_fat": "Сырой жир",
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}
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def _migrate_summary_to_eav(bind) -> None:
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insp = sa.inspect(bind)
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if "lab_component_nutrients" not in insp.get_table_names():
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return
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if "lab_component_nutrient_value" not in insp.get_table_names():
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return
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rows = bind.execute(
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sa.text(
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"""
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SELECT component_id, crude_protein, usp, bra, nel_cattle,
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oe_cattle, ndf, structural_fiber, crude_fat
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FROM lab_component_nutrients
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"""
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)
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).fetchall()
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for row in rows:
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comp_id = row[0]
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for i, header in enumerate(_SUMMARY_TO_HEADER.values()):
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val = row[i + 1]
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if val is None:
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continue
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bind.execute(
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sa.text(
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"""
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INSERT INTO lab_component_nutrient_value
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(id, component_id, nutrient_key, value)
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VALUES (:id, :component_id, :nutrient_key, :value)
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ON CONFLICT(component_id, nutrient_key) DO NOTHING
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"""
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),
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{
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"id": str(uuid.uuid4()),
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"component_id": comp_id,
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"nutrient_key": header,
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"value": val,
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},
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)
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def upgrade(**kw) -> None:
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if kw.get("tag") == "reports":
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return
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bind = op.get_bind()
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_migrate_summary_to_eav(bind)
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insp = sa.inspect(bind)
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if "lab_component_nutrients" in insp.get_table_names():
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op.drop_table("lab_component_nutrients")
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def downgrade(**kw) -> None:
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if kw.get("tag") == "reports":
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return
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bind = op.get_bind()
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if "lab_component_nutrients" not in sa.inspect(bind).get_table_names():
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op.create_table(
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"lab_component_nutrients",
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sa.Column("component_id", sa.String(length=36), primary_key=True),
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sa.Column("crude_protein", sa.Float(), nullable=True),
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sa.Column("usp", sa.Float(), nullable=True),
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sa.Column("bra", sa.Float(), nullable=True),
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sa.Column("nel_cattle", sa.Float(), nullable=True),
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sa.Column("oe_cattle", sa.Float(), nullable=True),
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sa.Column("ndf", sa.Float(), nullable=True),
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sa.Column("structural_fiber", sa.Float(), nullable=True),
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sa.Column("crude_fat", sa.Float(), nullable=True),
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)
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