"""add_MSM_output_table

Revision ID: 8c6fa8b41084
Revises: f757f77a81ca
Create Date: 2025-07-12 00:46:46.342417

"""
from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision = '8c6fa8b41084'
down_revision = 'f757f77a81ca'
branch_labels = None
depends_on = None


def upgrade():
    """升级数据库到当前版本"""
    # ### commands auto generated by Alembic - please adjust! ###
    op.create_table('MSM_output_data',
    sa.Column('ID', sa.Integer(), autoincrement=True, nullable=False),
    sa.Column('Farmland_ID', sa.Integer(), nullable=False),
    sa.Column('Sample_ID', sa.Integer(), nullable=False),
    sa.Column('Var', sa.Text(), nullable=False, comment='过程模型数据索引符，与MSM_input_data.Var一致'),
    sa.Column('Cd.solution', sa.Float(), nullable=False, comment='镉离子浓度[mol/L]：络合模型核心计算结果'),
    sa.ForeignKeyConstraint(['Farmland_ID', 'Sample_ID'], ['Farmland_data.Farmland_ID', 'Farmland_data.Sample_ID'], ),
    sa.PrimaryKeyConstraint('ID'),
    comment='络合模型输出数据模型'
    )
    # ### end Alembic commands ###


def downgrade():
    """将数据库降级到上一版本"""
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_table('MSM_output_data')
    # ### end Alembic commands ###