42 lines
1.1 KiB
Python
42 lines
1.1 KiB
Python
"""add iso_threads and unc_threads tables
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Revision ID: 627d4460a94f
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Revises: 0001_initial
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Create Date: 2026-06-24 21:50:05.340235
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"""
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from collections.abc import Sequence
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import sqlalchemy as sa
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from alembic import op
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revision: str = "627d4460a94f"
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down_revision: str | None = "0001_initial"
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branch_labels: str | Sequence[str] | None = None
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depends_on: str | Sequence[str] | None = None
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def upgrade() -> None:
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op.create_table(
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"iso_threads",
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sa.Column("id", sa.Integer(), primary_key=True),
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sa.Column("diameter_mm", sa.Float(), nullable=False),
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sa.Column("pitch_mm", sa.Float(), nullable=False),
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sa.Column("depth_mm", sa.Float(), nullable=True),
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)
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op.create_table(
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"unc_threads",
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sa.Column("id", sa.Integer(), primary_key=True),
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sa.Column("diameter_fraction", sa.String(length=16), nullable=False),
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sa.Column("tpi", sa.Integer(), nullable=False),
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sa.Column("series", sa.String(length=8), nullable=False),
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sa.Column("depth_in", sa.Float(), nullable=True),
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)
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def downgrade() -> None:
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op.drop_table("unc_threads")
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op.drop_table("iso_threads")
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