51 lines
1.4 KiB
Python
51 lines
1.4 KiB
Python
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"""add claim fields to story/chapter image intents
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Revision ID: 0010_intent_claims
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Revises: 0009_si_constraints
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"""
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from typing import Sequence, Union
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import sqlalchemy as sa
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from alembic import op
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revision: str = "0010_intent_claims"
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down_revision: Union[str, Sequence[str], None] = "0009_si_constraints"
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branch_labels: Union[str, Sequence[str], None] = None
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depends_on: Union[str, Sequence[str], None] = None
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def _add_claim_columns(table_name: str) -> None:
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op.add_column(table_name, sa.Column("claim_token", sa.String(), nullable=True))
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op.add_column(
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table_name, sa.Column("claimed_at", sa.DateTime(timezone=True), nullable=True)
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)
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op.add_column(
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table_name,
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sa.Column(
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"attempt_count",
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sa.Integer(),
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nullable=True,
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server_default="0",
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),
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)
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op.execute(f"UPDATE {table_name} SET attempt_count = 0 WHERE attempt_count IS NULL")
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op.alter_column(table_name, "attempt_count", nullable=False, server_default=None)
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def _drop_claim_columns(table_name: str) -> None:
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op.drop_column(table_name, "attempt_count")
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op.drop_column(table_name, "claimed_at")
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op.drop_column(table_name, "claim_token")
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def upgrade() -> None:
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_add_claim_columns("story_image_intents")
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_add_claim_columns("chapter_cover_intents")
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def downgrade() -> None:
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_drop_claim_columns("chapter_cover_intents")
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_drop_claim_columns("story_image_intents")
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