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ai-video-fullstack/backend/migrations/versions/20260812_0020_add_vision_prompt_mode.py
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"""replace vision focus with explicit prompt modes
Revision ID: 20260812_0020
Revises: 20260812_0019
"""
from collections.abc import Sequence
from alembic import op
import sqlalchemy as sa
revision: str = "20260812_0020"
down_revision: str | Sequence[str] | None = "20260812_0019"
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None
def upgrade() -> None:
op.alter_column(
"assistants",
"vision_focus_prompt",
new_column_name="vision_prompt",
)
op.add_column(
"assistants",
sa.Column(
"vision_prompt_mode",
sa.String(length=16),
server_default="runtime",
nullable=False,
),
)
# The previous single-field implementation behaved most like guided mode.
op.execute(
"UPDATE assistants SET vision_prompt_mode = 'guided' "
"WHERE TRIM(vision_prompt) <> ''"
)
def downgrade() -> None:
op.drop_column("assistants", "vision_prompt_mode")
op.alter_column(
"assistants",
"vision_prompt",
new_column_name="vision_focus_prompt",
)