feat: prompt history table
This commit is contained in:
Timothy Jaeryang Baek
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"""Add prompt history table
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Revision ID: 374d2f66af06
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Revises: c440947495f3
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Create Date: 2026-01-23 17:15:00.000000
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"""
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from typing import Sequence, Union
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import uuid
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from alembic import op
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import sqlalchemy as sa
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revision: str = "374d2f66af06"
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down_revision: Union[str, None] = "c440947495f3"
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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 upgrade() -> None:
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conn = op.get_bind()
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# Step 1: Read existing data from OLD table (schema likely command as PK)
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# We use batch_alter previously, but we want to move to new table.
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# We need to assume the OLD structure.
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old_prompt_table = sa.table(
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"prompt",
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sa.column("command", sa.Text()),
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sa.column("user_id", sa.Text()),
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sa.column("title", sa.Text()),
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sa.column("content", sa.Text()),
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sa.column("timestamp", sa.BigInteger()),
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sa.column("access_control", sa.JSON()),
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)
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# Check if table exists/read data
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try:
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existing_prompts = conn.execute(
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sa.select(
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old_prompt_table.c.command,
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old_prompt_table.c.user_id,
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old_prompt_table.c.title,
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old_prompt_table.c.content,
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old_prompt_table.c.timestamp,
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old_prompt_table.c.access_control,
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)
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).fetchall()
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except Exception:
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# Fallback if table doesn't exist (new install)
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existing_prompts = []
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# Step 2: Create new prompt table with 'id' as PRIMARY KEY
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op.create_table(
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"prompt_new",
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sa.Column("id", sa.Text(), primary_key=True),
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sa.Column("command", sa.String(), unique=True, index=True),
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sa.Column("user_id", sa.String(), nullable=False),
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sa.Column("name", sa.Text(), nullable=False),
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sa.Column("content", sa.Text(), nullable=False),
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sa.Column("data", sa.JSON(), nullable=True),
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sa.Column("meta", sa.JSON(), nullable=True),
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sa.Column("access_control", sa.JSON(), nullable=True),
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sa.Column("is_active", sa.Boolean(), nullable=False, server_default="1"),
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sa.Column("version_id", sa.Text(), nullable=True),
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sa.Column("created_at", sa.BigInteger(), nullable=False),
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sa.Column("updated_at", sa.BigInteger(), nullable=False),
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)
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# Step 3: Create prompt_history table
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op.create_table(
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"prompt_history",
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sa.Column("id", sa.Text(), primary_key=True),
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sa.Column("prompt_id", sa.Text(), nullable=False, index=True),
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sa.Column("parent_id", sa.Text(), nullable=True),
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sa.Column("snapshot", sa.JSON(), nullable=False),
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sa.Column("user_id", sa.Text(), nullable=False),
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sa.Column("commit_message", sa.Text(), nullable=True),
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sa.Column("created_at", sa.BigInteger(), nullable=False),
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)
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# Step 4: Migrate data
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prompt_new_table = sa.table(
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"prompt_new",
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sa.column("id", sa.Text()),
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sa.column("command", sa.String()),
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sa.column("user_id", sa.String()),
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sa.column("name", sa.Text()),
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sa.column("content", sa.Text()),
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sa.column("data", sa.JSON()),
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sa.column("meta", sa.JSON()),
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sa.column("access_control", sa.JSON()),
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sa.column("is_active", sa.Boolean()),
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sa.column("version_id", sa.Text()),
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sa.column("created_at", sa.BigInteger()),
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sa.column("updated_at", sa.BigInteger()),
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)
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prompt_history_table = sa.table(
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"prompt_history",
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sa.column("id", sa.Text()),
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sa.column("prompt_id", sa.Text()),
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sa.column("parent_id", sa.Text()),
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sa.column("snapshot", sa.JSON()),
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sa.column("user_id", sa.Text()),
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sa.column("commit_message", sa.Text()),
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sa.column("created_at", sa.BigInteger()),
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)
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for row in existing_prompts:
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command = row[0]
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user_id = row[1]
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title = row[2]
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content = row[3]
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timestamp = row[4]
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access_control = row[5]
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new_uuid = str(uuid.uuid4())
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history_uuid = str(uuid.uuid4())
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clean_command = command[1:] if command and command.startswith("/") else command
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# Insert into prompt_new
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conn.execute(
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sa.insert(prompt_new_table).values(
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id=new_uuid,
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command=clean_command,
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user_id=user_id,
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name=title,
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content=content,
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data={},
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meta={},
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access_control=access_control,
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is_active=True,
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version_id=history_uuid,
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created_at=timestamp,
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updated_at=timestamp,
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)
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)
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# Create initial history entry
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conn.execute(
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sa.insert(prompt_history_table).values(
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id=history_uuid,
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prompt_id=new_uuid,
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parent_id=None,
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snapshot={
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"name": title,
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"content": content,
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"command": clean_command,
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"data": {},
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"meta": {},
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"access_control": access_control,
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},
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user_id=user_id,
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commit_message=None,
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created_at=timestamp,
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)
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)
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# Step 5: Replace old table with new one
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op.drop_table("prompt")
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op.rename_table("prompt_new", "prompt")
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def downgrade() -> None:
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conn = op.get_bind()
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# Step 1: Read new data
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prompt_table = sa.table(
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"prompt",
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sa.column("command", sa.String()),
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sa.column("name", sa.Text()),
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sa.column("created_at", sa.BigInteger()),
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sa.column("user_id", sa.Text()),
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sa.column("content", sa.Text()),
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sa.column("access_control", sa.JSON()),
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)
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try:
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current_data = conn.execute(
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sa.select(
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prompt_table.c.command,
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prompt_table.c.name,
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prompt_table.c.created_at,
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prompt_table.c.user_id,
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prompt_table.c.content,
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prompt_table.c.access_control,
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)
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).fetchall()
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except Exception:
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current_data = []
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# Step 2: Drop history and table
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op.drop_table("prompt_history")
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op.drop_table("prompt")
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# Step 3: Recreate old table (command as PK?)
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# Assuming old schema:
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op.create_table(
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"prompt",
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sa.Column("command", sa.String(), primary_key=True),
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sa.Column("user_id", sa.String()),
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sa.Column("title", sa.Text()),
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sa.Column("content", sa.Text()),
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sa.Column("timestamp", sa.BigInteger()),
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sa.Column("access_control", sa.JSON()),
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sa.Column("id", sa.Integer(), nullable=True),
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)
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# Step 4: Restore data
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old_prompt_table = sa.table(
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"prompt",
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sa.column("command", sa.String()),
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sa.column("user_id", sa.String()),
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sa.column("title", sa.Text()),
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sa.column("content", sa.Text()),
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sa.column("timestamp", sa.BigInteger()),
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sa.column("access_control", sa.JSON()),
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)
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for row in current_data:
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command = row[0]
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name = row[1]
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created_at = row[2]
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user_id = row[3]
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content = row[4]
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access_control = row[5]
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# Restore leading /
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old_command = (
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"/" + command if command and not command.startswith("/") else command
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)
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conn.execute(
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sa.insert(old_prompt_table).values(
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command=old_command,
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user_id=user_id,
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title=name,
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content=content,
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timestamp=created_at,
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access_control=access_control,
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)
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)
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