Vito Sansevero
ae11e81203
generated_images was UNIQUE(prompt_id, filename) on the basename, so ComfyUI's same-named files in different date folders were silently ignored by INSERT OR IGNORE, and the lastrowid == 0 branch after it never ran. The table now carries file_path (normcase/normpath/abspath of the image path) with UNIQUE(prompt_id, file_path); the migration collapses rows that normalise to one file and supersedes the old basename migration, which would otherwise undo it on every start. search_prompts and the tag search escaped nothing, so 100% matched '100 percent' and a_b matched aXb; user text now goes through escape_like with ESCAPE. save_prompt no longer stamps last_used_at, the usage backfill runs only on the upgrade that adds the columns, and the Recently Used / Most Used orders put never-run prompts (NULL) after run ones instead of first.
792 lines
32 KiB
Python
792 lines
32 KiB
Python
"""
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Database schema and models for KikoTextEncode prompt storage.
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"""
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import contextlib
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import datetime
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import shutil
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import sqlite3
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import os
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import threading
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from pathlib import Path
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from typing import Set, Tuple
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# Import logging system
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try:
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from ..utils.logging_config import get_logger
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except ImportError:
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import sys
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current_dir = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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sys.path.insert(0, current_dir)
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from utils.logging_config import get_logger
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# last_used_at is UTC ISO text so ORDER BY can compare it as text. The backfill
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# writes milliseconds (SQLite's %f); live writes use microseconds so runs in the
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# same millisecond still order correctly. Both forms sort correctly together.
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ISO_TIMESTAMP_FORMAT = "%Y-%m-%dT%H:%M:%f+00:00"
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def utc_now_iso() -> str:
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"""Current UTC time as ISO text with microseconds, e.g. 2026-10-07T18:39:06.758123+00:00."""
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return datetime.datetime.now(datetime.timezone.utc).isoformat(
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timespec="microseconds"
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)
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def normalize_image_path(path: str) -> str:
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"""Canonical form of an image path for generated_images.file_path.
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Absolute, with '..' and '.' collapsed and the platform's case folding
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applied, so two spellings of one file (or the same basename in two date
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folders) compare the way the filesystem would.
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"""
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return os.path.normcase(os.path.normpath(os.path.abspath(path)))
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SQLITE_HEADER = b"SQLite format 3\x00"
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REQUIRED_PROMPT_COLUMNS = ("id", "text", "created_at")
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class PromptModel:
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"""Database model for prompt storage and schema management."""
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# Paths (normalised, see _schema_key) whose schema has been created and
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# migrated in this process. Many PromptDatabase instances point at the
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# same file; only the first one pays for the schema check.
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_initialized_paths: Set[str] = set()
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_init_lock = threading.Lock()
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def __init__(self, db_path: str):
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"""
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Initialize the database model.
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Args:
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db_path: Absolute path to the SQLite database file
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"""
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self.logger = get_logger("prompt_manager.database.models")
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self.logger.debug(f"Initializing database model with path: {db_path}")
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self.db_path = db_path
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# One connection per thread (see get_connection); every open connection
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# is also tracked here so restore_from_file can close them all.
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self._local = threading.local()
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self._connections: Set[sqlite3.Connection] = set()
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self._conn_lock = threading.Lock()
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# Bumped by _close_all_connections so threads holding a closed
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# connection reopen on their next get_connection().
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self._generation = 0
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self._ensure_database_exists()
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def _ensure_database_exists(self) -> None:
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"""
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Create database and tables if they don't exist.
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Sets up the database schema including tables for prompts and generated images,
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creates necessary indexes, and applies any pending migrations.
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Raises:
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Exception: If database creation fails
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"""
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key = self._schema_key()
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with PromptModel._init_lock:
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if key in PromptModel._initialized_paths and os.path.exists(self.db_path):
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return
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try:
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conn = sqlite3.connect(self.db_path)
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try:
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conn.execute("PRAGMA journal_mode = WAL")
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conn.execute("PRAGMA busy_timeout = 5000")
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conn.execute("PRAGMA foreign_keys = ON")
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self._create_tables(conn)
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self._create_indexes(conn)
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conn.commit()
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finally:
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conn.close()
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except Exception as e:
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self.logger.error(f"Error creating database: {e}")
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raise
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PromptModel._initialized_paths.add(key)
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def _schema_key(self) -> str:
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"""Normalised identity of db_path for the once-per-process schema cache."""
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return os.path.normcase(os.path.realpath(self.db_path))
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@classmethod
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def reset_schema_cache(cls) -> None:
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"""Forget which databases were initialised (tests and restores)."""
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with cls._init_lock:
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cls._initialized_paths.clear()
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@contextlib.contextmanager
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def _table_rebuild(self, conn: sqlite3.Connection):
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"""Run a copy-and-swap table rebuild with foreign keys disabled.
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DROP TABLE on a parent table with foreign_keys ON performs an implicit
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DELETE that cascades into child rows (generated_images, prompt_tags),
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so the rebuild runs with the pragma off. The pragma is a no-op inside
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a transaction, hence the commits around it. Errors roll back and
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propagate after the pragma is restored.
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"""
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conn.commit()
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conn.execute("PRAGMA foreign_keys = OFF")
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# Explicit BEGIN: in sqlite3's legacy transaction mode DDL autocommits,
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# so without it a failed copy would leave the *_new table behind.
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conn.execute("BEGIN")
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try:
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yield
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conn.commit()
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except BaseException:
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conn.rollback()
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raise
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finally:
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conn.execute("PRAGMA foreign_keys = ON")
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def _create_tables(self, conn: sqlite3.Connection) -> None:
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"""
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Create the prompts and generated_images tables with all required columns.
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Args:
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conn: Active database connection
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Creates:
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- prompts table: Stores prompt text and metadata
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- generated_images table: Links generated images to their source prompts
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"""
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conn.execute("""
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CREATE TABLE IF NOT EXISTS prompts (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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text TEXT NOT NULL,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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category TEXT,
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tags TEXT,
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rating INTEGER CHECK(rating >= 1 AND rating <= 5),
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notes TEXT,
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hash TEXT UNIQUE,
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last_used_at TIMESTAMP,
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run_count INTEGER NOT NULL DEFAULT 0
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)
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""")
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# Create images table for gallery functionality
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conn.execute("""
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CREATE TABLE IF NOT EXISTS generated_images (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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prompt_id INTEGER NOT NULL,
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image_path TEXT NOT NULL,
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filename TEXT NOT NULL,
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generation_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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file_size INTEGER,
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width INTEGER,
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height INTEGER,
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format TEXT,
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workflow_data TEXT,
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prompt_metadata TEXT,
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parameters TEXT,
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file_path TEXT,
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FOREIGN KEY (prompt_id) REFERENCES prompts(id) ON DELETE CASCADE,
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UNIQUE(prompt_id, file_path)
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)
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""")
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# Create normalized tag tables (junction table pattern)
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conn.execute("""
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CREATE TABLE IF NOT EXISTS tags (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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name TEXT NOT NULL UNIQUE
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)
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""")
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conn.execute("""
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CREATE TABLE IF NOT EXISTS prompt_tags (
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prompt_id INTEGER NOT NULL,
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tag_id INTEGER NOT NULL,
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PRIMARY KEY (prompt_id, tag_id),
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FOREIGN KEY (prompt_id) REFERENCES prompts(id) ON DELETE CASCADE,
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FOREIGN KEY (tag_id) REFERENCES tags(id) ON DELETE CASCADE
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)
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""")
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# Check if we need to migrate from old schema with workflow_name
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self._migrate_workflow_name_removal(conn)
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# Fix foreign key data type mismatch
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self._migrate_foreign_key_types(conn)
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# Migrate JSON tags to normalized junction tables
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self._migrate_json_tags_to_junction(conn)
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# Usage tracking columns (after any migration that rebuilds prompts)
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self._migrate_add_usage_columns(conn)
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# Image uniqueness by full path instead of basename (3.2.4)
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self._migrate_image_uniqueness_by_path(conn)
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def _create_indexes(self, conn: sqlite3.Connection) -> None:
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"""
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Create indexes for better query performance.
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Args:
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conn: Active database connection
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Creates indexes on:
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- Text content for search operations
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- Categories and tags for filtering
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- Timestamps for sorting
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- Hash values for duplicate detection
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"""
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indexes = [
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"CREATE INDEX IF NOT EXISTS idx_prompts_text ON prompts(text)",
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"CREATE INDEX IF NOT EXISTS idx_prompts_category ON prompts(category)",
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"CREATE INDEX IF NOT EXISTS idx_prompts_created_at ON prompts(created_at)",
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"CREATE INDEX IF NOT EXISTS idx_prompts_hash ON prompts(hash)",
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"CREATE INDEX IF NOT EXISTS idx_prompts_rating ON prompts(rating)",
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"CREATE INDEX IF NOT EXISTS idx_prompts_last_used ON prompts(last_used_at)",
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"CREATE INDEX IF NOT EXISTS idx_prompts_run_count ON prompts(run_count)",
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"CREATE INDEX IF NOT EXISTS idx_prompt_images ON generated_images(prompt_id)",
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"CREATE INDEX IF NOT EXISTS idx_image_path ON generated_images(image_path)",
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"CREATE INDEX IF NOT EXISTS idx_image_file_path ON generated_images(file_path)",
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"CREATE INDEX IF NOT EXISTS idx_generation_time ON generated_images(generation_time)",
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"CREATE INDEX IF NOT EXISTS idx_prompt_tags_tag ON prompt_tags(tag_id)",
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"CREATE INDEX IF NOT EXISTS idx_tags_name ON tags(name)",
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]
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for index_sql in indexes:
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conn.execute(index_sql)
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def get_connection(self) -> sqlite3.Connection:
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"""
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Get the calling thread's database connection.
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Each thread gets its own ``sqlite3.Connection`` (kept in
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``threading.local``), created on first use and reused by that thread
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thereafter. Every connection is configured with WAL journaling,
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``row_factory = sqlite3.Row``, ``PRAGMA foreign_keys = ON`` and
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``PRAGMA busy_timeout = 5000`` so concurrent writers wait instead of
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failing. Callers use it as a context manager (``with conn:``), which
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commits or rolls back that thread's transaction and leaves the
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connection open. No lock is held while a connection is in use.
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Returns:
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sqlite3.Connection: The current thread's configured connection
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"""
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conn = getattr(self._local, "conn", None)
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if conn is not None and self._local.generation == self._generation:
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return conn
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# check_same_thread=False only so restore_from_file can close other
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# threads' connections; each connection is still used by one thread.
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conn = sqlite3.connect(self.db_path, check_same_thread=False)
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conn.row_factory = sqlite3.Row
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conn.execute("PRAGMA journal_mode = WAL")
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conn.execute("PRAGMA foreign_keys = ON")
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conn.execute("PRAGMA busy_timeout = 5000")
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self._local.conn = conn
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self._local.generation = self._generation
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with self._conn_lock:
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self._connections.add(conn)
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return conn
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def _close_all_connections(self) -> None:
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"""Close every thread's connection; they reopen lazily on next use."""
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with self._conn_lock:
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connections = list(self._connections)
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self._connections.clear()
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self._generation += 1
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self._local.conn = None
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for conn in connections:
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try:
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conn.close()
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except sqlite3.Error as e:
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self.logger.warning(f"Error closing database connection: {e}")
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def close(self) -> None:
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"""Close the calling thread's connection, if it has one.
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Other threads keep their connections. Call this before deleting or
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replacing the database file: Windows refuses to delete an open file.
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"""
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conn = getattr(self._local, "conn", None)
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if conn is None:
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return
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self._local.conn = None
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with self._conn_lock:
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self._connections.discard(conn)
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try:
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conn.close()
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except sqlite3.Error as e:
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self.logger.warning(f"Error closing database connection: {e}")
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def _migrate_workflow_name_removal(self, conn: sqlite3.Connection) -> None:
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"""
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Remove workflow_name column if it exists in existing database.
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Args:
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conn: Active database connection
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This migration handles legacy schema updates by removing the deprecated
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workflow_name column while preserving all other data.
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Raises:
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sqlite3.Error: If the rebuild fails (logged, nothing half-applied)
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"""
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try:
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cursor = conn.execute("PRAGMA table_info(prompts)")
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columns = [column[1] for column in cursor.fetchall()]
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if "workflow_name" not in columns:
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return
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self.logger.info("Migrating database: removing workflow_name column")
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with self._table_rebuild(conn):
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# A previous attempt may have died between CREATE and RENAME
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conn.execute("DROP TABLE IF EXISTS prompts_new")
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conn.execute("""
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CREATE TABLE prompts_new (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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text TEXT NOT NULL,
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created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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category TEXT,
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tags TEXT,
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rating INTEGER CHECK(rating >= 1 AND rating <= 5),
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notes TEXT,
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hash TEXT UNIQUE
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)
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""")
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conn.execute("""
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INSERT INTO prompts_new (id, text, created_at, updated_at, category, tags, rating, notes, hash)
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SELECT id, text, created_at, updated_at, category, tags, rating, notes, hash
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FROM prompts
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""")
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conn.execute("DROP TABLE prompts")
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conn.execute("ALTER TABLE prompts_new RENAME TO prompts")
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self.logger.info("Database migration completed")
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except sqlite3.Error as e:
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self.logger.error(f"Migration error (workflow_name removal): {e}")
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raise
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def _migrate_foreign_key_types(self, conn: sqlite3.Connection) -> None:
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"""
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Fix foreign key data type mismatch in generated_images table.
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Args:
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conn: Active database connection
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Converts prompt_id from TEXT to INTEGER type to match the prompts table's
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primary key type, ensuring referential integrity.
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Raises:
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sqlite3.Error: If the rebuild fails (logged, nothing half-applied)
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"""
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try:
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cursor = conn.execute("PRAGMA table_info(generated_images)")
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columns = {column[1]: column[2] for column in cursor.fetchall()}
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if columns.get("prompt_id") != "TEXT":
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return
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self.logger.info("Migrating foreign key types: prompt_id TEXT -> INTEGER")
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with self._table_rebuild(conn):
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conn.execute("DROP TABLE IF EXISTS generated_images_new")
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conn.execute("""
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CREATE TABLE generated_images_new (
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id INTEGER PRIMARY KEY AUTOINCREMENT,
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prompt_id INTEGER NOT NULL,
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image_path TEXT NOT NULL,
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filename TEXT NOT NULL,
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generation_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
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file_size INTEGER,
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width INTEGER,
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height INTEGER,
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format TEXT,
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workflow_data TEXT,
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prompt_metadata TEXT,
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parameters TEXT,
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FOREIGN KEY (prompt_id) REFERENCES prompts(id) ON DELETE CASCADE
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)
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""")
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conn.execute("""
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INSERT INTO generated_images_new
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(id, prompt_id, image_path, filename, generation_time, file_size,
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width, height, format, workflow_data, prompt_metadata, parameters)
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SELECT id, CAST(prompt_id AS INTEGER), image_path, filename, generation_time,
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file_size, width, height, format, workflow_data, prompt_metadata, parameters
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FROM generated_images
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WHERE prompt_id != '' AND prompt_id IS NOT NULL
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AND CAST(prompt_id AS INTEGER) IN (SELECT id FROM prompts)
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""")
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conn.execute("DROP TABLE generated_images")
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conn.execute(
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"ALTER TABLE generated_images_new RENAME TO generated_images"
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)
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self.logger.info("Foreign key migration completed")
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except sqlite3.Error as e:
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self.logger.error(f"Migration error (foreign key types): {e}")
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raise
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def _migrate_json_tags_to_junction(self, conn: sqlite3.Connection) -> None:
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"""
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Populate tags and prompt_tags tables from legacy JSON tags column.
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Runs once: skips if the tags table already has data. Uses json_each()
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to extract tag names from the JSON arrays stored in prompts.tags.
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Raises:
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sqlite3.Error: If the migration fails (logged)
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"""
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try:
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cursor = conn.execute("SELECT COUNT(*) FROM tags")
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if cursor.fetchone()[0] > 0:
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return # Already migrated
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cursor = conn.execute(
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"SELECT COUNT(*) FROM prompts "
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"WHERE tags IS NOT NULL AND tags != '' AND tags != '[]'"
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)
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if cursor.fetchone()[0] == 0:
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return # No tags to migrate
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self.logger.info("Migrating JSON tags to normalized junction tables")
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# Insert all unique tag names
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conn.execute(
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"INSERT OR IGNORE INTO tags (name) "
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"SELECT DISTINCT je.value FROM prompts, json_each(prompts.tags) AS je "
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"WHERE prompts.tags IS NOT NULL AND prompts.tags != '' AND prompts.tags != '[]'"
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)
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# Populate junction table
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conn.execute(
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"INSERT OR IGNORE INTO prompt_tags (prompt_id, tag_id) "
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"SELECT p.id, t.id "
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"FROM prompts p, json_each(p.tags) AS je "
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"JOIN tags t ON t.name = je.value "
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"WHERE p.tags IS NOT NULL AND p.tags != '' AND p.tags != '[]'"
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)
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tag_count = conn.execute("SELECT COUNT(*) FROM tags").fetchone()[0]
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link_count = conn.execute("SELECT COUNT(*) FROM prompt_tags").fetchone()[0]
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self.logger.info(
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f"Tag migration complete: {tag_count} unique tags, {link_count} prompt-tag links"
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)
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except sqlite3.Error as e:
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self.logger.error(f"Migration error (tag junction): {e}")
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raise
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def _migrate_add_usage_columns(self, conn: sqlite3.Connection) -> None:
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"""
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Add last_used_at and run_count (3.2.4) and estimate usage for existing rows.
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|
The backfill runs only when the columns are added, i.e. on the upgrade
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from a version without usage tracking. Afterwards a NULL last_used_at
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means "never run": saving a prompt does not stamp it, only
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record_prompt_use does, and "Recently Used" relies on that.
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The estimate comes from linked images: run_count is the image count (at
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least 1) and last_used_at the newest image time, falling back to created_at.
|
|
Timestamps are compared with julianday() because prompts use ISO 'T'
|
|
timestamps while generated_images uses SQLite's CURRENT_TIMESTAMP format.
|
|
"""
|
|
try:
|
|
columns = {row[1] for row in conn.execute("PRAGMA table_info(prompts)")}
|
|
added = False
|
|
if "last_used_at" not in columns:
|
|
self.logger.info("Adding prompt usage column last_used_at")
|
|
conn.execute("ALTER TABLE prompts ADD COLUMN last_used_at TIMESTAMP")
|
|
added = True
|
|
if "run_count" not in columns:
|
|
self.logger.info("Adding prompt usage column run_count")
|
|
conn.execute(
|
|
"ALTER TABLE prompts ADD COLUMN run_count INTEGER NOT NULL DEFAULT 0"
|
|
)
|
|
added = True
|
|
if not added:
|
|
return
|
|
|
|
cursor = conn.execute(f"""
|
|
UPDATE prompts SET
|
|
run_count = MAX(run_count, 1, (
|
|
SELECT COUNT(*) FROM generated_images gi
|
|
WHERE gi.prompt_id = prompts.id
|
|
)),
|
|
last_used_at = strftime('{ISO_TIMESTAMP_FORMAT}', MAX(
|
|
COALESCE(julianday(created_at), julianday('now')),
|
|
COALESCE((
|
|
SELECT MAX(julianday(gi.generation_time))
|
|
FROM generated_images gi WHERE gi.prompt_id = prompts.id
|
|
), 0)
|
|
))
|
|
WHERE last_used_at IS NULL
|
|
""")
|
|
if cursor.rowcount:
|
|
self.logger.info(f"Estimated usage for {cursor.rowcount} prompts")
|
|
except sqlite3.Error as e:
|
|
self.logger.error(f"Migration error (usage columns): {e}")
|
|
raise
|
|
|
|
def _migrate_image_uniqueness_by_path(self, conn: sqlite3.Connection) -> None:
|
|
"""
|
|
Rebuild generated_images so an image is unique per (prompt_id, file_path).
|
|
|
|
Older schemas were unique per (prompt_id, filename), i.e. the basename,
|
|
so ComfyUI's same-named files in different date folders were silently
|
|
dropped. file_path holds normalize_image_path(image_path); rows whose
|
|
paths normalise to the same file collapse to the newest one.
|
|
|
|
Raises:
|
|
sqlite3.Error: If the rebuild fails (logged, nothing half-applied)
|
|
"""
|
|
try:
|
|
columns = {
|
|
row[1] for row in conn.execute("PRAGMA table_info(generated_images)")
|
|
}
|
|
if "file_path" in columns:
|
|
return
|
|
|
|
self.logger.info("Migrating database: image uniqueness by full path")
|
|
with self._table_rebuild(conn):
|
|
rows = conn.execute(
|
|
"SELECT id, prompt_id, image_path FROM generated_images ORDER BY id"
|
|
).fetchall()
|
|
keep = {}
|
|
for row_id, prompt_id, image_path in rows:
|
|
keep[(prompt_id, normalize_image_path(image_path))] = row_id
|
|
|
|
conn.execute("DROP TABLE IF EXISTS generated_images_new")
|
|
conn.execute("""
|
|
CREATE TABLE generated_images_new (
|
|
id INTEGER PRIMARY KEY AUTOINCREMENT,
|
|
prompt_id INTEGER NOT NULL,
|
|
image_path TEXT NOT NULL,
|
|
filename TEXT NOT NULL,
|
|
generation_time TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
|
|
file_size INTEGER,
|
|
width INTEGER,
|
|
height INTEGER,
|
|
format TEXT,
|
|
workflow_data TEXT,
|
|
prompt_metadata TEXT,
|
|
parameters TEXT,
|
|
file_path TEXT,
|
|
FOREIGN KEY (prompt_id) REFERENCES prompts(id) ON DELETE CASCADE,
|
|
UNIQUE(prompt_id, file_path)
|
|
)
|
|
""")
|
|
conn.executemany(
|
|
"""
|
|
INSERT INTO generated_images_new
|
|
(id, prompt_id, image_path, filename, generation_time, file_size,
|
|
width, height, format, workflow_data, prompt_metadata, parameters,
|
|
file_path)
|
|
SELECT id, prompt_id, image_path, filename, generation_time, file_size,
|
|
width, height, format, workflow_data, prompt_metadata, parameters,
|
|
?
|
|
FROM generated_images WHERE id = ?
|
|
""",
|
|
[(file_path, row_id) for (_, file_path), row_id in keep.items()],
|
|
)
|
|
conn.execute("DROP TABLE generated_images")
|
|
conn.execute(
|
|
"ALTER TABLE generated_images_new RENAME TO generated_images"
|
|
)
|
|
dropped = len(rows) - len(keep)
|
|
if dropped:
|
|
self.logger.info(f"Collapsed {dropped} duplicate image rows")
|
|
self.logger.info("Image path uniqueness migration completed")
|
|
|
|
except sqlite3.Error as e:
|
|
self.logger.error(f"Migration error (image path uniqueness): {e}")
|
|
raise
|
|
|
|
def migrate_database(self) -> None:
|
|
"""
|
|
Apply any pending database migrations.
|
|
|
|
This method serves as an entry point for future schema migrations.
|
|
Add new migration logic here as the database evolves.
|
|
"""
|
|
# Future migrations can be added here
|
|
pass
|
|
|
|
def vacuum_database(self) -> None:
|
|
"""
|
|
Optimize database by running VACUUM command.
|
|
|
|
Reclaims unused space and defragments the database file,
|
|
improving query performance and reducing file size.
|
|
"""
|
|
try:
|
|
with sqlite3.connect(self.db_path) as conn:
|
|
conn.execute("VACUUM")
|
|
conn.commit()
|
|
except Exception as e:
|
|
self.logger.error(f"Error vacuuming database: {e}")
|
|
|
|
def get_database_info(self) -> dict:
|
|
"""
|
|
Get information about the database.
|
|
|
|
Returns:
|
|
dict: Database statistics and information
|
|
"""
|
|
try:
|
|
with self.get_connection() as conn:
|
|
cursor = conn.execute("SELECT COUNT(*) as total_prompts FROM prompts")
|
|
total_prompts = cursor.fetchone()["total_prompts"]
|
|
|
|
cursor = conn.execute(
|
|
"SELECT COUNT(DISTINCT category) as unique_categories FROM prompts WHERE category IS NOT NULL"
|
|
)
|
|
unique_categories = cursor.fetchone()["unique_categories"]
|
|
|
|
cursor = conn.execute(
|
|
"SELECT AVG(rating) as avg_rating FROM prompts WHERE rating IS NOT NULL"
|
|
)
|
|
avg_rating = cursor.fetchone()["avg_rating"]
|
|
|
|
# Get database file size
|
|
db_size = (
|
|
os.path.getsize(self.db_path) if os.path.exists(self.db_path) else 0
|
|
)
|
|
|
|
return {
|
|
"total_prompts": total_prompts,
|
|
"unique_categories": unique_categories,
|
|
"average_rating": round(avg_rating, 2) if avg_rating else None,
|
|
"database_size_bytes": db_size,
|
|
"database_path": os.path.abspath(self.db_path),
|
|
}
|
|
except Exception as e:
|
|
self.logger.error(f"Error getting database info: {e}")
|
|
return {}
|
|
|
|
def backup_database(self, backup_path: str) -> bool:
|
|
"""
|
|
Write a consistent copy of the database to backup_path.
|
|
|
|
Uses the SQLite online backup API through this thread's connection,
|
|
so rows that are committed but still sit in the -wal file are
|
|
included and other threads may keep reading and writing meanwhile.
|
|
|
|
Args:
|
|
backup_path: Path where the backup should be saved (overwritten)
|
|
|
|
Returns:
|
|
bool: True if backup was successful, False otherwise
|
|
"""
|
|
try:
|
|
if os.path.exists(backup_path) and os.path.samefile(
|
|
backup_path, self.db_path
|
|
):
|
|
self.logger.error("Refusing to back up the database onto itself")
|
|
return False
|
|
if os.path.exists(backup_path):
|
|
os.remove(backup_path)
|
|
source = self.get_connection()
|
|
destination = sqlite3.connect(backup_path)
|
|
try:
|
|
source.backup(destination)
|
|
finally:
|
|
destination.close()
|
|
return True
|
|
except (OSError, sqlite3.Error) as e:
|
|
self.logger.error(f"Error creating database backup: {e}")
|
|
return False
|
|
|
|
@staticmethod
|
|
def verify_database_file(path: str) -> Tuple[bool, str]:
|
|
"""
|
|
Check that a file is a healthy prompts database before restoring it.
|
|
|
|
Opens the file read-only, runs PRAGMA integrity_check and confirms the
|
|
prompts table has the columns every version of this extension needs.
|
|
|
|
Args:
|
|
path: File to inspect
|
|
|
|
Returns:
|
|
(ok, reason): reason is "ok" when the file is acceptable, otherwise
|
|
a human-readable explanation. Never raises for bad input.
|
|
"""
|
|
if not os.path.isfile(path):
|
|
return False, "File not found"
|
|
try:
|
|
with open(path, "rb") as fh:
|
|
header = fh.read(len(SQLITE_HEADER))
|
|
except OSError as e:
|
|
return False, f"Cannot read file: {e}"
|
|
if header != SQLITE_HEADER:
|
|
return False, "Not a SQLite database file"
|
|
|
|
uri = Path(os.path.abspath(path)).as_uri() + "?mode=ro"
|
|
try:
|
|
conn = sqlite3.connect(uri, uri=True)
|
|
except sqlite3.Error as e:
|
|
return False, f"Invalid SQLite database: {e}"
|
|
try:
|
|
row = conn.execute("PRAGMA integrity_check").fetchone()
|
|
verdict = row[0] if row else "no result"
|
|
if verdict != "ok":
|
|
return False, f"Integrity check failed: {verdict}"
|
|
table = conn.execute(
|
|
"SELECT name FROM sqlite_master WHERE type='table' AND name='prompts'"
|
|
).fetchone()
|
|
if not table:
|
|
return False, "Database does not contain a 'prompts' table"
|
|
columns = {r[1] for r in conn.execute("PRAGMA table_info(prompts)")}
|
|
missing = [c for c in REQUIRED_PROMPT_COLUMNS if c not in columns]
|
|
if missing:
|
|
return (
|
|
False,
|
|
"prompts table is missing required columns: " + ", ".join(missing),
|
|
)
|
|
return True, "ok"
|
|
except sqlite3.Error as e:
|
|
return False, f"Invalid SQLite database: {e}"
|
|
finally:
|
|
conn.close()
|
|
|
|
def restore_from_file(self, src_path: str) -> str:
|
|
"""
|
|
Replace the live database with the file at src_path.
|
|
|
|
The current database is first backed up next to itself as
|
|
``<db_path>.backup_<YYYYmmdd_HHMMSS>`` (WAL content included), every
|
|
thread's connection is closed, the file is copied over, stale -wal and
|
|
-shm files are removed and the schema migrations run on the restored
|
|
file. Connections reopen lazily on the next get_connection().
|
|
|
|
Callers should run verify_database_file(src_path) first.
|
|
|
|
Args:
|
|
src_path: SQLite file to restore
|
|
|
|
Returns:
|
|
Path of the backup taken of the previous database, or "" when
|
|
there was no database to back up.
|
|
|
|
Raises:
|
|
RuntimeError: If the previous database could not be backed up
|
|
OSError: If the restored file could not be copied into place
|
|
"""
|
|
backup_path = ""
|
|
if os.path.exists(self.db_path):
|
|
timestamp = datetime.datetime.now().strftime("%Y%m%d_%H%M%S")
|
|
backup_path = f"{self.db_path}.backup_{timestamp}"
|
|
if not self.backup_database(backup_path):
|
|
raise RuntimeError("Could not back up the current database")
|
|
self.logger.info(f"Current database backed up to: {backup_path}")
|
|
|
|
self._close_all_connections()
|
|
shutil.copy2(src_path, self.db_path)
|
|
for suffix in ("-wal", "-shm"):
|
|
stale = self.db_path + suffix
|
|
if os.path.exists(stale):
|
|
os.remove(stale)
|
|
with PromptModel._init_lock:
|
|
PromptModel._initialized_paths.discard(self._schema_key())
|
|
self._ensure_database_exists()
|
|
self.logger.info(f"Database restored from {src_path}")
|
|
return backup_path
|