2a3081c151
- 实现实体和关系同时提取（LLM） - 添加 transcripts/mentions/relations 数据持久化 - 新增 API: 关系列表、转录列表、实体提及位置 - 前端实体高亮显示和图谱联动 - 添加 STATUS.md 跟踪开发进度
304 lines
10 KiB
Python
304 lines
10 KiB
Python
#!/usr/bin/env python3
|
||
"""
|
||
InsightFlow Database Manager
|
||
处理项目、实体、关系的持久化
|
||
"""
|
||
|
||
import os
|
||
import json
|
||
import sqlite3
|
||
from datetime import datetime
|
||
from typing import List, Dict, Optional, Tuple
|
||
from dataclasses import dataclass
|
||
|
||
DB_PATH = os.getenv("DB_PATH", "/app/data/insightflow.db")
|
||
|
||
@dataclass
|
||
class Project:
|
||
id: str
|
||
name: str
|
||
description: str = ""
|
||
created_at: str = ""
|
||
updated_at: str = ""
|
||
|
||
@dataclass
|
||
class Entity:
|
||
id: str
|
||
project_id: str
|
||
name: str
|
||
type: str
|
||
definition: str = ""
|
||
canonical_name: str = ""
|
||
aliases: List[str] = None
|
||
|
||
def __post_init__(self):
|
||
if self.aliases is None:
|
||
self.aliases = []
|
||
|
||
@dataclass
|
||
class EntityMention:
|
||
id: str
|
||
entity_id: str
|
||
transcript_id: str
|
||
start_pos: int
|
||
end_pos: int
|
||
text_snippet: str
|
||
confidence: float = 1.0
|
||
|
||
class DatabaseManager:
|
||
def __init__(self, db_path: str = DB_PATH):
|
||
self.db_path = db_path
|
||
os.makedirs(os.path.dirname(db_path), exist_ok=True)
|
||
self.init_db()
|
||
|
||
def get_conn(self):
|
||
conn = sqlite3.connect(self.db_path)
|
||
conn.row_factory = sqlite3.Row
|
||
return conn
|
||
|
||
def init_db(self):
|
||
"""初始化数据库表"""
|
||
with open(os.path.join(os.path.dirname(__file__), 'schema.sql'), 'r') as f:
|
||
schema = f.read()
|
||
|
||
conn = self.get_conn()
|
||
conn.executescript(schema)
|
||
conn.commit()
|
||
conn.close()
|
||
|
||
# Project operations
|
||
def create_project(self, project_id: str, name: str, description: str = "") -> Project:
|
||
conn = self.get_conn()
|
||
now = datetime.now().isoformat()
|
||
conn.execute(
|
||
"INSERT INTO projects (id, name, description, created_at, updated_at) VALUES (?, ?, ?, ?, ?)",
|
||
(project_id, name, description, now, now)
|
||
)
|
||
conn.commit()
|
||
conn.close()
|
||
return Project(id=project_id, name=name, description=description, created_at=now, updated_at=now)
|
||
|
||
def get_project(self, project_id: str) -> Optional[Project]:
|
||
conn = self.get_conn()
|
||
row = conn.execute("SELECT * FROM projects WHERE id = ?", (project_id,)).fetchone()
|
||
conn.close()
|
||
if row:
|
||
return Project(**dict(row))
|
||
return None
|
||
|
||
def list_projects(self) -> List[Project]:
|
||
conn = self.get_conn()
|
||
rows = conn.execute("SELECT * FROM projects ORDER BY updated_at DESC").fetchall()
|
||
conn.close()
|
||
return [Project(**dict(r)) for r in rows]
|
||
|
||
# Entity operations
|
||
def create_entity(self, entity: Entity) -> Entity:
|
||
conn = self.get_conn()
|
||
conn.execute(
|
||
"""INSERT INTO entities (id, project_id, name, canonical_name, type, definition, aliases, created_at, updated_at)
|
||
VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)""",
|
||
(entity.id, entity.project_id, entity.name, entity.canonical_name, entity.type,
|
||
entity.definition, json.dumps(entity.aliases), datetime.now().isoformat(), datetime.now().isoformat())
|
||
)
|
||
conn.commit()
|
||
conn.close()
|
||
return entity
|
||
|
||
def get_entity_by_name(self, project_id: str, name: str) -> Optional[Entity]:
|
||
"""通过名称查找实体（用于对齐）"""
|
||
conn = self.get_conn()
|
||
row = conn.execute(
|
||
"SELECT * FROM entities WHERE project_id = ? AND (name = ? OR canonical_name = ? OR aliases LIKE ?)",
|
||
(project_id, name, name, f'%"{name}"%')
|
||
).fetchone()
|
||
conn.close()
|
||
if row:
|
||
data = dict(row)
|
||
data['aliases'] = json.loads(data['aliases']) if data['aliases'] else []
|
||
return Entity(**data)
|
||
return None
|
||
|
||
def find_similar_entities(self, project_id: str, name: str, threshold: float = 0.8) -> List[Entity]:
|
||
"""查找相似实体（简单实现，生产可用 embedding）"""
|
||
# TODO: 使用 embedding 或模糊匹配
|
||
# 现在简单返回包含相同关键词的实体
|
||
conn = self.get_conn()
|
||
rows = conn.execute(
|
||
"SELECT * FROM entities WHERE project_id = ? AND name LIKE ?",
|
||
(project_id, f"%{name}%")
|
||
).fetchall()
|
||
conn.close()
|
||
|
||
entities = []
|
||
for row in rows:
|
||
data = dict(row)
|
||
data['aliases'] = json.loads(data['aliases']) if data['aliases'] else []
|
||
entities.append(Entity(**data))
|
||
return entities
|
||
|
||
def merge_entities(self, target_id: str, source_id: str) -> Entity:
|
||
"""合并两个实体（实体对齐）"""
|
||
conn = self.get_conn()
|
||
|
||
# 获取两个实体
|
||
target = conn.execute("SELECT * FROM entities WHERE id = ?", (target_id,)).fetchone()
|
||
source = conn.execute("SELECT * FROM entities WHERE id = ?", (source_id,)).fetchone()
|
||
|
||
if not target or not source:
|
||
conn.close()
|
||
raise ValueError("Entity not found")
|
||
|
||
# 合并别名
|
||
target_aliases = set(json.loads(target['aliases']) if target['aliases'] else [])
|
||
target_aliases.add(source['name'])
|
||
target_aliases.update(json.loads(source['aliases']) if source['aliases'] else [])
|
||
|
||
# 更新目标实体
|
||
conn.execute(
|
||
"UPDATE entities SET aliases = ?, updated_at = ? WHERE id = ?",
|
||
(json.dumps(list(target_aliases)), datetime.now().isoformat(), target_id)
|
||
)
|
||
|
||
# 更新提及记录
|
||
conn.execute(
|
||
"UPDATE entity_mentions SET entity_id = ? WHERE entity_id = ?",
|
||
(target_id, source_id)
|
||
)
|
||
|
||
# 删除源实体
|
||
conn.execute("DELETE FROM entities WHERE id = ?", (source_id,))
|
||
|
||
conn.commit()
|
||
conn.close()
|
||
|
||
return self.get_entity(target_id)
|
||
|
||
def get_entity(self, entity_id: str) -> Optional[Entity]:
|
||
conn = self.get_conn()
|
||
row = conn.execute("SELECT * FROM entities WHERE id = ?", (entity_id,)).fetchone()
|
||
conn.close()
|
||
if row:
|
||
data = dict(row)
|
||
data['aliases'] = json.loads(data['aliases']) if data['aliases'] else []
|
||
return Entity(**data)
|
||
return None
|
||
|
||
def list_project_entities(self, project_id: str) -> List[Entity]:
|
||
conn = self.get_conn()
|
||
rows = conn.execute(
|
||
"SELECT * FROM entities WHERE project_id = ? ORDER BY updated_at DESC",
|
||
(project_id,)
|
||
).fetchall()
|
||
conn.close()
|
||
|
||
entities = []
|
||
for row in rows:
|
||
data = dict(row)
|
||
data['aliases'] = json.loads(data['aliases']) if data['aliases'] else []
|
||
entities.append(Entity(**data))
|
||
return entities
|
||
|
||
# Mention operations
|
||
def add_mention(self, mention: EntityMention) -> EntityMention:
|
||
conn = self.get_conn()
|
||
conn.execute(
|
||
"""INSERT INTO entity_mentions (id, entity_id, transcript_id, start_pos, end_pos, text_snippet, confidence)
|
||
VALUES (?, ?, ?, ?, ?, ?, ?)""",
|
||
(mention.id, mention.entity_id, mention.transcript_id, mention.start_pos,
|
||
mention.end_pos, mention.text_snippet, mention.confidence)
|
||
)
|
||
conn.commit()
|
||
conn.close()
|
||
return mention
|
||
|
||
def get_entity_mentions(self, entity_id: str) -> List[EntityMention]:
|
||
conn = self.get_conn()
|
||
rows = conn.execute(
|
||
"SELECT * FROM entity_mentions WHERE entity_id = ? ORDER BY transcript_id, start_pos",
|
||
(entity_id,)
|
||
).fetchall()
|
||
conn.close()
|
||
return [EntityMention(**dict(r)) for r in rows]
|
||
|
||
# Transcript operations
|
||
def save_transcript(self, transcript_id: str, project_id: str, filename: str, full_text: str):
|
||
"""保存转录记录"""
|
||
conn = self.get_conn()
|
||
now = datetime.now().isoformat()
|
||
conn.execute(
|
||
"INSERT INTO transcripts (id, project_id, filename, full_text, created_at) VALUES (?, ?, ?, ?, ?)",
|
||
(transcript_id, project_id, filename, full_text, now)
|
||
)
|
||
conn.commit()
|
||
conn.close()
|
||
|
||
def get_transcript(self, transcript_id: str) -> Optional[dict]:
|
||
"""获取转录记录"""
|
||
conn = self.get_conn()
|
||
row = conn.execute("SELECT * FROM transcripts WHERE id = ?", (transcript_id,)).fetchone()
|
||
conn.close()
|
||
if row:
|
||
return dict(row)
|
||
return None
|
||
|
||
def list_project_transcripts(self, project_id: str) -> List[dict]:
|
||
"""列出项目的所有转录"""
|
||
conn = self.get_conn()
|
||
rows = conn.execute(
|
||
"SELECT * FROM transcripts WHERE project_id = ? ORDER BY created_at DESC",
|
||
(project_id,)
|
||
).fetchall()
|
||
conn.close()
|
||
return [dict(r) for r in rows]
|
||
|
||
# Relation operations
|
||
def create_relation(self, project_id: str, source_entity_id: str, target_entity_id: str,
|
||
relation_type: str = "related", evidence: str = "", transcript_id: str = ""):
|
||
"""创建实体关系"""
|
||
conn = self.get_conn()
|
||
relation_id = str(uuid.uuid4())[:8]
|
||
now = datetime.now().isoformat()
|
||
conn.execute(
|
||
"""INSERT INTO entity_relations
|
||
(id, project_id, source_entity_id, target_entity_id, relation_type, evidence, transcript_id, created_at)
|
||
VALUES (?, ?, ?, ?, ?, ?, ?, ?)""",
|
||
(relation_id, project_id, source_entity_id, target_entity_id, relation_type, evidence, transcript_id, now)
|
||
)
|
||
conn.commit()
|
||
conn.close()
|
||
return relation_id
|
||
|
||
def get_entity_relations(self, entity_id: str) -> List[dict]:
|
||
"""获取实体的所有关系"""
|
||
conn = self.get_conn()
|
||
rows = conn.execute(
|
||
"""SELECT * FROM entity_relations
|
||
WHERE source_entity_id = ? OR target_entity_id = ?
|
||
ORDER BY created_at DESC""",
|
||
(entity_id, entity_id)
|
||
).fetchall()
|
||
conn.close()
|
||
return [dict(r) for r in rows]
|
||
|
||
def list_project_relations(self, project_id: str) -> List[dict]:
|
||
"""列出项目的所有关系"""
|
||
conn = self.get_conn()
|
||
rows = conn.execute(
|
||
"SELECT * FROM entity_relations WHERE project_id = ? ORDER BY created_at DESC",
|
||
(project_id,)
|
||
).fetchall()
|
||
conn.close()
|
||
return [dict(r) for r in rows]
|
||
|
||
|
||
# Singleton instance
|
||
_db_manager = None
|
||
|
||
|
||
def get_db_manager() -> DatabaseManager:
|
||
global _db_manager
|
||
if _db_manager is None:
|
||
_db_manager = DatabaseManager()
|
||
return _db_manager
|