Files
replypier/backend/app/repositories/file_attachment.py
T
WangShen007 5e0615f36d feat(models): 组织、用户、角色、客户、会话与消息模型
按组织边界定义数据关系,补齐仓储层与通用工具,迁移脚本可重复执行。
2026-09-23 22:05:00 +08:00

96 lines
3.3 KiB
Python

"""
Copyright 2024-2026 ChatterMate
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
"""
from sqlalchemy.orm import Session
from app.models.file_attachment import FileAttachment
from typing import List, Optional
from uuid import UUID
class FileAttachmentRepository:
def __init__(self, db: Session):
self.db = db
def create_attachment(
self,
file_url: str,
filename: str,
content_type: str,
file_size: int,
organization_id: UUID,
chat_history_id: Optional[int] = None,
uploaded_by_user_id: Optional[UUID] = None,
uploaded_by_customer_id: Optional[UUID] = None
) -> FileAttachment:
"""Create a new file attachment record"""
attachment = FileAttachment(
file_url=file_url,
filename=filename,
content_type=content_type,
file_size=file_size,
chat_history_id=chat_history_id,
organization_id=organization_id,
uploaded_by_user_id=uploaded_by_user_id,
uploaded_by_customer_id=uploaded_by_customer_id
)
self.db.add(attachment)
self.db.commit()
self.db.refresh(attachment)
return attachment
def get_attachment(self, attachment_id: int) -> Optional[FileAttachment]:
"""Get a file attachment by ID"""
return self.db.query(FileAttachment).filter(
FileAttachment.id == attachment_id
).first()
def get_attachments_by_chat_history(
self, chat_history_id: int
) -> List[FileAttachment]:
"""Get all attachments for a chat message"""
return self.db.query(FileAttachment).filter(
FileAttachment.chat_history_id == chat_history_id
).all()
def get_attachments_by_organization(
self, organization_id: UUID, limit: int = 100
) -> List[FileAttachment]:
"""Get all attachments for an organization"""
return self.db.query(FileAttachment).filter(
FileAttachment.organization_id == organization_id
).order_by(FileAttachment.created_at.desc()).limit(limit).all()
def delete_attachment(self, attachment_id: int) -> bool:
"""Delete a file attachment"""
attachment = self.get_attachment(attachment_id)
if attachment:
self.db.delete(attachment)
self.db.commit()
return True
return False
def link_attachment_to_message(
self, attachment_id: int, chat_history_id: int
) -> Optional[FileAttachment]:
"""Link an existing attachment to a chat message"""
attachment = self.get_attachment(attachment_id)
if attachment:
attachment.chat_history_id = chat_history_id
self.db.commit()
self.db.refresh(attachment)
return attachment
return None