rag-gateway/app/service/knowledge.py

from sqlalchemy import or_

from app.models import KnowledgeModel, group_knowledge_table
from app.models.user_model import UserModel
from Log import logger
from app.task.fetch_agent import get_one_from_ragflow_knowledge


async def get_knowledge_list(db, user_id, keyword, page_size, page_index, status, knowledge, location):
    user = db.query(UserModel).filter(UserModel.id == user_id).first()
    if user is None:
        return {"rows": []}
    query = db.query(KnowledgeModel).filter(KnowledgeModel.knowledge_type==knowledge)
    if user.permission != "admin":
        klg_list = [j.id for i in user.groups for j in i.knowledges]
        query = query.filter(or_(KnowledgeModel.tenant_id == user_id, KnowledgeModel.id.in_(klg_list)))
    if location:
        query = query.filter(KnowledgeModel.permission == "team")
    if keyword:
        query = query.filter(KnowledgeModel.name.like('%{}%'.format(keyword)))
    total = query.count()
    if page_size:
        query = query.order_by(KnowledgeModel.update_date.desc()).limit(page_size).offset((page_index - 1) * page_size)
    return {"total":  total, "rows": [kld.to_json() for kld in query.all()]}


async def create_knowledge_service(db, klg_id, name, description, icon, klg_type, user_id):
    try:
        dialog_model = KnowledgeModel(id=klg_id,name=name, description=description,icon=icon, knowledge_type=klg_type, tenant_id=user_id)
        db.add(dialog_model)
        db.commit()
        db.refresh(dialog_model)
    except Exception as e:
        logger.error(e)
        db.rollback()
        return False
    return True


async def sync_knowledge_service(db, klg_id):
    knowledge = db.query(KnowledgeModel).filter(KnowledgeModel.id == klg_id).first()
    if knowledge:
        try:
            app_knowledge = get_one_from_ragflow_knowledge(klg_id)
            if app_knowledge:
                knowledge.name = app_knowledge["name"]
                knowledge.description = app_knowledge["description"]
                knowledge.permission = app_knowledge["permission"]
                knowledge.documents = app_knowledge["doc_num"]
                knowledge.status = app_knowledge["status"]
                db.add(knowledge)
                db.commit()
                db.refresh(knowledge)
        except Exception as e:
            logger.error(e)
            db.rollback()
            return False
        return True


async def delete_knowledge_service(db, klg_id):

    try:
        db.query(KnowledgeModel).filter(KnowledgeModel.id==klg_id).delete()
        db.commit()
    except Exception as e:
        logger.error(e)
        db.rollback()
        return False
    return True