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#
# Copyright 2024 The InfiniFlow Authors. All Rights Reserved.
#
# 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 flask_login import current_user
from peewee import fn
from api.db import FileType
from api.db.db_models import DB, File2Document, Knowledgebase
from api.db.db_models import File, Document
from api.db.services.common_service import CommonService
from api.utils import get_uuid
class FileService(CommonService):
model = File
@classmethod
@DB.connection_context()
def get_by_pf_id(cls, tenant_id, pf_id, page_number, items_per_page,
orderby, desc, keywords):
if keywords:
files = cls.model.select().where(
(cls.model.tenant_id == tenant_id)
& (cls.model.parent_id == pf_id), (fn.LOWER(cls.model.name).like(f"%%{keywords.lower()}%%")))
else:
files = cls.model.select().where((cls.model.tenant_id == tenant_id)
& (cls.model.parent_id == pf_id))
count = files.count()
if desc:
files = files.order_by(cls.model.getter_by(orderby).desc())
else:
files = files.order_by(cls.model.getter_by(orderby).asc())
files = files.paginate(page_number, items_per_page)
res_files = list(files.dicts())
for file in res_files:
if file["type"] == FileType.FOLDER.value:
file["size"] = cls.get_folder_size(file["id"])
file['kbs_info'] = []
continue
kbs_info = cls.get_kb_id_by_file_id(file['id'])
file['kbs_info'] = kbs_info
return res_files, count
@classmethod
@DB.connection_context()
def get_kb_id_by_file_id(cls, file_id):
kbs = (cls.model.select(*[Knowledgebase.id, Knowledgebase.name])
.join(File2Document, on=(File2Document.file_id == file_id))
.join(Document, on=(File2Document.document_id == Document.id))
.join(Knowledgebase, on=(Knowledgebase.id == Document.kb_id))
.where(cls.model.id == file_id))
if not kbs: return []
kbs_info_list = []
for kb in list(kbs.dicts()):
kbs_info_list.append({"kb_id": kb['id'], "kb_name": kb['name']})
return kbs_info_list
@classmethod
@DB.connection_context()
def get_by_pf_id_name(cls, id, name):
file = cls.model.select().where((cls.model.parent_id == id) & (cls.model.name == name))
if file.count():
e, file = cls.get_by_id(file[0].id)
if not e:
raise RuntimeError("Database error (File retrieval)!")
return file
return None
@classmethod
@DB.connection_context()
def get_id_list_by_id(cls, id, name, count, res):
if count < len(name):
file = cls.get_by_pf_id_name(id, name[count])
if file:
res.append(file.id)
return cls.get_id_list_by_id(file.id, name, count + 1, res)
else:
return res
else:
return res
@classmethod
@DB.connection_context()
def get_all_innermost_file_ids(cls, folder_id, result_ids):
subfolders = cls.model.select().where(cls.model.parent_id == folder_id)
if subfolders.exists():
for subfolder in subfolders:
cls.get_all_innermost_file_ids(subfolder.id, result_ids)
else:
result_ids.append(folder_id)
return result_ids
@classmethod
@DB.connection_context()
def create_folder(cls, file, parent_id, name, count):
if count > len(name) - 2:
return file
else:
file = cls.insert({
"id": get_uuid(),
"parent_id": parent_id,
"tenant_id": current_user.id,
"created_by": current_user.id,
"name": name[count],
"location": "",
"size": 0,
"type": FileType.FOLDER.value
})
return cls.create_folder(file, file.id, name, count + 1)
@classmethod
@DB.connection_context()
def is_parent_folder_exist(cls, parent_id):
parent_files = cls.model.select().where(cls.model.id == parent_id)
if parent_files.count():
return True
cls.delete_folder_by_pf_id(parent_id)
return False
@classmethod
@DB.connection_context()
def get_root_folder(cls, tenant_id):
file = cls.model.select().where(cls.model.tenant_id == tenant_id and
cls.model.parent_id == cls.model.id)
if not file:
file_id = get_uuid()
file = {
"id": file_id,
"parent_id": file_id,
"tenant_id": tenant_id,
"created_by": tenant_id,
"name": "/",
"type": FileType.FOLDER.value,
"size": 0,
"location": "",
}
cls.save(**file)
else:
file_id = file[0].id
e, file = cls.get_by_id(file_id)
if not e:
raise RuntimeError("Database error (File retrieval)!")
return file
@classmethod
@DB.connection_context()
def get_parent_folder(cls, file_id):
file = cls.model.select().where(cls.model.id == file_id)
if file.count():
e, file = cls.get_by_id(file[0].parent_id)
if not e:
raise RuntimeError("Database error (File retrieval)!")
else:
raise RuntimeError("Database error (File doesn't exist)!")
return file
@classmethod
@DB.connection_context()
def get_all_parent_folders(cls, start_id):
parent_folders = []
current_id = start_id
while current_id:
e, file = cls.get_by_id(current_id)
if file.parent_id != file.id and e:
parent_folders.append(file)
current_id = file.parent_id
else:
parent_folders.append(file)
break
return parent_folders
@classmethod
@DB.connection_context()
def insert(cls, file):
if not cls.save(**file):
raise RuntimeError("Database error (File)!")
e, file = cls.get_by_id(file["id"])
if not e:
raise RuntimeError("Database error (File retrieval)!")
return file
@classmethod
@DB.connection_context()
def delete(cls, file):
return cls.delete_by_id(file.id)
@classmethod
@DB.connection_context()
def delete_by_pf_id(cls, folder_id):
return cls.model.delete().where(cls.model.parent_id == folder_id).execute()
@classmethod
@DB.connection_context()
def delete_folder_by_pf_id(cls, user_id, folder_id):
try:
files = cls.model.select().where((cls.model.tenant_id == user_id)
& (cls.model.parent_id == folder_id))
for file in files:
cls.delete_folder_by_pf_id(user_id, file.id)
return cls.model.delete().where((cls.model.tenant_id == user_id)
& (cls.model.id == folder_id)).execute(),
except Exception as e:
print(e)
raise RuntimeError("Database error (File retrieval)!")
@classmethod
@DB.connection_context()
def get_file_count(cls, tenant_id):
files = cls.model.select(cls.model.id).where(cls.model.tenant_id == tenant_id)
return len(files)
@classmethod
@DB.connection_context()
def get_folder_size(cls, folder_id):
size = 0
def dfs(parent_id):
nonlocal size
for f in cls.model.select(*[cls.model.id, cls.model.size, cls.model.type]).where(
cls.model.parent_id == parent_id, cls.model.id != parent_id):
size += f.size
if f.type == FileType.FOLDER.value:
dfs(f.id)
dfs(folder_id)
return size
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