dify/api/models/dataset.py
2023-08-12 00:57:00 +08:00

445 lines
17 KiB
Python

import json
import pickle
from json import JSONDecodeError
from sqlalchemy import func
from sqlalchemy.dialects.postgresql import UUID
from extensions.ext_database import db
from models.account import Account
from models.model import App, UploadFile
class Dataset(db.Model):
__tablename__ = 'datasets'
__table_args__ = (
db.PrimaryKeyConstraint('id', name='dataset_pkey'),
db.Index('dataset_tenant_idx', 'tenant_id'),
)
INDEXING_TECHNIQUE_LIST = ['high_quality', 'economy']
id = db.Column(UUID, server_default=db.text('uuid_generate_v4()'))
tenant_id = db.Column(UUID, nullable=False)
name = db.Column(db.String(255), nullable=False)
description = db.Column(db.Text, nullable=True)
provider = db.Column(db.String(255), nullable=False,
server_default=db.text("'vendor'::character varying"))
permission = db.Column(db.String(255), nullable=False,
server_default=db.text("'only_me'::character varying"))
data_source_type = db.Column(db.String(255))
indexing_technique = db.Column(db.String(255), nullable=True)
index_struct = db.Column(db.Text, nullable=True)
created_by = db.Column(UUID, nullable=False)
created_at = db.Column(db.DateTime, nullable=False,
server_default=db.text('CURRENT_TIMESTAMP(0)'))
updated_by = db.Column(UUID, nullable=True)
updated_at = db.Column(db.DateTime, nullable=False,
server_default=db.text('CURRENT_TIMESTAMP(0)'))
@property
def dataset_keyword_table(self):
dataset_keyword_table = db.session.query(DatasetKeywordTable).filter(
DatasetKeywordTable.dataset_id == self.id).first()
if dataset_keyword_table:
return dataset_keyword_table
return None
@property
def index_struct_dict(self):
return json.loads(self.index_struct) if self.index_struct else None
@property
def created_by_account(self):
return Account.query.get(self.created_by)
@property
def latest_process_rule(self):
return DatasetProcessRule.query.filter(DatasetProcessRule.dataset_id == self.id) \
.order_by(DatasetProcessRule.created_at.desc()).first()
@property
def app_count(self):
return db.session.query(func.count(AppDatasetJoin.id)).filter(AppDatasetJoin.dataset_id == self.id).scalar()
@property
def document_count(self):
return db.session.query(func.count(Document.id)).filter(Document.dataset_id == self.id).scalar()
@property
def available_document_count(self):
return db.session.query(func.count(Document.id)).filter(
Document.dataset_id == self.id,
Document.indexing_status == 'completed',
Document.enabled == True,
Document.archived == False
).scalar()
@property
def available_segment_count(self):
return db.session.query(func.count(DocumentSegment.id)).filter(
DocumentSegment.dataset_id == self.id,
DocumentSegment.status == 'completed',
DocumentSegment.enabled == True
).scalar()
@property
def word_count(self):
return Document.query.with_entities(func.coalesce(func.sum(Document.word_count))) \
.filter(Document.dataset_id == self.id).scalar()
class DatasetProcessRule(db.Model):
__tablename__ = 'dataset_process_rules'
__table_args__ = (
db.PrimaryKeyConstraint('id', name='dataset_process_rule_pkey'),
db.Index('dataset_process_rule_dataset_id_idx', 'dataset_id'),
)
id = db.Column(UUID, nullable=False,
server_default=db.text('uuid_generate_v4()'))
dataset_id = db.Column(UUID, nullable=False)
mode = db.Column(db.String(255), nullable=False,
server_default=db.text("'automatic'::character varying"))
rules = db.Column(db.Text, nullable=True)
created_by = db.Column(UUID, nullable=False)
created_at = db.Column(db.DateTime, nullable=False,
server_default=db.text('CURRENT_TIMESTAMP(0)'))
MODES = ['automatic', 'custom']
PRE_PROCESSING_RULES = ['remove_stopwords', 'remove_extra_spaces', 'remove_urls_emails']
AUTOMATIC_RULES = {
'pre_processing_rules': [
{'id': 'remove_extra_spaces', 'enabled': True},
{'id': 'remove_urls_emails', 'enabled': False}
],
'segmentation': {
'delimiter': '\n',
'max_tokens': 1000
}
}
def to_dict(self):
return {
'id': self.id,
'dataset_id': self.dataset_id,
'mode': self.mode,
'rules': self.rules_dict,
'created_by': self.created_by,
'created_at': self.created_at,
}
@property
def rules_dict(self):
try:
return json.loads(self.rules) if self.rules else None
except JSONDecodeError:
return None
class Document(db.Model):
__tablename__ = 'documents'
__table_args__ = (
db.PrimaryKeyConstraint('id', name='document_pkey'),
db.Index('document_dataset_id_idx', 'dataset_id'),
db.Index('document_is_paused_idx', 'is_paused'),
)
# initial fields
id = db.Column(UUID, nullable=False,
server_default=db.text('uuid_generate_v4()'))
tenant_id = db.Column(UUID, nullable=False)
dataset_id = db.Column(UUID, nullable=False)
position = db.Column(db.Integer, nullable=False)
data_source_type = db.Column(db.String(255), nullable=False)
data_source_info = db.Column(db.Text, nullable=True)
dataset_process_rule_id = db.Column(UUID, nullable=True)
batch = db.Column(db.String(255), nullable=False)
name = db.Column(db.String(255), nullable=False)
created_from = db.Column(db.String(255), nullable=False)
created_by = db.Column(UUID, nullable=False)
created_api_request_id = db.Column(UUID, nullable=True)
created_at = db.Column(db.DateTime, nullable=False,
server_default=db.text('CURRENT_TIMESTAMP(0)'))
# start processing
processing_started_at = db.Column(db.DateTime, nullable=True)
# parsing
file_id = db.Column(db.Text, nullable=True)
word_count = db.Column(db.Integer, nullable=True)
parsing_completed_at = db.Column(db.DateTime, nullable=True)
# cleaning
cleaning_completed_at = db.Column(db.DateTime, nullable=True)
# split
splitting_completed_at = db.Column(db.DateTime, nullable=True)
# indexing
tokens = db.Column(db.Integer, nullable=True)
indexing_latency = db.Column(db.Float, nullable=True)
completed_at = db.Column(db.DateTime, nullable=True)
# pause
is_paused = db.Column(db.Boolean, nullable=True, server_default=db.text('false'))
paused_by = db.Column(UUID, nullable=True)
paused_at = db.Column(db.DateTime, nullable=True)
# error
error = db.Column(db.Text, nullable=True)
stopped_at = db.Column(db.DateTime, nullable=True)
# basic fields
indexing_status = db.Column(db.String(
255), nullable=False, server_default=db.text("'waiting'::character varying"))
enabled = db.Column(db.Boolean, nullable=False,
server_default=db.text('true'))
disabled_at = db.Column(db.DateTime, nullable=True)
disabled_by = db.Column(UUID, nullable=True)
archived = db.Column(db.Boolean, nullable=False,
server_default=db.text('false'))
archived_reason = db.Column(db.String(255), nullable=True)
archived_by = db.Column(UUID, nullable=True)
archived_at = db.Column(db.DateTime, nullable=True)
updated_at = db.Column(db.DateTime, nullable=False,
server_default=db.text('CURRENT_TIMESTAMP(0)'))
doc_type = db.Column(db.String(40), nullable=True)
doc_metadata = db.Column(db.JSON, nullable=True)
doc_form = db.Column(db.String(
255), nullable=False, server_default=db.text("'text_model'::character varying"))
DATA_SOURCES = ['upload_file', 'notion_import']
@property
def display_status(self):
status = None
if self.indexing_status == 'waiting':
status = 'queuing'
elif self.indexing_status not in ['completed', 'error', 'waiting'] and self.is_paused:
status = 'paused'
elif self.indexing_status in ['parsing', 'cleaning', 'splitting', 'indexing']:
status = 'indexing'
elif self.indexing_status == 'error':
status = 'error'
elif self.indexing_status == 'completed' and not self.archived and self.enabled:
status = 'available'
elif self.indexing_status == 'completed' and not self.archived and not self.enabled:
status = 'disabled'
elif self.indexing_status == 'completed' and self.archived:
status = 'archived'
return status
@property
def data_source_info_dict(self):
if self.data_source_info:
try:
data_source_info_dict = json.loads(self.data_source_info)
except JSONDecodeError:
data_source_info_dict = {}
return data_source_info_dict
return None
@property
def data_source_detail_dict(self):
if self.data_source_info:
if self.data_source_type == 'upload_file':
data_source_info_dict = json.loads(self.data_source_info)
file_detail = db.session.query(UploadFile). \
filter(UploadFile.id == data_source_info_dict['upload_file_id']). \
one_or_none()
if file_detail:
return {
'upload_file': {
'id': file_detail.id,
'name': file_detail.name,
'size': file_detail.size,
'extension': file_detail.extension,
'mime_type': file_detail.mime_type,
'created_by': file_detail.created_by,
'created_at': file_detail.created_at.timestamp()
}
}
elif self.data_source_type == 'notion_import':
return json.loads(self.data_source_info)
return {}
@property
def average_segment_length(self):
if self.word_count and self.word_count != 0 and self.segment_count and self.segment_count != 0:
return self.word_count // self.segment_count
return 0
@property
def dataset_process_rule(self):
if self.dataset_process_rule_id:
return DatasetProcessRule.query.get(self.dataset_process_rule_id)
return None
@property
def dataset(self):
return db.session.query(Dataset).filter(Dataset.id == self.dataset_id).one_or_none()
@property
def segment_count(self):
return DocumentSegment.query.filter(DocumentSegment.document_id == self.id).count()
@property
def hit_count(self):
return DocumentSegment.query.with_entities(func.coalesce(func.sum(DocumentSegment.hit_count))) \
.filter(DocumentSegment.document_id == self.id).scalar()
class DocumentSegment(db.Model):
__tablename__ = 'document_segments'
__table_args__ = (
db.PrimaryKeyConstraint('id', name='document_segment_pkey'),
db.Index('document_segment_dataset_id_idx', 'dataset_id'),
db.Index('document_segment_document_id_idx', 'document_id'),
db.Index('document_segment_tenant_dataset_idx', 'dataset_id', 'tenant_id'),
db.Index('document_segment_tenant_document_idx', 'document_id', 'tenant_id'),
db.Index('document_segment_dataset_node_idx', 'dataset_id', 'index_node_id'),
)
# initial fields
id = db.Column(UUID, nullable=False,
server_default=db.text('uuid_generate_v4()'))
tenant_id = db.Column(UUID, nullable=False)
dataset_id = db.Column(UUID, nullable=False)
document_id = db.Column(UUID, nullable=False)
position = db.Column(db.Integer, nullable=False)
content = db.Column(db.Text, nullable=False)
answer = db.Column(db.Text, nullable=True)
word_count = db.Column(db.Integer, nullable=False)
tokens = db.Column(db.Integer, nullable=False)
# indexing fields
keywords = db.Column(db.JSON, nullable=True)
index_node_id = db.Column(db.String(255), nullable=True)
index_node_hash = db.Column(db.String(255), nullable=True)
# basic fields
hit_count = db.Column(db.Integer, nullable=False, default=0)
enabled = db.Column(db.Boolean, nullable=False,
server_default=db.text('true'))
disabled_at = db.Column(db.DateTime, nullable=True)
disabled_by = db.Column(UUID, nullable=True)
status = db.Column(db.String(255), nullable=False,
server_default=db.text("'waiting'::character varying"))
created_by = db.Column(UUID, nullable=False)
created_at = db.Column(db.DateTime, nullable=False,
server_default=db.text('CURRENT_TIMESTAMP(0)'))
updated_by = db.Column(UUID, nullable=True)
updated_at = db.Column(db.DateTime, nullable=False,
server_default=db.text('CURRENT_TIMESTAMP(0)'))
indexing_at = db.Column(db.DateTime, nullable=True)
completed_at = db.Column(db.DateTime, nullable=True)
error = db.Column(db.Text, nullable=True)
stopped_at = db.Column(db.DateTime, nullable=True)
@property
def dataset(self):
return db.session.query(Dataset).filter(Dataset.id == self.dataset_id).first()
@property
def document(self):
return db.session.query(Document).filter(Document.id == self.document_id).first()
@property
def previous_segment(self):
return db.session.query(DocumentSegment).filter(
DocumentSegment.document_id == self.document_id,
DocumentSegment.position == self.position - 1
).first()
@property
def next_segment(self):
return db.session.query(DocumentSegment).filter(
DocumentSegment.document_id == self.document_id,
DocumentSegment.position == self.position + 1
).first()
class AppDatasetJoin(db.Model):
__tablename__ = 'app_dataset_joins'
__table_args__ = (
db.PrimaryKeyConstraint('id', name='app_dataset_join_pkey'),
db.Index('app_dataset_join_app_dataset_idx', 'dataset_id', 'app_id'),
)
id = db.Column(UUID, primary_key=True, nullable=False, server_default=db.text('uuid_generate_v4()'))
app_id = db.Column(UUID, nullable=False)
dataset_id = db.Column(UUID, nullable=False)
created_at = db.Column(db.DateTime, nullable=False, server_default=db.func.current_timestamp())
@property
def app(self):
return App.query.get(self.app_id)
class DatasetQuery(db.Model):
__tablename__ = 'dataset_queries'
__table_args__ = (
db.PrimaryKeyConstraint('id', name='dataset_query_pkey'),
db.Index('dataset_query_dataset_id_idx', 'dataset_id'),
)
id = db.Column(UUID, primary_key=True, nullable=False, server_default=db.text('uuid_generate_v4()'))
dataset_id = db.Column(UUID, nullable=False)
content = db.Column(db.Text, nullable=False)
source = db.Column(db.String(255), nullable=False)
source_app_id = db.Column(UUID, nullable=True)
created_by_role = db.Column(db.String, nullable=False)
created_by = db.Column(UUID, nullable=False)
created_at = db.Column(db.DateTime, nullable=False, server_default=db.func.current_timestamp())
class DatasetKeywordTable(db.Model):
__tablename__ = 'dataset_keyword_tables'
__table_args__ = (
db.PrimaryKeyConstraint('id', name='dataset_keyword_table_pkey'),
db.Index('dataset_keyword_table_dataset_id_idx', 'dataset_id'),
)
id = db.Column(UUID, primary_key=True, server_default=db.text('uuid_generate_v4()'))
dataset_id = db.Column(UUID, nullable=False, unique=True)
keyword_table = db.Column(db.Text, nullable=False)
@property
def keyword_table_dict(self):
class SetDecoder(json.JSONDecoder):
def __init__(self, *args, **kwargs):
super().__init__(object_hook=self.object_hook, *args, **kwargs)
def object_hook(self, dct):
if isinstance(dct, dict):
for keyword, node_idxs in dct.items():
if isinstance(node_idxs, list):
dct[keyword] = set(node_idxs)
return dct
return json.loads(self.keyword_table, cls=SetDecoder) if self.keyword_table else None
class Embedding(db.Model):
__tablename__ = 'embeddings'
__table_args__ = (
db.PrimaryKeyConstraint('id', name='embedding_pkey'),
db.UniqueConstraint('model_name', 'hash', name='embedding_hash_idx')
)
id = db.Column(UUID, primary_key=True, server_default=db.text('uuid_generate_v4()'))
model_name = db.Column(db.String(40), nullable=False,
server_default=db.text("'text-embedding-ada-002'::character varying"))
hash = db.Column(db.String(64), nullable=False)
embedding = db.Column(db.LargeBinary, nullable=False)
created_at = db.Column(db.DateTime, nullable=False, server_default=db.text('CURRENT_TIMESTAMP(0)'))
def set_embedding(self, embedding_data: list[float]):
self.embedding = pickle.dumps(embedding_data, protocol=pickle.HIGHEST_PROTOCOL)
def get_embedding(self) -> list[float]:
return pickle.loads(self.embedding)