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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 abc import ABC
import re
from copy import deepcopy
import pandas as pd
import pymysql
import psycopg2
from agent.component import GenerateParam, Generate
import pyodbc
import logging
class ExeSQLParam(GenerateParam):
"""
Define the ExeSQL component parameters.
"""
def __init__(self):
super().__init__()
self.db_type = "mysql"
self.database = ""
self.username = ""
self.host = ""
self.port = 3306
self.password = ""
self.loop = 3
self.top_n = 30
def check(self):
super().check()
self.check_valid_value(self.db_type, "Choose DB type", ['mysql', 'postgresql', 'mariadb', 'mssql'])
self.check_empty(self.database, "Database name")
self.check_empty(self.username, "database username")
self.check_empty(self.host, "IP Address")
self.check_positive_integer(self.port, "IP Port")
self.check_empty(self.password, "Database password")
self.check_positive_integer(self.top_n, "Number of records")
if self.database == "rag_flow":
if self.host == "ragflow-mysql":
raise ValueError("For the security reason, it dose not support database named rag_flow.")
if self.password == "infini_rag_flow":
raise ValueError("For the security reason, it dose not support database named rag_flow.")
class ExeSQL(Generate, ABC):
component_name = "ExeSQL"
def _refactor(self, ans):
ans = re.sub(r"<think>.*</think>", "", ans, flags=re.DOTALL)
match = re.search(r"```sql\s*(.*?)\s*```", ans, re.DOTALL)
if match:
ans = match.group(1) # Query content
return ans
else:
print("no markdown")
ans = re.sub(r'^.*?SELECT ', 'SELECT ', (ans), flags=re.IGNORECASE)
ans = re.sub(r';.*?SELECT ', '; SELECT ', ans, flags=re.IGNORECASE)
ans = re.sub(r';[^;]*$', r';', ans)
if not ans:
raise Exception("SQL statement not found!")
return ans
def _run(self, history, **kwargs):
ans = self.get_input()
ans = "".join([str(a) for a in ans["content"]]) if "content" in ans else ""
ans = self._refactor(ans)
if self._param.db_type in ["mysql", "mariadb"]:
db = pymysql.connect(db=self._param.database, user=self._param.username, host=self._param.host,
port=self._param.port, password=self._param.password)
elif self._param.db_type == 'postgresql':
db = psycopg2.connect(dbname=self._param.database, user=self._param.username, host=self._param.host,
port=self._param.port, password=self._param.password)
elif self._param.db_type == 'mssql':
conn_str = (
r'DRIVER={ODBC Driver 17 for SQL Server};'
r'SERVER=' + self._param.host + ',' + str(self._param.port) + ';'
r'DATABASE=' + self._param.database + ';'
r'UID=' + self._param.username + ';'
r'PWD=' + self._param.password
)
db = pyodbc.connect(conn_str)
try:
cursor = db.cursor()
except Exception as e:
raise Exception("Database Connection Failed! \n" + str(e))
if not hasattr(self, "_loop"):
setattr(self, "_loop", 0)
self._loop += 1
input_list = re.split(r';', ans.replace(r"\n", " "))
sql_res = []
for i in range(len(input_list)):
single_sql = input_list[i]
while self._loop <= self._param.loop:
self._loop += 1
if not single_sql:
break
try:
cursor.execute(single_sql)
if cursor.rowcount == 0:
sql_res.append({"content": "No record in the database!"})
break
if self._param.db_type == 'mssql':
single_res = pd.DataFrame.from_records(cursor.fetchmany(self._param.top_n),
columns=[desc[0] for desc in cursor.description])
else:
single_res = pd.DataFrame([i for i in cursor.fetchmany(self._param.top_n)])
single_res.columns = [i[0] for i in cursor.description]
sql_res.append({"content": single_res.to_markdown(index=False, floatfmt=".6f")})
break
except Exception as e:
single_sql = self._regenerate_sql(single_sql, str(e), **kwargs)
single_sql = self._refactor(single_sql)
if self._loop > self._param.loop:
sql_res.append({"content": "Can't query the correct data via SQL statement."})
db.close()
if not sql_res:
return ExeSQL.be_output("")
return pd.DataFrame(sql_res)
def _regenerate_sql(self, failed_sql, error_message, **kwargs):
prompt = f'''
## You are the Repair SQL Statement Helper, please modify the original SQL statement based on the SQL query error report.
## The original SQL statement is as follows:{failed_sql}.
## The contents of the SQL query error report is as follows:{error_message}.
## Answer only the modified SQL statement. Please do not give any explanation, just answer the code.
'''
self._param.prompt = prompt
kwargs_ = deepcopy(kwargs)
kwargs_["stream"] = False
response = Generate._run(self, [], **kwargs_)
try:
regenerated_sql = response.loc[0, "content"]
return regenerated_sql
except Exception as e:
logging.error(f"Failed to regenerate SQL: {e}")
return None
def debug(self, **kwargs):
return self._run([], **kwargs)
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