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644f68de97
### What problem does this PR solve? #1965 ### Type of change - [x] New Feature (non-breaking change which adds functionality) --------- Co-authored-by: Kevin Hu <kevinhu.sh@gmail.com>
86 lines
3.2 KiB
Python
86 lines
3.2 KiB
Python
#
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# Copyright 2024 The InfiniFlow Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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from abc import ABC
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import pandas as pd
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from peewee import MySQLDatabase, PostgresqlDatabase
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from agent.component.base import ComponentBase, ComponentParamBase
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class ExeSQLParam(ComponentParamBase):
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"""
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Define the ExeSQL component parameters.
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"""
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def __init__(self):
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super().__init__()
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self.db_type = "mysql"
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self.database = ""
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self.username = ""
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self.host = ""
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self.port = 3306
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self.password = ""
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self.loop = 3
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self.top_n = 30
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def check(self):
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self.check_valid_value(self.db_type, "Choose DB type", ['mysql', 'postgresql', 'mariadb'])
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self.check_empty(self.database, "Database name")
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self.check_empty(self.username, "database username")
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self.check_empty(self.host, "IP Address")
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self.check_positive_integer(self.port, "IP Port")
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self.check_empty(self.password, "Database password")
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self.check_positive_integer(self.top_n, "Number of records")
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class ExeSQL(ComponentBase, ABC):
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component_name = "ExeSQL"
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def _run(self, history, **kwargs):
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if not hasattr(self, "_loop"):
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setattr(self, "_loop", 0)
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if self._loop >= self._param.loop:
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self._loop = 0
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raise Exception("Maximum loop time exceeds. Can't query the correct data via sql statement.")
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self._loop += 1
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ans = self.get_input()
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ans = "".join(ans["content"]) if "content" in ans else ""
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if not ans:
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return ExeSQL.be_output("SQL statement not found!")
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if self._param.db_type in ["mysql", "mariadb"]:
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db = MySQLDatabase(self._param.database, user=self._param.username, host=self._param.host,
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port=self._param.port, password=self._param.password)
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elif self._param.db_type == 'postgresql':
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db = PostgresqlDatabase(self._param.database, user=self._param.username, host=self._param.host,
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port=self._param.port, password=self._param.password)
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try:
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db.connect()
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query = db.execute_sql(ans)
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sql_res = [{"content": rec + "\n"} for rec in [str(i) for i in query.fetchall()]]
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db.close()
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except Exception as e:
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return ExeSQL.be_output("**Error**:" + str(e))
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if not sql_res:
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return ExeSQL.be_output("No record in the database!")
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sql_res.insert(0, {"content": "Number of records retrieved from the database is " + str(len(sql_res)) + "\n"})
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df = pd.DataFrame(sql_res[0:self._param.top_n + 1])
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return ExeSQL.be_output(df.to_markdown())
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