919cc74e94
Co-authored-by: Deven Patel <deven298@yahoo.com> Co-authored-by: Deshraj Yadav <deshrajdry@gmail.com>
65 lines
2.3 KiB
Python
65 lines
2.3 KiB
Python
import hashlib
|
|
import logging
|
|
from typing import Any, Dict, Optional
|
|
|
|
from embedchain.loaders.base_loader import BaseLoader
|
|
from embedchain.utils import clean_string
|
|
|
|
|
|
class MySQLLoader(BaseLoader):
|
|
def __init__(self, config: Optional[Dict[str, Any]]):
|
|
super().__init__()
|
|
if not config:
|
|
raise ValueError(
|
|
f"Invalid sql config: {config}.",
|
|
"Provide the correct config, refer `https://docs.embedchain.ai/data-sources/mysql`.",
|
|
)
|
|
|
|
self.config = config
|
|
self.connection = None
|
|
self.cursor = None
|
|
self._setup_loader(config=config)
|
|
|
|
def _setup_loader(self, config: Dict[str, Any]):
|
|
try:
|
|
import mysql.connector as sqlconnector
|
|
except ImportError as e:
|
|
raise ImportError(
|
|
"Unable to import required packages for MySQL loader. Run `pip install --upgrade 'embedchain[mysql]'`." # noqa: E501
|
|
) from e
|
|
|
|
try:
|
|
self.connection = sqlconnector.connection.MySQLConnection(**config)
|
|
self.cursor = self.connection.cursor()
|
|
except (sqlconnector.Error, IOError) as err:
|
|
logging.info(f"Connection failed: {err}")
|
|
raise ValueError(
|
|
f"Unable to connect with the given config: {config}.",
|
|
"Please provide the correct configuration to load data from you MySQL DB. \
|
|
Refer `https://docs.embedchain.ai/data-sources/mysql`.",
|
|
)
|
|
|
|
def _check_query(self, query):
|
|
if not isinstance(query, str):
|
|
raise ValueError(
|
|
f"Invalid mysql query: {query}",
|
|
"Provide the valid query to add from mysql, \
|
|
make sure you are following `https://docs.embedchain.ai/data-sources/mysql`",
|
|
)
|
|
|
|
def load_data(self, query):
|
|
self._check_query(query=query)
|
|
data = []
|
|
data_content = []
|
|
self.cursor.execute(query)
|
|
rows = self.cursor.fetchall()
|
|
for row in rows:
|
|
doc_content = clean_string(str(row))
|
|
data.append({"content": doc_content, "meta_data": {"url": query}})
|
|
data_content.append(doc_content)
|
|
doc_id = hashlib.sha256((query + ", ".join(data_content)).encode()).hexdigest()
|
|
return {
|
|
"doc_id": doc_id,
|
|
"data": data,
|
|
}
|