Querying a Snowflake table using filters in Streamlit app

Using Streamlit
,
1

Hello,

I am trying to create a Steamlit app in Snowflake that allows our business users to edit a table in Snowflake via the app.

The app needs to have at least 2 functionalities below:

  1. You need to filter your Snowflake table based on the user’s selection of aggregator and country.
  2. Allow users to edit the filtered data and reflect those changes back in Snowflake.

Bonus: I would also like to add a Download button to allow business users to download the updated data after the edits.

Below is what I currently have from my research. However, when I ran the code, I got the following error:

AttributeError: ‘Session’ object has no attribute ‘cursor’

Here is the code:

import pandas as pd
import streamlit as st
import time
from snowflake.snowpark import Session
from snowflake.snowpark.context import get_active_session

session = get_active_session()

def get_distinct_values(table, column):
    query = f"SELECT DISTINCT {column} FROM {table}"
    return pd.read_sql(query, session)

def get_filtered_data(table, aggregator, country):
    query = f"SELECT * FROM {table} WHERE AGGREGATOR = {aggregator} AND COUNTRY_NAME = {country}"
    return pd.read_sql(query, session)

# Fetch distinct values for filtering
distinct_aggregators = get_distinct_values('STORE_MAPPING', 'AGGREGATOR')
distinct_countries = get_distinct_values('STORE_MAPPING', 'COUNTRY_NAME')

# User selection
select_aggregator = st.selectbox("Select Aggregator", distinct_aggregators['AGGREGATOR'])
select_country = st.selectbox("Select Country", distinct_countries['COUNTRY_NAME'])

# Filter data based on selection
filtered_df = get_filtered_data('STORE_MAPPING', select_aggregator, select_country)
st.write(filtered_df)  # Display the filtered dataframe

# Editable form
st.header(":pencil2: Edit Data")
with st.form("Table write"):
    df_edited = st.experimental_data_editor(filtered_df, use_container_width=True)
    write_to_snowflake = st.form_submit_button("Update")

Could you please let me know what I did wrong? Thank you in advance!

2

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