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wip #65

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250d87f
wip
hellpe Jul 16, 2025
25d9cf2
wip
hellpe Jul 16, 2025
0939479
wip
hellpe Jul 16, 2025
5649f0d
first completed implementation
hellpe Jul 18, 2025
0720205
fix task
hellpe Jul 18, 2025
cdbe762
fix sql query
hellpe Jul 18, 2025
faa9c21
wip
hellpe Jul 18, 2025
7c15e6e
migrate to URL method from SQLAlchemy
hellpe Jul 18, 2025
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26 changes: 26 additions & 0 deletions dags/cdc_grist_sync.py
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Original file line number Diff line number Diff line change
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import pendulum
from airflow import DAG
from airflow.operators.python import PythonOperator
from data_utils.alerting.alerting import task_failed
from data_utils.grist.grist_push import fetch_and_dump_cdc_data
from clients import clients

connection_name="main_db_cluster_name"

with DAG(
dag_id='cdc_grist_sync',
default_args={'owner': 'airflow'},
schedule='45 0 * * *',
start_date=pendulum.datetime(2024, 11, 15, tz="UTC"),
catchup=False
) as dag:

dump_grist_data = PythonOperator(
task_id='fetch_and_dump_cdc_data',
python_callable=fetch_and_dump_cdc_data,
op_args=[connection_name, clients],
dag=dag,
on_failure_callback=task_failed,
)

dump_grist_data
63 changes: 63 additions & 0 deletions dags/data_utils/grist/grist_push.py
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from airflow.hooks.base import BaseHook
from grist_api import GristDocAPI
from sqlalchemy import text
from ..postgres_helper.postgres_helper import get_postgres_connection
from airflow.models import Variable

# Retrieve the connection object using Airflow's BaseHook
connection = BaseHook.get_connection("grist_osp")
grist_api_key = connection.password
grist_server = connection.host
grist_cdc_doc_id = Variable.get("grist_cdc_doc_id")

# Get api key from your Profile Settings, and run with GRIST_API_KEY=<key>
api = GristDocAPI(grist_cdc_doc_id, server=grist_server, api_key=grist_api_key)

table_name = "Propositions_brutes"

def retrieve_sql_data(engine):
query = f"""
SELECT
id,
decidim_participatory_space_slug,
title,
body,
url,
translated_state,
first_category,
comments_count,
endorsements_count,
CURRENT_TIMESTAMP(3) as imported_at
FROM prod.proposals
ORDER BY id
"""
with engine.connect() as connection:
result = connection.execute(text(query))
rows_to_dump = result.all()
connection.close()

return rows_to_dump

def dump_to_grist(rows_to_dump):
new_data = rows_to_dump
key_cols = [["proposal_id", "id", "Numeric"]]
other_cols = [
("decidim_participatory_space_slug", "decidim_participatory_space_slug", "Text"),
("title", "title", "Text"),
("body", "body", "Text"),
("url", "url", "Text"),
("translated_state", "translated_state", "Text"),
("category", "first_category", "Text"),
("comments_count", "comments_count", "Numeric"),
("endorsements_count", "endorsements_count", "Numeric"),
("imported_at", "imported_at", "DateTime")
]
api.sync_table(table_name, new_data, key_cols, other_cols, grist_fetch=None, chunk_size=200, filters=None)

def fetch_and_dump_cdc_data(connection_name, clients):

client = "cdc"
db_name = clients[client]["postgres"]["database_name"]
engine = get_postgres_connection(connection_name, db_name)
rows_to_dump = retrieve_sql_data(engine)
dump_to_grist(rows_to_dump)
19 changes: 10 additions & 9 deletions dags/data_utils/postgres_helper/postgres_helper.py
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Original file line number Diff line number Diff line change
@@ -1,23 +1,24 @@
from sqlalchemy import create_engine, text
from sqlalchemy import create_engine, URL, text
from airflow.hooks.base import BaseHook
import logging



def get_postgres_connection(connection_name, database):
"""Extracts PostgreSQL connection details from Airflow and establishes a connection."""
try:
# Retrieve the connection object using Airflow's BaseHook
connection = BaseHook.get_connection(connection_name)

# Extract connection details
user = connection.login
password = connection.password
host = connection.host
port = connection.port
url_object = URL.create(
"postgresql",
username = connection.login,
password = connection.password,
host = connection.host,
port = connection.port,
database = database,
)

# Create the SQLAlchemy engine
return create_engine(f"postgresql://{user}:{password}@{host}:{port}/{database}")
return create_engine(url_object)


except Exception as e:
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