starting a fresh tidy

This commit is contained in:
2026-07-26 10:34:18 +01:00
parent 5af82e5753
commit 33cbc5c6ed
14 changed files with 985 additions and 186 deletions
+27 -25
View File
@@ -1,19 +1,21 @@
import polars as pl
import logging
import os
import polars as pl
class Facts:
def __init__(self, config):
def __init__(self, config,logger):
self.config = config
self.base_file_path = self.config['base_data_path']
self.logger = logger
os.makedirs(self.config['warehouse_data_path'], exist_ok=True)
def get_full_file_path(self, file_name):
return f"{self.base_file_path}/{file_name}"
class FactTransactions(Facts):
def __init__(self, config):
super().__init__(config)
def __init__(self, config,logger):
super().__init__(config,logger)
self.file_path = self.get_full_file_path('transactions.parquet')
self.transform()
@@ -21,7 +23,7 @@ class FactTransactions(Facts):
try:
source_transactions = pl.read_parquet(self.file_path)
except FileNotFoundError:
logging.error("The transactions DataFrame does not exist")
self.logger.error("The transactions DataFrame does not exist")
return
try:
@@ -39,16 +41,16 @@ class FactTransactions(Facts):
"transfer_account_id"
])
except Exception as e:
logging.error(f"Failed to select columns from the transactions DataFrame: {e}")
self.logger.error(f"Failed to select columns from the transactions DataFrame: {e}")
return
logging.info("Transforming the transactions DataFrame")
self.logger.info("Transforming the transactions DataFrame")
try:
resolve_transaction_dates = base_transactions.with_columns([
pl.col("date").str.strptime(pl.Date, format="%Y-%m-%d").alias("date")
])
except Exception as e:
logging.error(f"Failed to covert the date to date format: {e}")
self.logger.error(f"Failed to covert the date to date format: {e}")
return
try:
@@ -70,22 +72,22 @@ class FactTransactions(Facts):
drop_transaction_columns = fix_transaction_values.drop([
"id", "date", "amount"
])
except Exception as e:
logging.error(f"Failed to transform the transactions DataFrame: {e}")
self.logger.error(f"Failed to transform the transactions DataFrame: {e}")
return
# Write the DataFrame to a new parquet file
logging.info("Writing the transformed transactions DataFrame to parquet file")
self.logger.info("Writing the transformed transactions DataFrame to parquet file")
try:
drop_transaction_columns.write_parquet(
self.config['warehouse_data_path'] + '/transactions.parquet'
)
except Exception as e:
logging.error(f"Failed to write the transformed transactions DataFrame: {e}")
self.logger.error(f"Failed to write the transformed transactions DataFrame: {e}")
class FactScheduledTransactions(Facts):
def __init__(self, config):
super().__init__(config)
def __init__(self, config,logger):
super().__init__(config,logger)
self.file_path = self.get_full_file_path('scheduled_transactions.parquet')
self.transform()
@@ -93,7 +95,7 @@ class FactScheduledTransactions(Facts):
try:
source_scheduled = pl.read_parquet(self.file_path)
except FileNotFoundError:
logging.error("The scheduled transactions DataFrame does not exist")
self.logger.error("The scheduled transactions DataFrame does not exist")
return
try:
@@ -111,7 +113,7 @@ class FactScheduledTransactions(Facts):
"transfer_account_id"
])
except Exception as e:
logging.error(f"Failed to select columns from the scheduled transactions DataFrame: {e}")
self.logger.error(f"Failed to select columns from the scheduled transactions DataFrame: {e}")
return
try:
@@ -120,10 +122,10 @@ class FactScheduledTransactions(Facts):
pl.col("date_next").str.strptime(pl.Date, format="%Y-%m-%d").alias("date_next")
])
except Exception as e:
logging.error(f"Failed to covert the date to date format: {e}")
self.logger.error(f"Failed to covert the date to date format: {e}")
return
logging.info("Transforming the scheduled transactions DataFrame")
self.logger.info("Transforming the scheduled transactions DataFrame")
try:
add_scheduled_prefix = resolve_scheduled_dates.with_columns([
pl.col("id").alias("scheduled_transaction_id")
@@ -141,10 +143,10 @@ class FactScheduledTransactions(Facts):
"id", "amount"
])
except Exception as e:
logging.error(f"Failed to transform the scheduled transactions DataFrame: {e}")
self.logger.error(f"Failed to transform the scheduled transactions DataFrame: {e}")
return
logging.info("Writing the transformed scheduled transactions DataFrame to parquet file")
self.logger.info("Writing the transformed scheduled transactions DataFrame to parquet file")
try:
drop_scheduled_columns.write_parquet(self.config['warehouse_data_path'] + '/scheduled_transactions.parquet')
except Exception as e:
logging.error(f"Failed to write the transformed scheduled transactions DataFrame: {e}")
self.logger.error(f"Failed to write the transformed scheduled transactions DataFrame: {e}")