Invoices no longer assign to self.data during filtering step

Instead, all invoice classes will now assign to `self.export_data`
This removes ambiguity on whether the invoices will modify their
internal dataframe and the need to call `copy()` on the processed
dataframe

Author: QuanMPhm

process_report/invoices/NERC_total_invoice.py

@@ -51,9 +51,9 @@ def output_s3_archive_key(self):
         return f"Invoices/{self.invoice_month}/Archive/NERC-{self.invoice_month}-Total-Invoice {util.get_iso8601_time()}.csv"
 
     def _prepare_export(self):
-        self.data = self.data[
+        self.export_data = self.data[
             self.data[invoice.IS_BILLABLE_FIELD] & ~self.data[invoice.MISSING_PI_FIELD]
         ]
-        self.data = self.data[
-            self.data[invoice.INSTITUTION_FIELD].isin(self.INCLUDED_INSTITUTIONS)
+        self.export_data = self.export_data[
+            self.export_data[invoice.INSTITUTION_FIELD].isin(self.INCLUDED_INSTITUTIONS)
         ].copy()

process_report/invoices/billable_invoice.py

@@ -42,7 +42,7 @@ class BillableInvoice(invoice.Invoice):
     ]
 
     def _prepare_export(self):
-        self.data = self.data[
+        self.export_data = self.data[
             self.data[invoice.IS_BILLABLE_FIELD] & ~self.data[invoice.MISSING_PI_FIELD]
         ]
         self.updated_old_pi_df = self.updated_old_pi_df.astype(

process_report/invoices/bu_internal_invoice.py

@@ -24,13 +24,13 @@ class BUInternalInvoice(invoice.Invoice):
     exported_columns_map = {invoice.PI_BALANCE_FIELD: "Balance"}
 
     def _prepare_export(self):
-        self.data = self.data[
+        self.export_data = self.data[
             self.data[invoice.IS_BILLABLE_FIELD] & ~self.data[invoice.MISSING_PI_FIELD]
         ]
-        self.data = self.data[
-            self.data[invoice.INSTITUTION_FIELD] == "Boston University"
+        self.export_data = self.export_data[
+            self.export_data[invoice.INSTITUTION_FIELD] == "Boston University"
         ]
-        self.data = self._sum_project_allocations(self.data)
+        self.export_data = self._sum_project_allocations(self.export_data)
 
     def _sum_project_allocations(self, dataframe):
         """A project may have multiple allocations, and therefore multiple rows

process_report/invoices/invoice.py

@@ -49,6 +49,7 @@ class Invoice:
     name: str
     invoice_month: str
     data: pandas.DataFrame
+    export_data: pandas.DataFrame = None
 
     def process(self):
         self._prepare()
@@ -93,13 +94,13 @@ def _prepare_export(self):
 
     def _filter_columns(self):
         """Filters and renames columns before exporting"""
-        return self.data.copy()[self.export_columns_list].rename(
+        self.export_data = self.export_data[self.export_columns_list].rename(
             columns=self.exported_columns_map
         )
 
     def export(self):
-        export_data = self._filter_columns()
-        export_data.to_csv(self.output_path, index=False)
+        self._filter_columns()
+        self.export_data.to_csv(self.output_path, index=False)
 
     def export_s3(self, s3_bucket):
         s3_bucket.upload_file(self.output_path, self.output_s3_key)

process_report/invoices/lenovo_invoice.py

@@ -19,6 +19,6 @@ class LenovoInvoice(invoice.Invoice):
     exported_columns_map = {invoice.SU_HOURS_FIELD: "SU Hours"}
 
     def _prepare_export(self):
-        self.data = self.data[
+        self.export_data = self.data[
             self.data[invoice.SU_TYPE_FIELD].isin(self.LENOVO_SU_TYPES)
         ]

process_report/invoices/nonbillable_invoice.py

@@ -24,4 +24,4 @@ class NonbillableInvoice(invoice.Invoice):
     ]
 
     def _prepare_export(self):
-        self.data = self.data[~self.data[invoice.IS_BILLABLE_FIELD]]
+        self.export_data = self.data[~self.data[invoice.IS_BILLABLE_FIELD]]

process_report/invoices/pi_specific_invoice.py

@@ -34,10 +34,10 @@ class PIInvoice(invoice.Invoice):
     ]
 
     def _prepare(self):
-        self.data = self.data[
+        self.export_data = self.data[
             self.data[invoice.IS_BILLABLE_FIELD] & ~self.data[invoice.MISSING_PI_FIELD]
         ]
-        self.pi_list = self.data[invoice.PI_FIELD].unique()
+        self.pi_list = self.export_data[invoice.PI_FIELD].unique()
 
     def export(self):
         def _export_pi_invoice(pi):

process_report/process_report.py

@@ -255,12 +255,12 @@ def main():
     lenovo_inv = lenovo_invoice.LenovoInvoice(
         name=args.Lenovo_file,
         invoice_month=invoice_month,
-        data=processed_data.copy(),
+        data=processed_data,
     )
     nonbillable_inv = nonbillable_invoice.NonbillableInvoice(
         name=args.nonbillable_file,
         invoice_month=invoice_month,
-        data=processed_data.copy(),
+        data=processed_data,
         nonbillable_pis=pi,
         nonbillable_projects=projects,
     )
@@ -271,25 +271,25 @@ def main():
     billable_inv = billable_invoice.BillableInvoice(
         name=args.output_file,
         invoice_month=invoice_month,
-        data=processed_data.copy(),
+        data=processed_data,
         old_pi_filepath=old_pi_file,
         updated_old_pi_df=new_pi_credit_proc.updated_old_pi_df,
     )
 
     nerc_total_inv = NERC_total_invoice.NERCTotalInvoice(
         name=args.NERC_total_invoice_file,
         invoice_month=invoice_month,
-        data=processed_data.copy(),
+        data=processed_data,
     )
 
     bu_internal_inv = bu_internal_invoice.BUInternalInvoice(
         name=args.BU_invoice_file,
         invoice_month=invoice_month,
-        data=processed_data.copy(),
+        data=processed_data,
     )
 
     pi_inv = pi_specific_invoice.PIInvoice(
-        name=args.output_folder, invoice_month=invoice_month, data=processed_data.copy()
+        name=args.output_folder, invoice_month=invoice_month, data=processed_data
     )
 
     util.process_and_export_invoices(