Merge pull request #141 from QuanMPhm/139/remove_magic

Removed "Project" magic string from `bu_internal_invoice.py`

Author: knikolla

process_report/invoices/bu_internal_invoice.py

@@ -14,7 +14,7 @@ class BUInternalInvoice(invoice.Invoice):
     export_columns_list = [
         invoice.INVOICE_DATE_FIELD,
         invoice.PI_FIELD,
-        "Project",
+        invoice.PROJECT_NAME_FIELD,
         invoice.GROUP_NAME_FIELD,
         invoice.GROUP_INSTITUTION_FIELD,
         invoice.GROUP_BALANCE_FIELD,
@@ -40,17 +40,19 @@ def _sum_project_allocations(self, dataframe):
         """A project may have multiple allocations, and therefore multiple rows
         in the raw invoices. For BU-Internal invoice, we only want 1 row for
         each unique project, summing up its allocations' costs"""
-        project_list = dataframe["Project"].unique()
-        data_no_dup = dataframe.drop_duplicates("Project", inplace=False)
+        project_list = dataframe[invoice.PROJECT_NAME_FIELD].unique()
+        data_no_dup = dataframe.drop_duplicates(
+            invoice.PROJECT_NAME_FIELD, inplace=False
+        )
         sum_fields = [
             invoice.COST_FIELD,
             invoice.CREDIT_FIELD,
             invoice.SUBSIDY_FIELD,
             invoice.PI_BALANCE_FIELD,
         ]
         for project in project_list:
-            project_mask = dataframe["Project"] == project
-            no_dup_project_mask = data_no_dup["Project"] == project
+            project_mask = dataframe[invoice.PROJECT_NAME_FIELD] == project
+            no_dup_project_mask = data_no_dup[invoice.PROJECT_NAME_FIELD] == project
 
             sum_fields_sums = dataframe[project_mask][sum_fields].sum().values
             data_no_dup.loc[no_dup_project_mask, sum_fields] = sum_fields_sums