l10n_fr_fec: float representation when summing

Before this commit, it may happen that the the grouped account move lines
sum will be business-wise "zero" but that its representation in SQL will not be
rather, it will be equal to "10^[-high number]"

After this commit, we round the sum to the number of digits of the company's currency
to see if it is equal to zero, or not.

We also need to filter out the specific case of unaffected earnings

OPW 1942177

closes odoo#31755

Signed-off-by: Nicolas Martinelli (nim) <nim@odoo.com>

addons/l10n_fr_fec/wizard/account_fr_fec.py

@@ -9,7 +9,7 @@
 
 from odoo import api, fields, models, _
 from odoo.exceptions import Warning
-from odoo.tools import pycompat, DEFAULT_SERVER_DATE_FORMAT
+from odoo.tools import float_is_zero, pycompat, DEFAULT_SERVER_DATE_FORMAT
 
 
 class AccountFrFec(models.TransientModel):
@@ -170,14 +170,16 @@ def generate_fec(self):
 
         sql_query += '''
         GROUP BY aml.account_id, aat.type
-        HAVING sum(aml.balance) != 0
+        HAVING round(sum(aml.balance), %s) != 0
         AND aat.type not in ('receivable', 'payable')
         '''
         formatted_date_from = self.date_from.replace('-', '')
         date_from = datetime.strptime(self.date_from, DEFAULT_SERVER_DATE_FORMAT)
         formatted_date_year = date_from.year
+        currency_digits = 2
+
         self._cr.execute(
-            sql_query, (formatted_date_year, formatted_date_from, formatted_date_from, formatted_date_from, self.date_from, company.id))
+            sql_query, (formatted_date_year, formatted_date_from, formatted_date_from, formatted_date_from, self.date_from, company.id, currency_digits))
 
         for row in self._cr.fetchall():
             listrow = list(row)
@@ -190,6 +192,8 @@ def generate_fec(self):
                     current_amount = float(listrow[11].replace(',', '.')) - float(listrow[12].replace(',', '.'))
                     unaffected_earnings_amount = float(unaffected_earnings_results[11].replace(',', '.')) - float(unaffected_earnings_results[12].replace(',', '.'))
                     listrow_amount = current_amount + unaffected_earnings_amount
+                    if float_is_zero(listrow_amount, precision_digits=currency_digits):
+                        continue
                     if listrow_amount > 0:
                         listrow[11] = str(listrow_amount).replace('.', ',')
                         listrow[12] = '0,00'
@@ -256,11 +260,11 @@ def generate_fec(self):
 
         sql_query += '''
         GROUP BY aml.account_id, aat.type, rp.ref, rp.id
-        HAVING sum(aml.balance) != 0
+        HAVING round(sum(aml.balance), %s) != 0
         AND aat.type in ('receivable', 'payable')
         '''
         self._cr.execute(
-            sql_query, (formatted_date_year, formatted_date_from, formatted_date_from, formatted_date_from, self.date_from, company.id))
+            sql_query, (formatted_date_year, formatted_date_from, formatted_date_from, formatted_date_from, self.date_from, company.id, currency_digits))
 
         for row in self._cr.fetchall():
             listrow = list(row)