Withdraw to deduct

* refactors Models and attributes

compensation/models.py

@@ -238,7 +238,7 @@ class EcoAccount(AbstractCompensation):
         Returns:
             sum_surface (float)
         """
-        return self.withdraws.all().aggregate(Sum("surface"))["surface__sum"] or 0
+        return self.deductions.all().aggregate(Sum("surface"))["surface__sum"] or 0
 
     def get_available_rest(self, as_percentage: bool = False):
         """ Calculates available rest surface of the eco account
@@ -250,7 +250,7 @@ class EcoAccount(AbstractCompensation):
 
         """
         ret_val = 0
-        deductions = self.withdraws.filter(
+        deductions = self.deductions.filter(
             intervention__deleted=None,
         )
         deductions_surfaces = deductions.aggregate(Sum("surface"))["surface__sum"] or 0
@@ -299,7 +299,7 @@ class EcoAccount(AbstractCompensation):
         return ret_msgs
 
 
-class EcoAccountWithdraw(BaseResource):
+class EcoAccountDeduction(BaseResource):
     """
     A deduction object for eco accounts
     """
@@ -309,7 +309,7 @@ class EcoAccountWithdraw(BaseResource):
         null=True,
         blank=True,
         help_text="Deducted from",
-        related_name="withdraws",
+        related_name="deductions",
     )
     surface = models.FloatField(
         null=True,
@@ -325,7 +325,7 @@ class EcoAccountWithdraw(BaseResource):
         null=True,
         blank=True,
         help_text="Deducted for",
-        related_name="withdraws",
+        related_name="deductions",
     )
 
     def __str__(self):