Withdraw to deduct

* refactors all files and variable names
* WIP: Models and attributes

compensation/models.py

@@ -201,7 +201,7 @@ class Compensation(AbstractCompensation):
 class EcoAccount(AbstractCompensation):
     """
     An eco account is a kind of 'prepaid' compensation. It can be compared to an account that already has been filled
-    with some kind of currency. From this account one is able to 'withdraw' currency for current projects.
+    with some kind of currency. From this account one is able to deduct currency for current projects.
     """
     # Users having access on this object
     # Not needed in regular Compensation since their access is defined by the linked intervention's access
@@ -232,8 +232,8 @@ class EcoAccount(AbstractCompensation):
             self.identifier = new_id
         super().save(*args, **kwargs)
 
-    def get_surface_withdraws(self) -> float:
-        """ Calculates the compensation's/account's surface
+    def get_deductions_surface(self) -> float:
+        """ Calculates the account's deductions sum surface
 
         Returns:
             sum_surface (float)
@@ -250,12 +250,12 @@ class EcoAccount(AbstractCompensation):
 
         """
         ret_val = 0
-        withdraws = self.withdraws.filter(
+        deductions = self.withdraws.filter(
             intervention__deleted=None,
         )
-        withdraw_surfaces = withdraws.aggregate(Sum("surface"))["surface__sum"] or 0
-        after_states_surfaces = self.after_states.all().aggregate(Sum("surface"))["surface__sum"] or withdraw_surfaces ## no division by zero
-        ret_val = after_states_surfaces - withdraw_surfaces
+        deductions_surfaces = deductions.aggregate(Sum("surface"))["surface__sum"] or 0
+        after_states_surfaces = self.after_states.all().aggregate(Sum("surface"))["surface__sum"] or deductions_surfaces ## no division by zero
+        ret_val = after_states_surfaces - deductions_surfaces
 
         if as_percentage:
             if after_states_surfaces > 0:
@@ -301,20 +301,20 @@ class EcoAccount(AbstractCompensation):
 
 class EcoAccountWithdraw(BaseResource):
     """
-    A withdraw object for eco accounts
+    A deduction object for eco accounts
     """
     account = models.ForeignKey(
         EcoAccount,
         on_delete=models.SET_NULL,
         null=True,
         blank=True,
-        help_text="Withdrawn from",
+        help_text="Deducted from",
         related_name="withdraws",
     )
     surface = models.FloatField(
         null=True,
         blank=True,
-        help_text="Amount withdrawn (m²)",
+        help_text="Amount deducted (m²)",
         validators=[
             MinValueValidator(limit_value=0.00),
         ]
@@ -324,7 +324,7 @@ class EcoAccountWithdraw(BaseResource):
         on_delete=models.CASCADE,
         null=True,
         blank=True,
-        help_text="Withdrawn for",
+        help_text="Deducted for",
         related_name="withdraws",
     )