[REF] hr_timesheet_begin_end: Make more extensible

The separation of checks into separate methods is needed because I want
to disable one check in another module. This makes the module more
extensible.

The unit_amount_from_start_stop method also makes the module more
extensible.

I have also moved the onchange to the top of the file, according to the
OCA contribution guidelines.

Signed-off-by: Carmen Bianca BAKKER <[email protected]>

Author: carmenbianca

hr_timesheet_begin_end/models/account_analytic_line.py

@@ -1,5 +1,6 @@
 # Copyright 2015 Camptocamp SA - Guewen Baconnier
 # Copyright 2017 Tecnativa, S.L. - Luis M. Ontalba
+# Copyright 2024 Coop IT Easy SC - Carmen Bianca BAKKER
 # License AGPL-3 - See http://www.gnu.org/licenses/agpl-3.0.html
 
 from datetime import timedelta
@@ -15,16 +16,14 @@ class AccountAnalyticLine(models.Model):
     time_start = fields.Float(string="Begin Hour")
     time_stop = fields.Float(string="End Hour")
 
-    @api.constrains("time_start", "time_stop", "unit_amount")
-    def _check_time_start_stop(self):
-        for line in self:
-            value_to_html = self.env["ir.qweb.field.float_time"].value_to_html
-            start = timedelta(hours=line.time_start)
-            stop = timedelta(hours=line.time_stop)
-            if stop < start:
-                value_to_html(line.time_start, None)
-                value_to_html(line.time_stop, None)
+    @api.onchange("time_start", "time_stop")
+    def onchange_hours_start_stop(self):
+        self.unit_amount = self.unit_amount_from_start_stop()
 
+    def _validate_start_before_stop(self):
+        value_to_html = self.env["ir.qweb.field.float_time"].value_to_html
+        for line in self:
+            if line.time_stop < line.time_start:
                 raise exceptions.ValidationError(
                     _(
                         "The beginning hour (%(html_start)s) must "
@@ -35,7 +34,11 @@ def _check_time_start_stop(self):
                         "html_stop": value_to_html(line.time_stop, None),
                     }
                 )
-            hours = (stop - start).seconds / 3600
+
+    def _validate_unit_amount_equal_to_time_diff(self):
+        value_to_html = self.env["ir.qweb.field.float_time"].value_to_html
+        for line in self:
+            hours = line.unit_amount_from_start_stop()
             rounding = self.env.ref("uom.product_uom_hour").rounding
             if hours and float_compare(
                 hours, line.unit_amount, precision_rounding=rounding
@@ -50,16 +53,21 @@ def _check_time_start_stop(self):
                         "html_hours": value_to_html(hours, None),
                     }
                 )
-            # check if lines overlap
-            others = self.search(
-                [
-                    ("id", "!=", line.id),
-                    ("employee_id", "=", line.employee_id.id),
-                    ("date", "=", line.date),
-                    ("time_start", "<", line.time_stop),
-                    ("time_stop", ">", line.time_start),
-                ]
-            )
+
+    def _overlap_domain(self):
+        self.ensure_one()
+        return [
+            ("id", "!=", self.id),
+            ("employee_id", "=", self.employee_id.id),
+            ("date", "=", self.date),
+            ("time_start", "<", self.time_stop),
+            ("time_stop", ">", self.time_start),
+        ]
+
+    def _validate_no_overlap(self):
+        value_to_html = self.env["ir.qweb.field.float_time"].value_to_html
+        for line in self:
+            others = self.search(line._overlap_domain())
             if others:
                 message = _("Lines can't overlap:\n")
                 message += "\n".join(
@@ -74,13 +82,24 @@ def _check_time_start_stop(self):
                 )
                 raise exceptions.ValidationError(message)
 
-    @api.onchange("time_start", "time_stop")
-    def onchange_hours_start_stop(self):
-        start = timedelta(hours=self.time_start)
-        stop = timedelta(hours=self.time_stop)
+    @api.constrains("time_start", "time_stop", "unit_amount")
+    def _check_time_start_stop(self):
+        self._validate_start_before_stop()
+        self._validate_unit_amount_equal_to_time_diff()
+        self._validate_no_overlap()
+
+    @api.model
+    def _hours_from_start_stop(self, time_start, time_stop):
+        start = timedelta(hours=time_start)
+        stop = timedelta(hours=time_stop)
         if stop < start:
-            return
-        self.unit_amount = (stop - start).seconds / 3600
+            # Invalid case, but return something sensible.
+            return 0
+        return (stop - start).seconds / 3600
+
+    def unit_amount_from_start_stop(self):
+        self.ensure_one()
+        return self._hours_from_start_stop(self.time_start, self.time_stop)
 
     def merge_timesheets(self):  # pragma: no cover
         """This method is needed in case hr_timesheet_sheet is installed"""