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modules/project_plan/allocation.py

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+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+from trytond.model import ModelSQL, ModelView, fields
+
+
+class Allocation(ModelSQL, ModelView):
+    __name__ = 'project.allocation'
+    employee = fields.Many2One(
+        'company.employee', "Employee", required=True, ondelete='CASCADE')
+    work = fields.Many2One(
+        'project.work', "Work", required=True, ondelete='CASCADE')
+    percentage = fields.Float(
+        "Percentage", digits=(None, 2), required=True,
+        domain=[('percentage', '>', 0.0)])
+
+    @staticmethod
+    def default_percentage():
+        return 100
+
+    def get_rec_name(self, name):
+        return self.employee.rec_name
+
+    @classmethod
+    def search_rec_name(cls, name, clause):
+        return [('employee.rec_name',) + tuple(clause[1:])]
+
+    @classmethod
+    def on_modification(cls, mode, allocations, field_names=None):
+        super().on_modification(mode, allocations, field_names=field_names)
+        if mode in {'create', 'write'}:
+            for allocation in allocations:
+                allocation.work.reset_leveling()
+                allocation.work.compute_dates()
+
+    @classmethod
+    def on_delete(cls, allocations):
+        callback = super().on_delete(allocations)
+        works = [a.work for a in allocations]
+
+        def replan():
+            for work in works:
+                work.reset_leveling()
+                work.compute_dates()
+        callback.append(replan)
+        return callback