[IMP] project: add a properties field on task

Purpose
=======
To be able to customize the working flow on the task, based on their
project, we add a properties field on tasks, whose definition is stored
on their project.

Task-2965523

X-original-commit: 2f244769cbb1512875ae197aa8adc3efd34fd54b
Part-of: odoo/odoo#101487

addons/project/models/project.py

@@ -361,6 +361,7 @@ class Project(models.Model):
     allow_task_dependencies = fields.Boolean('Task Dependencies', default=lambda self: self.env.user.has_group('project.group_project_task_dependencies'))
     allow_milestones = fields.Boolean('Milestones', default=lambda self: self.env.user.has_group('project.group_project_milestone'))
     tag_ids = fields.Many2many('project.tags', relation='project_project_project_tags_rel', string='Tags')
+    task_properties_definition = fields.PropertiesDefinition('Task Properties')
 
     # Project Sharing fields
     collaborator_ids = fields.One2many('project.collaborator', 'project_id', string='Collaborators', copy=False)
@@ -1122,8 +1123,9 @@ class Task(models.Model):
         help="Date on which the stage of your task has last been modified.\n"
             "Based on this information you can identify tasks that are stalling and get statistics on the time it usually takes to move tasks from one stage to another.")
     project_id = fields.Many2one('project.project', string='Project', recursive=True,
-        compute='_compute_project_id', store=True, readonly=False,
+        compute='_compute_project_id', store=True, readonly=False, precompute=True,
         index=True, tracking=True, check_company=True, change_default=True)
+    task_properties = fields.Properties('Properties', definition='project_id.task_properties_definition', copy=True)
     # Defines in which project the task will be displayed / taken into account in statistics.
     # Example: 1 task A with 1 subtask B in project P
     # A -> project_id=P, display_project_id=P

addons/project/views/project_views.xml

@@ -1178,6 +1178,8 @@
                             <field name="legend_done" invisible="1"/>
                         </group>
                     </group>
+                    <field attrs="{'invisible': [('project_id', '=', False)]}"
+                        name="task_properties" nolabel="1" columns="2"/>
                     <notebook>
                         <page name="description_page" string="Description">
                             <field name="description" type="html" options="{'collaborative': true, 'resizable': false}"/>