[ADD] project_workload_milestone

project_workload_milestone/__init__.py

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+from . import models

project_workload_milestone/__manifest__.py

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+# Copyright 2024 Akretion (https://www.akretion.com).
+# @author Florian Mounier <[email protected]>
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+{
+    "name": "Project Workload Milestone",
+    "summary": "Add Milestone Support to Project Workload",
+    "version": "14.0.1.0.0",
+    "development_status": "Alpha",
+    "category": "Uncategorized",
+    "website": "https://github.com/akretion/ak-odoo-incubator",
+    "author": " Akretion",
+    "license": "AGPL-3",
+    "depends": [
+        "project_workload",
+        "project_milestone",
+    ],
+    "data": [
+        "views/project_milestone.xml",
+    ],
+    "auto_install": True,
+}

project_workload_milestone/models/__init__.py

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+from . import project_milestone
+from . import project_task

project_workload_milestone/models/project_milestone.py

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+# Copyright 2024 Akretion (http://www.akretion.com).
+# @author Florian Mounier <[email protected]>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+from datetime import timedelta
+
+from odoo import _, api, fields, models
+from odoo.exceptions import ValidationError
+
+
+class ProjectMilestone(models.Model):
+    _inherit = "project.milestone"
+
+    start_date = fields.Date(
+        string="Start Date",
+        help="The date when the Milestone should start.",
+        compute="_compute_milestone_start_date",
+        store=True,
+        readonly=False,
+    )
+
+    @api.constrains("start_date", "target_date")
+    def _check_start_date(self):
+        for milestone in self:
+            if milestone.target_date < milestone.start_date:
+                raise ValidationError(
+                    _("The end date cannot be earlier than the start date.")
+                )
+
+    @api.depends("target_date", "project_id")
+    def _compute_milestone_start_date(self):
+        for record in self:
+            if record.start_date:
+                continue
+            if not record.target_date:
+                record.start_date = False
+                continue
+
+            # Use a simple algorithm to find the start date
+            # Find previous milestone
+            previous_milestones = self.search(
+                [
+                    ("project_id", "=", record.project_id.id),
+                    ("target_date", "<", record.target_date),
+                ],
+                order="target_date desc",
+                limit=1,
+            )
+            # The start date will be the end date of the previous milestone
+            record.start_date = previous_milestones.target_date + timedelta(days=1)

project_workload_milestone/models/project_task.py

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+# Copyright 2024 Akretion (http://www.akretion.com).
+# @author Florian Mounier <[email protected]>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import api, models
+
+
+class ProjectTask(models.Model):
+    _inherit = "project.task"
+
+    def _prepare_task_dates_vals_from_milestone(self, vals):
+        # If we create a task with a milestone or affect it after,
+        # we set the task dates to the milestone dates
+
+        if "milestone_id" in vals:
+            milestone = self.env["project.milestone"].browse(vals["milestone_id"])
+            if milestone:
+                vals["date_end"] = milestone.target_date
+                vals["date_start"] = milestone.start_date
+        return vals
+
+    @api.model
+    def create(self, vals):
+        return super().create(self._prepare_task_dates_vals_from_milestone(vals))
+
+    def write(self, vals):
+        return super().write(self._prepare_task_dates_vals_from_milestone(vals))

project_workload_milestone/views/project_milestone.xml

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+<?xml version="1.0" encoding="utf-8" ?>
+<!-- Copyright 2024 Akretion (http://www.akretion.com).
+ @author Florian Mounier <[email protected]>
+ License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). -->
+<odoo>
+
+    <record id="project_milestone_view_form" model="ir.ui.view">
+        <field name="model">project.milestone</field>
+        <field name="inherit_id" ref="project_milestone.project_milestone_view_form" />
+        <field name="arch" type="xml">
+            <field name="project_id" position="replace" />
+            <field name="target_date" position="before">
+                <field name="project_id" />
+            </field>
+            <field name="target_date" position="after">
+                <field name="start_date" />
+            </field>
+        </field>
+    </record>
+
+</odoo>

setup/project_workload_milestone/odoo/addons/project_workload_milestone

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+../../../../project_workload_milestone

setup/project_workload_milestone/setup.py

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+import setuptools
+
+setuptools.setup(
+    setup_requires=['setuptools-odoo'],
+    odoo_addon=True,
+)