[12.0][IMP] - Add strat/stop wizard to contract line

[12.0][IMP] - Add pause button to contract line

[IMP] - Add state filed in contract line form

[FIX] - stop don't change date_end for finished contract line

[IMP] - Change contract line buttons visibility

Add renewal process with termination notice

[FIX] - don't consider stop_date If it is after the contract line end_date

[IMP] - consider more cases in stop_plan_successor

[IMP] - cancel upcoming line on stop

[IMP] - Chnage next invoice date on un-cancel

[IMP] - Post message in contract on contract line actions

[IMP] - check contract line overlap

contract/wizards/__init__.py

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+from . import contract_line_wizard

contract/wizards/contract_line_wizard.py

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+# Copyright 2018 ACSONE SA/NV
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import api, fields, models
+
+
+class AccountAnalyticInvoiceLineWizard(models.TransientModel):
+
+    _name = 'account.analytic.invoice.line.wizard'
+    _description = 'Contract Line Wizard'
+
+    date_start = fields.Date(string='Date Start')
+    date_end = fields.Date(string='Date End')
+    recurring_next_date = fields.Date(string='Next Invoice Date')
+    is_auto_renew = fields.Boolean(string="Auto Renew", default=False)
+    contract_line_id = fields.Many2one(
+        comodel_name="account.analytic.invoice.line",
+        string="Contract Line",
+        required=True,
+    )
+
+    @api.multi
+    def stop(self):
+        for wizard in self:
+            wizard.contract_line_id.stop(wizard.date_end)
+        return True
+
+    @api.multi
+    def plan_successor(self):
+        for wizard in self:
+            wizard.contract_line_id.plan_successor(
+                wizard.date_start, wizard.date_end, wizard.is_auto_renew
+            )
+        return True
+
+    @api.multi
+    def stop_plan_successor(self):
+        for wizard in self:
+            wizard.contract_line_id.stop_plan_successor(
+                wizard.date_start, wizard.date_end, wizard.is_auto_renew
+            )
+        return True
+
+    @api.multi
+    def uncancel(self):
+        for wizard in self:
+            wizard.contract_line_id.uncancel(wizard.recurring_next_date)
+        return True

contract/wizards/contract_line_wizard.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright 2018 ACSONE SA/NV
+     License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). -->
+
+<odoo>
+
+    <record model="ir.ui.view" id="contract_line_wizard_stop_form_view">
+        <field name="name">contract.line.stop.wizard.form (in contract)</field>
+        <field name="model">account.analytic.invoice.line.wizard</field>
+        <field name="arch" type="xml">
+            <form>
+                <group>
+                    <field name="contract_line_id" invisible="True"/>
+                    <field string="Stop Date" name="date_end" required="True"/>
+                </group>
+                <footer>
+                    <button name="stop"
+                            string="Validate"
+                            class="btn-primary"
+                            type="object"/>
+                    <button string="Cancel"
+                            class="btn-default"
+                            special="cancel"/>
+                </footer>
+            </form>
+        </field>
+    </record>
+
+    <record model="ir.ui.view" id="contract_line_wizard_plan_successor_form_view">
+        <field name="name">contract.line.plan_successor.wizard.form (in contract)</field>
+        <field name="model">account.analytic.invoice.line.wizard</field>
+        <field name="arch" type="xml">
+            <form>
+                <group>
+                    <field name="contract_line_id" invisible="True"/>
+                    <field name="date_start" required="True"/>
+                    <field name="date_end" attrs="{'required': [('is_auto_renew', '=', True)]}"/>
+                    <field name="is_auto_renew"/>
+                </group>
+                <footer>
+                    <button name="plan_successor"
+                            string="Validate"
+                            class="btn-primary"
+                            type="object"/>
+                    <button string="Cancel"
+                            class="btn-default"
+                            special="cancel"/>
+                </footer>
+            </form>
+        </field>
+    </record>
+
+    <record model="ir.ui.view" id="contract_line_wizard_stop_plan_successor_form_view">
+        <field name="name">contract.line.stop_plan_successor.wizard.form (in contract)</field>
+        <field name="model">account.analytic.invoice.line.wizard</field>
+        <field name="arch" type="xml">
+            <form>
+                <group>
+                    <field name="contract_line_id" invisible="True"/>
+                    <field string="Suspension Start Date" name="date_start" required="True"/>
+                    <field string="Suspension End Date" name="date_end" required="True"/>
+                    <field name="is_auto_renew" invisible="1"/>
+                </group>
+                <footer>
+                    <button name="stop_plan_successor"
+                            string="Validate"
+                            class="btn-primary"
+                            type="object"/>
+                    <button string="Cancel"
+                            class="btn-default"
+                            special="cancel"/>
+                </footer>
+            </form>
+        </field>
+    </record>
+
+    <record model="ir.ui.view" id="contract_line_wizard_uncancel_form_view">
+        <field name="name">contract.line.stop_plan_successor.wizard.form (in contract)</field>
+        <field name="model">account.analytic.invoice.line.wizard</field>
+        <field name="arch" type="xml">
+            <form>
+                <group>
+                    <field name="contract_line_id" invisible="True"/>
+                    <field name="recurring_next_date" required="True"/>
+                </group>
+                <footer>
+                    <button name="uncancel"
+                            string="Validate"
+                            class="btn-primary"
+                            type="object"/>
+                    <button string="Cancel"
+                            class="btn-default"
+                            special="cancel"/>
+                </footer>
+            </form>
+        </field>
+    </record>
+
+</odoo>