[ADD] contract_price_revision: new module to update contract prices easily

contract_price_revision/wizards/__init__.py

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+from . import create_revision_line

contract_price_revision/wizards/create_revision_line.py

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+# Copyright 2019 Tecnativa <vicent.cubells@tecnativa.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from dateutil.relativedelta import relativedelta
+
+from odoo import api, fields, models
+import odoo.addons.decimal_precision as dp
+
+
+class CreateRevisionLineWizard(models.TransientModel):
+    _name = 'create.revision.line.wizard'
+
+    date_start = fields.Date(
+        required=True,
+    )
+    date_end = fields.Date()
+    variation_percent = fields.Float(
+        digits=dp.get_precision('Product Price'),
+        required=True,
+        string='Variation %',
+    )
+
+    @api.multi
+    def action_apply(self):
+        contract_obj = self.env['account.analytic.account']
+        line_obj = self.env['account.analytic.invoice.line']
+        active_ids = self.env.context['active_ids']
+        line_news = line_obj
+        for item in contract_obj.browse(active_ids).mapped(
+                'recurring_invoice_line_ids').filtered(
+                lambda x: not x.automatic_price):
+            line_news |= item.copy({
+                'date_start': self.date_start,
+                'date_end': self.date_end,
+                'previous_revision_id': item.id,
+                'price_unit': item.price_unit * (
+                    1.0 + self.variation_percent / 100.0),
+            })
+            item.date_end = (fields.Date.from_string(self.date_start) -
+                             relativedelta(days=1))
+        action = self.env.ref(
+            'contract.action_account_analytic_sale_overdue_all').read()[0]
+        if len(active_ids) > 1:  # pragma: no cover
+            action['domain'] = [('id', 'in', active_ids)]
+        elif active_ids:
+            action['views'] = [(
+                self.env.ref('contract.account_analytic_account_sale_form').id,
+                'form')]
+            action['res_id'] = active_ids[0]
+        return action

contract_price_revision/wizards/create_revision_line_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <record id="contract_line_duplicate_wizard_view" model="ir.ui.view">
+        <field name="name">Create Revision Line</field>
+        <field name="model">create.revision.line.wizard</field>
+        <field name="arch" type="xml">
+            <form>
+                <div>
+                    Set new start date and variation percent to duplicate.
+                    This process set start date previous day as end date of
+                    origin record.
+                    <br/>
+                    <br/>
+                </div>
+                <group>
+                    <group>
+                        <field name="date_start"/>
+                        <field name="date_end"/>
+                        <field name="variation_percent"/>
+                    </group>
+                </group>
+                <footer>
+                    <button string="Apply" name="action_apply"
+                            type="object" class="oe_highlight"/>
+                    or
+                    <button string="Cancel" class="oe_link" special="cancel"/>
+                </footer>
+            </form>
+        </field>
+    </record>
+
+    <act_window id="contract_line_duplicate_wizard_action"
+        name="Create revision of contract lines"
+        src_model="account.analytic.account"
+        res_model="create.revision.line.wizard"
+        view_type="form" view_mode="form"
+        key2="client_action_multi" target="new"
+    />
+
+</odoo>