[FIX] Add a module to restrict salesperson to allow more discount tha…

…n allowed

fiber_sale_discount/__init__.py

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+# -*- coding: utf-8 -*-
+
+from . import models
+

fiber_sale_discount/__manifest__.py

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+# -*- coding: utf-8 -*-
+{
+    'name': "Quotations/Sales Orders Discount Approval",
+    'summary': """
+        Sales Discount Control
+        """,
+    'description': """
+        Sales Discount Control
+        """,
+    'author': "Odoo S.A.",
+    'website': "http://www.odoo.com",
+    'category': 'Customization',
+    'version': '0.1',
+    'depends': ['sale'],
+    'data': [
+        'views/sale_views.xml',
+        'data/mail_data.xml',
+    ],
+    'installable': True,
+    'application': False,
+    'auto_install': False
+}

fiber_sale_discount/data/mail_data.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <data noupdate="1">
+
+        <record id="email_template_sale_discount_approval" model="mail.template">
+            <field name="name">Sales Order: Discount Approval</field>
+            <field name="model_id" ref="sale.model_sale_order"/>
+            <field name="subject">Discount approval for Sale Order (Ref ${object.name or 'n/a' })</field>
+            <field name="email_from">${(object.user_id.email_formatted or user.email_formatted) | safe}</field>
+            <field name="partner_to">${object.user_id.id}</field>
+            <field name="body_html" type="html">
+<div style="margin:0px;padding: 0px;">
+    <p style="padding:0px;font-size: 13px;">
+        Hello,
+        <br/><br/>
+        Salesperson has given more discount to the customer on the products than the discount he/she can allow.
+        <br/><br/>
+        The discount he/she can allow is <strong>${object.user_id.discount_limit}</strong>.
+        <br/><br/>
+    </p>
+</div>
+            </field>
+            <field name="lang">${object.partner_id.lang}</field>
+            <field name="auto_delete" eval="True"/>
+        </record>
+
+        <record id="email_template_sale_discount_approve" model="mail.template">
+            <field name="name">Sales Order: Discount Approved</field>
+            <field name="model_id" ref="sale.model_sale_order"/>
+            <field name="subject">Discount approved for Sale Order (Ref ${object.name or 'n/a' })</field>
+            <field name="email_from">${(object.user_id.email_formatted or user.email_formatted) | safe}</field>
+            <field name="partner_to">${object.user_id.id}</field>
+            <field name="body_html" type="html">
+<div style="margin:0px;padding: 0px;">
+    <p style="padding:0px;font-size: 13px;">
+        Hello,
+        <br/><br/>
+        Responsible person has approved the higher discount to the customer on the products.
+        <br/><br/>
+        You can confirm the order.
+        <br/><br/>
+    </p>
+</div>
+            </field>
+            <field name="lang">${object.partner_id.lang}</field>
+            <field name="auto_delete" eval="True"/>
+        </record>
+
+        <record id="email_template_sale_discount_reject" model="mail.template">
+            <field name="name">Sales Order: Discount Rejected</field>
+            <field name="model_id" ref="sale.model_sale_order"/>
+            <field name="subject">Discount rejected for Sale Order (Ref ${object.name or 'n/a' })</field>
+            <field name="email_from">${(object.user_id.email_formatted or user.email_formatted) | safe}</field>
+            <field name="partner_to">${object.user_id.id}</field>
+            <field name="body_html" type="html">
+<div style="margin:0px;padding: 0px;">
+    <p style="padding:0px;font-size: 13px;">
+        Hello,
+        <br/><br/>
+        Responsible person has rejected the higher discount to the customer on the products.
+        <br/><br/>
+        You can either cancel the order or modify discount on the order.
+        <br/><br/>
+    </p>
+</div>
+            </field>
+            <field name="lang">${object.partner_id.lang}</field>
+            <field name="auto_delete" eval="True"/>
+        </record>
+
+    </data>
+</odoo>

fiber_sale_discount/models/__init__.py

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+# -*- coding: utf-8 -*-
+
+from . import sale_discount
+

fiber_sale_discount/models/sale_discount.py

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+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo import api, fields, models, _
+from odoo.exceptions import ValidationError
+
+
+class Users(models.Model):
+    _inherit = 'res.users'
+
+    discount_limit = fields.Float('Discount limit')
+    approver_ids = fields.Many2many('res.users', 'users_approver_rel', 'user_id1', 'user_id2', string='Approver')
+
+class SaleOrder(models.Model):
+    _inherit = 'sale.order'
+
+    confirm_so = fields.Boolean('Allow to confirm sale order', default=True, compute='_compute_confirm_so', store=True, readonly=True)
+    state = fields.Selection(selection_add=[('wait', 'Waiting for Approval'), ('approved', 'SO is Approved'), ('rejected', 'SO is Rejected')])
+
+    @api.depends('order_line.discount')
+    def _compute_confirm_so(self):
+        for order in self:
+            order.confirm_so = False if order.order_line.filtered(lambda o: o.discount > order.user_id.discount_limit) else True
+
+    def action_quotation_send(self):
+        if self.state == 'approved' or self.confirm_so == True:
+            return super(SaleOrder, self).action_quotation_send()
+        else:
+            if self.confirm_so == False:
+                if self.state in ('draft', 'sent'):
+                    self.write({'state': 'wait'})
+                    return
+
+    def action_confirm(self):
+        if self.state == 'approved' or self.confirm_so == True:
+            return super(SaleOrder, self).action_confirm()
+        else:
+            if self.confirm_so == False:
+                if self.state in ('draft', 'sent'):
+                    self.write({'state': 'wait'})
+                    return
+
+    def action_request_discout_email_send(self):
+        if self.confirm_so:
+            self.action_confirm()
+        else:
+            template = self.env.ref('fiber_sale_discount.email_template_sale_discount_approval', raise_if_not_found=False)
+            res = self.env['res.users'].search_read([('id', 'in', self.user_id.approver_ids.ids)], ['email'])
+            emails = set(r['email'] for r in res if r.get('email'))
+            email_values = {
+                'email_to': ','.join(emails)
+            }
+            if template and self.env.user.email and self.id:
+                template.with_context(is_reminder=True).send_mail(
+                    self.id,
+                    force_send=True,
+                    raise_exception=False,
+                    email_values=email_values,
+                    notif_layout="mail.mail_notification_paynow")
+                return {'toast_message': _("A sample email has been sent to %s.") % self.env.user.email}
+
+    def action_authorize_discout_approve_email_send(self):
+        if (self.env.user in self.user_id.approver_ids):
+            template = self.env.ref('fiber_sale_discount.email_template_sale_discount_approve', raise_if_not_found=False)
+
+            if template and self.env.user.email and self.id:
+                template.with_context(is_reminder=True).send_mail(
+                    self.id,
+                    force_send=True,
+                    raise_exception=False,
+                    email_values={'email_to': self.env.user.email, 'recipient_ids': []},
+                    notif_layout="mail.mail_notification_paynow")
+                self.write({'confirm_so': True, 'state': 'approved'})
+                return {'toast_message': _("A sample email has been sent to %s.") % self.env.user.email}
+        else:
+            raise ValidationError(_("You can't approve/reject the discount. Only approver has this rights."))
+
+    def action_authorize_discout_reject_email_send(self):
+        if (self.env.user in self.user_id.approver_ids):
+            template = self.env.ref('fiber_sale_discount.email_template_sale_discount_reject', raise_if_not_found=False)
+
+            if template and self.env.user.email and self.id:
+                template.with_context(is_reminder=True).send_mail(
+                    self.id,
+                    force_send=True,
+                    raise_exception=False,
+                    email_values={'email_to': self.env.user.email, 'recipient_ids': []},
+                    notif_layout="mail.mail_notification_paynow")
+                self.write({'state': 'rejected'})
+                return {'toast_message': _("A sample email has been sent to %s.") % self.env.user.email}
+        else:
+            raise ValidationError(_("You can't approve/reject the discount. Only approver has this rights."))
+
+
+class SaleOrderLine(models.Model):
+    _inherit = 'sale.order.line'
+
+    @api.onchange('discount')
+    def _onchange_discount(self):
+        for line in self:
+            if line.discount > line.order_id.user_id.discount_limit:
+                warning = {
+                    'title': 'Discount warning',
+                    'message': 'The discount is higher than the allowed discount.',
+                }
+                return {'warning': warning}

fiber_sale_discount/views/sale_views.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="fiber_view_res_users_form" model="ir.ui.view">
+        <field name="name">fiber.res.users.form</field>
+        <field name="model">res.users</field>
+        <field name="inherit_id" ref="base.view_users_form"/>
+        <field name="arch" type="xml">
+            <xpath expr="//form[1]/sheet[1]/div[not(@name)][2]/group[1]/field[@name='partner_id']" position="after">
+                <field name="discount_limit"/>
+                <field name="approver_ids" string="Approvers" widget="many2many_tags" domain="[('share','=',False)]"/>
+            </xpath>
+        </field>
+    </record>
+
+    <record id="fiber_view_order_form" model="ir.ui.view">
+        <field name="name">fiber.sale.order.form</field>
+        <field name="model">sale.order</field>
+        <field name="inherit_id" ref="sale.view_order_form"/>
+        <field name="arch" type="xml">
+            <xpath expr="//button[@name='action_confirm'][1]" position="replace">
+                <button name="action_confirm" id="action_confirm"
+                    string="Confirm" class="btn-primary" type="object"
+                    attrs="{'invisible': [('state', 'not in', ['sent', 'approved'])]}"/>
+            </xpath>
+            <xpath expr="//button[@name='action_quotation_send'][1]" position="replace">
+                <button name="action_quotation_send" string="Send by Email" type="object" states="draft,approved" class="btn-primary"/>
+            </xpath>
+
+            <xpath expr="//field[@name='sale_order_template_id']" position="after">
+                <field name="confirm_so" invisible="1" force_save="1"/>
+            </xpath>
+            <xpath expr="//button[@name='action_quotation_send']" position="after">
+                <button name="action_request_discout_email_send"
+                    string="Request Authorization"
+                    type="object"
+                    class="btn-primary"
+                    attrs="{'invisible': [('state', 'not in', ('wait', 'rejected'))]}"/>
+                <button name="action_authorize_discout_approve_email_send"
+                    string="Approve Discount"
+                    type="object"
+                    class="btn-primary"
+                    attrs="{'invisible': [('state', '!=', 'wait')]}"/>
+                <button name="action_authorize_discout_reject_email_send"
+                    string="Reject Discount"
+                    type="object"
+                    class="btn-primary"
+                    attrs="{'invisible': [('state', '!=', 'wait')]}"
+                    />
+            </xpath>
+            <xpath expr="//button[@name='action_cancel']" position="replace">
+                <button name="action_cancel" type="object" string="Cancel" attrs="{'invisible': ['|', ('state', 'not in', ['draft', 'wait', 'approved', 'rejected','sent','sale']), ('id', '=', False)]}"/>
+            </xpath>
+            <xpath expr="//button[@name='preview_sale_order']" position="attributes">
+                <attribute name="attrs">{'invisible': [('state', 'in', ['draft', 'wait', 'rejected', 'cancel'])]}</attribute>
+            </xpath>
+        </field>
+    </record>
+
+</odoo>