[FIX] account: warning when sending invoice by email

Before this commit, when sending multiples invoices by email in batch,
if one of these invoices was for a customer without an email address,
these wasn't sent and the user didn't have any feedback about this.

Now, before the user send the emails a warning is shown with the list of
invoices that can't be sent by email.

opw-2002350

closes odoo/odoo#33753

Signed-off-by: Jorge Pinna Puissant (jpp) <jpp@odoo.com>

addons/account/i18n/account.pot

@@ -9537,6 +9537,12 @@ msgstr ""
 msgid "The fiscal position determines the taxes/accounts used for this contact."
 msgstr ""
 
+#. module: account
+#: code:addons/account/wizard/account_invoice_send.py:59
+#, python-format
+msgid "The following invoice(s) will not be sent by email, because the customers don't have email address."
+msgstr ""
+
 #. module: account
 #: code:addons/account/models/account.py:564
 #, python-format
@@ -11108,6 +11114,11 @@ msgstr ""
 msgid "have been reconciled automatically."
 msgstr ""
 
+#. module: account
+#: model:ir.model.fields,field_description:account.field_account_invoice_send__invoice_without_email
+msgid "number of invoice(s) that will not be sent"
+msgstr ""
+
 #. module: account
 #. openerp-web
 #: code:addons/account/static/src/xml/account_reconciliation.xml:44

addons/account/wizard/account_invoice_send.py

@@ -11,6 +11,7 @@ class AccountInvoiceSend(models.TransientModel):
     _description = 'Account Invoice Send'
 
     is_email = fields.Boolean('Email', default=lambda self: self.env.user.company_id.invoice_is_email)
+    invoice_without_email = fields.Text(compute='_compute_invoice_without_email', string='invoice(s) that will not be sent')
     is_print = fields.Boolean('Print', default=lambda self: self.env.user.company_id.invoice_is_print)
     printed = fields.Boolean('Is Printed', default=False)
     invoice_ids = fields.Many2many('account.invoice', 'account_invoice_account_invoice_send_rel', string='Invoices')
@@ -45,6 +46,22 @@ class AccountInvoiceSend(models.TransientModel):
             self.composer_id.template_id = self.template_id.id
             self.composer_id.onchange_template_id_wrapper()
 
+    @api.onchange('is_email')
+    def _compute_invoice_without_email(self):
+        for wizard in self:
+            if wizard.is_email and len(wizard.invoice_ids) > 1:
+                invoices = self.env['account.invoice'].search([
+                    ('id', 'in', self.env.context.get('active_ids')),
+                    ('partner_id.email', '=', False)
+                ])
+                if invoices:
+                    wizard.invoice_without_email = "%s\n%s" % (
+                        _("The following invoice(s) will not be sent by email, because the customers don't have email address."),
+                        "\n".join([i.reference for i in invoices])
+                        )
+                else:
+                    wizard.invoice_without_email = False
+
     @api.multi
     def _send_email(self):
         if self.is_email:

addons/account/wizard/account_invoice_send_views.xml

@@ -23,6 +23,9 @@
                         <field name="is_email" />
                         <b><label for="is_email"/></b>
                     </div>
+                    <div class="text-left d-inline-block mr8" attrs="{'invisible': ['|', ('is_email','=', False), ('invoice_without_email', '=', False)]}">
+                        <field name="invoice_without_email" class="mr4"/>
+                    </div>
                     <div name="mail_form"  attrs="{'invisible': [('is_email', '=', False)]}">
                         <!-- visible wizard -->
                         <div attrs="{'invisible': [('composition_mode', '=', 'mass_mail')]}">