[WIP] Invoice WorkFlow

hotel/models/__init__.py

@@ -31,3 +31,4 @@ from . import hotel_service_line
 from . import hotel_board_service
 from . import hotel_board_service_room_type_line
 from . import hotel_board_service_line
+from . import inherited_account_invoice_line

hotel/models/hotel_folio.py

@@ -11,6 +11,8 @@ from dateutil.relativedelta import relativedelta
 from odoo.exceptions import except_orm, UserError, ValidationError
 from odoo.tools import (
     misc,
+    float_is_zero,
+    float_compare,    
     DEFAULT_SERVER_DATETIME_FORMAT,
     DEFAULT_SERVER_DATE_FORMAT)
 from odoo import models, fields, api, _
@@ -44,9 +46,14 @@ class HotelFolio(models.Model):
     def _amount_all(self):
         pass
 
+    @api.model
+    def _get_default_team(self):
+        return self.env['crm.team']._get_default_team_id()
+
     #Main Fields--------------------------------------------------------
     name = fields.Char('Folio Number', readonly=True, index=True,
                        default=lambda self: _('New'))
+    client_order_ref = fields.Char(string='Customer Reference', copy=False)
     partner_id = fields.Many2one('res.partner',
                                  track_visibility='onchange')
 
@@ -87,6 +94,7 @@ class HotelFolio(models.Model):
         required=True, readonly=True, index=True,
         states={'draft': [('readonly', False)], 'sent': [('readonly', False)]},
         copy=False, default=fields.Datetime.now)
+    confirmation_date = fields.Datetime(string='Confirmation Date', readonly=True, index=True, help="Date on which the folio is confirmed.", copy=False)
     state = fields.Selection([
         ('draft', 'Quotation'),
         ('sent', 'Quotation Sent'),
@@ -111,6 +119,7 @@ class HotelFolio(models.Model):
                                   readonly=True)
     return_ids = fields.One2many('payment.return', 'folio_id',
                                  readonly=True)
+    payment_term_id = fields.Many2one('account.payment.term', string='Payment Terms', oldname='payment_term')
 
     #Amount Fields------------------------------------------------------
     pending_amount = fields.Monetary(compute='compute_amount',
@@ -150,12 +159,13 @@ class HotelFolio(models.Model):
                                       string='Invoice Status',
                                       compute='_compute_invoice_status',
                                       store=True, readonly=True, default='no')
-    #~ partner_invoice_id = fields.Many2one('res.partner',
-                                         #~ string='Invoice Address',
-                                         #~ readonly=True, required=True,
-                                         #~ states={'draft': [('readonly', False)],
-                                                 #~ 'sent': [('readonly', False)]},
-                                         #~ help="Invoice address for current sales order.")
+    partner_invoice_id = fields.Many2one('res.partner',
+                                         string='Invoice Address',
+                                         readonly=True, required=True,
+                                         states={'draft': [('readonly', False)],
+                                                 'sent': [('readonly', False)]},
+                                         help="Invoice address for current sales order.")
+    fiscal_position_id = fields.Many2one('account.fiscal.position', oldname='fiscal_position', string='Fiscal Position')
 
     #WorkFlow Mail Fields-----------------------------------------------
     has_confirmed_reservations_to_send = fields.Boolean(
@@ -179,6 +189,7 @@ class HotelFolio(models.Model):
     client_order_ref = fields.Char(string='Customer Reference', copy=False)
     note = fields.Text('Terms and conditions')
     sequence = fields.Integer(string='Sequence', default=10)
+    team_id = fields.Many2one('crm.team', 'Sales Channel', change_default=True, default=_get_default_team, oldname='section_id')
 
     @api.depends('room_lines.price_total','service_ids.price_total')
     def _amount_all(self):
@@ -356,7 +367,7 @@ class HotelFolio(models.Model):
         if any(f not in vals for f in lfields):
             partner = self.env['res.partner'].browse(vals.get('partner_id'))
             addr = partner.address_get(['delivery', 'invoice'])
-            #~ vals['partner_invoice_id'] = vals.setdefault('partner_invoice_id', addr['invoice'])
+            vals['partner_invoice_id'] = vals.setdefault('partner_invoice_id', addr['invoice'])
             vals['pricelist_id'] = vals.setdefault(
                 'pricelist_id',
                 partner.property_product_pricelist and partner.property_product_pricelist.id)
@@ -373,11 +384,11 @@ class HotelFolio(models.Model):
         - user_id
         """
         if not self.partner_id:
-            #~ self.update({
-                #~ 'partner_invoice_id': False,
-                #~ 'payment_term_id': False,
-                #~ 'fiscal_position_id': False,
-            #~ })
+            self.update({
+                'partner_invoice_id': False,
+                'payment_term_id': False,
+                'fiscal_position_id': False,
+            })
             return
         addr = self.partner_id.address_get(['invoice'])
         pricelist = self.partner_id.property_product_pricelist and \
@@ -438,6 +449,102 @@ class HotelFolio(models.Model):
     def advance_invoice(self):
         pass
 
+    @api.multi
+    def _prepare_invoice(self):
+        """
+        Prepare the dict of values to create the new invoice for a sales order. This method may be
+        overridden to implement custom invoice generation (making sure to call super() to establish
+        a clean extension chain).
+        """
+        self.ensure_one()
+        journal_id = self.env['account.invoice'].default_get(['journal_id'])['journal_id']
+        if not journal_id:
+            raise UserError(_('Please define an accounting sales journal for this company.'))
+        import wdb; wdb.set_trace()
+        invoice_vals = {
+            'name': self.client_order_ref or '',
+            'origin': self.name,
+            'type': 'out_invoice',
+            'account_id': self.partner_invoice_id.property_account_receivable_id.id,
+            'partner_id': self.partner_invoice_id.id,
+            'partner_shipping_id': self.partner_id.id,
+            'journal_id': journal_id,
+            'currency_id': self.pricelist_id.currency_id.id,
+            'comment': self.note,
+            'payment_term_id': self.payment_term_id.id,
+            'fiscal_position_id': self.fiscal_position_id.id or self.partner_invoice_id.property_account_position_id.id,
+            'company_id': self.company_id.id,
+            'user_id': self.user_id and self.user_id.id,
+            'team_id': self.team_id.id
+        }
+        return invoice_vals
+
+    @api.multi
+    def action_invoice_create(self, grouped=False):
+        """
+        Create the invoice associated to the Folio.
+        :param grouped: if True, invoices are grouped by Folio id. If False, invoices are grouped by
+                        (partner_invoice_id, currency)
+        :returns: list of created invoices
+        """
+        inv_obj = self.env['account.invoice']
+        precision = self.env['decimal.precision'].precision_get('Product Unit of Measure')
+        invoices = {}
+        references = {}
+        invoices_origin = {}
+        invoices_name = {}
+
+        for folio in self:
+            group_key = folio.id if grouped else (folio.partner_invoice_id.id, folio.currency_id.id)
+            for line in folio.room_lines.sorted(key=lambda l: l.qty_to_invoice < 0):
+                if float_is_zero(line.qty_to_invoice, precision_digits=precision):
+                    continue
+                if group_key not in invoices:
+                    inv_data = folio._prepare_invoice()
+                    invoice = inv_obj.create(inv_data)
+                    references[invoice] = folio
+                    invoices[group_key] = invoice
+                    invoices_origin[group_key] = [invoice.origin]
+                    invoices_name[group_key] = [invoice.name]
+                elif group_key in invoices:
+                    if folio.name not in invoices_origin[group_key]:
+                        invoices_origin[group_key].append(folio.name)
+                    if folio.client_order_ref and folio.client_order_ref not in invoices_name[group_key]:
+                        invoices_name[group_key].append(folio.client_order_ref)
+
+                if line.qty_to_invoice > 0:
+                    line.invoice_line_create(invoices[group_key].id, line.nights)
+
+            if references.get(invoices.get(group_key)):
+                if folio not in references[invoices[group_key]]:
+                    references[invoices[group_key]] |= folio
+
+        for group_key in invoices:
+            invoices[group_key].write({'name': ', '.join(invoices_name[group_key]),
+                                       'origin': ', '.join(invoices_origin[group_key])})
+
+        if not invoices:
+            raise UserError(_('There is no invoiceable line.'))
+
+        for invoice in invoices.values():
+            if not invoice.invoice_line_ids:
+                raise UserError(_('There is no invoiceable line.'))
+            # If invoice is negative, do a refund invoice instead
+            if invoice.amount_untaxed < 0:
+                invoice.type = 'out_refund'
+                for line in invoice.invoice_line_ids:
+                    line.quantity = -line.quantity
+            # Use additional field helper function (for account extensions)
+            for line in invoice.invoice_line_ids:
+                line._set_additional_fields(invoice)
+            # Necessary to force computation of taxes. In account_invoice, they are triggered
+            # by onchanges, which are not triggered when doing a create.
+            invoice.compute_taxes()
+            invoice.message_post_with_view('mail.message_origin_link',
+                values={'self': invoice, 'origin': references[invoice]},
+                subtype_id=self.env.ref('mail.mt_note').id)
+        return [inv.id for inv in invoices.values()]
+
     '''
     WORKFLOW STATE
     '''
@@ -483,7 +590,21 @@ class HotelFolio(models.Model):
 
     @api.multi
     def action_confirm(self):
-        _logger.info('action_confirm')
+        for folio in self.filtered(lambda folio: folio.partner_id not in folio.message_partner_ids):
+            folio.message_subscribe([folio.partner_id.id])
+        self.write({
+            'state': 'confirm',
+            'confirmation_date': fields.Datetime.now()
+        })
+        #~ if self.env.context.get('send_email'):
+            #~ self.force_quotation_send()
+
+        # create an analytic account if at least an expense product
+        #~ if any([expense_policy != 'no' for expense_policy in self.order_line.mapped('product_id.expense_policy')]):
+            #~ if not self.analytic_account_id:
+                #~ self._create_analytic_account()
+
+        return True
 
 
     """

hotel/models/hotel_reservation.py

@@ -8,6 +8,8 @@ from lxml import etree
 from odoo.exceptions import UserError, ValidationError
 from odoo.tools import (
     misc,
+    float_is_zero,
+    float_compare,
     DEFAULT_SERVER_DATE_FORMAT,
     DEFAULT_SERVER_DATETIME_FORMAT)
 from odoo import models, fields, api, _
@@ -75,6 +77,7 @@ class HotelReservation(models.Model):
             return folio.room_lines[0].departure_hour
         else:
             return default_departure_hour
+    
 
     @api.model
     def name_search(self, name='', args=None, operator='ilike', limit=100):
@@ -115,6 +118,7 @@ class HotelReservation(models.Model):
                 ).days
 
     name = fields.Text('Reservation Description', required=True)
+    sequence = fields.Integer(string='Sequence', default=10)
 
     room_id = fields.Many2one('hotel.room', string='Room')
 
@@ -230,8 +234,6 @@ class HotelReservation(models.Model):
     # order_line = fields.One2many('sale.order.line', 'order_id', string='Order Lines', states={'cancel': [('readonly', True)], 'done': [('readonly', True)]}, copy=True, auto_join=True)
     # product_id = fields.Many2one('product.product', related='order_line.product_id', string='Product')
     # product_uom = fields.Many2one('product.uom', string='Unit of Measure', required=True)
-    # product_uom_qty = fields.Float(string='Quantity', digits=dp.get_precision('Product Unit of Measure'), required=True, default=1.0)
-
     currency_id = fields.Many2one('res.currency',
                                   related='pricelist_id.currency_id',
                                   string='Currency', readonly=True, required=True)
@@ -244,12 +246,13 @@ class HotelReservation(models.Model):
     tax_id = fields.Many2many('account.tax',
                               string='Taxes',
                               domain=['|', ('active', '=', False), ('active', '=', True)])
-    # qty_to_invoice = fields.Float(
-    #     string='To Invoice', store=True, readonly=True,
-    #     digits=dp.get_precision('Product Unit of Measure'))
-    # qty_invoiced = fields.Float(
-    #     compute='_get_invoice_qty', string='Invoiced', store=True, readonly=True,
-    #     digits=dp.get_precision('Product Unit of Measure'))
+    qty_to_invoice = fields.Float(
+        compute='_get_to_invoice_qty', string='To Invoice', store=True, readonly=True,
+        digits=dp.get_precision('Product Unit of Measure'))
+    qty_invoiced = fields.Float(
+        compute='_get_invoice_qty', string='Invoiced', store=True, readonly=True,
+        digits=dp.get_precision('Product Unit of Measure'))
+    invoice_lines = fields.Many2many('account.invoice.line', 'sale_order_line_invoice_rel', 'order_line_id', 'invoice_line_id', string='Invoice Lines', copy=False)
     # qty_delivered = fields.Float(string='Delivered', copy=False, digits=dp.get_precision('Product Unit of Measure'), default=0.0)
     # qty_delivered_updateable = fields.Boolean(compute='_compute_qty_delivered_updateable', string='Can Edit Delivered', readonly=True, default=True)
     price_subtotal = fields.Monetary(string='Subtotal',
@@ -275,7 +278,7 @@ class HotelReservation(models.Model):
     # FIXME discount per night
     discount = fields.Float(string='Discount (%)', digits=dp.get_precision('Discount'), default=0.0)
 
-    # analytic_tag_ids = fields.Many2many('account.analytic.tag', string='Analytic Tags')
+    analytic_tag_ids = fields.Many2many('account.analytic.tag', string='Analytic Tags')
 
     @api.model
     def create(self, vals):
@@ -1124,3 +1127,91 @@ class HotelReservation(models.Model):
     @api.multi
     def send_cancel_mail(self):
         return self.folio_id.send_cancel_mail()
+
+    """
+    INVOICING PROCESS
+    """
+    @api.depends('qty_invoiced', 'nights', 'folio_id.state')
+    def _get_to_invoice_qty(self):
+        """
+        Compute the quantity to invoice. If the invoice policy is order, the quantity to invoice is
+        calculated from the ordered quantity. Otherwise, the quantity delivered is used.
+        """
+        for line in self:
+            if line.folio_id.state in ['confirm', 'done']:
+                if line.room_type_id.product_id.invoice_policy == 'order':
+                    line.qty_to_invoice = line.nights - line.qty_invoiced
+                else:
+                    line.qty_to_invoice = line.qty_delivered - line.qty_invoiced
+            else:
+                line.qty_to_invoice = 0
+
+    @api.depends('invoice_lines.invoice_id.state', 'invoice_lines.quantity')
+    def _get_invoice_qty(self):
+        """
+        Compute the quantity invoiced. If case of a refund, the quantity invoiced is decreased. Note
+        that this is the case only if the refund is generated from the SO and that is intentional: if
+        a refund made would automatically decrease the invoiced quantity, then there is a risk of reinvoicing
+        it automatically, which may not be wanted at all. That's why the refund has to be created from the SO
+        """
+        for line in self:
+            qty_invoiced = 0.0
+            for invoice_line in line.invoice_lines:
+                if invoice_line.invoice_id.state != 'cancel':
+                    if invoice_line.invoice_id.type == 'out_invoice':
+                        qty_invoiced += invoice_line.uom_id._compute_quantity(invoice_line.quantity, line.product_uom)
+                    elif invoice_line.invoice_id.type == 'out_refund':
+                        qty_invoiced -= invoice_line.uom_id._compute_quantity(invoice_line.quantity, line.product_uom)
+            line.qty_invoiced = qty_invoiced
+
+    @api.multi
+    def _prepare_invoice_line(self, qty):
+        """
+        Prepare the dict of values to create the new invoice line for a reservation.
+
+        :param qty: float quantity to invoice
+        """
+        self.ensure_one()
+        res = {}
+        product = self.env['product.product'].browse(self.room_type_id.product_id.id)
+        account = product.property_account_income_id or product.categ_id.property_account_income_categ_id
+        if not account:
+            raise UserError(_('Please define income account for this product: "%s" (id:%d) - or for its category: "%s".') %
+                (product.name, product.id, product.categ_id.name))
+
+        fpos = self.folio_id.fiscal_position_id or self.folio_id.partner_id.property_account_position_id
+        if fpos:
+            account = fpos.map_account(account)
+
+        res = {
+            'name': self.name,
+            'sequence': self.sequence,
+            'origin': self.folio_id.name,
+            'account_id': account.id,
+            'price_unit': self.price_unit,
+            'quantity': qty,
+            'discount': self.discount,
+            'uom_id': self.product_uom.id,
+            'product_id': product.id or False,
+            'invoice_line_tax_ids': [(6, 0, self.tax_id.ids)],
+            'account_analytic_id': self.folio_id.analytic_account_id.id,
+            'analytic_tag_ids': [(6, 0, self.analytic_tag_ids.ids)],
+        }
+        return res
+
+    @api.multi
+    def invoice_line_create(self, invoice_id, qty):
+        """ Create an invoice line. The quantity to invoice can be positive (invoice) or negative (refund).
+            :param invoice_id: integer
+            :param qty: float quantity to invoice
+            :returns recordset of account.invoice.line created
+        """
+        invoice_lines = self.env['account.invoice.line']
+        precision = self.env['decimal.precision'].precision_get('Product Unit of Measure')
+        for line in self:
+            if not float_is_zero(qty, precision_digits=precision):
+                vals = line._prepare_invoice_line(qty=qty)
+                vals.update({'invoice_id': invoice_id, 'reservation_ids': [(6, 0, [line.id])]})
+                invoice_lines |= self.env['account.invoice.line'].create(vals)
+        return invoice_lines
+

hotel/models/hotel_reservation_line.py

@@ -17,6 +17,8 @@ class HotelReservationLine(models.Model):
     discount = fields.Float(
         string='Discount (%)',
         digits=dp.get_precision('Discount'), default=0.0)
+    invoiced = fields.Boolean('Invoiced')
+    
 
     @api.constrains('date')
     def constrains_duplicated_date(self):

hotel/models/inherited_account_invoice.py

@@ -45,16 +45,17 @@ class AccountInvoice(models.Model):
     @api.multi
     def _compute_dif_customer_payment(self):
         for inv in self:
-            sales = inv.mapped('invoice_line_ids.sale_line_ids.order_id')
-            folios = self.env['hotel.folio'].search([('order_id.id','in',sales.ids)])
-            if folios:
-                inv.from_folio = True
-                inv.folio_ids = [(6, 0, folios.ids)]
-            payments_obj = self.env['account.payment']
-            payments = payments_obj.search([('folio_id','in',folios.ids)])
-            for pay in payments:
-                if pay.partner_id != inv.partner_id:
-                    inv.dif_customer_payment = True
+            return False
+            #~ sales = inv.mapped('invoice_line_ids.sale_line_ids.order_id')
+            #~ folios = self.env['hotel.folio'].search([('order_id.id','in',sales.ids)])
+            #~ if folios:
+                #~ inv.from_folio = True
+                #~ inv.folio_ids = [(6, 0, folios.ids)]
+            #~ payments_obj = self.env['account.payment']
+            #~ payments = payments_obj.search([('folio_id','in',folios.ids)])
+            #~ for pay in payments:
+                #~ if pay.partner_id != inv.partner_id:
+                    #~ inv.dif_customer_payment = True
 
     @api.multi
     def action_invoice_open(self):

hotel/models/inherited_account_invoice_line.py

@@ -0,0 +1,13 @@
+# Copyright 2017  Alexandre Díaz
+# Copyright 2017  Dario Lodeiros
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl)
+from odoo import api, fields, models, _
+
+class AccountInvoiceLine(models.Model):
+    _inherit = 'account.invoice.line'
+
+    reservation_ids = fields.Many2many(
+        'hotel.reservation',
+        'reservation_line_invoice_rel',
+        'invoice_line_id', 'reservation_id',
+        string='Reservations', readonly=True, copy=False)

hotel/views/hotel_folio_views.xml

@@ -20,9 +20,9 @@
                        attrs="{'invisible': [('has_cancelled_reservations_to_send', '=', False)]}" class="oe_highlight"/> -->
                     <!-- <button name="send_exit_mail" type="object" string="Send Exit Email"
                        attrs="{'invisible': [('has_checkout_to_send', '=', False)]}" class="oe_highlight"/> -->
-                    <!-- <button name="%(hotel.action_view_folio_advance_payment_inv)d"
+                    <button name="%(hotel.action_view_folio_advance_payment_inv)d"
                         string="Create Invoice" type="action" class="btn-primary" states="sale"
-                        attrs="{'invisible': [('invoice_status', '!=', 'to invoice')]}"/> -->
+                        attrs="{'invisible': [('state', '!=', 'confirm')]}"/>
                     <!-- <button name="action_cancel_draft" states="cancel,sale" string="Set to Draft"
                         type="object" icon="fa-undo" class="oe_highlight" /> -->
                     <button name="action_cancel" string="Cancel Folio" states="sale"
@@ -132,10 +132,12 @@
                             <field name="email" placeholder="email"/>
                             <field name="mobile" placeholder="mobile"/>
                             <field name="phone" />
+                            <field name="partner_invoice_id" />
                             <field name="cancelled_reason" attrs="{'invisible':[('state','not in',('cancel'))]}"/>
                         </group>
                         <group>
                             <field name="pricelist_id" domain="[('type','=','sale')]" />
+                            <field name="company_id" />
                             <field name="company_id" options="{'no_create': True}" groups="base.group_multi_company"/>
                             <field name="reservation_type" attrs="{'readonly':[('state','not in',('draft'))]}"/>
                             <field name="channel_type" attrs="{'required':[('reservation_type','=','normal')]}"/>

hotel/wizard/folio_make_invoice_advance.py

@@ -16,14 +16,7 @@ class FolioAdvancePaymentInv(models.TransientModel):
 
     @api.model
     def _get_advance_payment_method(self):
-        if self._count() == 1:
-            sale_obj = self.env['sale.order']
-            folio_obj = self.env['hotel.folio']
-            order = sale_obj.browse(folio_obj.mapped('order_id.id'))
-            if all([line.product_id.invoice_policy == 'order' for line in order.order_line]) \
-                    or order.invoice_count:
-                return 'all'
-        return 'delivered'
+        return 'all'
 
     @api.model
     def _default_product_id(self):
@@ -40,15 +33,22 @@ class FolioAdvancePaymentInv(models.TransientModel):
         return self._default_product_id().taxes_id
 
     advance_payment_method = fields.Selection([
-        ('delivered', 'Invoiceable lines'),
         ('all', 'Invoiceable lines (deduct down payments)'),
         ('percentage', 'Down payment (percentage)'),
         ('fixed', 'Down payment (fixed amount)')
     ], string='What do you want to invoice?', default=_get_advance_payment_method,
                                               required=True)
+    count = fields.Integer(default=_count, string='# of Orders')
+    folio_ids  = fields.Many2many("hotel.folio", string="Folios",
+                                        help="Folios grouped")
+    group_folios = fields.Boolean('Group Folios')
+    line_ids = fields.One2many('line.advance.inv',
+                               'advance_inv_id',
+                               string="Invoice Lines")
+    view_detail = fields.Boolean('View Detail')
+    #Advance Payment
     product_id = fields.Many2one('product.product', string='Down Payment Product',
                                  domain=[('type', '=', 'service')], default=_default_product_id)
-    count = fields.Integer(default=_count, string='# of Orders')
     amount = fields.Float('Down Payment Amount',
                           digits=dp.get_precision('Account'),
                           help="The amount to be invoiced in advance, taxes excluded.")
@@ -139,12 +139,11 @@ class FolioAdvancePaymentInv(models.TransientModel):
     @api.multi
     def create_invoices(self):
         folios = self.env['hotel.folio'].browse(self._context.get('active_ids', []))
-        sale_orders = self.env['sale.order'].browse(folios.mapped('order_id.id'))
 
         if self.advance_payment_method == 'delivered':
-            sale_orders.action_invoice_create()
+            folios.action_invoice_create()
         elif self.advance_payment_method == 'all':
-            sale_orders.action_invoice_create(final=True)
+            folios.action_invoice_create()
         else:
             # Create deposit product if necessary
             if not self.product_id:
@@ -196,3 +195,68 @@ class FolioAdvancePaymentInv(models.TransientModel):
             'property_account_income_id': self.deposit_account_id.id,
             'taxes_id': [(6, 0, self.deposit_taxes_id.ids)],
         }
+
+    @api.onchange('view_detail')
+    def prepare_reservation_invoice_lines(self):
+        vals = []
+        folios = self.env['hotel.folio'].browse(self._context.get('active_ids', []))
+        for folio in folios:
+            folio_name = folio.name
+            for reservation in folio.room_lines:
+                reservation_name = reservation.name
+                unit_price = False
+                discount = False
+                qty = 0
+                for day in reservation.reservation_line_ids.sorted('date'):
+                    if day.price == unit_price and day.discount == discount:
+                        date_to = day.date
+                        qty += 1
+                    else:
+                        if unit_price:
+                            vals.append((0, False, {
+                            'date_from': date_from,
+                            'date_to': date_to,
+                            'room_type_id': reservation.room_type_id,
+                            'product_id': self.env['product.product'].browse(
+                                reservation.room_type_id.product_id.id
+                                ),
+                            'qty': qty,
+                            'discount': discount,
+                            'unit_price': unit_price
+                            }))
+                        qty = 1
+                        unit_price = day.price
+                        date_from = day.date
+                        date_to = day.date
+                vals.append((0, False, {
+                    'date_from': date_from,
+                    'date_to': date_to,
+                    'room_type_id': reservation.room_type_id,
+                    'product_id': self.env['product.product'].browse(
+                        reservation.room_type_id.product_id.id
+                        ),
+                    'qty': qty,
+                    'discount': discount,
+                    'unit_price': unit_price
+                    }))
+        self.line_ids = vals
+
+class LineAdvancePaymentInv(models.TransientModel):
+    _name = "line.advance.inv"
+    _description = "Lines Advance Invoice"
+
+    date_from = fields.Date('From')
+    date_to = fields.Date('To')
+    room_type_id = fields.Many2one('hotel.room.type')
+    product_id = fields.Many2one('product.product', string='Down Payment Product',
+                                 domain=[('type', '=', 'service')])
+    qty = fields.Integer('Quantity')
+    unit_price = fields.Float('Price')
+    advance_inv_id = fields.Many2one('folio.advance.payment.inv')
+    discount = fields.Float(
+        string='Discount (%)',
+        digits=dp.get_precision('Discount'), default=0.0)
+    to_invoice = fields.Boolean('To Invoice')
+                    
+                    
+

hotel/wizard/folio_make_invoice_advance_views.xml

@@ -28,8 +28,23 @@
                         <field name="deposit_taxes_id" class="oe_inline" widget="many2many_tags"
                             domain="[('type_tax_use','=','sale')]"
                             attrs="{'invisible': ['|', ('advance_payment_method', 'not in', ('fixed', 'percentage')), ('product_id', '!=', False)]}"/>
+                        <field name="view_detail" />
+                    </group>
+                    <group>
+                        <field name="line_ids" attrs="{'invisible': [('view_detail', '=', False)]}">
+                            <tree string="Lines" editable="bottom">
+                                <field name="room_type_id" />
+                                <field name="date_from" />
+                                <field name="date_to" />
+                                <field name="qty" />
+                                <field name="discount" />
+                                <field name="unit_price" />
+                            </tree>
+                        </field>
                     </group>
                     <footer>
+                        <button name="prepare_reservation_invoice_lines" string="Prepare Lines" type="object"
+                            class="btn-primary"/>
                         <button name="create_invoices" string="Create and View Invoices" type="object"
                             context="{'open_invoices': True}" class="btn-primary"/>
                         <button name="create_invoices" string="Create Invoices" type="object"