如何計算Odoo晚酒店管理模塊的8號

Question

我對酒店管理模塊工作在odoo版本8

我希望計算住宿天數留入住日期和退房日期之間。誰能幫我這個？

我定義了一個預訂類，使用更改方法進行簽入和簽出。我試着計算一個函數total_nights。這裏是我的代碼，

class hotel_reservation(osv.Model): 
_name = "hotel.reservation" 
_rec_name = "reservation_no" 
_description = "Reservation" 
_order = 'reservation_no desc' 
_columns = { 
    'reservation_no': fields.char('Reservation No', size=64, required=True, readonly=True), 
    'date_order':fields.datetime('Date Ordered', required=True, readonly=True, states={'draft':[('readonly', False)]}), 
    'warehouse_id':fields.many2one('stock.warehouse', 'Hotel', readonly=True, required=True, states={'draft':[('readonly', False)]}), 
    'partner_id':fields.many2one('res.partner', 'Guest Name', readonly=True, required=True, states={'draft':[('readonly', False)]}), 
    'pricelist_id':fields.many2one('product.pricelist', 'Price List', required=True, readonly=True, states={'draft':[('readonly', False)]}, help="Pricelist for current reservation. "), 
    'partner_invoice_id':fields.many2one('res.partner', 'Invoice Address', readonly=True, states={'draft':[('readonly', False)]}, help="Invoice address for current reservation. "), 
    'partner_order_id':fields.many2one('res.partner', 'Ordering Contact', readonly=True, states={'draft':[('readonly', False)]}, help="The name and address of the contact that requested the order or quotation."), 
    'partner_shipping_id':fields.many2one('res.partner', 'Delivery Address', readonly=True, states={'draft':[('readonly', False)]}, help="Delivery address for current reservation. "), 
    'checkin': fields.datetime('Expected-Date-Arrival', required=True, readonly=True, states={'draft':[('readonly', False)]}), 
    'checkout': fields.datetime('Expected-Date-Departure', required=True, readonly=True, states={'draft':[('readonly', False)]}), 
    'adults':fields.integer('Adults', size=64, readonly=True, states={'draft':[('readonly', False)]}, help='List of adults there in guest list. '), 
    'children':fields.integer('Children', size=64, readonly=True, states={'draft':[('readonly', False)]}, help='Number of children there in guest list. '), 
    'reservation_line':fields.one2many('hotel_reservation.line', 'line_id', 'Reservation Line', help='Hotel room reservation details. '), 
    'state': fields.selection([('draft', 'Draft'), ('confirm', 'Confirm'), ('cancel', 'Cancel'), ('done', 'Done')], 'State', readonly=True), 
    'folio_id': fields.many2many('hotel.folio', 'hotel_folio_reservation_rel', 'order_id', 'invoice_id', 'Folio'), 
    'dummy': fields.datetime('Dummy'), 
    #'No_of_nights': fields.integer('Number of Nights', size=64, readonly=True, states={'draft':[('readonly', False)]}, help='Number of Nights.'), 
    'no_of_nights':fields.function(_total_nights, string='Amount to be returned', 
            store={ 
              'value': (lambda self, cr, uid, ids, c={}: ids, ['amount', 'roi'], 10), 
              },), 
} 
_defaults = { 
    'reservation_no': lambda obj, cr, uid, context: obj.pool.get('ir.sequence').get(cr, uid, 'hotel.reservation'), 
    'state': lambda *a: 'draft', 
    'date_order': lambda *a: time.strftime('%Y-%m-%d %H:%M:%S'), 
} 

def on_change_checkin(self, cr, uid, ids, date_order, checkin_date=time.strftime('%Y-%m-%d %H:%M:%S'), context=None): 
    if date_order and checkin_date: 
     if checkin_date < date_order: 
      raise osv.except_osv(_('Warning'), _('Checkin date should be greater than the current date.')) 
    return {'value':{}} 

def on_change_checkout(self, cr, uid, ids, checkin_date=time.strftime('%Y-%m-%d %H:%M:%S'), checkout_date=time.strftime('%Y-%m-%d %H:%M:%S'), context=None): 
    if not (checkout_date and checkin_date): 
     return {'value':{}} 
    if checkout_date < checkin_date: 
     raise osv.except_osv(_('Warning'), _('Checkout date should be greater than the Checkin date.')) 
    delta = datetime.timedelta(days=1) 
    addDays = datetime.datetime(*time.strptime(checkout_date, '%Y-%m-%d %H:%M:%S')[:5]) + delta 
    val = {'value':{'dummy':addDays.strftime('%Y-%m-%d %H:%M:%S')}} 
    return val  

def onchange_partner_id(self, cr, uid, ids, partner_id): 
    if not partner_id: 
     return {'value':{'partner_invoice_id': False, 'partner_shipping_id':False, 'partner_order_id':False}} 
    partner_obj = self.pool.get('res.partner') 
    addr = partner_obj.address_get(cr, uid, [partner_id], ['delivery', 'invoice', 'contact']) 
    pricelist = partner_obj.browse(cr, uid, partner_id).property_product_pricelist.id 
    return {'value':{'partner_invoice_id': addr['invoice'], 'partner_order_id':addr['contact'], 'partner_shipping_id':addr['delivery'], 'pricelist_id': pricelist}} 

def total_nights(self, cr, uid, ids, context=None): 
    print("Function for Calculating total Nights !") 

    context = context or {} 

    res = {} 
    ''''''   
    for value in self.browse(cr, uid, ids, checkin_date=time.strftime('%Y-%m-%d %H:%M:%S'), checkout_date=time.strftime('%Y-%m-%d %H:%M:%S'), context=context): 

     check_in = datetime.strptime(check_in, "%Y-%m-%d") 
     check_out = datetime.strptime(check_out, "%Y-%m-%d") 
     delta = check_out - check_in 

     print delta.days 

    return res 

class hotel_room_reservation_line(osv.Model): 
_name = 'hotel.room.reservation.line' 
_description = 'Hotel Room Reservation' 
_rec_name = 'room_id' 
_columns = { 
    'room_id': fields.many2one('hotel.room', 'Room id'), 
    'check_in':fields.datetime('Check In Date', required=True), 
    'check_out': fields.datetime('Check Out Date', required=True), 
    'state': fields.selection([('assigned', 'Assigned'), ('unassigned', 'Unassigned')], 'Room Status'), 
    'reservation_id': fields.many2one('hotel.reservation', 'Reservation'), 
} 

hotel_room_reservation_line() 

Answer 1

此代碼可以幫助你：

# Making difference in dates to get no. of days ..... 

@api.one 
@api.onchange('check_in') 
def onchange_date_time(self): 
    # print 'working till now ----------------------------' 
    if self.check_in: 
     check_in = datetime.datetime.strptime(self.check_in, "%Y-%m-%d").date() 
     if check_in<datetime.date.today(): 
      #raise except_orm('Error','Please enter the correct date') 
      self.check_in = None 
     else: 
      pass 


@api.one 
@api.onchange('check_out') 
def onchange_check_out(self): 
    if self.check_out: 
     check_out = datetime.datetime.strptime(self.check_out, "%Y-%m-%d").date() 
     check_in = datetime.datetime.strptime(self.check_in, "%Y-%m-%d").date() 
     if check_out<datetime.date.today(): 
      self.check_out = False 
      # if not self.check_out: 
       # raise osv.except_orm('Error','Please enter the correct date') 

     else: 
      pass 


@api.onchange('check_out') 
def onchange_num_day(self): 
    if self.check_out and self.check_in: 
     check_in = datetime.datetime.strptime(self.check_in, "%Y-%m-%d").date() 
     check_out = datetime.datetime.strptime(self.check_out, "%Y-%m-%d").date() 
     self.days = (check_out-check_in).days+1 
     if self.days == 0: 
      self.days = 1 

    #Hence we will get No.of days .. Ends 

領域：checked_in，checked_out，天

感謝