Calendar widget (jQuery UI DatePicker) with numberOfMonths = 2 or more

[atihomirov]

Preconditions

1. Magento version 2.1.1
2. file \lib\web\mage\calendar.js

Steps to reproduce

1. set options to widget 'numberOfMonths'=> array(1,3),
2. set options on widget to any non-default values for 'numberOfMonths'

Expected result

1. jQuery UI DatePicker Widget with a list of months

Actual result

1. the first month is normal - the remaining corrupted
2. month header repeat
3. next month days not show

change:
add line 248: "calender = '';
reinit loop values
line 277: for (dow=0;...
line 295: for (dRow=0;...

[tkacheva]

@atihomirov Thanks for reporting! please explain the business case you try to achieve here.

[atihomirov]

using extension "Amasty delivery date" the client needs to display multiple months for clarity.
the code for the call:

$elements['deliverydate_date'] = [
                    'component' => 'Amasty_Deliverydate/js/checkout/date',
...
                    'config' => [
...
                        'options' => ['amdeliveryconf' => $this->deliveryHelper->getDeliveryConfig(),
                                      'numberOfMonths'=> array(1,2),  ],
                    ]
                ];

or, for reproduce: in file \lib\web\mage\calendar.js change

line 127:                    navigationAsDateFormat = this._get(inst, 'navigationAsDateFormat'),
line 128:                    numMonths = [1,2],
line 129:                    showCurrentAtPos = this._get(inst, 'showCurrentAtPos'),

могу подробнее описать на русском, если нужно.

[tkacheva]

@atihomirov I appreciate the actual result screenshot as well. The rest is clear.

[atihomirov]

[atihomirov]

1 image
if not set calendar=""; - Widget shows the calendar text in the recursion (november 1, november 2 + december )
if not set dRow=0; dow=0; - Widget not show deсember dates because the dates have become 31 and would never again 1 of the month

[tkacheva]

issue MAGETWO-61209