checkDate issue with Fr language

Hi,

I recently installed your plugin to one of my websites http://boudoir-valeriane.com/booking/

I’m french so I have downloaded translation files from Transifex.

I had an issue when I want to check a date, if I let the default format “d M Y” in French i got an internal server Error 500.

So I searched where I can change the date format and i changed the file
js/datepicker_language/bootstrap-datetimepicker.fr.js
line 16: format: “dd-mm-yyyy”

But this line does nothing, the french file is loaded but I still had the “d M Y” format

So I changed the file
src/SLN/Form.php
line 44: required=”required” data-format=”dd-mm-yyyy” class=”form-control”
line 45: value=”<?php echo ucwords(date_i18n(‘d-m-Y’, $value->format(‘U’))) ?>” data-locale=”<?php echo strtolower(substr(get_locale(),0,2))?>”/></div>

And I got a result but it was not enough, when the AJAX request was done the date input is filled in the “d M Y” format again !!

I found this code on file js/salon.js
line 287: putOptions($(‘#sln_date’), intervals.suggestedDate);

I checked the suggestedDate value and I had to change the file
src/SLN/Helper/Intervals.php
line 237: ‘suggestedDate’ => ucwords(date_i18n(‘d-m-Y’, $this->suggestedDate->format(‘U’))),

But I don’t want to change these files on each update. Can you tell me how to resolve this issue without touching the code .

Regards

https://ww.wp.xz.cn/plugins/salon-booking-system/