I have a form, where I need to choose the dates, which in this case would be multiple.
I'm using this plugin / JQuery component: link
My problem is that I do not want to save the selected dates, but the ones that are not marked.
Very simple example:
I choose 10/10/2016
I have to receive in my input text:
01/10/2016, 10/02/2016 ... with the exception of 10/10/2016.
Code:
link
Cycles to run all dates in the given month and filters out the ones you do not want.
For this you need a onSelect in the plugin options, as callback of the change of values.
It would look like this:
$('#datePick').multiDatesPicker({
dateFormat: "yy-m-d", // para ter ano com 4 casas
onSelect: function(str) {
var arrayDeDatas = this.value.split(',').map(function(str) {
return str.trim();
});
var invertidas = inverterEscolha(arrayDeDatas);
alert(JSON.stringify(invertidas, null, 4)); // só para o exemplo
}
});
function dataFormatada(d) {
return [d.getFullYear(), d.getMonth() + 1, d.getDate()].join('-');
}
function inverterEscolha(datas) {
var inicio = datas.slice(0, 1)[0].split('-').map(Number);
var fim = datas.slice(-1)[0].split('-').map(Number);
var data = new Date(inicio[0], inicio[1] - 1); // esta data vai sendo mudada dentro do loop
var limite = new Date(fim[0], fim[1], 0); // ultimo dia do mês escolhido
var datasInvertidas = [];
var contador = 0;
while (data < limite) {
contador++;
data = new Date(inicio[0], inicio[1] - 1, contador);
var str = dataFormatada(data);
if (datas.indexOf(str) == -1) datasInvertidas.push(data);
}
return datasInvertidas.map(dataFormatada);
}
You can check the click of your submit button, in case you change a link (), get the dates that were selected in the input and check them in a loop the dates you want to capture, at the end call submit form . Below is a function to check the last day of the month that can help with this logic.
function daysInMonth(month,year) {
var m = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31];
if (month != 2) return m[month - 1];
if (year % 4 != 0) return m[1];
if (year % 100 == 0 && year%400 != 0) return m[1];
return m[1] + 1;
}