Browser back button when selecting a list of values
I am trying to save a list of values from dropdowns when a browser button is clicked after a form is submitted. I tried using bbq jQuery Ben Alman but couldn't get everything to work. Here 's what I tried. Please, help.
Thank you very much in advance.
Html
<form action="something.py" id="formName">
<table id = "tabName">
<tr>
<th>Name</th><th>Number</th>
</tr>
<tr>
<td>
<select id="myname" name="myname">
<option value="a">a</option>
<option value="b">b</option>
<option value="c">c</option>
</select>
</td>
<td>
<select id="mynumber" name="mynumber">
<option value="1">1</option>
<option value="2">2</option>
<option value="3">3</option>
</select>
</td>
</tr>
</table>
<input type="submit" value="submit" />
</form>
JQuery
var selected_value = [];
$('#mynumber').change(function() {
var name = $('#myname').val();
var number = $('#mynumber').val();
$("#tabName tr:last").before("<tr><td>" + name + "</td><td>" + number + "</td></tr>");
selected_value.push(name);
});
$('#formName').submit(function() {
$.bbq.pushState({
values: selected_value
});
//return false;
});
$(window).bind("hashchange", function(e) {
var values = $.bbq.getState("url");
if (selected_value === values) {
$(this).addClass("current");
} else {
$(this).removeClass("current");
}
});
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2 answers
My solution (no cookies or localStorage) based on location.hash:
function addRow(name, number){
$("#tabName tr:last").before("<tr><td>" + name + "</td><td>" + number + "</td></tr>");
}
$(function(){
if(location.hash){
var rows = location.hash.substr(1).split(';');
for(var i = 0; i < rows.length; i++){
var row = rows[i].split(',');
if(row.length == 2){
addRow(row[0], row[1]);
}
}
}
$('#mynumber').change(function() {
var name = $('#myname').val();
var number = $('#mynumber').val();
location.hash = location.hash + (location.hash ? ';' : '') + name + ',' + number;
addRow(name, number);
});
});
I think it does what you asked for - if not, please give me some comments in the comments.
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$('#formName').submit(function() {
$.bbq.pushState({
values: selected_value
});
//return false;
});
it should be
$('#formName').submit(function() {
$.bbq.pushState({
values: selected_value
});
//return false;
});
and
var values = $.bbq.getState("url");
it should be
var values = $.bbq.getState("values");
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