I have a dynamically created table where row2 and column2 onward elements are input fields. User can change these fields and submit.
I want to put a check so that in any row:
So if the user tries to change any value to an invalid value and click submit button, then an error message should be displayed and form should not be submitted. So only option on the message window should be an OK button which should bring the user back to the old page (before changes were made to any field).
I tried doing it by making use of getElementById() and giving same id for all four input fields in a row, but the getElementById() returns the first element if more than one id exists (id not being unique).
I checked possibility to try getElementsByName() but the value of name attribute is being generated dynamically and only "_good_high", "_warning_low", "_warning_high" and "_critical_low" is constant part of it.
Can you please suggest me some way to add this validation?
Link to jsfiddle is ExampleFiddle
<html>
<head>
<title>CommDesk AdminPage</title>
<meta HTTP-EQUIV="Content-Type" content="text/html; charset=iso-8859-1">
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
addPlusSign();
$(".btn1").click(function(){
$(".expand1").toggle();
var btn1Text = $(".btn1").text();
if(btn1Text.indexOf("+") > -1){
var temp = btn1Text.replace(/\+|\-/ig, '-');
$(".btn1").text(temp);
} else if (btn1Text.indexOf("-") > -1){
var temp = btn1Text.replace(/\+|\-/ig, '+');
$(".btn1").text(temp);
}
});
})
function addPlusSign(){
if($(".expand1")){
var btn1Text = $(".btn1").text();
$(".btn1").text(btn1Text + " [+]");
}
}
$(function () {
$('.admin-form')
//we need to save values from all inputs with class 'admin-input'
.find(':input.admin-input')
.each(function () {
//save old value in each input's data cache
$(this).data('oldValue', $(this).val())
})
.end()
.submit(function (ev) {
var changed = false;
$(':input.admin-input', this).filter(function () {
if($(this).val() != $(this).data('oldValue')){
changed = true;
}
});
if($(this).hasClass('changed') && (!changed)){
alert("None of the thresholds were changed!");
ev.preventDefault()
}
if($(this).hasClass('changed') && changed){
var allowSubmit = window.confirm("You have set a unique threshold for one or more sub-elements below. Are you sure you want to reset them all?")
if (!allowSubmit)
ev.preventDefault()
}
});
});
$(document).on('input', '.admin-input', function(){
$(this).closest('form').addClass('changed');
});
</script>
<style>
.expand1 { display: none;
}
.btn1 { cursor: pointer;
}
body {
background-color: rgb(255,255,255);
font: 15px Verdana, Helvetica, sans-serif;
}
span.note1 {float:left}
span.note2 {font-size:90%}
table#t02, #t02 th, #t02 td {
border: none;
border-collapse: collapse;
font-size:90%;
font-weight:normal;
}
#button1{
position: relative;
top:10px;
left:75%;
color: white;
background-color: rgb(0,89,132);
font-weight: bold;
}
</style>
</head>
<body>
<form id="form1" method="post" class="admin-form">
<div style="float:left; width:50%">
<table id="t02" class="table2">
<tr>
<th style="padding:0 30px 0 0;"></th>
<th></th>
<th style="padding:0 10px 0 0;">Green</th>
<th colspan="3" style="padding:0 10px 0 0">Yellow</th>
<th></th>
<th style="padding:0 10px 0 0">Red</th>
</tr>
<tr>
<td class="btn1" style="padding:0 30px 0 0;"><b>Row1</b></td>
<td><</td>
<td style="padding:0 10px 0 0"><input type="text", class="admin-input", name="acd_call_volume_good_high", value="50", id="1", size="3", maxlength="3"></td>
<td><input type="text", class="admin-input", name="acd_call_volume_warning_low", value="50", id="1", size="3", maxlength="3"></td>
<td>to</td>
<td style="padding:0 10px 0 0"><input type="text", class="admin-input", name="acd_call_volume_warning_high", value="100", id="1", size="3", maxlength="3"></td>
<td>></td>
<td style="padding:0 10px 0 0"><input type="text", class="admin-input", name="acd_call_volume_critical_low", value="100", id="1", size="3", maxlength="3"></td>
</tr>
<tr>
<td align="center" class="expand1">SubRow1</td>
<td class="expand1"><</td>
<td class="expand1"><input type="text", name="acd_call_volume_good_high_SubRow1", value="50", id="2", size="3", maxlength="3"></td>
<td class="expand1"><input type="text", name="acd_call_volume_warning_low_SubRow1", value="50", id="2", size="3", maxlength="3"></td>
<td class="expand1">to</td>
<td class="expand1"><input type="text", name="acd_call_volume_warning_high_SubRow1", value="100", id="2", size="3", maxlength="3"></td>
<td class="expand1">></td>
<td class="expand1"><input type="text", name="acd_call_volume_critical_low_SubRow1", value="100", id="2", size="3", maxlength="3"></td>
</tr>
</table>
<input type="submit" name="submitButton" value="Submit" id="button1" style="height:50px; width:100px"/>
</div>
</form>
</body>
</html>
If you add the following snippet to you main $(function() {....
$( '.admin-input' ).change( function( e ) {
temp = e.target.name.split( '_' )
col = temp[ temp.length-2 ] + '_' + temp[ temp.length-1 ]
#validation logic
})
col
will give you the last part of the changed cell's name eg warning_low
. From there you can do any validation you want.
If you can change your perl code to change the names of the cells slightly so there is a better delimiter to split on, it would clean the code up a little ( eg acd_call_volume-warning_low
) but it's not so important.
I would also google for "jquery validator"
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