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generate js variable names on the fly

Thread began 8/28/2009 3:47 am by CraigR | Last modified 9/10/2009 5:27 am by Dave Buchholz | 3712 views | 6 replies |

CraigRBeta Tester

generate js variable names on the fly

linked to yesterdays post...

showthread.php?t=3625

i have a form with several input fields created from a repeat region, namely price1, price2...etc

the number of fields displayed is dependent on how many sizes are available in the sizes recordset.

i want to apply spry validation to each of the input fields so that only numerical values can be input.

i know how many rows my sized recordset produces, so i can pass this into my js

what i want to do is generate the following on the fly, where * is a row number from the recordset

var sprytextfield* = new Spry.Widget.ValidationTextField("sprytextfield*", "currency", {isRequired:false});

i have the following loop which creates the correct information, but only as text string output, how do i get it to work ??...

<script type="text/javascript">
<!--
var totalsizes = <?php echo "'".$totalRows_rssizes."'"; ?>;//this is the number of rows in the sizes recordset, so this is how many sprytextfields we need
//-->
</script>
<script type="text/javascript">
<!--
var i=1;
for (i=1;i<=totalsizes;i++)
{

document.write("var sprytextfield" + i + " = new Spry.Widget.ValidationTextField('sprytextfield" + i +"', 'currency', {isRequired:false});");
document.write("<br />");
}

sorry, but my js isn't up to much, grateful for any advice

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Dave BuchholzBeta Tester

Craig,

I have combined PHP + JS like this in the past

<script type="text/javascript">
// <![CDATA[
// jQuery calls start here. No need for $(document).ready() here.
<?php
for ($i = 0; $i < ($RepeatSelectionCounter_1 - 1); $i++) {
?>
$("#buyNow_<?php echo $i; ?>").click( function() {
if($(this).is(":checked") ) {
$("#qtyReq_<?php echo $i; ?>").removeAttr("disabled").val(1); // Removed $("#qty_0").val()+1
} else {
$("#qtyReq_<?php echo $i; ?>").attr("disabled", "disabled").val(0);
}

});
<?php
}
?>
// ]]>
</script>



Maybe that will help ?

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CraigRBeta Tester

Hi Dave, thanks for the reply.

As I mentioned, my js isn't up to much, i'll read through your script and see if i can adapt it for my needs.

Regards

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CraigRBeta Tester

still struggling with this

Using php, I can set a js variable ok

var sprytextfieldn = <?php... no problems

now what i can't get my head around is this.

if i have 3 rows in my recordset, how do i create 3 js variables on the fly, so i get

varsprytextfield1 = <?php...
varsprytextfield2 = <?php...
varsprytextfield3 = <?php...

and expand this so it works for n rows ?

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Dave BuchholzBeta Tester

Craig,

are your text fields in a recordset repeat region ? If yes then use a counter like I showed in my earlier example

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CraigRBeta Tester

Cheers Dave

I can't believe I didn't work it out sooner.

<script type="text/javascript">
// <![CDATA[

<?php
for ($i = 1; $i <=$totalRows_rssizes; $i++) {
?>
var sprytextfield<?php echo $i; ?> = <?php echo "new Spry.Widget.ValidationTextField('sprytextfield".$i."', 'currency', {isRequired:false})" ?>;
<?php
}
?>

// ]]>
</script>

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Dave BuchholzBeta Tester

sometimes you can stare at things to long !

glad I could help

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