Thread

I have some fields that feed into a PayPal form, one being {price}. Now the need is to create a second form on the same page with a different price, which is always a certain amout greater than the original price (e.g. $10 more).

The aim is to make use of the original {price} to create the new price, rather than having to go through all entries (hundreds of them) adding in a new value in a new field.

I’m no programmer, but all I could think of was to create a PHP variable from the {price} field, then add the extra amount and output the variable in a new form. I couldn’t get it to work, though. I set the PHP to run on output, but it still baulked at the EE code. E.g. it rejected the { here:

<?php $newPrice = {price} + 10; ?>

Does anyone know a way to create a new value based on what’s already in {price}?

give a look to http://www.eec.ms/add-ons/mx-calculator and http://www.eec.ms/index.php/eecms2/add-ons/mx-jumper

i think this two addons will help u.

Thanks ahmad. They look interesting, but I wasn’t able to see how they might help with this issue.

mx-jumper for definea variable and ms-clculator to do the math thing you want.

Ah, I see, both together. Unfortunately, the docs are the usual arcane developer stuff with no explanation.

“mx-jumper for define a variable”

How?

you can find a full doc here http://www.eec.ms/user_guide/mx-jumper/tags.html#lv19

simply if you want to get a val from a channel entries loop you must use {exp:mx_jumper:put_groupt} like this:

{exp:mx_jumper:put_groupt}
{exp:channel:entries channel="widgets" limit="1"}
{exp:mx_jumper:put name="news_title"}{title}{/exp:mx_jumper:put}
{/exp:channel:entries }
The news title is {news_title}.
{/exp:mx_jumper:put_groupt}

Thanks ahmad. I don’t really need to use the new value outside the channel tags, so perhaps I just need mx-calculator. I’m not sure how to use it to add 10 to {price}, though. Any tips on doing that?

“you can find a full doc here”

Indeed, but you have to be a developer to understand that sort of thing, as it’s just a list of functions with no explanation. (I wish developers could appreciate that. Then the EE docs might be of some real use, too!)

I don’t use this addons befor but I think you can use it simply by:

{exp:mx_calc expression="sum({price} ,10)"}  
or
{exp:mx_calc expression="{price} +10"}

Ah, thanks very much ahmad. I’ll give that a go. I really appreciate your assistance. 😊