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Sending variable as data in a form

Connectivity v6
we
webbusteruk 23 Jan, 2019
Probably a pretty simple answer to this, but couldn't figure it out.
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We've got a form in CCv6, where the user will enter values in multiple input boxes (ie L01, L02, L03, L04) within a form. We need to sum those values into one (ie M1) and send this as data within the same form.
$M1 = $L01 + $L02 + $L03 + $L04
How do we pass a variable (ie $M1) as input data in the form? Do we need to create a hidden input field (M1), but then how do we pass the variable $M1 into the field?
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healyhatman 24 Jan, 2019
Any reason why you can't just accept the form inputs and sum them on submission? Any reason why you want them summed BEFORE submission?
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webbusteruk 24 Jan, 2019
How do you sum them on submission?
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Tried putting M1:{data:L01} + {data:L02} +... in the save data function but obviously it didn't work.
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healyhatman 24 Jan, 2019
Answer
1 Likes
You can either rename the fields to L[0] L[1] etc etc and then use {data.sum:L} or use PHP
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return $this->data("L01") + $this->data("L02") etc etc
Then in save data action use {var:phpblockname}
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