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best way to do radio buttons in diet?

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Steven Schveighoffer
Posted Fri, 16 Jun 2017 08:41:53 -0400
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We all know that the web is poorly designed for application development.
I'm struggling with the concept of which radio button should be checked
based on a D variable.

Everyone here probably knows this, but in html, the way you say which
radio button is checked is to add a "checked='anything'" to the radio
button.

Let's say you have a boolean value, and you want to check "yes" or "no"
depending on that value. I'm looking at this code I wrote, and it's awful: 

     #b Boolean is set:
       - if(mybool)
         input#b_yes(type='radio',name='b',value=1,checked='1')
         label(for='b_yes') Yes
         input#b_no(type='radio',name='b',value=0)
         label(for='b_no') No
       - else
         input#b_yes(type='radio',name='b',value=1)
         label(for='b_yes') Yes
         input#b_no(type='radio',name='b',value=0,checked='1')
         label(for='b_no') No

Can diet handle adding or not adding an attribute based on a D boolean?
That would make this a LOT better.

You can imagine a set of radio buttons that is larger being even more
horrible, though looping and nesting the if statement makes it a little
more palatable (but not by much).

-Steve

Re: best way to do radio buttons in diet?

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Steven Schveighoffer
Posted Fri, 16 Jun 2017 08:55:49 -0400 in reply to Steven Schveighoffer
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On 6/16/17 8:41 AM, Steven Schveighoffer wrote:

Can diet handle adding or not adding an attribute based on a D boolean?
That would make this a LOT better.

I will note that pug handles this via:

input(type='radio' name='b' value='0' checked=false) // checked is
omitted from the html

But diet doesn't let me do this (I think):

input(type='radio',name='b',value='0',checked=#{mybool}) // Error:
expression expected, not '#' (and a whole bunch of other errors

-Steve

Re: best way to do radio buttons in diet?

avatar
Steven Schveighoffer
Posted Fri, 16 Jun 2017 09:00:30 -0400 in reply to Steven Schveighoffer
Reply

On 6/16/17 8:55 AM, Steven Schveighoffer wrote:

On 6/16/17 8:41 AM, Steven Schveighoffer wrote:

Can diet handle adding or not adding an attribute based on a D boolean?
That would make this a LOT better.

I will note that pug handles this via:

input(type='radio' name='b' value='0' checked=false) // checked is
omitted from the html

But diet doesn't let me do this (I think):

input(type='radio',name='b',value='0',checked=#{mybool}) // Error:
expression expected, not '#' (and a whole bunch of other errors

Hah, got it to work. Thanks for the detailed spec at
https://github.com/rejectedsoftware/diet-ng/blob/master/SPEC.md !

input(type='radio',name='b',value='0',checked=mybool)

That's actually pretty easy :) I had no idea you could just put a D
expression in there...

-Steve