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Prepopulating radio input

#1
[eluser]Bramme[/eluser]
Okay, I'm having a weird problem. Dunno where to go look for the solution though.

I'm building an edit form that has several inputs: textboxes, textareas, some checkboxes and a set of radio inputs.

Now I want to prepopulate the edit form, which works great for the text bits, but I can't get the radio buttons to prepopulate.

Code:
if( empty($this->validation->error_string)) {
    foreach ($fields as $field => $name) {
        $this->validation->$field = $data['tut'][$field];
    }
}
That's the code I use in my controller, it simply puts the values from the DB in if validation hasn't run yet.

Now I've changed the set_radio thingie (which doesn't work with prepopulated data, as it only looks at $_POST and not at $this->validation) with my own if:

Code:
<input type="radio" name="rankID" value="<?=$rank['rankID']?>" id="rank-<?=$rank['rankID']?>" <?php if($select_rank == $rank['rankID']) echo 'selected="selected" '; ?>/>

Now this works, I can see the selected="selected" code in my source code, it changes correctly when you submit the form but validation fails etc.

HOWEVER: it doesn't get selected in the form in the browser itself. Has anybody got any idea what could be causing this?

#2
[eluser]xwero[/eluser]
If you see it changing setting the selected attribute works, or is there something i'm missing here?

#3
[eluser]Bramme[/eluser]
The selected attribute is set. That's the whole weird thing. First I thought it was a FF bug, but it's happening in Chrome too...

Sorry for the crappy screenshot.

#4
[eluser]xwero[/eluser]
a radio button doesn't know the selected attribute. It has the checked attribute. sometimes i'm really clueless Smile

To make it easier on myself i made these functions
Code:
function form_selected($value1,$value2)
{
    return ($value1 == $value2)?' selected="selected"':'';
}

function form_checked($value1,$value2)
{
    return ($value1 == $value2)?' checked="checked"':'';
}

#5
[eluser]Bramme[/eluser]
Oh god. Stupid me once again. And I even checked on the w3schools xhtml reference if it was selected and not checked. Must've gotten confused and thought I was right.


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