Set background color accordion heading - css

Question

I want to change the color of an accordion depending on status on the current item in the list.
I want to use something like ng-class="{status: item.status}" (where I have testClass: true)
The problem now is that I can't set the color of the whole accordion heading.
<accordion>
<accordion-group ng-repeat="item in items" class="animate-repeat" is-open="status.open">
<accordion-heading>
<div ng-class="{testClass: true}">
<p>Test</p>
</div>
</accordion-heading>
<div class="row">
<div class="col-sm-12 col-xs-12">
<div class="text-content font-size-14">{{item.text}}</div>
</div>
</div>
</div>
</accordion-group>
</accordion>
CSS
.testClass {
background-color: burlywood;
}
Any idea how to solve this?
I found similar problem here, but the solution didn't work for me
https://github.com/angular-ui/bootstrap/issues/3038
fiddle:
http://jsfiddle.net/f8ce1b0w/2/

Answer 1

Apply the class to the 'accordion-group' and then style with css.
HTML
<accordion-group ng-controller='MyAccordionGroupController' class="test" is-open="isopen">
CSS
.panel {
&.test {
& > .panel-heading {
background-color: red;
}
}
}
http://jsfiddle.net/BramG/f8ce1b0w/8/

Answer 2

You'll want to move the applied class higher in the hierarchy:
http://jsfiddle.net/f8ce1b0w/7/
Then your css will look like :
.panel-warning .panel-heading {
//customize your css here
}
The problem is you are placing the test-item inside an item with padding. Instead, place the test-item-class higher up, and then use css to target the items.
If your states will match to Bootstrap states, then you may want the validation class names from here: https://getbootstrap.com/docs/4.0/migration/#panels
(panel-success, panel-info, panel-warning, panel-danger)
These class names are already in your Bootstrap css.

Answer 3

This is the solution to your problem
.test{
background-color: red;
}
.test-parent.panel-default > .panel-heading {
background-color:red;
}
<accordion-group ng-controller='MyAccordionGroupController' is-open="isopen" class="test-parent">
<accordion-heading>
<div class="test">
I can have markup, too!
</div>
</accordion-heading>
This is just some content to illustrate fancy headings.
</accordion-group>