The patch to implement: Validate properties specified for sorting and grouping in index views. Original patch from martin.v.loewis via: https://hg.python.org/tracker/roundup/rev/439bd3060df2 Applied by John Rouillard with some modification to properly identify if the bad property is a sort or grouping property. Tests added. has an issue with the current code base. Apparently sometime it can be entered without self.classname being defined. As a result the property lookup fails. So guard it by checking for self.classname in a couple of spots and if self.classname is not set just append the property and let the target action sort it out.

//
// Layouts
// --------------------------------------------------


// Container (centered, fixed-width layouts)
.container {
  .container-fixed();
}

// Fluid layouts (left aligned, with sidebar, min- & max-width content)
.container-fluid {
  padding-right: @gridGutterWidth;
  padding-left: @gridGutterWidth;
  .clearfix();
}