check if column.css_class is a Proc
check if column.css_class is a Proc

activescaffold/active_scaffold,budree/active_scaffold,mallikarjunayaddala/active_scaffold,activescaffold/active_scaffold,activescaffold/active_scaffold,AlbertoBarrago/active_scaffold,AlbertoBarrago/active_scaffold,budree/active_scaffold,mallikarjunayaddala/active_scaffold,mallikarjunayaddala/active_scaffold,budree/active_scaffold,AlbertoBarrago/active_scaffold