ruby - ransack custom attributes sorting in rails -


i'm trying sort custom attributes using ransack.

my view looks like:

%th= sort_link @open_search, :status_step_name, 'status step', { open_page: '' }, :remote => true

in model:

scope :status_step_name, lambda {|name| approvals.where("status != 'approved'").order("position").first}

this customized column displayed in table. works fine , i'm able display current status step projects, i'm not able sort using column name.

is i'm missing something?? ideas??


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