How to customize json output from controller in rails -


i have controller returns list of categories , count of items in each category

category.joins(:item).group([:category_id,:name]).count

i clean json formatting

(which category_id, :name, :count )

{"[10, \"fruit.\"]":2,"[11, \"vegetables.\"]":1,"[2, \"pasty.\"]":1}

to this

{"categoryitemcount":[ {"id":10,"name":"fruit","count":7}]}

so custom root name along named columns

thanks in advance!

the solution demoed in railscast #219. create model not backed database , represents data want send back. in case categoryitemcount.rb (id, name, count). built array of these on fly using query given above, , output json.


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