autocomplete through Array of strings in Rails 4

Question

I'm using this gist to build autocomplete functionality in my Rails app.

I'm saving record in Shoe model attribute like below

"nike air, nike steam,nike softy ,nike strength"  #comma separated words

My controller code is below

def shoes
  shoes_list = []
  shoes = Shoe.all

  shoes.each do |shoe|
    shoes_list << shoe.model.split(',')
  end unless shoes.blank?

  if params[:term]
    like = "%".concat(params[:term].concat("%"))
    # shoes = Shoe.where("model like ?", like)
    # **How i make like query to "shoes_list" same like above commented line?**
  else
    shoes = Shoe.all
  end

  list = shoes.map { |u| Hash[id: u.id, label: u.model, model: u.model] }
  render json: list
end

How do I render it in json format?

The very first line of the gist says "autocomplete under Rails 3.1," and you're using it with Rails 4? — Substantial
– Substantial, Commented Jun 3, 2013 at 8:09
It is working with Rails 4. But now my requirement changed that i want to autocomplete in little more complex way. I will first save multiple comma separated words in Shoe (model attribute).Then on base of all words exists in all rows of shoes table. Then split it all on the base of comma to make it single word and use all these words for autocomplete. — Muhammad Kashif Ali
– Muhammad Kashif Ali, Commented Jun 3, 2013 at 8:13
So you basically want a single CSV string to act as multiple autocomplete values? — Substantial
– Substantial, Commented Jun 3, 2013 at 8:21
Not multiautocomplete, use it for single autocomplete(for one word) — Muhammad Kashif Ali
– Muhammad Kashif Ali, Commented Jun 3, 2013 at 8:22
No, I meant multiple strings that will hit the same Shoe record. For example, if I start typing nike, it will show autocomplete suggestions nike air, nike steam, nike softy, nike strength... all separate words but all pointing to the same Shoe record? — Substantial
– Substantial, Commented Jun 3, 2013 at 8:40

Community · Accepted Answer · 2017-05-23 11:57:23Z

1

At last this code works for me.

         def shoes
              shoes_list = []
              shoes = Shoe.all
              shoes.each do |shoe|
                shoes_list << shoe.model.split(',')
              end unless shoes.blank?
              shoes_list.flatten!

              if params[:term]
                shoes = shoes_list.grep(Regexp.new( Regexp.escape(params[:term]), "i" ))
              else
                shoes = shoes_list
              end
            list = shoes.map {|u| Hash[id: u, label: u, name: u]}
            render json: list
          end

Also see How get value from array of strings in Ruby 2.0

edited May 23, 2017 at 11:57

CommunityBot

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answered Jun 4, 2013 at 1:50

Muhammad Kashif Ali

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