basic version of search implemented

front-api/controllers/search.rb

@@ -1,7 +1,17 @@
+# TODO: make this private, not-public facing.
+# for now we keep this here for simplicity reasons
 get '/search/index' do
   es_client = Elasticsearch::Client.new log: true
 
-  all_items = Item.all.to_a
+  # first delete the index
+  begin
+      es_client.indices.delete index: 'ribica'
+  rescue
+      logger.warn "Ribica index could not be deleted. Continuing with indexing operation..."
+  end
+
+  # now index items
+  all_items = Item.includes(sub_category: { category: :section }).all.to_a
   all_items.each do |item|
       es_client.index  index: 'ribica', type: 'items', id: item.id, body: { 
           title: 'Test',
@@ -16,3 +26,39 @@ get '/search/index' do
 
   "ok".to_json
 end
+
+get '/search' do
+  es_client = Elasticsearch::Client.new log: true
+  q = params[:q]
+
+  # for now we do the basic query
+  results = es_client.search index: 'ribica', type: 'items', body: { query: { match: { _all: q } } }
+  ids = results["hits"]["hits"].map do |r|
+   r["_id"]
+  end
+
+  ids_with_score = {}
+  results["hits"]["hits"].each do |r|
+   ids_with_score[r["_id"].to_i] = {:score => r["_score"], :item => nil}
+  end
+
+  if ids.length > 0
+      res = Item.where(:id => ids).to_a
+      # make sure we have correct relevance order, since `where in` does not guarantee order
+      res.each do |ii|
+          ids_with_score[ii.id][:item] = ii
+      end
+      final = []
+      ids_with_score.each do |k,v|
+          final << v
+      end
+      final.sort_by! {|v| -v[:score]}
+
+      final = final.map do |f|
+          f[:item]
+      end
+      prepare_items_for_mass_display(final)
+  else
+      [].to_json
+  end
+end