Indexes

dunixir_2/lib/local_augmentation_example.ex

+defmodule Index.Augmentation do
+  defmodule IIndex do
+    def pubUnique(local_iindex,global_iindex,key) do
+      [{key,entry}] = :ets.lookup(local_iindex,key) ## key is supposed to be unique for local tables
+      if :dets.match(global_iindex,{:"$1",%{pub: entry.pub}}) == [] do ##match global index entries on public key
+       :ets.insert(local_iindex,{key,Map.merge(entry,%{pubUnique: true})}) ## Map.merge(entry,%{pubUnique: ...}) appends the entry and the new field
+      else
+        :ets.insert(local_iindex,{key,Map.merge(entry,%{pubUnique: false})})
+      end
+    end
+  end
+
+end