AF
Ash Framework•2mo ago
rtorresware

parsing nested fields when argument is a TypedStruct

I have the following typed struct: 
  defmodule WeightRanker do
    use Ash.TypedStruct

    typed_struct do
      field :dense_vector, :float, default: 1
      field :splade_vector_text, :float, default: 1
      field :splade_vector_title, :float, default: 1
      field :splade_vector_tags, :float, default: 1
      field :splade_vector_description, :float, default: 1
      field :bm25_vector_text, :float, default: 1
      field :bm25_vector_title, :float, default: 1
      field :bm25_vector_tags, :float, default: 1
      field :bm25_vector_description, :float, default: 1
    end
  end
  defmodule WeightRanker do
    use Ash.TypedStruct

    typed_struct do
      field :dense_vector, :float, default: 1
      field :splade_vector_text, :float, default: 1
      field :splade_vector_title, :float, default: 1
      field :splade_vector_tags, :float, default: 1
      field :splade_vector_description, :float, default: 1
      field :bm25_vector_text, :float, default: 1
      field :bm25_vector_title, :float, default: 1
      field :bm25_vector_tags, :float, default: 1
      field :bm25_vector_description, :float, default: 1
    end
  end
I want to be able to receive it as an input on an action: argument :weights, Milvus.WeightRanker, default: fn -> Milvus.WeightRanker.new!(%{}) end and have Ash automatically parse something like: %{"weights" => %{"dense_vector" => 0}} and pass the fields into the TypedStruct. Expected: 
%ShAgent.HybridSearch.Milvus.WeightRanker{
  dense_vector: 0,
  splade_vector_text: 1.0,
  splade_vector_title: 1.0,
  splade_vector_tags: 1.0,
  splade_vector_description: 1.0,
  bm25_vector_text: 1.0,
  bm25_vector_title: 1.0,
  bm25_vector_tags: 1.0,
  bm25_vector_description: 1.0
}
%ShAgent.HybridSearch.Milvus.WeightRanker{
  dense_vector: 0,
  splade_vector_text: 1.0,
  splade_vector_title: 1.0,
  splade_vector_tags: 1.0,
  splade_vector_description: 1.0,
  bm25_vector_text: 1.0,
  bm25_vector_title: 1.0,
  bm25_vector_tags: 1.0,
  bm25_vector_description: 1.0
}
Actual result: 
%ShAgent.HybridSearch.Milvus.WeightRanker{
  dense_vector: 1.0, # default value
  splade_vector_text: 1.0,
  splade_vector_title: 1.0,
  splade_vector_tags: 1.0,
  splade_vector_description: 1.0,
  bm25_vector_text: 1.0,
  bm25_vector_title: 1.0,
  bm25_vector_tags: 1.0,
  bm25_vector_description: 1.0
}
%ShAgent.HybridSearch.Milvus.WeightRanker{
  dense_vector: 1.0, # default value
  splade_vector_text: 1.0,
  splade_vector_title: 1.0,
  splade_vector_tags: 1.0,
  splade_vector_description: 1.0,
  bm25_vector_text: 1.0,
  bm25_vector_title: 1.0,
  bm25_vector_tags: 1.0,
  bm25_vector_description: 1.0
}
Is this supported? Am I doing something wrong?
Solution:
works on latest ash version
Jump to solution
2 Replies
rtorresware
rtorreswareOP•2mo ago
Hmm it seems that it is not supported: 
ShAgent.HybridSearch.Milvus.WeightRanker |> Ash.Type.cast_input(%{"dense_vector" => 0})
{:ok,
 %ShAgent.HybridSearch.Milvus.WeightRanker{
   dense_vector: 1.0,
   splade_vector_text: 1.0,
   splade_vector_title: 1.0,
   splade_vector_tags: 1.0,
   splade_vector_description: 1.0,
   bm25_vector_text: 1.0,
   bm25_vector_title: 1.0,
   bm25_vector_tags: 1.0,
   bm25_vector_description: 1.0
 }}
ShAgent.HybridSearch.Milvus.WeightRanker |> Ash.Type.cast_input(%{"dense_vector" => 0})
{:ok,
 %ShAgent.HybridSearch.Milvus.WeightRanker{
   dense_vector: 1.0,
   splade_vector_text: 1.0,
   splade_vector_title: 1.0,
   splade_vector_tags: 1.0,
   splade_vector_description: 1.0,
   bm25_vector_text: 1.0,
   bm25_vector_title: 1.0,
   bm25_vector_tags: 1.0,
   bm25_vector_description: 1.0
 }}
Solution
rtorresware
rtorresware•2mo ago
works on latest ash version

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