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Amin Merati
Amin Merati

Reputation: 2291

Saving C# enumeration as string instead of int in ElasticSearch 5

I used to have String attribute on class properties of type enumeration in Elastic Search 2.0 so that enumeration value to be stored as string rather than integer:

public enum PaperType
{
    A4 = 0,
    A3 = 1
}

and class to be stored as document in ElasticSearch

[ElasticsearchType(Name = "Paper")]
public class Paper
{  
  [String(Store = false, Index = FieldIndexOption.Analyzed)]
  public string Name { get; set; }

  [String(Store = false, Index = FieldIndexOption.Analyzed)]
  public PaperType Type { get; set; }
}

So in Type would be stored as A3 or A4 rather than 0 or 1.

in ElasticSearch 5, these attributes have changed,

How could I achieve the same behavior in ElasticSearch 5 or what attribute and how it should be?

Thanks

Upvotes: 1

Views: 1451

Answers (1)

Russ Cam
Russ Cam

Reputation: 125498

Take a look at attribute mapping in the documentation; you're likely looking to map them as Keyword types.

If you want to save all enum as string, you can add the Json.Net StringEnumConverter to the JsonSerializerSettings to use for any type that is an enum.

Upvotes: 0

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