Module: WeaviateRecord::Queries::Select

Included in:
Relation
Defined in:
lib/weaviate_record/queries/select.rb

Overview

This module contains function to perform select query on Weaviate

Instance Method Summary collapse

Instance Method Details

#select(*args) ⇒ Object

Select the attributes to be fetched from the database. You can also pass nested attributes to be fetched. Meta attributes that needs to be fetched should be passed aa a value for key ‘_additional’. In Weaviate, id is also a meta attribute. If select is not called on a Weaviate query, by default it will fetch all normak attributes with id and timestamps.

Example:

Article.select(:content, :title)
Article.select(_additional: :vector)
Article.select( _additional: [:id, :created_at, :updated_at])
Article.select(_additional: { answer: :result })

Article.all #=> fetches id, content, title, created_at, updated_at

There is one more special scenario where you can pass the graphql query directly. It will be used for summarization offered by summarizer module.

Example:

Article.select(_additional: 'summary(properties: ["content"]) { result }')



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# File 'lib/weaviate_record/queries/select.rb', line 27

def select(*args)
  args.each do |arg|
    if arg.is_a? Hash
      @select_options[:nested_attributes].merge! arg
    else
      @select_options[:attributes] << arg.to_s unless @select_options[:attributes].include?(arg.to_s)
    end
  end
  @loaded = false
  self
end