Class: ElasticGraph::GraphQL::QueryAdapter::Sort

Inherits:
Data
  • Object
show all
Defined in:
lib/elastic_graph/graphql/query_adapter/sort.rb

Overview

Note: This class is not tested directly but indirectly through specs on ‘QueryAdapter`

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#order_by_arg_name ⇒ Object (readonly)

Returns the value of attribute order_by_arg_name

Returns:

  • (Object) —

    the current value of order_by_arg_name



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# File 'lib/elastic_graph/graphql/query_adapter/sort.rb', line 13

def order_by_arg_name
  @order_by_arg_name
end

Instance Method Details

#call(query:, args:, field:, lookahead:, context:) ⇒ Object 



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# File 'lib/elastic_graph/graphql/query_adapter/sort.rb', line 15

def call(query:, args:, field:, lookahead:, context:)
  sort_clauses = field.sort_clauses_for(args[order_by_arg_name])

  if sort_clauses.empty?
    # When there are multiple search index definitions, we just need to pick one as the
    # source of the default sort clauses. It doesn't really matter which (if the client
    # really cared, they would have provided an `order_by` argument...) but we want our
    # logic to be consistent and deterministic, so we just use the alphabetically first
    # index here.
    sort_clauses = (_ = query.search_index_definitions.min_by(&:name)).default_sort_clauses
  end

  query.merge_with(sort: sort_clauses)
end