Class: ElasticGraph::GraphQL::QueryAdapter

Inherits:

Object

Object
ElasticGraph::GraphQL::QueryAdapter

show all

Defined in:: lib/elastic_graph/graphql/query_adapter/sort.rb,
lib/elastic_graph/graphql/query_adapter/filters.rb,
lib/elastic_graph/graphql/query_adapter/pagination.rb,
lib/elastic_graph/graphql/query_adapter/requested_fields.rb

Defined Under Namespace

Classes: Filters, RequestedFields

Constant Summary collapse

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

Data.define(:order_by_arg_name) do
  # @implements Sort
  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
end

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

Data.define(:schema_element_names) do
  # @implements Pagination
  def call(query:, args:, lookahead:, field:, context:)
    return query unless field.type.unwrap_fully.indexed_document?

    document_pagination = [:first, :before, :last, :after].to_h do |key|
      [key, args[schema_element_names.public_send(key)]]
    end

    query.merge_with(document_pagination: document_pagination)
  end
end