class Elasticsearch::DSL::Search::Filters::HasChild

A filter which returns parent documents for children documents matching a query or a filter

@example Return articles where John has commented

search do
  query do
    filtered do
      filter do
        has_child do
          type 'comment'
          query do
            match author: 'John'
          end
        end
      end
    end
  end
end

@see www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-has-child-filter.html

Public Instance Methods

filter(*args, &block) click to toggle source

DSL method for building the `filter` part of the query definition

@return [self]

# File lib/elasticsearch/dsl/search/filters/has_child.rb, line 65
def filter(*args, &block)
  @filter = block ? Elasticsearch::DSL::Search::Filter.new(*args, &block) : args.first
  self
end
query(*args, &block) click to toggle source

DSL method for building the `query` part of the query definition

@return [self]

# File lib/elasticsearch/dsl/search/filters/has_child.rb, line 56
def query(*args, &block)
  @query = block ? Elasticsearch::DSL::Search::Query.new(*args, &block) : args.first
  self
end
to_hash() click to toggle source

Converts the query definition to a Hash

@return [Hash]

Calls superclass method
# File lib/elasticsearch/dsl/search/filters/has_child.rb, line 74
def to_hash
  hash = super
  if @query
    _query = @query.respond_to?(:to_hash) ? @query.to_hash : @query
    hash[self.name].update(query: _query)
  end
  if @filter
    _filter = @filter.respond_to?(:to_hash) ? @filter.to_hash : @filter
    hash[self.name].update(filter: _filter)
  end
  hash
end