lib/agnostic_backend/indexable/content_manager.rb
module AgnosticBackend
module Indexable
class ContentManager
def add_definitions &block
return unless block_given?
instance_eval &block
end
def contents
@contents ||= {}
end
def method_missing(sym, *args, **kwargs)
if FieldType.exists? sym
kwargs[:type] = sym
field(*args, **kwargs)
else
super
end
end
def respond_to?(sym, include_private=false)
FieldType.exists?(sym) || super
end
def field(field_name, value: nil, type:, from: nil, **options)
contents[field_name.to_s] = Field.new(value.present? ? value : field_name, type,
from: from, **options)
end
def extract_contents_from(object, index_name, observer:)
kv_pairs = contents.map do |field_name, field|
field_value = field.evaluate(context: object)
if field.type.nested?
if field_value.respond_to? :generate_document
observer.add(field_value)
field_value = field_value.generate_document(for_index: index_name, observer: observer)
elsif field_value.present?
field_name = nil
end
end
[field_name, field_value]
end
kv_pairs.reject! { |attr_name, _| attr_name.nil? }
Hash[kv_pairs]
end
end
end
end