base_search_resolver.rb

require 'search_object'
require 'search_object/plugin/graphql'

module Resolvers
  class BaseSearchResolver
    include ::SearchObject.module(:graphql)

    scope { [] }
    
    FILTER_BY_DATE_INPUT = begin
      Class.new(Types::BaseInputObject) do
        graphql_name "FilterByDateInput"        
        argument :from, GraphQL::Types::ISO8601DateTime, required: true
        argument :to, GraphQL::Types::ISO8601DateTime, required: true
      end
    end  
    
          
    def self.add_filter_by_datetime_for(klass, exclude:  [])
      klass.datetime_attributes.map do |attribute|  
        next if exclude.includes?(attribute)
        option("filter_by_#{attribute}".to_sym, type: FILTER_BY_DATE_INPUT) { |scope, value|
          if value
            value = value.to_h
            scope.where(attribute => value[:from]..value[:to])
          end
        }
      end
    end
  
  end
end