Contents

module CassandraObject
  module FinderMethods
    extend ActiveSupport::Concern

    module ClassMethods
      def find(key)
        key_string = key.try :to_s

        if key_string.blank?
          raise CassandraObject::RecordNotFound, "Couldn't find #{self.name} with key #{key.inspect}"
        elsif attributes = connection.get(column_family, key_string).presence
          instantiate(key_string, attributes)
        else
          raise CassandraObject::RecordNotFound
        end
      end

      def find_by_id(key)
        find(key)
      rescue CassandraObject::RecordNotFound
        nil
      end

      def all(options = {})
        limit = options[:limit] || 100
        results = ActiveSupport::Notifications.instrument("get_range.cassandra_object", column_family: column_family, key_count: limit) do
          connection.get_range(column_family, key_count: limit, consistency: thrift_read_consistency)
        end

        results.map do |k, v|
          v.empty? ? nil : instantiate(k, v)
        end.compact
      end

      def first(options = {})
        all(options.merge(limit: 1)).first
      end

      def find_with_ids(*ids)
        ids = ids.flatten
        return ids if ids.empty?

        ids = ids.compact.map(&:to_s).uniq

        multi_get(ids).values.compact
      end

      def count
        connection.count_range(column_family)
      end

      def multi_get(keys, options={})
        attribute_results = ActiveSupport::Notifications.instrument("multi_get.cassandra_object", column_family: column_family, keys: keys) do
          connection.multi_get(column_family, keys.map(&:to_s), consistency: thrift_read_consistency)
        end

        attribute_results.inject({}) do |memo, (key, attributes)|
          if attributes.empty?
            memo[key] = nil
          else
            memo[parse_key(key)] = instantiate(key, attributes)
          end
          memo
        end
      end
    end
  end
end

Version data entries

7 entries across 7 versions & 1 rubygems

Version	Path
gotime-cassandra_object-2.7.1	lib/cassandra_object/finder_methods.rb
gotime-cassandra_object-2.7.0	lib/cassandra_object/finder_methods.rb
gotime-cassandra_object-2.6.4	lib/cassandra_object/finder_methods.rb
gotime-cassandra_object-2.6.3	lib/cassandra_object/finder_methods.rb
gotime-cassandra_object-2.6.2	lib/cassandra_object/finder_methods.rb
gotime-cassandra_object-2.6.1	lib/cassandra_object/finder_methods.rb
gotime-cassandra_object-2.6.0	lib/cassandra_object/finder_methods.rb