/ Ruby on Rails
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method

find_some

rails latest stable - Class: ActiveRecord::Base

Method deprecated or moved

This method is deprecated or moved on the latest stable version. The last existing version (v2.3.8) is shown here.

find_some(ids, options)
private

No documentation available.

# File activerecord/lib/active_record/base.rb, line 1620
        def find_some(ids, options)
          conditions = " AND (#{sanitize_sql(options[:conditions])})" if options[:conditions]
          ids_list   = ids.map { |id| quote_value(id,columns_hash[primary_key]) }.join(',')
          options.update :conditions => "#{quoted_table_name}.#{connection.quote_column_name(primary_key)} IN (#{ids_list})#{conditions}"

          result = find_every(options)

          # Determine expected size from limit and offset, not just ids.size.
          expected_size =
            if options[:limit] && ids.size > options[:limit]
              options[:limit]
            else
              ids.size
            end

          # 11 ids with limit 3, offset 9 should give 2 results.
          if options[:offset] && (ids.size - options[:offset] < expected_size)
            expected_size = ids.size - options[:offset]
          end

          if result.size == expected_size
            result
          else
            raise RecordNotFound, "Couldn't find all #{name.pluralize} with IDs (#{ids_list})#{conditions} (found #{result.size} results, but was looking for #{expected_size})"
          end
        end

3Notes

throws exception

bansalakhil · Feb 13, 20091 thank

when use use Model.find([1,2,3,4])

throws exception if no record exists with any of this ID

correction

reynardmh · Nov 3, 20101 thank

I think what metavida meant was

User.find(1, 3) # ActiveRecord::RecordNotFound error not User.find_by_id(1, 3) # this will just return user 1

RecordNotFound when any id not found

metavida · Nov 3, 2010

As an example of bansalakhil's explanation.

User.find_by_id(1) #=> #<User:0x3d54a3c @attributes={"id"=>1}> User.find_by_id(2) #=> #<User:0x3d519a4 @attributes={"id"=>2}> User.find_by_id(3) #=> nil User.find_by_id(1, 2) #=> an Array with 2 User instances User.find_by_id(1, 3) #=> an ActiveRecord::RecordNotFound error