operation.rb in activeset-0.8.0

- old
+ new

@@ -1,7 +1,10 @@
 # frozen_string_literal: true
 
+require_relative './enumerable_strategy'
+require_relative './active_record_strategy'
+
 class ActiveSet
   module Paginating
     class Operation
       def initialize(set, instructions_hash)
         @set = set
@@ -43,60 +46,9 @@
         # https://work.stevegrossi.com/2015/04/25/how-to-count-with-activerecord/
         maybe_integer_or_hash = set.size
         return maybe_integer_or_hash.count if maybe_integer_or_hash.is_a?(Hash)
 
         maybe_integer_or_hash
-      end
-    end
-
-    class EnumerableStrategy
-      def initialize(set, operation_instructions)
-        @set = set
-        @operation_instructions = operation_instructions
-      end
-
-      def execute
-        return [] if @set.count <= @operation_instructions[:size] &&
-                     @operation_instructions[:page] > 1
-
-        @set[page_start..page_end] || []
-      end
-
-      private
-
-      def page_start
-        return 0 if @operation_instructions[:page] == 1
-
-        @operation_instructions[:size] * (@operation_instructions[:page] - 1)
-      end
-
-      def page_end
-        return page_start if @operation_instructions[:size] == 1
-
-        page_start + @operation_instructions[:size] - 1
-      end
-    end
-
-    class ActiveRecordStrategy
-      def initialize(set, operation_instructions)
-        @set = set
-        @operation_instructions = operation_instructions
-      end
-
-      def execute
-        return false unless @set.respond_to? :to_sql
-        return @set.none if @set.length <= @operation_instructions[:size] &&
-                            @operation_instructions[:page] > 1
-
-        @set.limit(@operation_instructions[:size]).offset(page_offset)
-      end
-
-      private
-
-      def page_offset
-        return 0 if @operation_instructions[:page] == 1
-
-        @operation_instructions[:size] * (@operation_instructions[:page] - 1)
       end
     end
   end
 end