Merge pull request #76 from mamantoha/fix-crystal-with-map

fix Crystal with map implementation

Author: josevalim

crystal/with_map.cr

@@ -31,15 +31,15 @@ def indexing_lessons(lessons : Array)
   lessons.map_with_index(1) { |lesson, index| lesson.merge({ position: index}) }
 end
 
-selected_lessons = sections.map { |section| section[:lessons] }.flatten
+selected_lessons = sections.flat_map(&.[:lessons])
 indexed_lessons = indexing_lessons(selected_lessons)
 
-formated_section = sections.map do |section|
+formated_section = sections.map_with_index(1) do |section, i|
   formated_lessons = indexed_lessons.shift(section[:lessons].size)
   if section[:reset_lesson_position]
     formated_lessons = indexing_lessons(section[:lessons])
   end
-  section.merge(lessons: formated_lessons)
+  section.merge(position: i, lessons: formated_lessons)
 end
 
-p formated_section
+pp formated_section