feat: enhance DataListStudentShort to filter items and add setter method for items

lab2/data_list_student_short.rb

@@ -2,7 +2,14 @@ require_relative './data_table'
 
 class DataListStudentShort < DataList
   def initialize(items)
-    super(items.select { |item| item.is_a?(StudentShort) })
+    filtered = items.select { |item| item.is_a?(StudentShort) }
+    super(filtered)
+    @items = filtered.dup
+  end
+
+  def items=(new_items)
+    filtered = new_items.select { |item| item.is_a?(StudentShort) }
+    @items = filtered.dup
   end
 
   def get_names

lab2/test_data_list_student_short.rb

@@ -9,10 +9,22 @@ students = [
 
 data_list = DataListStudentShort.new(students)
 
-puts "Столбцы: #{data_list.get_names.inspect}" 
+puts "Столбцы: #{data_list.get_names.inspect}"
 
 table = data_list.get_data
+(0...table.rows_count).each do |row|
+  puts (0...table.columns_count).map { |col| table.item(row, col) }.join(' | ')
+end
+
+new_students = [
+  StudentShort.new(id: '4', surname_initials: 'Новиков Н.Н.', phone: '+79994445566'),
+  StudentShort.new(id: '5', surname_initials: 'Кузнецов К.К.', email: 'kuznetsov@example.com')
+]
+
+data_list.items = new_students
 
+puts "\nПосле замены:"
+table = data_list.get_data
 (0...table.rows_count).each do |row|
   puts (0...table.columns_count).map { |col| table.item(row, col) }.join(' | ')
 end