feat: implement DataListStudentShort class for student data representation

lab2/data_list_student_short.rb

@@ -0,0 +1,21 @@
+require_relative 'data_table'
+
+class DataListStudentShort < DataList
+  def get_names
+    ['№', 'Фамилия и инициалы', 'Телефон', 'Telegram', 'Email']
+  end
+
+  def get_data
+    data = @items.each_with_index.map do |student, index|
+      [
+        index + 1,                          # id
+        student.surname_initials,           # Фамилия и инициалы
+        student.phone || '-',               # Телефон (или прочерк)
+        student.telegram || '-',            # Telegram (или прочерк)
+        student.email || '-'                # Email (или прочерк)
+      ]
+    end
+
+    DataTable.new(data)
+  end
+end

lab2/test_data_list_student_short.rb

@@ -0,0 +1,18 @@
+require_relative 'student_short'
+require_relative 'data_list_student_short'
+
+students = [
+  StudentShort.new(id: '1', surname_initials: 'Иванов И.И.', phone: '+79991112233'),
+  StudentShort.new(id: '2', surname_initials: 'Петров П.П.', telegram: '@petrov'),
+  StudentShort.new(id: '3', surname_initials: 'Сидоров С.С.', email: 'sidorov@mail.ru')
+]
+
+data_list = DataListStudentShort.new(students)
+
+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