Class: TabStudentsController

Inherits:
Object
  • Object
show all
Defined in:
lib/source/controllers/tab_students_controller.rb

Instance Method Summary collapse

Constructor Details

#initialize(view, student_per_page) ⇒ TabStudentsController

Returns a new instance of TabStudentsController.



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# File 'lib/source/controllers/tab_students_controller.rb', line 13

def initialize(view, student_per_page)
  @view = view
  @data_list = DataListStudentShort.new(list: [])
  @student_per_page = student_per_page
  @current_page = 1
end

Instance Method Details

#delete_selected(selected_row) ⇒ Object 



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# File 'lib/source/controllers/tab_students_controller.rb', line 40

def delete_selected(selected_row)
  begin
    student_num = (@current_page - 1) * @student_per_page + selected_row
    student_id = @data_list.get_id_by_index(student_num)
    StudentsListDB.remove_student(student_id)
  rescue
    on_db_conn_error
  end
end

#get_page ⇒ Object 



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# File 'lib/source/controllers/tab_students_controller.rb', line 56

def get_page
  @current_page
end

#next_page(is_left) ⇒ Object 



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# File 'lib/source/controllers/tab_students_controller.rb', line 60

def next_page(is_left)
  if is_left
    @current_page = [@current_page - 1, 1].max
  else
    @current_page = [@current_page + 1, (@total_count / STUDENTS_PER_PAGE.to_f).ceil].min
  end
  @controller.refresh_data(@current_page)
end

#refresh_data ⇒ Object 



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# File 'lib/source/controllers/tab_students_controller.rb', line 51

def refresh_data
  StudentsListDB.get_students_slice(@current_page, @student_per_page, @data_list)
  EventManager.notify(EventUpdateStudentsCount.new(StudentsListDB.count))
end

#show_modal_add ⇒ Object 



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# File 'lib/source/controllers/tab_students_controller.rb', line 24

def show_modal_add
  controller = StudentInputFormControllerCreate.new(self)
  view = StudentInputForm.new(controller,self)
  controller.set_view(view)
  view.create.show
end

#show_modal_edit(selected_row) ⇒ Object 



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# File 'lib/source/controllers/tab_students_controller.rb', line 31

def show_modal_edit(selected_row)
  student_num = (@current_page - 1) * @student_per_page + selected_row
  student_id = @data_list.get_id_by_index(student_num)
  controller = StudentInputFormControllerEdit.new(self, student_id)
  view = StudentInputForm.new(controller, self)
  controller.set_view(view)
  view.create.show
end

#show_view ⇒ Object 



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# File 'lib/source/controllers/tab_students_controller.rb', line 20

def show_view
  @view.create.show
end