Class: StudentListController

Inherits:
Object
  • Object
show all
Defined in:
lib/student_list_controller.rb

Instance Method Summary collapse

Constructor Details

#initialize(view) ⇒ StudentListController

Returns a new instance of StudentListController.



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# File 'lib/student_list_controller.rb', line 14

def initialize(view)
  @view = view
  @data_list = DataListStudentShort.new
  @data_list.add_listener(@view)
end

Instance Method Details

#add_student(student) ⇒ Object 



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# File 'lib/student_list_controller.rb', line 28

def add_student(student)
  @student_list.add_student(student)
end

#count ⇒ Object 



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# File 'lib/student_list_controller.rb', line 48

def count
  @student_list.count
end

#delete_selected(current_page, per_page, selected_row) ⇒ Object 



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# File 'lib/student_list_controller.rb', line 52

def delete_selected(current_page, per_page, selected_row)
  begin
    student_num = (current_page - 1) * per_page + selected_row
    @data_list.select_element(student_num)
    student_id = @data_list.selected_id
    @student_list.remove_student(student_id)
  rescue
    on_db_conn_error
  end
end

#get_student(id) ⇒ Object 



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# File 'lib/student_list_controller.rb', line 32

def get_student(id)
  @student_list.get_student(id)
end

#get_students_pag(k, n) ⇒ Object 



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# File 'lib/student_list_controller.rb', line 44

def get_students_pag(k, n)
  students_list_adapter.get_students_pag(k, n)
end

#on_view_created ⇒ Object 



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# File 'lib/student_list_controller.rb', line 20

def on_view_created
  begin
    @student_list = StudentListAdv.new(StudentsListDBAdapter.new(StudentListDB.instance))
  rescue Mysql2::Error::ConnectionError
    on_db_conn_error
  end
end

#refresh_data(page, per_page) ⇒ Object 



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# File 'lib/student_list_controller.rb', line 80

def refresh_data(page, per_page)
  begin
    @data_list = @student_list.get_students_pag(page, per_page, @data_list)
    @view.update_student_count(@student_list.count)
  rescue
    on_db_conn_error
  end
end

#remove_student(id) ⇒ Object 



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# File 'lib/student_list_controller.rb', line 36

def remove_student(id)
  @student_list.remove_student(id)
end

#replace_student(id, student) ⇒ Object 



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# File 'lib/student_list_controller.rb', line 40

def replace_student(id, student)
  @student_list.replace_student(id, student)
end

#show_modal_add ⇒ Object 



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# File 'lib/student_list_controller.rb', line 63

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

#show_modal_edit(current_page, per_page, selected_row) ⇒ Object 



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# File 'lib/student_list_controller.rb', line 70

def show_modal_edit(current_page, per_page, selected_row)
  student_num = (current_page - 1) * per_page + selected_row
  @data_list.select_element(student_num)
  student_id = @data_list.selected_id
  controller = StudentEditFormController.new(self, student_id)
  view = StudentInputForm.new(controller)
  controller.set_view(view)
  view.create.show
end