| Total Complexity | 1 | 
| Total Lines | 14 | 
| Duplicated Lines | 42.86 % | 
| Changes | 1 | ||
| Bugs | 0 | Features | 0 | 
Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
| 1 | # frozen_string_literal: true | ||
| 4 | class AssessmentInstrument < ApplicationRecord | ||
| 5 | belongs_to :assessment, inverse_of: :assessment_instruments | ||
| 6 | belongs_to :instrument, inverse_of: :assessment_instruments | ||
| 7 | |||
| 8 | validates :assessment, presence: true | ||
| 9 | validates :instrument, presence: true | ||
| 10 | |||
| 11 | validates_uniqueness_of :instrument, scope: :assessment | ||
| 12 | View Code Duplication | validates_uniqueness_of :assessment, scope: :instrument | |
|  | |||
| 13 | |||
| 14 | def to_s | ||
| 15 |     "#{assessment} #{instrument}" | ||
| 16 | end | ||
| 17 | end | ||
| 18 | |||
| 35 |