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 | <?php  | 
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| 11 | class News extends Model  | 
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| 12 | { | 
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| 13 | use DateFormat;  | 
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| 14 | |||
| 15 | protected $table = 'news';  | 
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| 16 | public $timestamps = true;  | 
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| 17 | |||
| 18 | protected $fillable = ['title', 'description', 'publish_date', 'expire_date', 'author_id', 'send_email'];  | 
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| 19 | |||
| 20 | public function attachments()  | 
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| 24 | |||
| 25 | public function author()  | 
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| 29 | |||
| 30 | /**  | 
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| 31 | * @param $query  | 
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| 32 | */  | 
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| 33 | public function scopePublishedNews($query)  | 
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| 41 | |||
| 42 | /**  | 
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| 43 | * @param string $key  | 
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| 44 | * @param mixed $value  | 
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| 45 | *  | 
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| 46 | * @return $this  | 
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| 47 | */  | 
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| 48 | View Code Duplication | public function setAttribute($key, $value)  | 
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| 56 | |||
| 57 | public function getPublishDateAttribute($value)  | 
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| 61 | |||
| 62 | public function getExpirationDateAttribute($value)  | 
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| 66 | |||
| 67 | /**  | 
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| 68 | * Email the news on the publish_date when a news article is created or updated.  | 
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| 69 | */  | 
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| 70 | public function emailNews()  | 
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| 79 | }  | 
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| 80 |