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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| 24 | class Give_DB_Donor_Meta extends Give_DB_Meta { |
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| 25 | |||
| 26 | /** |
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| 27 | * Meta supports. |
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| 28 | * |
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| 29 | * @since 2.0 |
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| 30 | * @access protected |
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| 31 | * @var array |
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| 32 | */ |
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| 33 | protected $supports = array(); |
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| 34 | |||
| 35 | /** |
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| 36 | * Meta type |
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| 37 | * |
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| 38 | * @since 2.0 |
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| 39 | * @access public |
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| 40 | * |
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| 41 | * @var string |
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| 42 | */ |
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| 43 | public $meta_type = 'donor'; |
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| 44 | |||
| 45 | |||
| 46 | /** |
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| 47 | * Give_DB_Donor_Meta constructor. |
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| 48 | * |
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| 49 | * @access public |
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| 50 | * @since 1.6 |
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| 51 | */ |
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| 52 | public function __construct() { |
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| 53 | /* @var WPDB $wpdb */ |
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| 54 | global $wpdb; |
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| 55 | |||
| 56 | $wpdb->donormeta = $this->table_name = $wpdb->prefix . 'give_donormeta'; |
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| 57 | $this->primary_key = 'meta_id'; |
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| 58 | $this->version = '1.0'; |
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| 59 | |||
| 60 | parent::__construct(); |
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| 61 | |||
| 62 | $this->bc_200_params(); |
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| 63 | } |
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| 64 | |||
| 65 | /** |
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| 66 | * Get table columns and data types. |
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| 67 | * |
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| 68 | * @access public |
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| 69 | * @since 1.6 |
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| 70 | * |
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| 71 | * @return array Columns and formats. |
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| 72 | */ |
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| 73 | public function get_columns() { |
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| 81 | |||
| 82 | /** |
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| 83 | * Add backward compatibility for old table name |
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| 84 | * |
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| 85 | * @since 2.0 |
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| 86 | * @access private |
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| 87 | * @global wpdb $wpdb |
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| 88 | */ |
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| 89 | private function bc_200_params() { |
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| 103 | |||
| 104 | /** |
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| 105 | * Check if current id is valid |
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| 106 | * |
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| 107 | * @since 2.0 |
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| 108 | * @access protected |
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| 109 | * |
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| 110 | * @param $ID |
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| 111 | * |
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| 112 | * @return bool |
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| 113 | */ |
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| 114 | protected function is_valid_post_type( $ID ) { |
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| 117 | |||
| 118 | } |
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| 119 |