Update.php
56 lines
| 1 | <?php |
| 2 | |
| 3 | namespace AC\Plugin; |
| 4 | |
| 5 | abstract class Update { |
| 6 | |
| 7 | /** |
| 8 | * @var string |
| 9 | */ |
| 10 | protected $stored_version; |
| 11 | |
| 12 | /** |
| 13 | * @var string Assumes this regex for versions: ^[1-9]\.[0-9]\.[1-9][0-9]?$ |
| 14 | */ |
| 15 | protected $version; |
| 16 | |
| 17 | public function __construct( $stored_version ) { |
| 18 | $this->stored_version = $stored_version; |
| 19 | $this->set_version(); |
| 20 | } |
| 21 | |
| 22 | /** |
| 23 | * Check if this update needs to be applied |
| 24 | * @return bool |
| 25 | */ |
| 26 | public function needs_update() { |
| 27 | return $this->is_less_or_equal_stored_version(); |
| 28 | } |
| 29 | |
| 30 | /** |
| 31 | * @return bool |
| 32 | */ |
| 33 | protected function is_less_or_equal_stored_version() { |
| 34 | return version_compare( $this->version, $this->stored_version, '>' ); |
| 35 | } |
| 36 | |
| 37 | /** |
| 38 | * Apply this update |
| 39 | * @return void |
| 40 | */ |
| 41 | public abstract function apply_update(); |
| 42 | |
| 43 | /** |
| 44 | * @return string |
| 45 | */ |
| 46 | public function get_version() { |
| 47 | return $this->version; |
| 48 | } |
| 49 | |
| 50 | /** |
| 51 | * Set the version this update applies to |
| 52 | * @return void |
| 53 | */ |
| 54 | protected abstract function set_version(); |
| 55 | |
| 56 | } |