| 1 | <?php |
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| 13 | trait ServiceTrait |
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| 14 | { |
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| 15 | /** |
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| 16 | * @param array $data |
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| 17 | * @return Token |
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| 18 | */ |
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| 19 | public function issueToken(array $data) |
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| 20 | { |
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| 21 | $token = new Token($this, $data); |
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| 22 | $this->writeToken($token); |
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| 23 | |||
| 24 | return $token; |
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| 25 | } |
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| 26 | |||
| 27 | public function checkToken($token, array $data) |
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| 28 | { |
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| 29 | $token = $this->findToken($token); |
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| 30 | if (!$token) { |
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| 31 | return false; |
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| 32 | } |
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| 33 | |||
| 34 | return $token->check($data); |
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| 35 | } |
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| 36 | |||
| 37 | public function findToken($token) |
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| 38 | { |
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| 39 | if ($token instanceof Token) { |
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| 40 | return $token; |
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| 41 | } |
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| 42 | |||
| 43 | $data = $this->readToken($token); |
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| 44 | |||
| 45 | return empty($data) ? null : new Token($this, $data, $token); |
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| 46 | } |
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| 47 | |||
| 48 | public function removeToken($token) |
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| 52 | |||
| 53 | protected function readToken($string) |
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| 54 | { |
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| 55 | return $this->getStorage()->has($string) ? json_decode($this->getStorage()->get($string), true) : null; |
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| 57 | |||
| 58 | protected function writeToken(Token $token) |
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| 62 | } |
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| 63 |
This check looks for methods that are used by a trait but not required by it.
To illustrate, let’s look at the following code example
The trait
Idableprovides a methodequalsIdthat in turn relies on the methodgetId(). If this method does not exist on a class mixing in this trait, the method will fail.Adding the
getId()as an abstract method to the trait will make sure it is available.