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<?php |
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/** |
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* @author Anton Tuyakhov <[email protected]> |
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*/ |
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namespace tuyakhov\jsonapi; |
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use yii\helpers\ArrayHelper; |
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use \yii\web\JsonParser; |
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class JsonApiParser extends JsonParser |
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{ |
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/** |
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* Converts 'type' member to form name |
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* If not set, type will be converted to singular form. |
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* For example, 'articles' will be converted to 'Article' |
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* @var callable |
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*/ |
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public $formNameCallback = ['tuyakhov\jsonapi\Inflector', 'type2form']; |
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/** |
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* Converts member names to variable names |
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* If not set, all special characters will be replaced by underscore |
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* For example, 'first-name' will be converted to 'first_name' |
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* @var callable |
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*/ |
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public $memberNameCallback = ['tuyakhov\jsonapi\Inflector', 'member2var']; |
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/** |
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* Parse resource object into the input data to populates the model |
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* @inheritdoc |
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*/ |
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public function parse($rawBody, $contentType) |
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{ |
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$array = parent::parse($rawBody, $contentType); |
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if ($type = ArrayHelper::getValue($array, 'data.type')) { |
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$formName = $this->typeToFormName($type); |
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if ($attributes = ArrayHelper::getValue($array, 'data.attributes')) { |
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$result[$formName] = array_combine($this->parseMemberNames(array_keys($attributes)), array_values($attributes)); |
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} elseif ($id = ArrayHelper::getValue($array, 'data.id')) { |
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$result[$formName] = ['id' => $id, 'type' => $type]; |
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} |
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if ($relationships = ArrayHelper::getValue($array, 'data.relationships')) { |
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foreach ($relationships as $name => $relationship) { |
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if (isset($relationship[0])) { |
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View Code Duplication |
foreach ($relationship as $item) { |
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if (isset($item['type']) && isset($item['id'])) { |
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$formName = $this->typeToFormName($item['type']); |
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$result[$name][$formName][] = $item; |
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} |
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} |
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} elseif (isset($relationship['type']) && isset($relationship['id'])) { |
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$formName = $this->typeToFormName($relationship['type']); |
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$result[$name][$formName] = $relationship; |
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} |
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} |
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} |
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} else { |
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$data = ArrayHelper::getValue($array, 'data', []); |
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View Code Duplication |
foreach ($data as $relationLink) { |
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if (isset($relationLink['type']) && isset($relationLink['id'])) { |
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$formName = $this->typeToFormName($relationLink['type']); |
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$result[$formName][] = $relationLink; |
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} |
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} |
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} |
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return isset($result) ? $result : $array; |
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} |
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/** |
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* @param $type 'type' member of the document |
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* @return string form name |
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*/ |
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protected function typeToFormName($type) |
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{ |
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return call_user_func($this->formNameCallback, $type); |
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} |
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/** |
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* @param array $memberNames |
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* @return array variable names |
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*/ |
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protected function parseMemberNames(array $memberNames = []) |
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{ |
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return array_map($this->memberNameCallback, $memberNames); |
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} |
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} |
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Adding an explicit array definition is generally preferable to implicit array definition as it guarantees a stable state of the code.
Let’s take a look at an example:
As you can see in this example, the array
$myArray
is initialized the first time when the foreach loop is entered. You can also see that the value of thebar
key is only written conditionally; thus, its value might result from a previous iteration.This might or might not be intended. To make your intention clear, your code more readible and to avoid accidental bugs, we recommend to add an explicit initialization $myArray = array() either outside or inside the foreach loop.