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<?php |
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namespace EloquentJs\ScriptGenerator\Model; |
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use Illuminate\Contracts\Config\Repository; |
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use Illuminate\Database\Eloquent\Model; |
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class Inspector |
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{ |
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/** |
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* @var array |
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*/ |
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protected $excludeScopes = ['scopeScope', 'scopeEloquentJs']; |
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/** |
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* @var Repository |
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*/ |
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protected $config; |
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/** |
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* Create a new Inspector instance. |
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* |
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* @param Repository $config |
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*/ |
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public function __construct(Repository $config) |
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{ |
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$this->config = $config; |
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} |
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/** |
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* Inspect a model class and return its metadata. |
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* |
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* @param Model $instance |
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* @return Metadata |
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*/ |
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public function inspect(Model $instance) |
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{ |
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return new Metadata( |
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class_basename($instance), |
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$this->findEndpoint($instance), |
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$this->findDateColumns($instance), |
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$this->findScopeMethods($instance), |
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$this->findRelations($instance) |
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); |
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} |
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/** |
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* Find the endpoint for this model. |
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* |
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* @param Model $instance |
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* @return string|null |
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*/ |
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protected function findEndpoint(Model $instance) |
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{ |
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if ($instance->getEndpoint()) { |
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return $instance->getEndpoint(); |
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} |
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return $this->readModelConfig($instance, 'endpoint'); |
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} |
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/** |
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* Get any additional date columns for this model. |
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* |
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* @param Model $instance |
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* @return array |
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*/ |
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protected function findDateColumns(Model $instance) |
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{ |
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return array_values( |
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array_diff($instance->getDates(), ['created_at', 'updated_at', 'deleted_at']) |
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); |
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} |
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/** |
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* Get the scope methods for this model with 'scope' prefix removed. |
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* |
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* @param Model $instance |
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* @return array |
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*/ |
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protected function findScopeMethods(Model $instance) |
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{ |
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return array_map( |
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function($method) { |
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return lcfirst(substr($method, 5)); |
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}, |
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array_values( |
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array_filter( |
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get_class_methods($instance), |
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function($method) { |
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return substr($method, 0, 5) === 'scope' and ! in_array($method, $this->excludeScopes); |
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} |
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) |
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) |
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); |
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} |
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/** |
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* Get a map of relation method names and their related models. |
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* |
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* For example, if the given model has a "comments" method that |
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* describes the relation to a Comment model, this returns |
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* ['comments' => 'Comment'] |
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* |
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* @param Model $instance |
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* @return array |
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*/ |
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protected function findRelations(Model $instance) |
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{ |
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$relations = $this->readModelConfig($instance, 'relations', []); |
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return array_map(function ($relation) { return class_basename($relation); }, $relations); |
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} |
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/** |
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* Read from a model config value from the eloquentjs.php config file. |
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* |
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* @param Model $instance |
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* @param string $key |
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* @param mixed $default |
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* @return mixed |
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*/ |
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protected function readModelConfig(Model $instance, $key, $default = null) |
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{ |
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$className = get_class($instance); |
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return $this->config->get("eloquentjs.generator.{$className}.{$key}", $default); |
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} |
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} |
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parsnick /
eloquentjs
PHP has two types of connecting operators (logical operators, and boolean operators):
and&&or||The difference between these is the order in which they are executed. In most cases, you would want to use a boolean operator like
&&, or||.Let’s take a look at a few examples:
Logical Operators are used for Control-Flow
One case where you explicitly want to use logical operators is for control-flow such as this:
Since
dieintroduces problems of its own, f.e. it makes our code hardly testable, and prevents any kind of more sophisticated error handling; you probably do not want to use this in real-world code. Unfortunately, logical operators cannot be combined withthrowat this point:These limitations lead to logical operators rarely being of use in current PHP code.