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<?php |
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namespace Fathomminds\Rest\Database\MongoDB; |
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use Fathomminds\Rest\Exceptions\RestException; |
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use Fathomminds\Rest\Database\Finder as BaseFinder; |
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use MongoDB\Client; |
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class Finder extends BaseFinder |
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{ |
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private $filter; |
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private $options; |
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private $operatorMap = [ |
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'AND' => '$and', |
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'&&' => '$and', |
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'OR' => '$or', |
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'||' => '$or', |
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'==' => '$eq', |
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'!=' => '$ne', |
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'<' => '$lt', |
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'>' => '$gt', |
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'<=' => '$lte', |
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'>=' => '$gte', |
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]; |
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public function __construct($client) |
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{ |
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parent::__construct($client); |
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$this->options = new FinderOptions; |
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} |
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protected function setLimit() |
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{ |
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$this->options->limit = $this->queryConfiguration->limit; |
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} |
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protected function setOffset() |
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{ |
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$this->options->skip = $this->queryConfiguration->offset; |
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} |
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protected function setOrderBy() |
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{ |
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foreach ($this->queryConfiguration->orderBy as $orderBy) { |
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$mongoSort = 1; |
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switch (strtoupper(current($orderBy))) { |
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case 'ASC': |
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$mongoSort = 1; |
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break; |
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case 'DESC': |
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$mongoSort = -1; |
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break; |
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default: |
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continue; |
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} |
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$this->options->sort[key($orderBy)] = $mongoSort; |
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} |
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} |
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protected function setSelect() |
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{ |
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if ($this->queryConfiguration->select !== '*' && is_array($this->queryConfiguration->select)) { |
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/** @noinspection PhpWrongForeachArgumentTypeInspection */ |
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foreach ($this->queryConfiguration->select as $include) { |
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$this->options->projection[$include] = 1; |
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} |
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} |
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} |
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protected function setWhere() |
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{ |
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if (!empty($this->queryConfiguration->where)) { |
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$this->filter = $this->parseWhere($this->queryConfiguration->where, $this->mainLogical); |
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return; |
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} |
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$this->filter = []; |
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} |
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protected function parseWhere($conditions, $logical) |
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{ |
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$subGroup = []; |
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foreach ($conditions as $key => $condition) { |
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switch (strtoupper($key)) { |
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case 'AND': |
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$subGroup[] = $this->parseWhere($condition, 'AND'); |
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break; |
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case 'OR': |
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$subGroup[] = $this->parseWhere($condition, 'OR'); |
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break; |
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default: |
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list($fieldName, $operator, $value) = $condition; |
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$subGroup[] = [$fieldName => [$this->mapOperator($operator) => $value]]; |
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} |
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} |
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$currentGroup[$this->mapOperator($logical)] = $subGroup; |
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return $currentGroup; |
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} |
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protected function parseWhereGroup($condition, $logical) { |
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} |
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protected function mapOperator($in) |
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{ |
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if (!array_key_exists($in, $this->operatorMap)) { |
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throw new RestException( |
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'Invalid operator', |
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[$in] |
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); |
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} |
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return $this->operatorMap[$in]; |
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} |
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protected function configQuery() |
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{ |
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$this->setLimit(); |
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$this->setOffset(); |
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$this->setOrderBy(); |
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$this->setSelect(); |
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$this->setWhere(); |
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} |
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public function get() |
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{ |
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if (!($this->client instanceof Client)) { |
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throw new RestException( |
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'MongoDB Finder can be used with MongoDB Client only', |
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['type' => get_class($this->client)] |
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); |
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} |
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$collection = $this->client |
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->selectDatabase($this->queryConfiguration->databaseName) |
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->selectCollection($this->queryConfiguration->from); |
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$this->configQuery(); |
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$items = json_decode( |
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json_encode( |
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$collection->find( |
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$this->filter, |
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json_decode(json_encode($this->options), true) |
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)->toArray() |
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) |
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); |
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if (empty($items)) { |
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$this->resultSet = []; |
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return $this; |
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} |
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$this->resultSet = $items; |
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return $this; |
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} |
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149
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protected function createClient() |
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{ |
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$this->client = new Client(Database::getUri(), Database::getUriOptions(), Database::getDriverOptions()); |
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return $this; |
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} |
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} |
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fathomminds /
php-rest-models
Loading history...
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
$myArrayis initialized the first time when the foreach loop is entered. You can also see that the value of thebarkey 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.