147 lines
3.2 KiB
PHP
147 lines
3.2 KiB
PHP
<?php
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namespace BaoPham\DynamoDb;
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/**
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* Class RawDynamoDbQuery
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*
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* @package BaoPham\DynamoDb
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*/
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class RawDynamoDbQuery implements \IteratorAggregate, \ArrayAccess, \Countable
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{
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/**
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* 'Scan', 'Query', etc.
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*
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* @var string
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*/
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public $op;
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/**
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* The query body being sent to AWS
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*
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* @var array
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*/
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public $query;
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public function __construct($op, $query)
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{
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$this->op = $op;
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$this->query = $query;
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}
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/**
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* Perform any final clean up.
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* Remove any empty values to avoid errors.
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*
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* @return $this
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*/
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public function finalize()
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{
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$this->query = array_filter($this->query, function ($value) {
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return !empty($value) || is_bool($value) || is_numeric($value);
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});
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return $this;
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}
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/**
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* Whether a offset exists
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* @link http://php.net/manual/en/arrayaccess.offsetexists.php
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* @param mixed $offset <p>
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* An offset to check for.
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* </p>
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* @return boolean true on success or false on failure.
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* </p>
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* <p>
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* The return value will be casted to boolean if non-boolean was returned.
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* @since 5.0.0
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*/
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public function offsetExists($offset)
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{
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return isset($this->internal()[$offset]);
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}
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/**
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* Offset to retrieve
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* @link http://php.net/manual/en/arrayaccess.offsetget.php
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* @param mixed $offset <p>
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* The offset to retrieve.
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* </p>
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* @return mixed Can return all value types.
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* @since 5.0.0
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*/
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public function offsetGet($offset)
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{
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return $this->internal()[$offset];
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}
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/**
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* Offset to set
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* @link http://php.net/manual/en/arrayaccess.offsetset.php
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* @param mixed $offset <p>
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* The offset to assign the value to.
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* </p>
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* @param mixed $value <p>
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* The value to set.
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* </p>
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* @return void
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* @since 5.0.0
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*/
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public function offsetSet($offset, $value)
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{
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$this->internal()[$offset] = $value;
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}
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/**
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* Offset to unset
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* @link http://php.net/manual/en/arrayaccess.offsetunset.php
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* @param mixed $offset <p>
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* The offset to unset.
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* </p>
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* @return void
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* @since 5.0.0
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*/
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public function offsetUnset($offset)
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{
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unset($this->internal()[$offset]);
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}
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/**
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* Retrieve an external iterator
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* @link http://php.net/manual/en/iteratoraggregate.getiterator.php
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* @return \Traversable An instance of an object implementing <b>Iterator</b> or
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* <b>Traversable</b>
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* @since 5.0.0
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*/
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public function getIterator()
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{
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return new \ArrayObject($this->internal());
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}
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/**
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* Count elements of an object
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* @link http://php.net/manual/en/countable.count.php
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* @return int The custom count as an integer.
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* </p>
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* <p>
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* The return value is cast to an integer.
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* @since 5.1.0
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*/
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public function count()
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{
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return count($this->internal());
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}
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/**
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* For backward compatibility, previously we use array to represent the raw query
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*
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* @var array
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*
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* @return array
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*/
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private function internal()
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{
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return [$this->op, $this->query];
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}
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}
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