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<?php |
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/* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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if (class_exists('MongoTimestamp', false)) { |
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return; |
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} |
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use Alcaeus\MongoDbAdapter\TypeInterface; |
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use MongoDB\BSON\Timestamp; |
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class MongoTimestamp implements TypeInterface |
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{ |
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/** |
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* @var int |
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*/ |
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private static $globalInc = 0; |
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/** |
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* @link http://php.net/manual/en/class.mongotimestamp.php#mongotimestamp.props.sec |
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* @var int |
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*/ |
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public $sec; |
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/** |
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* @link http://php.net/manual/en/class.mongotimestamp.php#mongotimestamp.props.inc |
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* @var int |
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*/ |
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public $inc; |
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/** |
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* Creates a new timestamp. If no parameters are given, the current time is used |
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* and the increment is automatically provided. The increment is set to 0 when the |
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* module is loaded and is incremented every time this constructor is called |
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* (without the $inc parameter passed in). |
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* |
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* @link http://php.net/manual/en/mongotimestamp.construct.php |
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* @param int $sec [optional] Number of seconds since January 1st, 1970 |
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* @param int $inc [optional] Increment |
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*/ |
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public function __construct($sec = 0, $inc = 0) |
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{ |
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if ($sec instanceof Timestamp) { |
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// Only way is to convert is from string: [<inc>:<sec>] |
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$parts = explode(':', substr((string) $sec, 1, -1)); |
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$this->sec = (int) $parts[1]; |
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$this->inc = (int) $parts[0]; |
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return; |
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} |
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if (func_num_args() == 0) { |
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$sec = time(); |
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} |
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if (func_num_args() <= 1) { |
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$inc = static::$globalInc; |
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static::$globalInc++; |
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} |
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$this->sec = (int) $sec; |
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$this->inc = (int) $inc; |
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} |
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/** |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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return (string) $this->sec; |
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} |
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/** |
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* Converts this MongoTimestamp to the new BSON Timestamp type |
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* |
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* @return Timestamp |
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* @internal This method is not part of the ext-mongo API |
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*/ |
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public function toBSONType() |
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{ |
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return new Timestamp($this->inc, $this->sec); |
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} |
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} |
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Let’s assume you have a class which uses late-static binding:
The code above will run fine in your PHP runtime. However, if you now create a sub-class and call the
getSomeVariable()on that sub-class, you will receive a runtime error:In the case above, it makes sense to update
SomeClassto useselfinstead: