and let’s assume the following content of Bar.php:
// Bar.phpnamespaceOtherDir;useSomeDir\Foo;// This now conflicts the class OtherDir\Foo
If both files OtherDir/Foo.php and SomeDir/Foo.php are loaded in the
same runtime, you will see a PHP error such as the following:
PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php
However, as OtherDir/Foo.php does not necessarily have to be loaded and the
error is only triggered if it is loaded before OtherDir/Bar.php, this problem
might go unnoticed for a while. In order to prevent this error from surfacing,
you must import the namespace with a different alias:
// Bar.phpnamespaceOtherDir;useSomeDir\FooasSomeDirFoo;// There is no conflict anymore.
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15
use hiqdev\hiart\ActiveRecord;
16
use hiqdev\yii2\cart\CartPositionInterface;
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use hiqdev\yii2\cart\CartPositionTrait;
18
use Serializable;
19
use Yii;
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use yii\base\InvalidConfigException;
21
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/**
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* AbstractCartPosition represents position (item) in cart.
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* Holds:
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* - calculation object
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* - purchase object
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* - price for single item
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* - value for selected quantity.
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*
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* @property Calculation $actionCalcModel
31
*/
32
abstract class AbstractCartPosition extends ActiveRecord implements CartPositionInterface, CalculableModelInterface, Serializable
33
{
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use CartPositionTrait;
35
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/**
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* @var string|array|Calculation
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* - string: the action calculation model class name
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* - array: array of options for [[Yii::createObject()]] call
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* - object: the object that extends [[Calculation]] class and represents calculation of the specified object type
41
*/
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protected $_calculationModel;
43
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/**
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* @var string|array
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* - string: the position purchase model class name
47
* - array: array of options for [[Yii::createObject()]] call
48
*/
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protected $_purchaseModel;
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/**
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* @var double the price of the 1 piece of the position
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*/
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protected $_price;
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/**
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* @var double the full value of position
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*/
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protected $_value;
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/**
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* @var string
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*/
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protected $_currency;
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/**
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* {@inheritdoc}
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*/
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public function init()
70
{
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if ($this->_purchaseModel === null) {
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throw new InvalidConfigException('Purchase model is not defined. The position can not be ordered');
73
}
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}
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/**
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* @return double
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*/
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public function getPrice()
80
{
81
return $this->_price;
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}
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/**
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* Sets the [[price]].
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*
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* The $price will be casted to double
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*
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* @param mixed $price
90
*/
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public function setPrice($price)
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{
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$this->_price = (float) $price;
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}
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/**
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* {@inheritdoc}
98
*/
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public function getCost($withDiscount = true)
100
{
101
if ($withDiscount) {
102
return $this->getValue();
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} else {
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return $this->getQuantity() * $this->getPrice();
105
}
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}
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/**
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* The method returns the `crc32b` hash of a distinct condition
hiqdev /
hipanel-module-finance
SilverFire - Dmitry Naumenko
Let’s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let’s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: