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Use bcmath to calculate correct prices.

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Jan Böhmer 2019-09-01 13:56:14 +02:00
parent 43c439bc9e
commit 4391be448d
9 changed files with 82 additions and 98 deletions
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31
src/Entity/PriceInformations/Pricedetail.php
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@ -79,6 +79,8 @@ use Symfony\Component\Validator\Constraints as Assert;
class Pricedetail extends DBElement
{
public const PRICE_PRECISION = 5;
use TimestampTrait;
/**
@ -125,6 +127,10 @@ class Pricedetail extends DBElement
*/
protected $manual_input = true;
public function __construct()
{
bcscale(static::PRICE_PRECISION);
}
/********************************************************************************
*
@ -162,21 +168,34 @@ class Pricedetail extends DBElement
return $this->price;
}
/**
* Returns the price associated with this pricedetail as integer.
* It is given in current currency and for the price related quantity, in parts of 0.00001 (5 digits)
* @return int
*/
public function getPriceInt() : int
{
return (int) str_replace('.', '', $this->price);
}
/**
* Get the price for a single unit in the currency associated with this price detail.
*
* @param int $multiplier The returned price (float or string) will be multiplied
* @param float $multiplier The returned price (float or string) will be multiplied
* with this multiplier.
*
* You will get the price for $multiplier parts. If you want the price which is stored
* in the database, you have to pass the "price_related_quantity" count as $multiplier.
*
* @return float the price as a float number
* @return string the price as a bcmath string
*/
public function getPricePerUnit(int $multiplier = 1) : float
public function getPricePerUnit($multiplier = 1) : string
{
return ($this->price * $multiplier) / $this->price_related_quantity;
$multiplier = (string) $multiplier;
$tmp = bcmul($this->price, $multiplier, static::PRICE_PRECISION);
return bcdiv($tmp, (string) $this->price_related_quantity, static::PRICE_PRECISION);
//return ($this->price * $multiplier) / $this->price_related_quantity;
}
/**
@ -266,7 +285,7 @@ class Pricedetail extends DBElement
/**
* Set the price.
*
* @param float $new_price the new price as a float number
* @param string $new_price the new price as a float number
*
* * This is the price for "price_related_quantity" parts!!
* * Example: if "price_related_quantity" is '10',
@ -274,7 +293,7 @@ class Pricedetail extends DBElement
*
* @return self
*/
public function setPrice(float $new_price): Pricedetail
public function setPrice(string $new_price): Pricedetail
{
//Assert::natural($new_price, 'The new price must be positive! Got %s!');