|  | @@ -12,7 +12,6 @@ import (
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				|  |  |  	"image"
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				|  |  |  	"image/png"
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				|  |  |  	"io/ioutil"
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				|  |  | -	"log"
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				|  |  |  	"math/rand"
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				|  |  |  	"net/http"
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				|  |  |  	"os"
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				|  | @@ -53,7 +52,7 @@ func updateCartridges(w http.ResponseWriter, r *http.Request){
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				|  |  |  	selectedCartridge := strings.Join(r.Form["cartridges"], "")
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				|  |  |  	var cartridge Cartridges
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				|  |  |  	db.Where("Name = ?", selectedCartridge).First(&cartridge)
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				|  |  | -	newQuantity := cartridge.Quantity + strconv.Atoi(r.Form["cartridgeQuantity"])
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				|  |  | +	newQuantity := cartridge.Quantity + strconv.Atoi(strings.Join(r.Form["cartridgeQuantity"], "")])
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				|  |  |  	db.Model(&cartridge).Update("Quantity", newQuantity)
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				|  |  |  }
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				|  |  |  
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				|  | @@ -331,7 +330,7 @@ func cartridgeQR(text string, filename string) {
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				|  |  |  		fmt.Println("Something went wrong...")
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				|  |  |  	}
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				|  |  |  	if text != code.Content() {
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				|  |  | -		log.Fatal("data differs")
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				|  |  | +		panic("data differs")
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				|  |  |  	}
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				|  |  |  	code, err = barcode.Scale(code, 512, 512)
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				|  |  |  	if err != nil {
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