尝试为每个实例创建一个二维码生成器时,出现以下错误:init()缺少1个必需的位置参数:“save”
有人能告诉我我的代码有什么问题吗?或者有没有更好的方法来生成每个型号的二维码?你知道吗
我也尝试过在方法中包含二维码生成。你知道吗
from django.db import models
import qrcode
# Create your models here.
class Attendee(models.Model):
first_name = models.CharField(max_length=30)
last_name = models.CharField(max_length=30)
present = models.BooleanField(default=False)
qr = qrcode.QRCode(
version=1,
box_size=15,
border=5
)
data = 'http://localhost:8000/attendees/confirmation/'
qr.add_data(data)
qr.make(fit=True)
img = qr.make_image(fill='black', back_color='white')
s = img.save('C:/Users/Storm/Projects/QRAttendance/attendees/static/images/QR1.png')
# save = img.save('QR_'+str(first_name)+'_'+str(last_name)+'.png')
def __init__(self, data, img, qrcode, qr, s):
self.s = s
def __str__(self):
fullname = '{0.last_name}, {0.first_name}, {0.present}'
return fullname.format(self)
当前错误为:
Traceback (most recent call last):
File "<console>", line 1, in <module>
File "C:\Users\Storm\Envs\QRAttendance\lib\site-packages\django\db\models\query.py", line 250, in __repr__
data = list(self[:REPR_OUTPUT_SIZE + 1])
File "C:\Users\Storm\Envs\QRAttendance\lib\site-packages\django\db\models\query.py", line 274, in __iter__
self._fetch_all()
File "C:\Users\Storm\Envs\QRAttendance\lib\site-packages\django\db\models\query.py", line 1242, in _fetch_all
self._result_cache = list(self._iterable_class(self))
File "C:\Users\Storm\Envs\QRAttendance\lib\site-packages\django\db\models\query.py", line 73, in __iter__
obj = model_cls.from_db(db, init_list, row[model_fields_start:model_fields_end])
File "C:\Users\Storm\Envs\QRAttendance\lib\site-packages\django\db\models\base.py", line 513, in from_db
new = cls(*values)
TypeError: __init__() missing 1 required positional argument: 's'
目前没有回答
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