我可以在“选择”中选择一些选项（django型号）？
ID喜欢在页面上制作音乐流派的领域，并且上传音乐用户可以选择哪种音乐音乐，但音乐不仅具有1个单一类型，例如流行音乐，说唱或金属和摇滚。 那么，无论如何是否可以选择多个选择？
from django.db import models
class Mdata(models.Model):
name = models.CharField(max_length=100)
artist = models.CharField(max_length=150)
album = models.CharField(max_length=100)
nation = models.CharField(max_length=100)
duration = models.DecimalField(max_digits=4,decimal_places=2)
released_in = models.DecimalField(max_digits=4,decimal_places=0)
uploaded_at = models.DateTimeField(auto_now_add=True)
genre = models.TextField()
image = models.ImageField(upload_to='images/',blank=True)
audio = models.FileField(upload_to='audios/')
def __str__(self):
return self.name.title()+" by "+self.artist.title()
另外，我读了一个用于音乐页面的模型文件，发现作家使用了2种型号：1个音频轨道，另一个用于图像文件，它比将所有这些都放在1类中更好吗？ 我该如何与两种型号合并形式？
id like to make a field for music genres in page and while uploading music users can select what genre music is but a music doesnt have only 1 single genre like pop and rap or metal and rock.
so is there anyway to choose more than one choice?
from django.db import models
class Mdata(models.Model):
name = models.CharField(max_length=100)
artist = models.CharField(max_length=150)
album = models.CharField(max_length=100)
nation = models.CharField(max_length=100)
duration = models.DecimalField(max_digits=4,decimal_places=2)
released_in = models.DecimalField(max_digits=4,decimal_places=0)
uploaded_at = models.DateTimeField(auto_now_add=True)
genre = models.TextField()
image = models.ImageField(upload_to='images/',blank=True)
audio = models.FileField(upload_to='audios/')
def __str__(self):
return self.name.title()+" by "+self.artist.title()
also i read a model file for music page and found out writer had used 2 models :1 for audio track and another one for image file ,is it better than making all of them in 1 class ?
and how can i make a form combined with 2 models?
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我记得通过创建列表和使用内置选择参数来选择下拉值，我记得在我的应用程序上做类似的操作。
I remember doing something similarly on my app to pick dropdown values by creating a list and using the built in choices parameter.