class Meta 中的“Verbose_name”和“Ordering”是什么？ 请在 django 中解释一下 Meta Class

Question

''' from django.db import models import uuid class Book(models.Model): name=models.CharField(max_length=100) isbn=models.UUIDField(default=uuid.uuid4, primary_key=True) writer=models.CharField(max_length=100)

    class Meta:
        ordering=['name']
        ordering='User MetaData'''

Answer 1

With class Meta you can give to your model metata such as database table name or ordering options. You can check it out in documentation

By using "verbose_name" in class Meta you can specify human-readable name for singular object. Documentation

By using 'ordering' in class Meta you can specify in which order you will get list of objects. By ['-field_name'] you specify descending order. By ['field_name'] you specify ascending order. You can make ordering by several fields: ordering = ['field1', 'field2']. Documentation

Answer 2

1.Model Meta is basically used to change the behavior of your model fields like changing order options,verbose_name and lot of other options. It's completely optional to add Meta class in your model.

2.Verbose_name is a human-readable name for the field.

3.Ordering takes a list of string values, which are model fields. It's used to define the ordering of objects of a model. When the objects of this model are retrieved, they will be present in this ordering.