为什么 Django 向遗留数据库的 table 名称添加一个额外的字符？

Question

我正在关注 this_site 以加入遗留数据库。尽管如此，无论使用何种方法，Django 都会向遗留 sqlite 数据库（table：Dogs）中唯一的 table 添加一个额外的字符（s）。

下面是额外字符的屏幕截图：

下面还有我的全部models.py。

通过 python 的 sqlite 库访问数据库我可以查询 table 'dogs' 并获得预期结果，而查询 'dogss' 会产生错误 "no such table: dogss".

from django.db import models
from datetime import datetime

# Create your models here.

class Tutorial(models.Model):
    tutorial_title = models.CharField(max_length=200)
    tutorial_content = models.TextField()
    tutorial_published = models.DateTimeField('date published', default=datetime.now())

    def __str__(self):
        return self.tutorial_title

class Dogs(models.Model):
    #id = models.AutoField(primary_key=True)
    date_of_death = models.TextField(db_column='Date of Death', blank=True, null=True)  # Field name made lowercase. Field renamed to remove unsuitable characters.
    land_of_birth = models.TextField(db_column='Land of Birth', blank=True, null=True)  # Field name made lowercase. Field renamed to remove unsuitable characters.
    registered_name = models.TextField(db_column='Registered Name', blank=True, null=True)  # Field name made lowercase. Field renamed to remove unsuitable characters.
    call_name = models.TextField(db_column='Call Name', blank=True, null=True)  # Field name made lowercase. Field renamed to remove unsuitable characters.
    breeder_name = models.TextField(db_column='Breeder_name', blank=True, null=True)  # Field name made lowercase.
    registration_field = models.TextField(db_column='Registration#', blank=True, null=True)  # Field name made lowercase. Field renamed to remove unsuitable characters. Field renamed because it ended with '_'.
    land_of_standing = models.TextField(db_column='Land of Standing', blank=True, null=True)  # Field name made lowercase. Field renamed to remove unsuitable characters.
    dam = models.TextField(db_column='Dam', blank=True, null=True)  # Field name made lowercase.
    known_offspring = models.TextField(db_column='Known Offspring', blank=True, null=True)  # Field name made lowercase. Field renamed to remove unsuitable characters.
    colour = models.TextField(db_column='Colour', blank=True, null=True)  # Field name made lowercase.
    breeder = models.TextField(db_column='Breeder', blank=True, null=True)  # Field name made lowercase.
    kennel = models.TextField(db_column='Kennel', blank=True, null=True)  # Field name made lowercase.
    owner_name = models.TextField(db_column='Owner_name', blank=True, null=True)  # Field name made lowercase.
    weight = models.TextField(db_column='Weight', blank=True, null=True)  # Field name made lowercase.
    sire = models.TextField(db_column='Sire', blank=True, null=True)  # Field name made lowercase.
    did = models.IntegerField(blank=True, null=True)
    sex = models.TextField(db_column='Sex', blank=True, null=True)  # Field name made lowercase.
    titles = models.TextField(db_column='Titles', blank=True, null=True)  # Field name made lowercase.
    date_of_birth = models.DateTimeField(db_column='Date of Birth', blank=True, null=True)  # Field name made lowercase. Field renamed to remove unsuitable characters.
    owner = models.TextField(db_column='Owner', blank=True, null=True)  # Field name made lowercase.
    distinguishing_features = models.TextField(db_column='Distinguishing Features', blank=True, null=True)  # Field name made lowercase. Field renamed to remove unsuitable characters.
    size = models.TextField(db_column='Size', blank=True, null=True)  # Field name made lowercase.

    def __str__(self):
        return self.registered_name

    class Meta:
        managed = False
        db_table = 'dogs'
        app_label = 'dogs'

Answer 1

这是 Django 中的默认显示，无需指定 verbose_name_plural，您可以在此处获得文档 https://docs.djangoproject.com/en/3.0/ref/models/options/

用单数名称命名 table 是标准做法，因此默认情况下 Django 添加 s 来显示 table 中存在的项目列表。以下是有关此主题的讨论：Table Naming Dilemma: Singular vs. Plural Names

（在 Tutorial table 的情况下，您可能还显示了 tutorials）

为什么 Django 向遗留数据库的 table 名称添加一个额外的字符？

Why is Django adding an extra character to the table name of a legacy database?

django

python-3.8