介绍¶
译者的话¶
身为PythonWeb开发热爱者
希望能对开源社区做出一些贡献，尽量抽出时间，尽早完成翻译。
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本人能力有限，难免有疏漏或者表意不当的地方。 如果译文中有什么错漏的地方请大家见谅，也欢迎大家随时指正。
Django Admin Cookbook介绍¶
Django Admin Cookbook 是一本关于Django Admin 模块的书
它面向Django的对DjangoAdmin有一些使用经验但是想要扩大对DjangoAdmin的认知甚至想要精通DjangoAdmin的中级Django开发者.
它采用问答的形式来讨论关于你可能会使用DjangoAdmin完成的常见任务。
所有章节均基于一组通用模型：
App entities¶
class Category(models.Model):
name = models.CharField(max_length=100)
class Meta:
verbose_name_plural = "Categories"
def __str__(self):
return self.name
class Origin(models.Model):
name = models.CharField(max_length=100)
def __str__(self):
return self.name
class Entity(models.Model):
GENDER_MALE = "Male"
GENDER_FEMALE = "Female"
GENDER_OTHERS = "Others/Unknown"
name = models.CharField(max_length=100)
alternative_name = models.CharField(
max_length=100, null=True, blank=True
)
category = models.ForeignKey(Category, on_delete=models.CASCADE)
origin = models.ForeignKey(Origin, on_delete=models.CASCADE)
gender = models.CharField(
max_length=100,
choices=(
(GENDER_MALE, GENDER_MALE),
(GENDER_FEMALE, GENDER_FEMALE),
(GENDER_OTHERS, GENDER_OTHERS),
)
)
description = models.TextField()
def __str__(self):
return self.name
class Meta:
abstract = True
class Hero(Entity):
class Meta:
verbose_name_plural = "Heroes"
is_immortal = models.BooleanField(default=True)
benevolence_factor = models.PositiveSmallIntegerField(
help_text="How benevolent this hero is?"
)
arbitrariness_factor = models.PositiveSmallIntegerField(
help_text="How arbitrary this hero is?"
)
# relationships
father = models.ForeignKey(
"self", related_name="+", null=True, blank=True, on_delete=models.SET_NULL
)
mother = models.ForeignKey(
"self", related_name="+", null=True, blank=True, on_delete=models.SET_NULL
)
spouse = models.ForeignKey(
"self", related_name="+", null=True, blank=True, on_delete=models.SET_NULL
)
class Villain(Entity):
is_immortal = models.BooleanField(default=False)
malevolence_factor = models.PositiveSmallIntegerField(
help_text="How malevolent this villain is?"
)
power_factor = models.PositiveSmallIntegerField(
help_text="How powerful this villain is?"
)
is_unique = models.BooleanField(default=True)
count = models.PositiveSmallIntegerField(default=1)###
App events¶
name = models.CharField(max_length=255)
participating_heroes = models.ManyToManyField(Hero)
participating_villains = models.ManyToManyField(Villain)
class Event(models.Model):
epic = models.ForeignKey(Epic, on_delete=models.CASCADE)
details = models.TextField()
years_ago = models.PositiveIntegerField()
class EventHero(models.Model):
event = models.ForeignKey(Event, on_delete=models.CASCADE)
hero = models.ForeignKey(Hero, on_delete=models.CASCADE)
is_primary = models.BooleanField()
class EventVillain(models.Model):
event = models.ForeignKey(Event, on_delete=models.CASCADE)
hero = models.ForeignKey(Villain, on_delete=models.CASCADE)
is_primary = models.BooleanField()