django test 草稿

 model

Foreignkey

反向操作

g2=Grade.objects.filter(id=2).first()
g2.student_set.create(sname='s3',gender=False)

Admin管理后台

后台注册由grade添加student （不实用，条目多时比较乱）

from django.contrib import admin

# Register your models here.

from .models import  Grade,Student


class StudentInfo(admin.TabularInline):
    model = Student
    extra = 2


class GradeAdmin(admin.ModelAdmin):
    inlines = [StudentInfo]
    list_display = ['gname','ginfo']

class StudentAdmin(admin.ModelAdmin):
    list_display = ['sname','gender']

admin.site.register(Grade,GradeAdmin)
admin.site.register(Student,StudentAdmin)

函数处理布尔值，将gender显示对应中文

原admin

class StudentAdmin(admin.ModelAdmin):
    list_display = ['sname','gender']

改为 

class StudentAdmin(admin.ModelAdmin):
    def gendershow(self):
        if self.gender:
            return "男"
        else:
            return "女"
    list_display = ['sname',gendershow]

列名中文，用函数

class StudentAdmin(admin.ModelAdmin):
    def gendershow(self):
        if self.gender:
            return "男"
        else:
            return "女"
    gendershow.short_description = '性别'

    def snameshow(self):
        return self.sname
    snameshow.short_description='姓名'
    
    list_display = [snameshow, gendershow]

 注册方式修改

由
admin.site.register(Student,StudentAdmin)

改为
@admin.register(Student)
class StudentAdmin(admin.ModelAdmin):
    。。。。略