Question

与驾驶执照有关的问题。许可证具有指定的人员，该人员具有多种驾驶技能。每类驾驶技能都有一个续订日期和可能的多个相关限制

Name Lic Cat Renewal date Restrictions
  Tommy AM 12/05/15 44.01, 101, 999
  Tommy E+B 14/12/16
  Tommy C 18/04/18 101
  TG E+C 14/12/16 90, 101, 999,
  TG B 18/04/18 105

models.py

class Employee(models.Model):
    name = models.CharField(max_length=75)

class DrivingLicenceCategory(models.Model):
    name = models.CharField(max_length=11)

class IssuingBody(models.Model):
    name = models.CharField(max_length=75)

class DrivingLicence(models.Model):
    employee_id     = models.ForeignKey(Employee)
    driver_number   = models.CharField(max_length=49)
    permit_number   = models.CharField(max_length=49)
    issuing_body    = models.ForeignKey(IssuingBody)
    expiry_date     = models.DateField()

class DrivingLicenceRestrictions(models.Model):
    name        = models.CharField(max_length=21)
    description = models.CharField(max_length=1024, blank=True, null=True)

class DrivingLicenceCategoryRestrictions(models.Model):
    licence_category    = models.ForeignKey(DrivingLicenceCategory)
    licence_restriction = models.ForeignKey(DrivingLicenceRestrictions)
    expiry_date         = models.DateField()

class DrivingLicenceDetail(models.Model):
    driving_licence         = models.ForeignKey(DrivingLicence)
    category_restriction    = models.ManyToManyField(DrivingLicenceCategoryRestrictions)

admin.py

from django.contrib import admin
from drvlic.models import *

class DrvLicIssuingBodyAdmin(admin.ModelAdmin):
    search_fields = ('^name', )

class DrvLicCategoryAdmin(admin.ModelAdmin):
    search_fields = ('^name',)

class DrvLicRestrictionsAdmin(admin.ModelAdmin):
    search_fields = ('^name', )
    list_display        = ('id', 'name', 'description',)

class DrvLicLicenceAdmin(admin.ModelAdmin):
    search_fields = ('^employee',)

class DrvLicCategoryRestrictionsAdmin(admin.ModelAdmin):
    search_fields       = ('^employee',)
    filter_horizontal   = ('licence_category', 'licence_restriction')

admin.site.register(DrvLicIssuingBody, DrvLicIssuingBodyAdmin)
admin.site.register(DrvLicCategory, DrvLicCategoryAdmin)
admin.site.register(DrvLicRestrictions, DrvLicRestrictionsAdmin)
admin.site.register(DrvLicLicence, DrvLicLicenceAdmin)
admin.site.register(DrvLicCategoryRestrictions, DrvLicCategoryRestrictionsAdmin)

我的模型在Django Admin中生成上面的表是正确的还是模型应该不同？如何设置admin.py以允许访问并输入数据？

Django告诉我'DrvLicCategoryRestrictionsAdmin.filter_horizontal[0]' must be a ManyToManyField'。如果models.py的构造不正确，我认为这是不可能的。

Answer 1

搜索字段不需要“^”。只需search_fields = 'name'即可。要显示ManyToManyField，您需要遍历所有关联的对象。但是，即使在此之前，我认为你需要重新构建你的模型，以拥有一个“全包围”的模型来保存你想要制作的表格。所以，像：

models.py

class License(models.Model):
    employee = models.ForeignKey(Employee)
    category = models.ManyToMany(DrivingLicenceCategory)
    restriction = models.ManyToMany(DrivingLicenceRestrictions)
    expiry_date = models.DateField()

    def get_categories(self):
        return ",<br>".join([a.name for a in self.category.all()])

    def get_restrictions(self):
        return ",<br>".join([a.name for a in self.restriction.all()])

admin.py

class LicenseAdmin(admin.ModelAdmin):
    list_display = ('employee', 'get_categories', 'get_restrictions', 'expirary_date')

Django Admin中的多个ManyToMany

1 个答案: