class tag(models.Model):
name = models.CharField(max_length=20, verbose_name='標簽')
class book(models.Model):
name = models.CharField(max_length=50, verbose_name='書名')
tags = models.TextField(null=True, verbose_name='標簽')
# 標簽查詢
def get_tag_list():
return tag.objects.values_list("name", "name")
# 表單類定義
class bookForm(forms.ModelForm):
tags = forms.MultipleChoiceField(label='標簽', widget=widgets.CheckboxSelectMultiple)
def __init__(self, *args, **kwargs):
super(cameraForm, self).__init__(*args, **kwargs)
# 保證每次初始化有最新的標簽列表
self.fields['tags'].choices = get_tag_list()
# 由于會在數據庫中存儲為列表字符串，需在賦值時轉回列表對象，才能在修改表單時識別原值
self.initial['tags'] = eval(self.initial['tags'])
class Meta:
model = book
exclude = []
# book擴展
class bookAdmin(admin.ModelAdmin):
search_fields = 'name', 'tags')
list_display = ( 'name', 'tags')
form = bookForm
# 注冊到admin中
admin.site.register(book, bookAdmin)
