forms.py 文件源码

def __init__(self, *args, **kwargs):
        self.product_attributes = []
        super(ProductForm, self).__init__(*args, **kwargs)
        self.fields['categories'].widget.attrs['data-placeholder'] = (
            pgettext_lazy('Product form placeholder', 'Search'))
        product_class = self.instance.product_class
        self.product_attributes = product_class.product_attributes.all()
        self.product_attributes = self.product_attributes.prefetch_related(
            'values')
        self.prepare_fields_for_attributes()