Xadmin-自定义字段支持实时编辑

  # 实时编辑功能
    list_editable = [‘reason_one‘, ‘low_price‘, ‘fbm_display‘]
# 因为这个字段后期要加一些显示的逻辑，所以需要自定义，但是又希望能支持实时编辑
def fbm_display(self, row):

        return row.artificial_confirm_stock_no_fbn
    field = Goods.artificial_confirm_stock_no_fbn
    fbm_display.short_description = ‘补FBM‘

class Goods(models.Model):
    ‘‘‘
    商品表
    ‘‘‘
   
    artificial_confirm_stock_no_fbn = models.IntegerField(verbose_name=‘人工海外补货‘, default=-1)
   
# 在表中添加一个函数，函数名要跟自定义字段的名字相同
    def fbm_display(self):
        return ‘artificial_confirm_stock_no_fbn‘

def lookup_field(name, obj, model_admin=None):
    opts = obj._meta

    try:
        f = opts.get_field(name)
    except models.FieldDoesNotExist:
        # For non-field values, the value is either a method, property or
        # returned via a callable.
        if callable(name):
            attr = name
            value = attr(obj)
        elif (
                model_admin is not None
                and hasattr(model_admin, name)
                and name not in (‘__str__‘, ‘__unicode__‘)
        ):
            attr = getattr(model_admin, name)
            value = attr(obj)
        else:
            if is_rel_field(name, obj):
                parts = name.split("__")
                rel_name, sub_rel_name = parts[0], "__".join(parts[1:])
                rel_obj = getattr(obj, rel_name)
                if rel_obj is not None:
                    return lookup_field(sub_rel_name, rel_obj, model_admin)
            attr = getattr(obj, name)
            if callable(attr):
                value = attr()
            else:
                value = attr
        f = None
# 在这里添加以下代码，目的是为了添加filed
        if hasattr(obj, name):
            field = getattr(obj, name)()
            opts = obj._meta
            f = opts.get_field(field)
# 添加结束
    else:
        attr = None
        value = getattr(obj, name)
    return f, attr, value

 @filter_hook
    def get(self, request, object_id):
        model_fields = [f.name for f in self.opts.fields]

        # fields = [f for f in request.GET[‘fields‘].split(‘,‘) if f in model_fields]
# 将上面的代码注释，改成下面代码，如果不改这段代码，目的是将自定义的字段名称替换成数据库中的字段名称，如果使用自定义的字段名称，form不识别字段类型，前端会不显示input框
        fields = []
        for f in request.GET[‘fields‘].split(‘,‘):
            if f in model_fields:
                fields.append(f)
            else:
                if hasattr(self.model, f):
                    fields.append(getattr(self.model, f)(self))
# 结束
        defaults = {
            "form": self.form,
            "fields": fields,
            "formfield_callback": self.formfield_for_dbfield,
        }
        form_class = modelform_factory(self.model, **defaults)
        form = form_class(instance=self.org_obj)

        helper = FormHelper()
        helper.form_tag = False
        helper.include_media = False
        form.helper = helper

        s = ‘{% load i18n crispy_forms_tags %}<form method="post" action="{{action_url}}">{% crispy form %}‘ +             ‘<button type="submit" class="btn btn-success btn-block btn-sm">{% trans "Apply" %}</button></form>‘
        t = template.Template(s)
        c = template.Context({‘form‘: form, ‘action_url‘: self.model_admin_url(‘patch‘, self.org_obj.pk)})

        return HttpResponse(t.render(c))