django filter过滤器实现显示某个类型指定字段不同值

1，前端样式

2，html代码

{% load   asset_filter %}

<div class="col-sm-2">
    <select class="input-sm form-control select2  inline" name="ServiceModel">
        <option value="">模块</option>
        {% for i in  'Ecs'|ecs_model_field_distinct:'ServiceModel' %}
            {% if i.0 %}
                <option value="{{ i.0 }}">{{ i.0 }}</option>
            {% endif %}
        {% endfor %}
    </select>
</div>

3，后端代码

asset_filter.py 内容如下：

@register.filter(name='ecs_model_field_distinct')
def ecs_model_field_distinct(model_name, field_name):
    '''
    获取model_name模块对象的某个属性field_name的distinct值，返回值的数组
    :param model_name:
    :param field_name:
    :return:
    '''
    asset_app = apps.get_app_config('rule')
    return asset_app.get_model(model_name).objects.all().values_list(field_name).distinct()