cosmetics_shop/apps/config/models.py

# coding=utf-8

from django.db import models


class Config(models.Model):
    # 购买商品赠送积分比例
    KEY_POINT_RULE = "point_rule"
    # 推荐用户首次购买返利  1、2、3级返现金比例  4、5级返积分比例
    KEY_FIRST_LEVEL1 = "first_lv1"
    KEY_FIRST_LEVEL2 = "first_lv2"
    KEY_FIRST_LEVEL3 = "first_lv3"
    KEY_FIRST_LEVEL4 = "first_lv4"
    KEY_FIRST_LEVEL5 = "first_lv5"
    # 推荐用户再次购买返利  1、2、3级返现金比例  4、5级返积分比例
    KEY_AGAIN_LEVEL1 = "again_lv1"
    KEY_AGAIN_LEVEL2 = "again_lv2"
    KEY_AGAIN_LEVEL3 = "again_lv3"
    KEY_AGAIN_LEVEL4 = "again_lv4"
    KEY_AGAIN_LEVEL5 = "again_lv5"
    # 成为供应商需购买的指定商品
    KEY_DISTRIBUTOR_COMMODITY = "distributor_commodity"

    property = models.CharField(max_length=100, verbose_name=u'属性')
    value = models.TextField(verbose_name=u'值')

    class Meta:
        db_table = "system_config"
        verbose_name = u"综合设置"
        index_together = (
            'property',
        )
        default_permissions = ()
        permissions = []

    @staticmethod
    def get_value(property):
        item_list = [
            Config.KEY_POINT_RULE,
            Config.KEY_FIRST_LEVEL1, Config.KEY_FIRST_LEVEL2, Config.KEY_FIRST_LEVEL3, Config.KEY_FIRST_LEVEL4, Config.KEY_FIRST_LEVEL5,
            Config.KEY_AGAIN_LEVEL1, Config.KEY_AGAIN_LEVEL2, Config.KEY_AGAIN_LEVEL3, Config.KEY_AGAIN_LEVEL4, Config.KEY_AGAIN_LEVEL5,
        ]
        if property in item_list:
            try:
                row = Config.objects.get(property=property)
                return float(row.value)
            except:
                return 0
        return 0

    @staticmethod
    def get_commodity():
        try:
            commodity = Config.objects.get(property=Config.KEY_DISTRIBUTOR_COMMODITY).value
            return commodity
        except:
            return ''