【发布时间】：2020-06-18 21:01:19
【问题描述】：
我正在尝试获取我的一些模型方法的总和并将它们显示在结果页面上。我不确定在我的views.py 中完成这项工作的可能性有多大。运行服务器时出现以下错误。
+“方法”和“方法”不支持的操作数类型
- models.py
class Organization(ModelFieldRequiredMixin, models.Model):
exist = models.BooleanField(help_text='Does organization exist physically?')
blacklist = models.BooleanField(help_text='Has organization previously been blacklisted by a national authority, funder or fund manager?')
grant_amount = MoneyField(decimal_places=2, max_digits=12, help_text='Total amount of grant(s) from largest donor to organization ')
estimatedAnnual_budget = models.IntegerField(help_text='Estimated annual budget of the organization (inclusive of the largest funder), in US Dollars')
class Scores(ModelFieldRequiredMixin, models.Model):
organization = models.ForeignKey(Organization,on_delete=models.CASCADE)
score = models.DecimalField(max_digits=9, decimal_places=2)
# Section1 - ORGANIZATIONAL BACKGROUND
def exist_score(self):
if self.organization.exist == True:
self.score=0.1
return self.score #The higher score
else:
score=0.1
return self.score #The lower score
def accessibility_score(self):
if self.organization.accessibility == True:
self.score=5
return self.score
else:
score=0
return self.score
def blacklist_score(self):
if self.organization.blacklist == True:
self.score=0
return self.score
else:
score=0
return self.score
# Section2 - PREVIOUS GRANTS & PERFORMANCE
def grant_amount_score(self):
if self.organization.grant_amount >= 2000000:
self.score=3.5
return self.score
else:
score=0
return self.score
def estimatedAnnual_budget_score(self):
if self.organization.estimatedAnnual_budget == True:
self.score=2
return self.score
else:
score=0.1
return self.score
- Views.py
def results_view(request):
scores=Scores()
previous_implementation = scores.exist_score + scores.accessibility_score + scores.blacklist_score + scores.grant_amount_score + scores.estimatedAnnual_budget_score
【问题讨论】：