Python 无法分析余数：'；[工厂id]'；从'；总生态足迹[工厂id]'；_Python_Django

Python 无法分析余数：'；[工厂id]'；从'；总生态足迹[工厂id]'；

python django

Python 无法分析余数：'；[工厂id]'；从'；总生态足迹[工厂id]'；,python,django,Python,Django,我的视图.py： def home(request): if not request.user.is_authenticated(): template = 'data/login.html' return render(request, template) else: plants = Plant.objects.filter(user=request.user) total_ecof = []

我的视图.py：

def home(request):
    if not request.user.is_authenticated():
        template = 'data/login.html'
        return render(request, template)
    else:
            plants = Plant.objects.filter(user=request.user)
            total_ecof = []
            total_ectr = []
            for plant in plants:
                x = 0
                y = 0
                for recording in Recording.objects.filter(plant__id=plant.id):
                    x += (recording.time_to_detect * recording.performance_loss) / (
                    plant.nominal_power * recording.years_of_operation)
                    y += ((10 + 15 + 200 + 50) * plant.no_modules + 240 * 50 * recording.occurrence * plant.no_modules) / (
                         plant.nominal_power * 3)
                total_ecof.append(x)
                total_ectr.append(y)
        template = 'data/home.html'
        context = {
                    'plants':plants,
                    'total_ecof':total_ecof,
                    'total_ectr':total_ectr,
                    }
        return render(request, template, context)

def home(request):
    if not request.user.is_authenticated():
        template = 'data/login.html'
        return render(request, template)
    else:
            plants = Plant.objects.filter(user=request.user)
            for plant in plants:
                plant.total_ecof = 0
                for recording in Recording.objects.filter(plant__id=plant.id):
                    plant.total_ecof += (recording.time_to_detect * recording.performance_loss) / (plant.nominal_power * recording.years_of_operation)
        template = 'data/home.html'
        context = {
                    'plants':plants
                    }
        return render(request, template, context)

{% for plant in plants %}
    <tr>
       <td>{{ plant.management_company }}</td>
       <td>{{ plant.plant_name }}</td>
       <td>{{ plant.total_ecof }}</td>
    </tr>
{% endfor %}

我的html模板

{% for plant in plants %}
    <tr>
       <td>{{ plant.management_company }}</td>
       <td>{{ plant.plant_name }}</td>
       <td>{{total_ecof[plnat.id]}}</td>
    </tr>
{% endfor %}

我不明白为什么。我做错了什么

此外，请您帮助我创建一个条形图，其中x轴是植物，y轴是相应的总生态足迹

不要为总数创建单独的列表。创建一个由（记录，总计）对组成的列表，或者直接在记录实例上设置总计。

@Exprator和@Daniel感谢您的评论。我找到了解决办法：

首先，在我的models.py中，我在课堂上添加了以下内容：

def total_ecof(self): return self
然后我更改了我的视图。py：

def home(request): if not request.user.is_authenticated(): template = 'data/login.html' return render(request, template) else: plants = Plant.objects.filter(user=request.user) total_ecof = [] total_ectr = [] for plant in plants: x = 0 y = 0 for recording in Recording.objects.filter(plant__id=plant.id): x += (recording.time_to_detect * recording.performance_loss) / ( plant.nominal_power * recording.years_of_operation) y += ((10 + 15 + 200 + 50) * plant.no_modules + 240 * 50 * recording.occurrence * plant.no_modules) / ( plant.nominal_power * 3) total_ecof.append(x) total_ectr.append(y) template = 'data/home.html' context = { 'plants':plants, 'total_ecof':total_ecof, 'total_ectr':total_ectr, } return render(request, template, context)

def home(request): if not request.user.is_authenticated(): template = 'data/login.html' return render(request, template) else: plants = Plant.objects.filter(user=request.user) for plant in plants: plant.total_ecof = 0 for recording in Recording.objects.filter(plant__id=plant.id): plant.total_ecof += (recording.time_to_detect * recording.performance_loss) / (plant.nominal_power * recording.years_of_operation) template = 'data/home.html' context = { 'plants':plants } return render(request, template, context)

{% for plant in plants %} <tr> <td>{{ plant.management_company }}</td> <td>{{ plant.plant_name }}</td> <td>{{ plant.total_ecof }}</td> </tr> {% endfor %}
和我的html：

def home(request): if not request.user.is_authenticated(): template = 'data/login.html' return render(request, template) else: plants = Plant.objects.filter(user=request.user) total_ecof = [] total_ectr = [] for plant in plants: x = 0 y = 0 for recording in Recording.objects.filter(plant__id=plant.id): x += (recording.time_to_detect * recording.performance_loss) / ( plant.nominal_power * recording.years_of_operation) y += ((10 + 15 + 200 + 50) * plant.no_modules + 240 * 50 * recording.occurrence * plant.no_modules) / ( plant.nominal_power * 3) total_ecof.append(x) total_ectr.append(y) template = 'data/home.html' context = { 'plants':plants, 'total_ecof':total_ecof, 'total_ectr':total_ectr, } return render(request, template, context)

def home(request): if not request.user.is_authenticated(): template = 'data/login.html' return render(request, template) else: plants = Plant.objects.filter(user=request.user) for plant in plants: plant.total_ecof = 0 for recording in Recording.objects.filter(plant__id=plant.id): plant.total_ecof += (recording.time_to_detect * recording.performance_loss) / (plant.nominal_power * recording.years_of_operation) template = 'data/home.html' context = { 'plants':plants } return render(request, template, context)

{% for plant in plants %} <tr> <td>{{ plant.management_company }}</td> <td>{{ plant.plant_name }}</td> <td>{{ plant.total_ecof }}</td> </tr> {% endfor %}

{%用于plants in plants%} {{工厂管理公司} {{plant.plant_name} {{plant.total_ecof} {%endfor%}

我不知道这是否是最好的解决方案，但它正在发挥作用：）谢谢你们
在模板中，您引用了total_ecof[plnat.id]。是的，但我如何解决这个问题？例如，我需要的是plant.id=3，然后是total_ecof[3]，正如所有其他答案和评论中所解释的，以及文档中明确说明的那样，您不能在模板中执行类似操作。