在基于类的视图Django + chartit中转换函数视图

Question

我有这个功能视图。

如何在基于类的视图中转换此函数？

在这种情况下，我使用TemplateView？

def linechart(request):
    ds = DataPool(
        series=[{'options': {
            'source': MonthlyWeatherByCity.objects.all()},
            'terms': [
            'month',
            'houston_temp',
            'boston_temp']}
        ])

    cht = Chart(
        datasource=ds,
        series_options=[{'options': {
            'type': 'bar',
            'stacking': False},
            'terms': {
            'month': [
                'boston_temp',
                'houston_temp']
        }}],
        chart_options={'title': {
            'text': 'Weather Data of Boston and Houston'},
            'xAxis': {
            'title': {
                'text': 'Month number'}}})

    return render_to_response('core/linechart.html', {'weatherchart': cht})

返回错误

Answer 1

class MyTemplateView(TemplateView):
    template_name = 'core/linechart.html'

    def get_ds(self):
        return DataPool(...)

    def get_water_chart(self):
        return Chart(datasource=self.get_ds() ...)

    def get_context_data(self, **kwargs):
        context = super(MyTemplateView, self).get_context_data(**kwargs)
        context['weatherchart'] = self.get_water_chart()

        return context

网址中的

应该是这样的

url(r'^$', MyTemplateView.as_view(), name='index'),

Answer 2

我认为你最好的选择是使用通用的View而不是模板，因为它很容易进行切换。类似的东西：

from django.shortcuts import get_object_or_404
from django.shortcuts import render 
from django.views.generic import View

class LinechartView(View):
  def get(self, request, *args, **kwargs):
    ds = DataPool(
        series=[{'options': 
            {'source': MonthlyWeatherByCity.objects.all()},
            'terms': [
                'month',
                'houston_temp',
                'boston_temp']}
        ])

    cht = Chart(
        datasource=ds,
        series_options=[
            {'options': {
                'type': 'bar',
                'stacking': False
            },
            'terms': {
                'month': [
                    'boston_temp',
                    'houston_temp']
        }}],
        chart_options={
            'title': {
                'text': 'Weather Data of Boston and Houston'},
                'xAxis': {
                    'title': {
                    'text': 'Month number'
        }}})

    return render(request, {'weatherchart': cht})
  # Doing it like this also allows flexibility to add things like a post easily as well
  # Here's an example of how'd you go about that

  def post(self, request, *args, **kwargs):
    # Handles updates of your model object
    other_weather = get_object_or_404(YourModel, slug=kwargs['slug'])
    form = YourForm(request.POST)
    if form.is_valid():
        form.save()
    return redirect("some_template:detail", other_weather.slug)    

我继续进行格式化，尽我所能，试图在stackoverflow中查看它。为什么不使用像pycharm这样的IDE来简化生活（至少在格式化方面）？