在django中生成通过chart.js获取的图表的pdf

npm install chart.js --save

from django.http import FileResponse
from django.template.loader import get_template
from django.views import View
from django.conf import settings
from io import BytesIO

import chartjs

class ChartPDFView(View):
    def get(self, request):
        # 获取数据并生成图表
        # ...

        # 使用Chart.js生成图表
        chart = chartjs.get_chart(chart_type, chart_labels, chart_data, chart_options)

        # 创建PDF渲染器
        template = get_template('chart_pdf.html')
        context = {'chart': chart}
        html = template.render(context)
        pdf_file = BytesIO()

        # 使用ReportLab将HTML渲染为PDF文件
        pdf = settings.PDF_RENDERER()
        pdf.createPDF(html, dest=pdf_file)

        # 返回PDF文件
        pdf_file.seek(0)
        response = FileResponse(pdf_file, as_attachment=True, filename='chart.pdf')
        return response