Question

我有一个Django查询，其中将以月作为输入并显示带有查询数据的pdf文件。

element = request.GET.get('q')
    query=employeeModel.objects.filter(month__contains = element,username = request.user).values_list()

这是该查询的模板

<h1>Employee PaySlip Generation</h1>
<h5>Hello {{request.user}}</h5>
    <form method="GET" action="">
    <span><input type="text"  name='q' placeholder="Search: Month" value="{{ request.GET.get }}"/></span>
    <span><input class="btn btn-primary btn-sm" type="submit" value="Search" >
    </form>

我不知道该怎么做，该怎么做，按钮不仅会向查询提交键入的值，还会调用pdf_generate函数。

修改

utils.py

from io import BytesIO
from django.http import HttpResponse
from django.template.loader import get_template

from xhtml2pdf import pisa

def render_to_pdf(template_src, context_dict={}):
    template = get_template(template_src)
    html  = template.render(context_dict)
    result = BytesIO()
    pdf = pisa.pisaDocument(BytesIO(html.encode("ISO-8859-1")), result)
    if not pdf.err:
        return HttpResponse(result.getvalue(), content_type='application/pdf')
    return None

从utils.py导入reder_to_pdf

views.py

def user_pdf(request):
    template = get_template('payslip.html')

    element = request.GET.get('q')
    print(element)
    query = employeeModel.objects.values_list().filter(username= request.user,month__contains = element )[0]
    name = query[1]
    emp_id = query[2]
    context = {'query_name':name, 'query_id':emp_id}
    html = template.render(context)
    pdf = render_to_pdf('payslip.html', context)


    return HttpResponse(pdf, content_type='application/pdf')

按钮既提交又调用函数

0 个答案: