Question

我有一个带有多个文件字段的'ProjectRecord'模型：

class ProjectRecord(models.Model):
prjname = models.CharField(max_length=200, unique=True)
agencyID = models.CharField(max_length=30, unique=True, blank=True, null=True)
client = models.CharField(max_length=50, choices=CLIENT_CHOICES)
...
upload_template1 = models.FileField(max_length=100, upload_to="media/%Y%m%d", blank=True, null=True)
    upload_template2 = models.FileField(max_length=100, upload_to="media/%Y%m%d", blank=True, null=True)
    upload_template3 = models.FileField(max_length=100, upload_to="media/%Y%m%d", blank=True, null=True)

我的上传处理程序非常基本：

def handle_uploaded_file(file): 
     destination = open('tmp.pdf', 'wb+') 
     for chunk in file.chunks(): 
             destination.write(chunk) 
             destination.close()

我的视图功能如下：

def edit_project(request, agencyID):
    if request.method == 'POST':
            a=ProjectRecord.objects.get(agencyID=agencyID)
            form = RecordForm(request.POST, request.FILES, instance=a)
            if form.is_valid():
                handle_uploaded_file(request.FILES['upload_template1', 'upload_template2', 'upload_template3' ])
                form.save()
                return HttpResponseRedirect('login.html')
    else:
            a=ProjectRecord.objects.get(agencyID=agencyID)
            form = RecordForm(instance=a)
    return render_to_response('portalproduction/production.html', {'form': form})

只要我有一个文件请求，现有代码才有效：

handle_uploaded_file(request.FILES['upload_template1'])

一旦我添加了多个文件请求（比如前一个视图函数），我就会收到关键错误。我正在努力实现的目标是什么，有人可以帮我查看视图功能吗？

这是生成的源

的简化版本

<div id="formshell" class="clearfix">
<form action="." method="POST" enctype="multipart/form-data">

    <div id="" class="component_stage clearfix">

        <div class="component_wrapper edit cw1">
            <table>
                <tr><td><input id="id_sellnumber1" type="text" name="sellnumber1" value="01" maxlength="30" /></td><td><input id="id_format1" type="text" name="format1" value="Inline Brochure" maxlength="64" /></td></tr>
                <tr><td colspan="2"><input id="id_componentname1" type="text" name="componentname1" value="PA-to-SC_Redhead Brochure" maxlength="200" /></td></tr>
                <tr><td colspan="2"><input type="file" name="upload_template1" id="id_upload_template1" /></td></tr>
            </table>

        </div> 
        <div class="component_wrapper edit cw2">
            <table>
                <tr><td><input id="id_sellnumber2" type="text" name="sellnumber2" value="02" maxlength="30" /></td><td><input id="id_format2" type="text" name="format2" value="OE" maxlength="64" /></td></tr>
                <tr><td colspan="2"><input id="id_componentname2" type="text" name="componentname2" value="PA-to-SC_RedheadOE" maxlength="200" /></td></tr>
                <tr><td colspan="2"><input type="file" name="upload_template2" id="id_upload_template2" /></td></tr>
            </table>
        </div>
        <div class="component_wrapper edit cw3" style="margin-right:0;">
            <table>
                <tr><td><input id="id_sellnumber3" type="text" name="sellnumber3" maxlength="30" /></td><td><input id="id_format3" type="text" name="format3" maxlength="64" /></td></tr>
                <tr><td colspan="2"><input id="id_componentname3" type="text" name="componentname3" maxlength="200" /></td></tr>
                <tr><td colspan="2"><input type="file" name="upload_template3" id="id_upload_template3" /></td></tr>
            </table>
        </div>



    <div id=""><input type='file' name='file' id='file'/><input type="submit" value="save record" /></div>

</form>

Answer 1

request.FILES根本没有密钥：('upload_template1', 'upload_template2', 'upload_template3')

这是request.FILES['upload_template1'], request.FILES['upload_template2'], request.FILES['upload_template3']

handle_uploaded_file(request.FILES['upload_template1'])
handle_uploaded_file(request.FILES['upload_template2'])
#... so on.

这将说明您的问题：

dic = {'key1':'value1', 'key2': 'value2'}
print dic['key1', 'key2']
# KeyError

dic['key1', 'key2'] = 'value3'
print dic['key1', 'key2']
# out: value3

同一模型中的多个文件上载字段

1 个答案: