Django - Import Export - Upload multiple files

问题

Im using django import-export module and Im following this documentation:

https://simpleisbetterthancomplex.com/packages/2016/08/11/django-import-export.html#importing-data

I want to create an upload-page where the user can upload multiple files.

This is how far I got:

views.py

def upload_data(request):
    if request.method == 'POST':
        wo_resource = WorkordersResource()
        pl_resource = PlantResource()
        se_resource = SeriesResource()
        re_resource = ResourcesResource()
        rd_resource = ResourceDemandsResource()
        dataset = Dataset()
        wo_data = request.FILES.get('workorders_key', None)
        pl_data = request.FILES.get('plants_key', None)
        se_data = request.FILES.get('series_key', None)
        re_data = request.FILES.get('resources_key', None)
        rd_data = request.FILES.get('resourcedemands_key', None)
        wo_imported_data = dataset.load(wo_data.read())
        pl_imported_data = dataset.load(pl_data.read())
        se_imported_data = dataset.load(se_data.read())
        re_imported_data = dataset.load(re_data.read())
        rd_imported_data = dataset.load(rd_data.read())
        wo_result = wo_resource.import_data(dataset, dry_run=True)
        pl_result = pl_resource.import_data(dataset, dry_run=True)
        se_result = se_resource.import_data(dataset, dry_run=True)
        re_result = re_resource.import_data(dataset, dry_run=True)
        rd_result = rd_resource.import_data(dataset, dry_run=True)
        if not wo_result.has_errors():
            wo_resource.import_data(dataset, dry_run=False)  
        elif not pl_result.has_errors():
            pl_resource.import_data(dataset, dry_run=False)  
        elif not se_result.has_errors():
            se_resource.import_data(dataset, dry_run=False)  
        elif not re_result.has_errors():
            re_resource.import_data(dataset, dry_run=False) 
        elif not rd_result.has_errors():
            rd_resource.import_data(dataset, dry_run=False) 
        else:
            print(result)
    return render(request,'import.html')

import.html

 <form class="importform" method="post" enctype="multipart/form-data"> {% csrf_token %}
        <div class="formlabel">
        <label class="uploadlabel">Workorders</label>
        <input class="uploadform" type="file" name="workorders_key" placeholder="Workorders">                
        </div>
        <div class="formlabel">
            <label class="uploadlabel">Plants</label>
            <input class="uploadform"  type="file" name="plants_key" placeholder="Plants">
        </div>
        <div class="formlabel">
        <label class="uploadlabel">Series</label>
        <input class="uploadform"  type="file" name="series_key" placeholder="Series">                
        </div>
        <div class="formlabel">
        <label class="uploadlabel">Resources</label>
        <input class="uploadform"  type="file" name="resources_key" placeholder="Resources">
        </div>
        <div class="formlabel">
        <label class="uploadlabel">Resource Demands</label>
        <input class="uploadform"  type="file" name="resourcedemands_key" placeholder="Resource Demands">                
        </div>
        <button type="submit" class="btn btn-primary">Upload</button>
      </form>

The data from the first file gets imported, the data from the other files not.

Thank you

回答1:

There has been a dependency update that broke django-import-export. You just need to force tablib version to 0.14.0.

There's an issue on django-import-export github: #1064

回答2:

You need to check that your file uploads are not Null. request.FILES will return the key error if its contents are null.

You need to set a default value with request.FILES.get('file', <default>) where <default> is either another file or None.

For example in your code, if we take None as the default value, the lines:

wo_data = request.FILES['workorders_key']
pl_data = request.FILES['plants_key']
se_data = request.FILES['series_key']
re_data = request.FILES['resources_key']
rd_data = request.FILES['resourcedemands_key']

should become:

wo_data = request.FILES.get('workorders_key', None)
pl_data = request.FILES.get('plants_key', None)
se_data = request.FILES.get('series_key', None)
re_data = request.FILES.get('resources_key', None)
rd_data = request.FILES.get('resourcedemands_key', None)

来源：https://stackoverflow.com/questions/59752539/django-import-export-upload-multiple-files

标签

django

django-import-export