CODEWITHSUNDEEP
pythondjango
Simon TheChain
Simon TheChain

Reputation: 277

Django: How to use FilePathField to get file size

I work in a postproduction company, we have our media files on a server. Through the site running on a second server, the user would point to a file, perform some operations (calculating checksums for example) and save the results in the database.

I'm looking for a "best practices" example on how to use FilePathField to get the size of a file. I've read tutorials and searched in the docs, but I'm having trouble putting the pieces together for my needs.

Some relevant code (EDIT: corrected the views, #1 and #3 are printed):

models.py

    class AssetTest(models.Model):
        file_path = models.FilePathField(path=r"", default="")
        file_name = models.CharField(max_length=250, default="")
        file_size = models.IntegerField(default=0)

        def __str__(self):
            return self.file_path

forms.py

class AssetTestForm(forms.ModelForm):

    class Meta:
        model = AssetTest
        fields = ("file_name", "file_size")

views.py

def asset_select(request):
    if request.method == 'POST':
        print("1")
        form = AssetTestForm(request.POST)

        if form.is_valid():
            print("2")
            form.save(commit=False)
            form.file_name = request.FILES['file'].name
            form.file_size = request.FILES['file'].size
            form.save()
            return HttpResponseRedirect('/assetmanage/assets/')

        print("3")

    else:
        print("4")
        form = AssetTestForm()
return render(request, 'assetmanage/asset_select.html', {'form': form})

asset_select.html

{% extends "assetmanage/base.html" %}
{% block title %}Add Asset{% endblock %}

{% block body %}
<div class="container-fluid">

    <div class="row">

        <div class="col-sm-12 col-md-7">
            <div class="panel panel-default">
                <div class="panel-body">

                    <form class="form-horizontal" name="asset_select" action="/assetmanage/asset/test/" method="post" enctype="multipart/form-data">
                        {% csrf_token %}

                        <div class="form-group">
                            <label class="control-label col-sm-2">Select a file:</label>
                            <input type="file" name="asset_file">
                        </div>

                        <div class="form-group">
                            <div class="col-sm-offset-2 col-sm-10">
                                <button type="submit" class="btn btn-success">Submit</button>
                            </div>
                        </div>

                    </form>

                </div>
            </div>
        </div>
    </div>
</div>
{% endblock %}

Upvotes: 1

Views: 2331

Answers (1)

Raja Simon
Raja Simon

Reputation: 10305

In your FilePathField give the correct path name 

FilePathField(path="/home/simon/",..)

cleaned_data of FilePathField will give you the exact path so using that to get the file name and file size of it... 

form = AssetTestForm(request.POST)
if form.is_valid():
    form.save(commit=False)
    temp_file_obj = TemporaryFileUploadHandler(form.cleaned_data['file_path'])
    form.instance.file_size = temp_file_obj.chunk_size
    form.instance.file_name = form.cleaned_data['file_path'].split("/")[-1]
    form.save()

Upvotes: 1

Related Questions