Nrthugu

flask with a project in my project I'm uploading an application I'm developing. I have 2 image upload areas. I don't have any trouble when I load 2. 400 Bad Request: KeyError: I get an error in the 'gelinFoto' style when I upload an image or when I push the send button when I never load it. Where am I making a mistake?

def admin():

form = KisiForm(request.form)

    if request.method == "POST":

        gelinFoto = request.files['gelinFoto']

        damatFoto = request.files['damatFoto']



        if gelinFoto or damatFoto:

            yol = app.config['UPLOAD_FOLDER'] + whuser

            yol = yol + '/profil'

            gfilename = secure_filename(gelinFoto.filename)

            dfilename = secure_filename(damatFoto.filename)

            gelinFoto.save(os.path.join(yol, gfilename))

            damatFoto.save(os.path.join(yol, dfilename))



        kisi = bilgi(gelinFoto = gfilename, damatFoto = dfilename)

        db.session.add(kisi)

        db.session.commit()

        return redirect(url_for("admin"))

    return render_template("admin/index.html",form=form)

Html

<form method="post" enctype="multipart/form-data" class="col-12">

<div class="form-group">

 <label for="exampleFormControlFile1">Gelinin Fotoğrafı : </label>

  <div class="upload">

    <img src="{{ url_for('static', filename='admin/images/upload.png') }}" class="uploadImage" alt="">{{ render_field(form.gelinFoto,id="gelinFoto",class="gdfoto",accept=".png,.jpg,.jpeg") }} </div>

    <small id="emailHelp" class="form-text text-muted">Gelinin fotoğrafını yükleyiniz.</small>

 </div>

<div class="form-group">

     <label for="exampleFormControlFile1">Damatın Fotoğrafı : </label>

     <div class="upload"><img src="{{ url_for('static', filename='admin/images/upload.png') }}" class="uploadImage" alt="">{{ render_field(form.damatFoto,id="damatFoto",class="gdfoto",accept=".png,.jpg,.jpeg") }}

  </div>

  <small id="emailHelp" class="form-text text-muted">Damatın fotoğrafını yükleyiniz.</small>

In your view you have both

gelinFoto = request.files['gelinFoto']

damatFoto = request.files['damatFoto']

This is why you get that error

When the file is not provided, then there is no request.files['gelinFoto'] for example, and Python tries to look it up, but it can't cause there is no key named gelinFoto!

The simplest trick is defining theme like this:

gelinFoto = request.files['gelinFoto'] if request.files.get('gelinFoto') else None

damatFoto = request.files['damatFoto'] if request.files.get('damatFoto') else None

This way it uses an inline condition to get the keys, if they are not provided, then it sets the value None

Later in your code I see you did that again,

if gelinFoto or damatFoto:

    # ... Your other coders 

    gfilename = secure_filename(gelinFoto.filename)

    dfilename = secure_filename(damatFoto.filename)

    gelinFoto.save(os.path.join(yol, gfilename))

    damatFoto.save(os.path.join(yol, dfilename))

It's wrong, you are checking with it with or and then u except both to be not None !!

It's better to do the operation for each one separately, like:

if gelinFoto:

    yol = app.config['UPLOAD_FOLDER'] + whuser

    yol = yol + '/profil'

    gfilename = secure_filename(gelinFoto.filename)

    gelinFoto.save(os.path.join(yol, gfilename)



if damatFoto:

    yol = app.config['UPLOAD_FOLDER'] + whuser

    yol = yol + '/profil'

    dfilename = secure_filename(damatFoto.filename)

    damatFoto.save(os.path.join(yol, dfilename)



# I'm not sure if there is a better way to do this but about kisi line This is the best that came up to me ( ofcourse there are better ways )

if dfilename and gfilename:

    kisi = bilgi(gelinFoto = gfilename, damatFoto = dfilename)

elif gfilename:

    kisi = bilgi(gelinFoto = gfilename)

elif dfilename:

    kisi = bilgi(damatFoto = dfilename)