How to pass the value of a list in Django to a method?

Question

I am trying to do something like this. I have a navigation bar with li items:

**index.html**

 MIS
                          MA
                          UXD
                          OSS

Here when I navigate to the first list '

', i.e for MIS, I have to redirect to pdfNotes.html with the name as 'mis' so that I can use this as a parameter in views.py to filter my data and display only 'MIS' details in pdf notes. It is the same for all other li items.

**pdfNotes.html**
{% if pdfnote %}



    {% with counter=1 %}
    {% for item in pdfnote %} 
    {% with crs=item.course %}
    
    
    {% endwith %}
    {% endfor %}
    {% endwith %}


    
        # 
        NAME
        DOWNLOAD FILE
    

        {{crs}}
        {{pattn}}
        {{sem}}
        {{ forloop.counter}}
        {{item.name}}
        
            DOWNLOAD
            
    


**model.pdf**

class PDF_Notes(models.Model):

    name=models.CharField("File name",max_length=100)
    subject=models.CharField("Subject",max_length=50)
    course=models.CharField("Course",max_length=50)
    semester=models.CharField("Semister",max_length=50)
    year=models.CharField("Year",max_length=50)
    source=models.CharField("Source",max_length=100)
    file=models.FileField(upload_to="media/PdfNotes")

    def __str__(self):
        return self.name


**view.py**

def pdfNotes(request):

    pdfNotes_file=PDF_Notes.objects.all()
    #sub=request.GET[]
    if(request.GET['mis']):
        pdfNotes_file=PDF_Notes.objects.all().filter(subject="MIS")
    n=len(pdfNotes_file)
    print("hello",pdfNotes_file)
    params={'pdfnote':pdfNotes_file,'total_items':n}
    return render(request,'pdfNotes.html',params)

How can I do that?

user_6705092 · Answer

As far as I can see you are constructing all url calls in your index.html with the same href, so that is hard to refine later in request processing. Why don't you simply add a parameter to the url with the required pdf sections and check for that?

For example:

MIS

change in urls.py to accept this parameter:

path('pdfNotes/', views.pdfNotes)

and process that parameter in views.py:

pdf_section = requests.get['pdf_section']

and then do with pdf_section whatever you wish.

I hope that I got your question correctly? Hope it helps.

user_16936785 · Answer

I would recommend creating the following function:

def get_pdf_notes(request, subject):
    pdfNotes_file=PDF_Notes.objects.all().filter(subject=subject)
    n=len(pdfNotes_file)
    params={'pdfnote':pdfNotes_file,'total_items':n}
    return render(request,'pdfNotes.html',params)

Add path in the URL for this get_pdf_notes with name 'get_pdf_notes' and then amend the url in your HTML as follows to pass the argument to the function:


 MIS
 MA
 UXD
 OSS

How to pass the value of a list in Django to a method?

2 Answers