Thanks.
My solution:
urls.py
url(r'^download/$', 'views.download', name='download'),
template.html
<p><a href="/download/">Download dei dati</a><p><p><a
href="home">Indietro</a></p>
views.py
def download(request):
data = open(os.path.join(settings.MEDIA_ROOT, 'static/tmp/dati.csv'),
'r').read()
resp = HttpResponse(data, mimetype='application/x-download')
resp['Content-Disposition'] = 'attachment; filename=dati.csv'
return resp
it works!
Il giorno giovedì 31 agosto 2017 17:58:27 UTC+2, giuseppe ricci ha scritto:
>
> Hi guys, I need some help to insert a link to download a file. In a view I
> read data from a csv file and I show them in a table in a template. Under
> the table I need to insert, when there are data,
> a link similar as Download data and when user click it, he download the
> datafile, previously I wrote the same data in a csv file. You can see a
> part of interested view and the template to show data.
> In the code doesn't download anything.
>
> views.py
>
> listafile = os.listdir('static/dati')
>
> fileok=[]
> context={}
> i=0
> for file in listafile:
> inizio=str(file[0:4]).strip()
> if inizio==anno:
> fileok.append(file)
> elif inizio=='coun':
> contaf=str(file[6:10]).strip()
> if contaf==anno:
> fileok.append(file)
> else:
> pass #print "File NON trovato", inizio, anno
>
> for nomefile in fileok:
> nomedato=str(nomefile[5:-4]).strip()
> if nomedato==tipodati:
> path2file=str(("static/dati/"+str(nomefile)).strip())
> with open(path2file) as f:
> for line in f:
> riga = line.split(";")
> if riga[0]==cciaa:
> context[i]=line
> i=i+1
> #print "context", context
>
> d2 = { k:v.split(";") for k,v in context.items() }
> j=0
> datilist={}
> field_names = ['Provincia CCIAA', 'Data Ora', 'Numero REA', 'Forma
> Giuridica', 'Count dati']
> f=open('static/tmp/dati.csv', 'w')
> writer = csv.writer(f) #questa definisce la variabile writer usata
> x scrivere i dati nel file csv!!!
> writer.writerow(field_names)
>
> while j<len(d2):
> datilist[j]=[d2[j][0], d2[j][3], d2[j][5], d2[j][7],
> d2[j][10].rstrip(), ''] #
> writer.writerow(datilist[j])
> j=j+1
>
> return render_to_response('showdata.html',
> context_instance=RequestContext(request, {'dictdati': datilist} ))
>
> else:
>
> return render_to_response('home.html',
> context_instance=RequestContext(request, {'var': d} ))
>
>
> def showdata(request):
> return render_to_response('showdata.html',
> context_instance=RequestContext(request, context))
>
> showdata.html
> <div class="container">
> <div class="jumbotron">
> <h1>Statistiche Dkey</h1>
> <p>Ecco in forma tabellare i dati richiesti..</p>
>
> <form method="post" action="/getdata/">
>
> <style>
> table { width: 90%; background-color: #FFFFFF; color:
> #000000; }
> th, td { width: 4%; }
> </style>
>
> <table border="0" cellspacing="0" cellpadding="0"
> align="center">
> <thead>
> <tr>
> <th>Nome</th>
> <th>Data_Ora</th>
> <th>Numero</th>
> <th>Forma</th>
> <th>Count</th>
>
> </tr>
> </thead>
> <tbody>
>
> <tr>
>
> {% for key, item in dictdati.items %}
>
> {% for idx in item %}
> {% if idx != '' %}
> <td>{{ idx }}</td>
> {% else %}
> <tr><td></td></tr>
> {% endif %}
> {% endfor %}
>
> {% endfor %}
> <tr>
> </tbody>
> </table>
> </form>
>
> <p><a href="{{ MEDIA_URL }}/dati.csv">Download dei dati</a><p>
>
> </div>
> </div> <!-- /container -->
>
>
>
>
> Can someone give me some suggestion? Other posts didn't aided me.
> Thanks.
>
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