Glavna težava je, da Django ekstrahira matriko iz post matrike kot seznam Python in ne kot matriko NumPy. To lahko privede do težav, če morate na matriki izvajati kakršne koli matematične operacije, saj so matrike NumPy veliko bolj učinkovite za takšno delo.
Na svoji strani HTML imam matriko, ki jo objavljam v svojem pogledu Django. Matrika je seznam seznamov in želim izvleči posamezne sezname iz objavljenih podatkov. Kako naj to naredim?
Evo, kar imam do zdaj:
def myview(request):
if request.method == 'POST': # If the form has been submitted...
form = MyForm(request.POST) # A form bound to the POST data
if form.is_valid(): # All validation rules pass
# Process the data in form.cleaned_data
return HttpResponseRedirect('/thanks/') # Redirect after POST
else:
form = MyForm() # An unbound form
return render(request, 'mytemplate.html', {'form':form})
In mytemplate.html, imam matriko potrditvenih polj, ki je videti takole:
<table><tr><td>1,1 <input type="checkbox" name="matrix[0][0]" value="1" /> </td> <td> 1,2 <input type="checkbox" name="matrix[0][1]" value="1" />" </td>" <"td"="" 1,3="" "="" input="" type="checkbox" name=matrix[0][2] value=1 /"" ""="" td="" tr="" table="" xtml-space:"preserve"" xmlns:xtml-space="http://www." w3corg/xml/1998/namespace"" xmlns_w3corg="/xmlns/" xml:"lang=en-us"" lang=en-us"" http://www."" w3corg/1999xhtml"" xmlns_w3corg="/1999/" html:"xmlns=http://www."" w3corg/" lang=en-us""" class="container">2,1 &"nbsp;" 2,2 "nbsp;" 2," 3 "nbsp;" 3," 1 "nbsp;" 3," 2 "nbsp;" 3," 3 "nbsp;" 4," 1 "nbsp;" 4," 2 "nbsp;" 4," 3 "" nbsp ; "" 5 , "" 1 "" nbsp ; "" 5 , "" 2 "" nbsp ; "" 5 , """ 6 ," """ 7 ," """ 8 ," """ 9 ," """ 10 ," """ 11 ," """ 12 ," """ 13 ," """ 14 , "
rntttt14,2
rn t t t 14
