'Reverse for `view` with arguments '('',)' not found. 1 pattern(s) tried: `[u'bms/update/(?P<id>[0-9]+)/$']`
This is my update view which I'm using to get pre-populated form. Although this is also not working.
def update(request, id):
item = get_object_or_404(BookEntry, id=id)
if request.method=="POST":
form = UpdateForm(request.POST, instance=item)
if form.is_valid():
post=form.save(commit=False)
post.save()
return HttpResponseRedirect(reverse('bms:index'), id)
else:
form=EntryForm(instance=item)
return HttpResponseRedirect(reverse('bms:index'), id)
return render(request, 'index.html', {'form':form})
This is my urls.py
url(r'^update/(?P<id>[0-9]+)/$', views.update, name='update'),
This is the error that I'm getting again and again:
NoReverseMatch at /bms/ Reverse for 'update' with arguments '('',)' not found. 1 pattern(s) tried: [u'bms/update/(?P[0-9]+)/$']
I'm not sure if passing the url in right way. This is what i'm doing:
<form action="{% url 'bms:update' book.id %}" id="updateform" name="updateform" method="POST">
When I look at traceback, it's showing something's wrong in above line and this line:
return render(request, "bms/index.html", context)
This is my index view:
def index(request):
context = {}
book_detail = BookEntry.objects.all()
context.update({
'book_detail': book_detail
})
response = {"status": False, "errors": []}
if request.is_ajax():
id = request.POST['id']
csrf_token = request.POST['csrfmiddlewaretoken']
response = {}
response['status'] = False
book = BookEntry.objects.filter(id=id).first()
context = {
"book": book,
"csrf_token": csrf_token
}
template = render_to_string("bms/index.html", context)
response['template'] = template
response['status'] = True
return HttpResponse(json.dumps(response), content_type="applicaton/json")
return render(request, "bms/index.html", context)
My index.html:
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
<link rel="stylesheet" type="text/css" href="//fonts.googleapis.com/css?family=Raleway">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdn.jsdelivr.net/jquery.validation/1.15.1/jquery.validate.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<script>
function update_entry(id) {
var id = id
$.ajax({
url: "{% url 'bms:index' %}",
type: "POST",
data:{
'csrfmiddlewaretoken': '{{ csrf_token }}',
'id' : id,
},
success: function(response){
$("#updateform").modal("show");
}
});
}
function update_property(id) {
window.location.replace("/bms/update" + id+"/");
}
</script>
<style>
body{
font-family: Raleway;
}
</style>
</head>
<body>
<div class="container">
<div class="page-header">
<h1>Details of Books</h1>
</div>
<table class = "table table-bordered table-hover">
<tr>
<th>S No.:</th>
<th>Title:</th>
<th>Author:</th>
<th>Edition:</th>
<th>Publisher:</th>
<th>Genre:</th>
<th>Detail:</th>
<th>Language:</th>
<th>Price:</th>
<th>ISBN:</th>
<th>Action:</th>
</tr>
{% for item in book_detail %}
<tr>
<td>{{ forloop.counter }}</td>
<td>{{ item.title }}</td>
<td>{{ item.author }}</td>
<td>{{ item.edition }}</td>
<td>{{ item.publisher }}</td>
<td>{{ item.genre }}</td>
<td>{{ item.detail }}</td>
<td>{{ item.language }}</td>
<td>{{ item.price }}</td>
<td>{{ item.isbn }}</td>
<td>
<a data-href="bms:update({{item.id}})" onclick="update_entry({{item.id}})" class="btn btn-warning" data-toggle="modal">
<span class = "glyphicon glyphicon-pencil"></span> Edit
</a>
</td>
</tr>
{% endfor %}
</table>
<div class="modal fade" id="updateform" role="dialog">
<div class="modal-dialog">
<div class = "modal-content">
<div class = "modal-header">
<button type = "button" class = "close" data-dismiss="modal">×</button>
<h3 class="modal-title">
<b>Update Details</b>
</h3>
</div>
<div class = "modal-body">
<form action="{% url 'bms:update' book.id %}" id="updateform" name="updateform" method="POST">
{% csrf_token%}
<div class = "form-group">
<label for = "title">
Title:
</label>
<input class = "form-control" id="book_title" type = "text" name="title" value="{{ book.title }}">
</div>
<div class="form-group">
<label for = "author">
Author:
</label>
<input id="book_author" class = 'form-control' type = "text" name="author" value="{{ book.author }}">
</div>
<div class = "form-group">
<label for = "edition">
Edition:
</label>
<input id="book_edition" type = "text" class = 'form-control' name="edition" value="{{ book.edition }}">
</div>
<div class = "form-group">
<label for ="publisher">
Publisher:
</label>
<input id="book_publisher" type = "text" name="publisher" class = 'form-control' value="{{ book.publisher }}"/>
</div>
<div class = "form-group">
<label for ="genre">
Genre:
</label>
<input id="book_genre" type = "text" name="genre" class = 'form-control' value="{{ book.genre }}"/>
</div>
<div class = "form-group">
<label for ="language">
Language:
</label>
<input id="book_language" type = "text" name="language" class = 'form-control' value="{{ book.language }}"/>
</div>
<div class = "form-group">
<label for ="price">
Price:
</label>
<input id="book_price" type = "text" name="price" class = 'form-control' value="{{ book.price }}"/>
</div>
<div class = "form-group">
<label for ="isbn">
ISBN:
</label>
<input id="book_isbn" type = "text" name="isbn" class = 'form-control' value="{{ book.isbn }}"/>
</div>
<input type = "submit" value="Update" id="update" class = "btn btn-success" style="font-size:18px;" />
</form>
</div>
</div>
</div>
</div>
</div>
</body>
</html>
Solution 1:[1]
Does the BookEntry model have a primary key column? I started having the same error when I added a primary key field on the model the id was referencing. Apparently the id column is replaced by the primary key field. I removed the key and migrated the changes.The error is gone now.
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
| Solution | Source |
|---|---|
| Solution 1 | AfriPwincess |