CODEWITHSUNDEEP
pythonajaxdjango
rabbid
rabbid

Reputation: 5725

Django AJAX increment

I am simply trying to create a button or link in Django that when clicked will increment a model.IntegerField, but so far have been awfully confused. I understand that I must AJAX-ify this process. I tried using Dajaxice

but ended up running into many troubles.

What is the accepted way to do this? Thanks!

So far I'm just following Dajaxice's tutorial.

My base.html:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML Transitional//EN"

"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> {% load dajaxice_templatetags %}

My Blog {% dajaxice_js_import %}

    <script type="text/javascript">
        function my_js_callback(data){
            if(data==Dajaxice.EXCEPTION){
                alert('Error! Something happens!');
            } else {
                alert(data.message);
            }
        }
    </script>
</head>
<body>
    <h1><a href=””>My Blog</a></h1>
    {% block content %}{% endblock %}
</body>

Within that block content I have <a href="" onclick="Dajaxice.example.myexample(my_js_callback);">Click me!</a>

this code {% dajaxice_js_import %} generates <script src="/dajaxice/dajaxice.core.js" type="text/javascript" charset="utf-8"></script> which is just http://localhost:8000/dajaxice/dajaxice.core.js

So far the problem is that that file can not be found, and yet I have placed it under /templates/dajaxice/

Not sure what to do. Thanks!

Edit after mention of static files

So it looks like I am not placing my static files correctly. I followed the instructions atDjango's docs how to serve static files

Let me know if I did this right. I have created a folder "static" under "myProject/static". I have placed my JS files within static/ For example "myProject/static/prototype.js"

I also have STATIC_URL='static' and 'django.contrib.staticfiles', in INSTALLED_APPS

I now try to grab prototype.js using <script type="text/javascript" src="{{ STATIC_URL }}prototype.js"/>but still no avail...

What am I doing wrong now? Thank you! *Edit:*looks like /static/ should be inside the app folder. How confusing...

Upvotes: 1

Views: 823

Answers (1)

bradley.ayers
bradley.ayers

Reputation: 38382

Remember to do it atomicly:

# models.py
class Page(models.Model):
    hits = models.PositiveIntegerField()

# views.py
def hit(request, page_pk):
    Page.objects.filter(pk=page_pk).update(hits=F('hits')+1)
    return HttpResponse()

…or use a transaction:

# views.py
from django.db.decorators import commit_on_success

@commit_on_success
def hit(request, page_pk):
    page = Page.objects.filter(pk=page_pk)
    page.hits += 1
    page.save()
    return HttpResponse()

Upvotes: 2

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