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I'm new to Django. Please help me with the below.

I have a User form who provides URL1 and URL2.. These URLs need to be passed to another Python script[redirects.py] which will do the Validation to check whether they are in a valid URL format and return the Message to the User.

Now my question is how to write my views.py so as to get this done. I got to know that we can import the redirects.py in my views.py and call it. But I'm not aware of how to print the messages in my browser. Please help. Let me know if any more info is required.

def shortcuts_process(request):
    print request.POST
    return HttpResponse("Source is %s\nDestination is %s" % (request.POST['source'],request.POST['destination']))

Update : This is my script overview. I have got a python script[redirects.py] in my system which accepts Source and Destination URLs. Once accepted, it validates whether they are in URL format, then takes backup, then add them into .htaccess and display the line added to the file. While doing all this, it keeps intimating the User with the information on whats happening in the script.

Now I have made the django to create a web portal which provides the User to input source and Destination. Now i want to call the script from views.py and print all those redirects.py Script output in User's web browser.

Please help me in getting this, I have spent an entire day looking for this answer. Thanks.

Update 2: Please let me know why the below is not getting displayed in my browser

From views.py

def shortcuts_process(request):
 if 'source' in request.POST and 'destination' in request.POST and request.POST['source'] and request.POST['destination']:
            src=request.POST['source']
            desti= request.POST['destination']
            my_result=process_input(src,desti)
            return render_to_response('results.html',{'result': my_result}

From results.html :

<html>    
<head>
This is the result page to User
</head>
<body>
<ul>
{% for each_line in result %}
<p>{{ each_line }}</p>
{% endfor %}
</ul>
<p>
I'm supposed to be printed</p>
</body>
</html>

From browser output :

This is the result page to User

I'm supposed to be printed

From Linux prompt :

[10/Jun/2013 04:41:11] "GET /redirects HTTP/1.1" 200 727 [10/Jun/2013 04:41:14] "GET /choice?selection=shortcuts HTTP/1.1" 200 817 The URL is not in the right format The URL is not in the right format [10/Jun/2013 04:41:18] "POST /shortcuts.conf HTTP/1.1" 200 125

So now my question, why the Message The URL is not in the right format is not getting displayed on browser rather it displays in Linux prompt. Please help. Thanks

share|improve this question
 
you should read up on django form validation –  karthikr Jun 10 at 1:38
 
@karthikr thanks for your reply. django forms help me in validation part, but if it is something else. Say, I have a script to take a file backup, making changes to a file with the inputs provided, how can this be done. All I want is to print the script output in User's browser –  Sathy Jun 10 at 1:52
 
You can do that in the view method itself. Get the form, validate, process it and respond to the request –  karthikr Jun 10 at 2:06
 
I tried with the below. def shortcuts_process(request): if 'source' in request.POST and 'destination' in request.POST and request.POST['source'] and request.POST['destination']: result=take_backup() return render_to_response('result.html', {'result':result}) But I could not see any result in my browser. Rather I can see the information in the Linux prompt[whilst running the manage.py runserver] –  Sathy Jun 10 at 3:14

2 Answers

up vote 0 down vote

Whatever string you want to display in the browser, return it in the HttpResponse.

You could try something like:

#validation.py
def validate(url1, url2):
    # perform validation here
    if valid:
        return "urls are valid"
    else:
        return "urls are invalid"


#views.py
def shortcuts_process(request):
    print request.POST
    url1 = request.POST.get('url1', '')
    url2 = request.POST.get('url2'. '')
    return HttpResponse(validate(url1, url2))

Hope that helps.
For form validation, please refer to Chapter 7 in the django book (http://www.djangobook.com/en/2.0/chapter07.html)

share|improve this answer
 
Thanks krthkr. But how to achieve the below. Say validate() has got two print statements. How do you put both the prints in the browser ? –  Sathy Jun 10 at 7:14
 
Send the data to the template. datadict = {'statement1':'wheels of fortune', 'statement2':'all hail brassica prime'} render_to_response('template.html', datadict) –  limelights Jun 10 at 7:39
 
@limelights this helps if my message is in view.py, so that I can create the template. Here I have got the message in my module. Say validation.py has got print "Validation in progress" .. .. print "URLs are valid" How can this be added into the Template. –  Sathy Jun 10 at 7:45
1  
you can just send the message from your validation.py to your views.py. from validation import validator and then message = validator(url1, url2) and lastly datadict = {....}. –  limelights Jun 10 at 7:46
 
that sound good. Let me try that and come back.. :) Is it not possible to stream these output in the User browser. By this template way, we acquire all the output, put that in the html and then display. so we missing the real time output isn't it. Please correct me if my understanding is wrong. –  Sathy Jun 10 at 7:48
show 4 more comments
up vote 0 down vote

Thanks all.. I managed to get the answer. Rather having my function validate_url to print the values, changing it to return has given me the desired result.

I'm being so dumb to find this out. Failure is the stepping stone of Success !! :O)

share|improve this answer

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