Wednesday, August 31, 2011

Re: Unable To Delete Records

Thanks Alotttttttttttttttt....

On Aug 30, 4:34 pm, Daniel Molina Wegener <d...@coder.cl> wrote:
> On Tuesday 30 August 2011,
>
> Showket Bhat <scorpion.sch...@gmail.com> wrote:
> > Hi All...
>
>   Hello Showket...
>
>
>
> > I have created a small application where in i am inserting and
> > deleting records. I am able to delete a single record however when a
> > select all or more then one record it deletes the last record only.. I
> > tried a lot but failed please help I am wring the Code and the Console
> > output here....
>
>   Probably you should try using:
>
>      m = Medecine.objects.get(pk = i)
>
>   Instead of using:
>
>      m = Medecine.objects.get(id = i)
>
>   Also, try to handle the DoesNotExist and similar exception once you
> try to retrieve the object using the /get()/ method. Also you can
> reduce the look by using:
>
>     del_ids = request.POST.getlist('del_id')
>     Medecine.objects.filter(id__in = del_id).delete()
>
>   Which should be faster than your loop.
>
>
>
>
>
> > ===========================================
> > my function to delete a medecine from its table  in views.py
> > ===========================================
>
> > def delete_medecine(request,medecine={}):
> >     print "------>>",request.POST
> >     list = []
> >     for i in request.POST['del_id']:
> >         m = Medecine.objects.get(id = i)
> >         m.delete()
> >     return HttpResponseRedirect('/medecine')
>
> > ==============================================
> > my template file
>
> > <form action="/delete_medecine/" name = "medecines" method = "POST">
> > <table cellspacing="0" cellpadding="0" border="0"><!-- Table -->
>
> >     <thead>
> >         <tr>
> >             <th><input type="checkbox" class="checkall" /></th>
> >             <th>SNo.</th>
> >             <th>Name</th>
> >             <th>Price</th>
> >             <th>Quantity</th>
> >             <th>Exp. Date</th>
> >             <th>Description</th>
> >         </tr>
> >     </thead>
>
> >     <tbody>
> >         {% for single in medecine_obj%}
> >             <tr>
> >                 <td><input type="checkbox" value="{{single.id}}"  name
> > = "del_id" /></td>
> >                 <td>{{single.id}}</td>
> >                 <td>{{single.name}}</td>
> >                 <td>{{single.price}}</td>
> >                 <td>{{single.exp_date}}</td>
> >                 <td>{{single.discription}}</td>
> >                 <td><a href="#"><img src="/login/media/assets/
> > action_check.png" alt="Check" /></a><a href="/delete_medecine/"><img
> > src="/login/media/assets/action_delete.png" alt="Delete" /></a><a
> > href="#"><img src="/login/media/assets/letter.png" alt="Letter" /></
> > a></td>
> >             </tr>
> >         {%endfor%}
> >     </tbody>
> >     <a href="/medecine_form/"><input type = "button" name = "add"
> > value = "    Add Record    " alt="Add" /></a>
> >     <input type = "submit" name = "delete" value = "Delete Records"
> > alt="Delete" />
>
> > </table>
> > </form>
>
> > ===========================
> > My Console
> > ===========================
>
> > /usr/local/lib/python2.6/dist-packages/django/middleware/csrf.py:262:
> > DeprecationWarning: CsrfResponseMiddleware and CsrfMiddleware are
> > deprecated; use CsrfViewMiddleware and the template tag instead (see
> > CSRF documentation).
> >   DeprecationWarning
> > ================================== <QueryDict:
> > {u'csrfmiddlewaretoken': [u'fea796e4bc7836bb8584140b71a0afcc'],
> > u'del_id': [u'1', u'2', u'8'], u'delete': [u'Delete Records']}>
> > ===== 8
> > [30/Aug/2011 06:04:56] "POST /delete_medecine/ HTTP/1.1" 302 0
>
> > ==============
>
> > Please help
>
> Best regards,
> --
> Daniel Molina Wegener <dmw [at] coder [dot] cl>
> System Programmer & Web Developer
> Phone: +56 (2) 979-0277 | Blog:http://coder.cl/

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