> You need to use the GridFS API for this. All you are doing is removing
> the file metadata, not the chunks of binary data. The picture is not
> actually being removed.

> http://api.mongodb.org/python/current/api/gridfs/index.html#gridfs.Gr...

> On Mon, Sep 24, 2012 at 7:13 AM, aliane abdelouahab

> <alabdeloua...@gmail.com> wrote:
> > i got a bug in my application; if i upload TWO products, it's okey
> > when i delete one of them, but if i upload THREE i got an error from
> > GridFS telling me that the removed ID dont exists (and this is what i
> > wanted???)

> > here is the code:

> > class VentesHandler(BaseHandler):
> >     @tornado.web.authenticated
> >     def get(self):
> >         user = self.get_secure_cookie("mechtari")
> >         info = tornado.escape.json_decode(user)
> >         email = info["personnel"]["email"]
> >         try:
> >             produits = self.db.users.find({"personnel.email":email},
> > {"produit_up":1,"_id":0}).distinct("produit_up")
> >             renderer = self.fs
> >         except (errors.AutoReconnect, errors.ConnectionFailure):
> >                 self.redirect("/error")
> >         try:
> >             self.render("ventes.html", produits=produits,
> > renderer=renderer)
> >         except gridfs.errors.NoFile, e:
> >             self.write(str(e))

> > class Supprimer(BaseHandler):
> >     @tornado.web.authenticated
> >     def post(self):
> >         debut = time.clock()
> >         prod = self.get_arguments("supprime")
> >         produ = prod[0][:]
> >         idd = self.db.users.find_one({"produit_up.spec.id":produ})
> > ["produit_up"][0["avatar"]["photo"]
> >         try:
> >             self.db.users.update({"produit_up.spec.id":produ},
> > {"$pull":{"produit_up"{"spec.id":produ}}})

> > self.db.fs.files.remove({"_id":ObjectId('{0}'.format(idd))})
> >         except (errors.AutoReconnect, errors.ConnectionFailure):
> >                 self.redirect("/error")
> >     self.redirect("/ventes") # this will redirect to the first code.

> > and the template:

> > {% for produit in produits %}
> > <div class="produit">
> > <span class="nom">Le nom du produit: {{produit["spec"]["namep"]}}</
> > span>
> > {% from bson import ObjectId %}
> > {% if produit["avatar"]["orientation"]=="portrait" %}
> > <span><img src="/{{renderer.get(ObjectId(produit["avatar"]
> > ["photo"])).filename}}"height="250px" class="imag">
> > {% else %}
> > <span><img src="/{{renderer.get(ObjectId(produit["avatar"]
> > ["photo"])).filename}}"width="250px"class="imag">
> > {% end %}
> > <div class="supprimer" >
> > <form name="supprimer" class="supprimer" method="post" action="/
> > supprimer">
> > {% raw xsrf_form_html() %}
> > <input type="hidden" value="{{produit["spec"]["id"]}}" name="supprime"/

> > <input type="submit" value="SUPPRIMER!"/>
> > </form>
> > </div>

> > as you can see, this two lines:

> > self.db.users.update({"produit_up.spec.id":produ}, {"$pull":
> > {"produit_up{"spec.id":produ}}})
> > self.db.fs.files.remove({"_id":ObjectId('{0}'.format(idd))})

> > the first one deletes the object, the second one clean its picture
> > from GridFS, but if there is more than one, it will make an error, for
> > example if i delete the object with
> > ObjectId('5060384f3a5f3a09488f7384') then i get an error when i'll be
> > redirected:

> > no file in gridfs collection
> > Collection(Database(Connection('localhost', 27017), u'essog'),
> > u'fs.files') with _id ObjectId('5060384f3a5f3a09488f7384')

> > and here is the link to stackoverflow (formatted):

> >http://stackoverflow.com/questions/12563503/how-to-delete-an-element-...

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