panchicore - Developer IT

"first time here?" message with django

- by panchicore

Hi, Im writing an app that will display the register view depending if is first time visitor. What and How is the better way to do this with Django? thxs.

Examples of "when is good idea implement many-to-many relationships"?

I ask this because need to understand/explain better with examples. clasical examples like: an Article can be published in multiple Publication objects, and a Publication has multiple Article objects. (source) I see is usefull for web2.0 for sharing features.

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wierd FileField url in admin site

- by panchicore

My model class TheFile(models.Model): document = models.FileField(upload_to="archivos") The wierd HTML admin link: <a hacking_google_maps_and_google_earth.pdf="" archivos="" media="" localhost:8000="" http:="" href="" target="_blank">archivos/Hacking_Google_Maps_And_Google_Earth.pdf</a> If I firebug-edit the href="" it works :S

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weird FileField url in admin site

- by panchicore

My model class TheFile(models.Model): document = models.FileField(upload_to="archivos") The weird HTML admin link: <a hacking_google_maps_and_google_earth.pdf="" archivos="" media="" localhost:8000="" http:="" href="" target="_blank">archivos/Hacking_Google_Maps_And_Google_Earth.pdf</a> If I firebug-edit the href="" it works :S

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downloading archives response corrupts files

- by panchicore

wrapper = FileWrapper(file("C:/pics.zip")) content_type = mimetypes.guess_type(result.files)[0] response = HttpResponse(wrapper, content_type=content_type) response['Content-Length'] = os.path.getsize("C:/pics.zip") response['Content-Disposition'] = "attachment; filename=pics.zip" return response pics.zip is a valid file with 3 pictures inside. server response the download, but when I am going to open the zip, winrar says This archive is either in unknown format or damaged! If I change the file path and the file name to a valid image C:/pic.jpg is downloaded damaged too. What Im missing in this download view?

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Examples of use for PickledObjectField (django-picklefield)?

- by panchicore

Hi, surfing on the web, reading about django dev best practices points to use pickled model fields with extreme caution. But in a real life example, where would you use a PickledObjectField, to solve what specific problems?

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how to delete memcached data with "filter" keys ?

- by panchicore

Hi, I just want to delete cached data, but I have many keys, for example: user_54_books user_54_movies user_54_comments user_54_foobar I can write $cache-delete('user_54_books'); but I have to do it with all "user_ID_objects", can I say to memcache, something like delete-('user_54_*'); ? how? thanks :)

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about the post_save signal and created argument

- by panchicore

the docs says: post_save django.db.models.signals.post_save created A boolean; True if a -new- record was create. and I have this: from django.db.models.signals import post_save def handle_new_user(sender, instance, created, **kwargs): print "--------> save() "+str(created) post_save.connect(handle_new_user, sender=User) when I do in shell: u = User(username="cat") u.save() >>> --------> save() True u.username = "dog" u.save() >>> --------> save() True I expect a -------- save() False when I save() the second time because is an update? not?

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