nbv4 posted:

Words.

NerftheSmurf posted:

Anyone have any experience with using Django with Google App Engine? For my first Django app, I'm writing a small webapp for my company. With app-engine-patch it's not too bad, as I get the admin interface, which was really great in selling my boss/coworkers on the project who otherwise couldn't care less about python webapps. Also it's completely free, which is nice in lean times.

Working around some of the datastore limitations can be a bit annoying but overall it's been pretty alright.

Hanpan posted:

I want to expand on the ImageField functionality of django. Mainly, I want to check the dimensions of the image the user is upload, and resize / crop where appropriate. I would also like to set compression amount, and perhaps even allow for watermarking. I know there are several libraries out there that do this, but I want to keep it as lightweight as possible.

It seems to me the best way to do this would be to create a custom field type, so I could do something like this in my model:

image_tb = models.CustomImageField("Thumbnail Image", upload_to ='uploads/projects', size=(50, 50), compression="60", watermark="path/to/watermark.png")

Firstly, I have absolutely no idea if this is the best way of doing things. Is it easier to create a custom field or perhaps hijack the save method? If it is the best method, does anyone have any really simple examples of creating a custom field? Most of the stuff online is incredibly complicated.

Secondly, if I was to create a custom field, is there a way to extend ImageField so I don't have to mess with the admin panel code and keep the core functionality in place?

Would really appreciate any help.

Hanpan posted:

I want to expand on the ImageField functionality of django. Mainly, I want to check the dimensions of the image the user is upload, and resize / crop where appropriate. I would also like to set compression amount, and perhaps even allow for watermarking. I know there are several libraries out there that do this, but I want to keep it as lightweight as possible.

It seems to me the best way to do this would be to create a custom field type, so I could do something like this in my model:

image_tb = models.CustomImageField("Thumbnail Image", upload_to ='uploads/projects', size=(50, 50), compression="60", watermark="path/to/watermark.png")

Firstly, I have absolutely no idea if this is the best way of doing things. Is it easier to create a custom field or perhaps hijack the save method? If it is the best method, does anyone have any really simple examples of creating a custom field? Most of the stuff online is incredibly complicated.

Secondly, if I was to create a custom field, is there a way to extend ImageField so I don't have to mess with the admin panel code and keep the core functionality in place?

Would really appreciate any help.

nbv4 posted:

Whoa whoa whoa, you know you can just give a formset a queryset and be done with it.

code:

peroids = Peroid.objects.filter(user=request.user)
PeroidFormset = modelformset_factory(Peroid)
formset = PeroidFormset(queryset=peroids)

then when you want to save it, you can just do:

code:

peroids = Peroid.objects.filter(user=request.user)
PeroidFormset = modelformset_factory(Peroid)
formset = PeroidFormset(request.POST, queryset=peroids)

if formset.is_valid():
    formset.save()

...aaaand your done

jupo posted:

By any chance have you overridden the save method on your Appointment model without calling super(Appointment, self).save() ?

Jo posted:

Not that I'm aware.

code:

class Appointment( models.Model ):
	"""Stores a single appointment."""

(These CHOICES removed to protect the innocent.)

	slotOpen = models.BooleanField()
	advisor = models.CharField( max_length=2, choices=ADVISOR_CHOICES )
	datetime = models.DateTimeField( primary_key=True, unique=True)
	user = models.CharField( max_length=8 )
	firstName = models.CharField( max_length=100 )
	lastName = models.CharField( max_length=100 )
	email = models.CharField( max_length=200 )
	reason = models.TextField()
	status = models.CharField( max_length=2, choices=YEAR_IN_SCHOOL_CHOICES )

	def __init__( self, advisorAbbreviation, dateAndTime ):
		self.slotOpen = True
		self.advisor = advisorAbbreviation
		self.datetime = dateAndTime
		self.user = ""
		self.firstName = ""
		self.lastName = ""
		self.email = ""
		self.reason = ""
		self.status = "NA"

	def __unicode__( self ):
		return "Appointment with " + self.lastName + "," + self.firstName + " at " + str(self.datetime)

Hanpan posted:

Another absolutely retarded question:

Is there a way to exclude fields form a query set? I am putting my result straight into JSON, and I am I trying to exclude a "tags" ManyToMany field from my model since I don't need it and it will hit the database unnecessarily. I have tried this:

code:

projects = Projects.objects.category(slug).exclude(tags)

But obviously it doesn't work. Is there a way to do this?

nbv4 posted:

jupo posted:

jupo posted:

Try this

code:

<Location "/media/">
    SetHandler None
</Location>  

You'll also want to point settings.MEDIA_ROOT to the media directory for your project, not django.

bosko posted:

MEDIA_ROOT is used for Django-uploaded files. You don't really use it to tell Django where your media is located. You do use MEDIA_URL as a way to use the {{ MEDIA_URL }} variable throughout your templates though.

Basically, to serve media from Apache you need to tell Apache to ignore your media directory as non-Python code, e.g:

code:

<Location "/media">
    SetHandler None
</Location>

At this point, you should have a `media` directory in your projects root. If it is not in your projects root, your best bet is to usually alias the media to somewhere else. So within your project root, create a symbolic link named `media` to wherever you are placing it.

Basically, when it comes down to it the MEDIA_ROOT variable is not used at all to serve media, just for upload paths. Apache/nginx/the Django devserver is in charge of serving the media by setting up the correct paths.

LOLLERZ posted:

This is kind of an Apache/WSGI problem, but I'm trying to deploy Django, and I thought maybe someone here would have seen this before:

I'm on WinXP and when I run net start apache I get the following error message in Event Viewer:

code:

The Apache service named  reported the following error:
>>> httpd.exe: Syntax error on line 3 of 
C:/Program Files/Apache2.2/conf/httpd.conf: 
Cannot load C:/Program Files/Apache2.2/modules/mod_wsgi.so
into server: The specified module could not be found.

For reference, the relevant part of my httpd.conf is

code:

ServerRoot "C:/Program Files/Apache2.2"
Listen 80
LoadModule wsgi_module modules/mod_wsgi.so
LoadModule actions_module modules/mod_actions.so
LoadModule alias_module modules/mod_alias.so

I think it's some kind of permissions issue, but I can't figure out how to prove that.

deimos posted:

Silly question but does the file exist?

LOLLERZ posted:

That's a perfectly reasonable question, but yes, I have the correct file for my major/minor version of Python, and for my install of Apache, and it's named correctly. It's in the same location as all the other mod_whatever.so files.

deimos posted:

well if you renamed it to mod_wsgi.so and placed it in the right directory then check windows permissions for the other .so files and compare it to your mod_wsgi.so

JammyB posted:

I'm looking for a little advice on deploying some Django websites to an Ubuntu Server.