It seems I found a solution (refer to end of this tessage).
Not sure though if there are any drawbacks or if this method of working
could cause any other issues.
On 06/22/2011 02:42 AM, News123 wrote:On 06/22/2011 01:51 AM, News123 wrote:
Hi,
I have a small application running on a host without web server and
without any need for django except its ORM accessing data bases without
explicitely writing sql queries.)
I assume there's many libraries (SQL Alchemy or others), which could do
this job. and which migh have less overhead than django.
As I am already implementing a web server application with django on
another host I wanted to use the same syntax / API for my non web
application.
Now my question:
What would be the minimal setup required to use django orms and nothing
else.
What entries could I remove from settings.py
would I still have to add INSATLLED_APPS to the settings or could I just
write one script
defining only defining settings.DATABASES, and the typical contents of
models.py of an application.
Thanks in advance for some suggestions or ideas how you would approach
writing a tiny non web application with django.db.models.Models
I made a very first brute force test:
settings.py: (only DATABASES is set)
======================================> import os
MYDIR = os.path.abspath(os.path.dirname(__file__))
DATABASES = {
'default' : {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': os.path.join(MYDIR, "tiny.db"),
'HOST': '',
'USER': '',
'PASSWORD': '',
'PORT': '',
}
}
myapp.py
=========> #!/usr/bin/env python
import os
# just set the env prior to importing a django module
os.environ['DJANGO_SETTINGS_MODULE'] = 'settings'
from django.db import models
print "yes this line is executed"
# this will fail :-(
class Mini(models.Model):
name = models.CharField(max_length�)
###############################################
If running myapp.py I get following output:
yes this line is executed
Traceback (most recent call last):
File "./myapp.py", line 11, in <module>
class Mini(models.Model):
File
"/opt/my_python/lib/python2.6/site-packages/Django-1.3-py2.6.egg/django/db/models/base.py",
line 52, in __new__
kwargs = {"app_label": model_module.__name__.split('.')[-2]}
IndexError: list index out of range
(my_python)n1234 at mypc:~/minidjango$
So I need at least a little more to make my script work.
directory structure is now
settings.py
myapp/__init__.py
myapp/models.py
tst.py
settings.py
------------
import os
MYDIR = os.path.abspath(os.path.dirname(__file__))
DATABASES = {
'default' : {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': os.path.join(MYDIR, "tiny.db"),
'HOST': '',
'USER': '',
'PASSWORD': '',
'PORT': '',
}
}
INSTALLED_APPS = (
'myapp',
)
myapp/models.py
----------------
from django.db import models
class Mini(models.Model):
name = models.CharField(max_length�)
tst.py
-------
import os
os.environ['DJANGO_SETTINGS_MODULE'] = 'settings'
import myapp.models as mymodels
for name in ["one", "two", "three"]:
mymodels.Mini(name=name).save()
print mymodels.Mini.objects.all().values()
now I can call syncdb with:
django-admin syncdb --settings=settings --pythonpath=`pwd`
and run my test app with
