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=80)
>
>
>
>
> ###############################################
> 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@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=80)
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
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