graphs your django model instances with munin

munin-django-models.py

#!/usr/bin/python
#
# Author : Julien Bouquillon (julien@bouquillon.com) - revolunet team
#
# this munin plugin generate graphs with evolution of all registered django models
# install : copy, chmod +x then ln -s in /etc/munin/plugins
#

# project root
import sys
BASE_DIR = '/home/django/quickprez_vhosts/beta/djangoapp'
sys.path.insert(0, BASE_DIR)

import settings
sys.path.insert(0, settings.DJANGO_SOURCE)

# setup environ
from django.core.management import setup_environ
setup_environ(settings)



def iterateModels():
    from django.db.models.loading import cache
    for app in cache.get_apps():
        app_label = app.__name__.split('.')[-2]
        for model in cache.get_models( app ):
            #print app_label, model.__name__
            yield app, model

def run():
    apps = {}
    for app, model in iterateModels():
        app_label = app.__name__.split('.')[-2]
        if not apps.has_key( app_label ):
            apps[app_label] = {}
        apps[app_label][model.__name__ ] = 0
        nb = model.objects.count()
        print "%s_%s.value %s" % (app_label, model.__name__ , nb)

run()

if len(sys.argv)==2 and sys.argv[1] == 'config':
    import os
    bname = os.path.basename(sys.argv[0])
    print """graph_title Django models %s
graph_vlabel count
graph_category Django
graph_info Stats Django models %s""" % (bname, bname)
    for app, model in iterateModels():
        app_label = app.__name__.split('.')[-2]
        print "%s_%s.label %s_%s" % (app_label, model.__name__, app_label, model.__name__)
        print "%s_%s.info %s_%s count" % (app_label, model.__name__, app_label, model.__name__)