Files
mayan-edms/apps/app_registry/models.py
2012-09-07 02:04:00 -04:00

105 lines
3.8 KiB
Python

from __future__ import absolute_import
import datetime
import logging
import imp
import sys
from django.db import models
from django.db import DatabaseError, transaction
from django.utils.translation import ugettext_lazy as _
from django.utils.translation import ugettext
from django.contrib.contenttypes.models import ContentType
from django.contrib.contenttypes import generic
from django.utils.importlib import import_module
from common.models import TranslatableLabelMixin, LiveObjectMixin
from smart_settings import SettingsNamespace
from project_setup.api import register_setup
from project_tools.api import register_tool
#from .classes import AppBackup, StorageModuleBase, Setting
logger = logging.getLogger(__name__)
class App(TranslatableLabelMixin, LiveObjectMixin, models.Model):
translatables = ['label', 'description', 'icon']
#class UnableToRegister(Exception):
# pass
name = models.CharField(max_length=64, verbose_name=_(u'name'), unique=True)
dependencies = models.ManyToManyField('self', verbose_name=_(u'dependencies'), symmetrical=False, blank=True, null=True)
#version
#top_urls
#namespace
@classmethod
@transaction.commit_on_success
def register(cls, app_name):
try:
app_module = import_module(app_name)
except ImportError:
transaction.rollback
else:
try:
registration = import_module('%s.registry' % app_name)
except ImportError:
transaction.rollback
else:
disabled = getattr(registration, 'disabled', False)
name = getattr(registration, 'name')
label = getattr(registration, 'label')
icon = getattr(registration, 'icon', None)
description = getattr(registration, 'description', None)
dependencies = getattr(registration, 'dependencies', [])
settings = getattr(registration, 'settings', None)
setup_links = getattr(registration, 'setup_links', [])
tool_links = getattr(registration, 'tool_links', [])
if not disabled:
try:
app, created = App.objects.get_or_create(name=name)
except DatabaseError:
transaction.rollback()
raise cls.UnableToRegister
else:
app.label = label
if description:
app.description = description
app.dependencies.clear()
app.save()
app.icon = icon
for app_name in dependencies:
dependency = App.objects.get(name=app_name)
app.dependencies.add(dependency)
if settings:
settings_module = imp.new_module('settings')
setattr(app_module, 'settings', settings_module)
sys.modules['%s.settings' % name] = settings_module
settings_namespace = SettingsNamespace(name, label, '%s.settings' % name)
for setting in settings:
settings_namespace.add_setting(**setting)
for link in setup_links:
register_setup(link)
for link in tool_links:
register_tool(link)
#def set_backup(self, *args, **kwargs):
# return AppBackup(self, *args, **kwargs)
def __unicode__(self):
return unicode(self.label)
class Meta:
ordering = ('name', )
verbose_name = _(u'app')
verbose_name_plural = _(u'apps')