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bb874b690a
git-svn-id: http://code.djangoproject.com/svn/django/branches/magic-removal@1716 bcc190cf-cafb-0310-a4f2-bffc1f526a37
79 lines
2.2 KiB
Python
79 lines
2.2 KiB
Python
from django.conf import settings
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from django.core import formfields, validators
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from django.db import backend, connection
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from django.utils.functional import curry
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from django.utils.text import capfirst
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from django.db.models.loading import get_installed_models, get_installed_model_modules
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from django.db.models.query import Q
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from django.db.models.manager import Manager
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from django.db.models.base import Model
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from django.db.models.fields import *
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from django.db.models.fields.related import *
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from django.core.exceptions import ObjectDoesNotExist, ImproperlyConfigured
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from django.db.models.exceptions import FieldDoesNotExist, BadKeywordArguments
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from django.db.models.signals import Signals
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# Admin stages.
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ADD, CHANGE, BOTH = 1, 2, 3
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#def get_module(app_label, module_name):
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# return __import__('%s.%s.%s' % (MODEL_PREFIX, app_label, module_name), '', '', [''])
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def get_models(app):
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models = []
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get_models_helper(app, models)
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return models
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def get_models_helper(mod, seen_models):
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if hasattr(mod, '_MODELS'):
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seen_models.extend(mod._MODELS)
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if hasattr(mod, '__all__'):
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for name in mod.__all__:
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sub_mod = __import__("%s.%s" % (mod.__name__, name), '','',[''])
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get_models_helper(sub_mod, seen_models)
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def get_app(app_label):
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for app_name in settings.INSTALLED_APPS:
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comps = app_name.split('.')
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if app_label == comps[-1]:
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app_models = __import__('%s.models' % app_name , '','',[''])
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return app_models
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raise ImproperlyConfigured, "App with label %s could not be found" % app_name
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class LazyDate:
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"""
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Use in limit_choices_to to compare the field to dates calculated at run time
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instead of when the model is loaded. For example::
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... limit_choices_to = {'date__gt' : meta.LazyDate(days=-3)} ...
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which will limit the choices to dates greater than three days ago.
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"""
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def __init__(self, **kwargs):
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self.delta = datetime.timedelta(**kwargs)
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def __str__(self):
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return str(self.__get_value__())
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def __repr__(self):
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return "<LazyDate: %s>" % self.delta
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def __get_value__(self):
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return datetime.datetime.now() + self.delta
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