from django.db import models from django.utils.functional import cached_property from django.utils.translation import ugettext_lazy as _ from orchestra.core import services from orchestra.core.translations import ModelTranslation from orchestra.core.validators import validate_name from orchestra.models.fields import NullableCharField class MiscService(models.Model): name = models.CharField(_("name"), max_length=32, unique=True, validators=[validate_name], help_text=_("Raw name used for internal referenciation, i.e. service match definition")) verbose_name = models.CharField(_("verbose name"), max_length=256, blank=True, help_text=_("Human readable name")) description = models.TextField(_("description"), blank=True, help_text=_("Optional description")) has_identifier = models.BooleanField(_("has identifier"), default=True, help_text=_("Designates if this service has a unique text field that " "identifies it or not.")) has_amount = models.BooleanField(_("has amount"), default=False, help_text=_("Designates whether this service has amount " "property or not.")) is_active = models.BooleanField(_("active"), default=True, help_text=_("Whether new instances of this service can be created " "or not. Unselect this instead of deleting services.")) def __unicode__(self): return self.name def clean(self): self.verbose_name = self.verbose_name.strip() def get_verbose_name(self): return self.verbose_name or self.name class Miscellaneous(models.Model): service = models.ForeignKey(MiscService, verbose_name=_("service"), related_name='instances') account = models.ForeignKey('accounts.Account', verbose_name=_("account"), related_name='miscellaneous') identifier = NullableCharField(_("identifier"), max_length=256, null=True, unique=True, help_text=_("A unique identifier for this service.")) description = models.TextField(_("description"), blank=True) amount = models.PositiveIntegerField(_("amount"), default=1) is_active = models.BooleanField(_("active"), default=True, help_text=_("Designates whether this service should be treated as " "active. Unselect this instead of deleting services.")) class Meta: verbose_name_plural = _("miscellaneous") def __unicode__(self): return self.identifier or self.description[:32] or str(self.service) @cached_property def active(self): try: return self.is_active and self.account.is_active except type(self).account.field.rel.to.DoesNotExist: return self.is_active def get_description(self): return ' '.join((str(self.amount), self.service.description or self.service.verbose_name)) @cached_property def service_class(self): return self.service def clean(self): if self.identifier: self.identifier = self.identifier.strip() self.description = self.description.strip() services.register(Miscellaneous) ModelTranslation.register(MiscService, ('verbose_name',))