django-orchestra/orchestra/apps/databases/models.py

104 lines
3.5 KiB
Python

import hashlib
from django.db import models
from django.utils.translation import ugettext_lazy as _
from orchestra.core import validators, services
from . import settings
class Database(models.Model):
""" Represents a basic database for a web application """
MYSQL = 'mysql'
POSTGRESQL = 'postgresql'
name = models.CharField(_("name"), max_length=64, # MySQL limit
validators=[validators.validate_name])
users = models.ManyToManyField('databases.DatabaseUser',
verbose_name=_("users"),related_name='databases')
# through='databases.Role',
type = models.CharField(_("type"), max_length=32,
choices=settings.DATABASES_TYPE_CHOICES,
default=settings.DATABASES_DEFAULT_TYPE)
account = models.ForeignKey('accounts.Account', verbose_name=_("Account"),
related_name='databases')
class Meta:
unique_together = ('name', 'type')
def __unicode__(self):
return "%s" % self.name
@property
def owner(self):
""" database owner is the first user related to it """
# Accessing intermediary model to get which is the first user
users = Database.users.through.objects.filter(database_id=self.id)
return users.order_by('-id').first().databaseuser
Database.users.through._meta.unique_together = (('database', 'databaseuser'),)
#class Role(models.Model):
# database = models.ForeignKey(Database, verbose_name=_("database"),
# related_name='roles')
# user = models.ForeignKey('databases.DatabaseUser', verbose_name=_("user"),
# related_name='roles')
## is_owner = models.BooleanField(_("owner"), default=False)
#
# class Meta:
# unique_together = ('database', 'user')
#
# def __unicode__(self):
# return "%s@%s" % (self.user, self.database)
#
# @property
# def is_owner(self):
# return datatase.owner == self
#
# def clean(self):
# if self.user.type != self.database.type:
# msg = _("Database and user type doesn't match")
# raise validators.ValidationError(msg)
# roles = self.database.roles.values('id')
# if not roles or (len(roles) == 1 and roles[0].id == self.id):
# self.is_owner = True
class DatabaseUser(models.Model):
MYSQL = 'mysql'
POSTGRESQL = 'postgresql'
username = models.CharField(_("username"), max_length=16, # MySQL usernames 16 char long
validators=[validators.validate_name])
password = models.CharField(_("password"), max_length=256)
type = models.CharField(_("type"), max_length=32,
choices=settings.DATABASES_TYPE_CHOICES,
default=settings.DATABASES_DEFAULT_TYPE)
account = models.ForeignKey('accounts.Account', verbose_name=_("Account"),
related_name='databaseusers')
class Meta:
verbose_name_plural = _("DB users")
unique_together = ('username', 'type')
def __unicode__(self):
return self.username
def get_username(self):
return self.username
def set_password(self, password):
if self.type == self.MYSQL:
# MySQL stores sha1(sha1(password).binary).hex
binary = hashlib.sha1(password).digest()
hexdigest = hashlib.sha1(binary).hexdigest()
self.password = '*%s' % hexdigest.upper()
else:
raise TypeError("Database type '%s' not supported" % self.type)
services.register(Database)
services.register(DatabaseUser, verbose_name_plural=_("Database users"))