Deprecate ShowTextWidget and ReadOnlyWidget0

TODO.md

@@ -280,17 +280,15 @@ https://code.djangoproject.com/ticket/24576
 # bill.totals make it 100% computed?
 * joomla: wget https://github.com/joomla/joomla-cms/releases/download/3.4.1/Joomla_3.4.1-Stable-Full_Package.tar.gz -O - | tar xvfz -
 
-# replace multichoicefield and jsonfield by ArrayField, HStoreField
+
+# bill confirmation: show total
 # Amend lines???
 
 # Determine the difference between data serializer used for validation and used for the rest API!
 # Make PluginApiView that fills metadata and other stuff like modeladmin plugin support
 
-# @classmethods do not need to be called with type(object)!
-
-# Deprectae widgets.showtext and readonlyField by ReadOnlyFormMixin
-
 # custom validation for settings
 # TODO orchestra related services code reload: celery/uwsgi reloading find aonther way without root and implement reload
 # insert settings on dashboard dynamically
 
+# convert all complex settings to string

orchestra/admin/forms.py

@@ -7,7 +7,7 @@ from django.forms.models import modelformset_factory, BaseModelFormSet
 from django.template import Template, Context
 from django.utils.translation import ugettext_lazy as _
 
-from orchestra.forms.widgets import ShowTextWidget, ReadOnlyWidget
+from orchestra.forms.widgets import SpanWidget
 
 from ..core.validators import validate_password
 
@@ -71,10 +71,10 @@ class AdminPasswordChangeForm(forms.Form):
         self.user = user
         super(AdminPasswordChangeForm, self).__init__(*args, **kwargs)
         for ix, rel in enumerate(self.related):
-            self.fields['password1_%i' % ix] = forms.CharField(
+            self.fields['password1_%i' % ix] = forms.CharField(label=_("Password"),
-                    label=_("Password"), widget=forms.PasswordInput, required=False)
+                widget=forms.PasswordInput, required=False)
-            self.fields['password2_%i' % ix] = forms.CharField(
+            self.fields['password2_%i' % ix] = forms.CharField(label=_("Password (again)"),
-                    label=_("Password (again)"), widget=forms.PasswordInput, required=False)
+                widget=forms.PasswordInput, required=False)
             setattr(self, 'clean_password2_%i' % ix, partial(self.clean_password2, ix=ix))
     
     def clean_password2(self, ix=''):
@@ -139,8 +139,7 @@ class AdminPasswordChangeForm(forms.Form):
 class SendEmailForm(forms.Form):
     email_from = forms.EmailField(label=_("From"),
         widget=forms.TextInput(attrs={'size': '118'}))
-    to = forms.CharField(label="To", required=False,
+    to = forms.CharField(label="To", required=False)
-            widget=ShowTextWidget())
     extra_to = forms.CharField(label="To (extra)", required=False,
         widget=forms.TextInput(attrs={'size': '118'}))
     subject = forms.CharField(label=_("Subject"),
@@ -152,7 +151,7 @@ class SendEmailForm(forms.Form):
         super(SendEmailForm, self).__init__(*args, **kwargs)
         initial = kwargs.get('initial')
         if 'to' in initial:
-            self.fields['to'].widget = ReadOnlyWidget(initial['to'])
+            self.fields['to'].widget = SpanWidget(original=initial['to'])
         else:
             self.fields.pop('to')
     

orchestra/contrib/accounts/settings.py

@@ -12,7 +12,9 @@ ACCOUNTS_TYPES = Setting('ACCOUNTS_TYPES', (
         ('PUBLICBODY', _("Public body")),
         ('STAFF', _("Staff")),
         ('FRIEND', _("Friend")),
-))
+    ),
+    validators=[Setting.validate_choices]
+)
 
 
 ACCOUNTS_DEFAULT_TYPE = Setting('ACCOUNTS_DEFAULT_TYPE', 'INDIVIDUAL', choices=ACCOUNTS_TYPES)
@@ -20,14 +22,16 @@ ACCOUNTS_DEFAULT_TYPE = Setting('ACCOUNTS_DEFAULT_TYPE', 'INDIVIDUAL', choices=A
 
 ACCOUNTS_LANGUAGES = Setting('ACCOUNTS_LANGUAGES', (
         ('EN', _('English')),
-))
+    ),
+    validators=[Setting.validate_choices]
+)
 
 
 ACCOUNTS_DEFAULT_LANGUAGE = Setting('ACCOUNTS_DEFAULT_LANGUAGE', 'EN', choices=ACCOUNTS_LANGUAGES)
 
 
-ACCOUNTS_SYSTEMUSER_MODEL = Setting('ACCOUNTS_SYSTEMUSER_MODEL',
+ACCOUNTS_SYSTEMUSER_MODEL = Setting('ACCOUNTS_SYSTEMUSER_MODEL', 'systemusers.SystemUser',
-    'systemusers.SystemUser'
+    validators=[Setting.validate_model_label],
 )
 
 

orchestra/contrib/bills/actions.py

@@ -56,7 +56,7 @@ def close_bills(modeladmin, request, queryset):
     for bill in queryset:
         if not validate_contact(request, bill):
             return
-    SelectSourceFormSet = adminmodelformset_factory(SelectSourceForm, modeladmin, extra=0)
+    SelectSourceFormSet = adminmodelformset_factory(modeladmin, SelectSourceForm, extra=0)
     formset = SelectSourceFormSet(queryset=queryset)
     if request.POST.get('post') == 'generic_confirmation':
         formset = SelectSourceFormSet(request.POST, request.FILES, queryset=queryset)

orchestra/contrib/bills/forms.py

@@ -2,37 +2,38 @@ from django import forms
 from django.utils.translation import ugettext_lazy as _
 
 from orchestra.admin.utils import admin_link
-from orchestra.forms.widgets import ShowTextWidget
+from orchestra.forms import SpanWidget
 
 
 class SelectSourceForm(forms.ModelForm):
-    bill_link = forms.CharField(label=_("Number"), required=False, widget=ShowTextWidget())
+    bill_link = forms.CharField(label=_("Number"), required=False, widget=SpanWidget)
     account_link = forms.CharField(label=_("Account"), required=False)
-    display_total = forms.CharField(label=_("Total"), required=False)
+    show_total = forms.CharField(label=_("Total"), required=False, widget=SpanWidget)
-    display_type = forms.CharField(label=_("Type"), required=False, widget=ShowTextWidget())
+    display_type = forms.CharField(label=_("Type"), required=False, widget=SpanWidget)
     source = forms.ChoiceField(label=_("Source"), required=False)
     
     class Meta:
         fields = (
-            'bill_link', 'display_type', 'account_link', 'display_total',
+            'bill_link', 'display_type', 'account_link', 'show_total', 'source'
-            'source'
         )
-        readonly_fields = ('account_link', 'display_total')
+        readonly_fields = ('account_link',)
     
     def __init__(self, *args, **kwargs):
         super(SelectSourceForm, self).__init__(*args, **kwargs)
         bill = kwargs.get('instance')
         if bill:
+            total = bill.get_total()
             sources = bill.account.paymentsources.filter(is_active=True)
-            recharge = bool(bill.total < 0)
+            recharge = bool(total < 0)
             choices = [(None, '-----------')]
             for source in sources:
                 if not recharge or source.method_class().allow_recharge:
                     choices.append((source.pk, str(source)))
             self.fields['source'].choices = choices
             self.fields['source'].initial = choices[-1][0]
-            self.fields['bill_link'].initial = admin_link('__str__')(bill)
+            self.fields['show_total'].widget.display = total
-            self.fields['display_type'].initial = bill.get_type_display()
+            self.fields['bill_link'].widget.display = admin_link('__str__')(bill)
+            self.fields['display_type'].widget.display = bill.get_type_display()
     
     def clean_source(self):
         source_id = self.cleaned_data['source']

orchestra/contrib/bills/settings.py

@@ -7,69 +7,43 @@ from orchestra.settings import ORCHESTRA_BASE_DOMAIN, Setting
 BILLS_NUMBER_LENGTH = Setting('BILLS_NUMBER_LENGTH', 4)
 
 
-BILLS_INVOICE_NUMBER_PREFIX = Setting('BILLS_INVOICE_NUMBER_PREFIX',
+BILLS_INVOICE_NUMBER_PREFIX = Setting('BILLS_INVOICE_NUMBER_PREFIX', 'I')
-    'I'
-)
 
 
-BILLS_AMENDMENT_INVOICE_NUMBER_PREFIX = Setting('BILLS_AMENDMENT_INVOICE_NUMBER_PREFIX',
+BILLS_AMENDMENT_INVOICE_NUMBER_PREFIX = Setting('BILLS_AMENDMENT_INVOICE_NUMBER_PREFIX', 'A')
-    'A'
-)
 
 
-BILLS_FEE_NUMBER_PREFIX = Setting('BILLS_FEE_NUMBER_PREFIX',
+BILLS_FEE_NUMBER_PREFIX = Setting('BILLS_FEE_NUMBER_PREFIX', 'F')
-    'F'
-)
 
 
-BILLS_AMENDMENT_FEE_NUMBER_PREFIX = Setting('BILLS_AMENDMENT_FEE_NUMBER_PREFIX',
+BILLS_AMENDMENT_FEE_NUMBER_PREFIX = Setting('BILLS_AMENDMENT_FEE_NUMBER_PREFIX', 'B')
-    'B'
-)
 
 
-BILLS_PROFORMA_NUMBER_PREFIX = Setting('BILLS_PROFORMA_NUMBER_PREFIX',
+BILLS_PROFORMA_NUMBER_PREFIX = Setting('BILLS_PROFORMA_NUMBER_PREFIX', 'P')
-    'P'
-)
 
 
-BILLS_DEFAULT_TEMPLATE = Setting('BILLS_DEFAULT_TEMPLATE',
+BILLS_DEFAULT_TEMPLATE = Setting('BILLS_DEFAULT_TEMPLATE', 'bills/microspective.html')
-    'bills/microspective.html'
-)
 
 
-BILLS_FEE_TEMPLATE = Setting('BILLS_FEE_TEMPLATE',
+BILLS_FEE_TEMPLATE = Setting('BILLS_FEE_TEMPLATE', 'bills/microspective-fee.html')
-    'bills/microspective-fee.html'
-)
 
 
-BILLS_PROFORMA_TEMPLATE = Setting('BILLS_PROFORMA_TEMPLATE',
+BILLS_PROFORMA_TEMPLATE = Setting('BILLS_PROFORMA_TEMPLATE', 'bills/microspective-proforma.html')
-    'bills/microspective-proforma.html'
-)
 
 
-BILLS_CURRENCY = Setting('BILLS_CURRENCY',
+BILLS_CURRENCY = Setting('BILLS_CURRENCY', 'euro')
-    'euro'
-)
 
 
-BILLS_SELLER_PHONE = Setting('BILLS_SELLER_PHONE',
+BILLS_SELLER_PHONE = Setting('BILLS_SELLER_PHONE', '111-112-11-222')
-    '111-112-11-222'
-)
 
 
-BILLS_SELLER_EMAIL = Setting('BILLS_SELLER_EMAIL',
+BILLS_SELLER_EMAIL = Setting('BILLS_SELLER_EMAIL', 'sales@{}'.format(ORCHESTRA_BASE_DOMAIN))
-    'sales@{}'.format(ORCHESTRA_BASE_DOMAIN)
-)
 
 
-BILLS_SELLER_WEBSITE = Setting('BILLS_SELLER_WEBSITE',
+BILLS_SELLER_WEBSITE = Setting('BILLS_SELLER_WEBSITE', 'www.{}'.format(ORCHESTRA_BASE_DOMAIN))
-    'www.{}'.format(ORCHESTRA_BASE_DOMAIN)
-)
 
 
-BILLS_SELLER_BANK_ACCOUNT = Setting('BILLS_SELLER_BANK_ACCOUNT',
+BILLS_SELLER_BANK_ACCOUNT = Setting('BILLS_SELLER_BANK_ACCOUNT', '0000 0000 00 00000000 (Orchestra Bank)')
-    '0000 0000 00 00000000 (Orchestra Bank)'
-)
 
 
 BILLS_EMAIL_NOTIFICATION_TEMPLATE = Setting('BILLS_EMAIL_NOTIFICATION_TEMPLATE',
@@ -77,18 +51,16 @@ BILLS_EMAIL_NOTIFICATION_TEMPLATE = Setting('BILLS_EMAIL_NOTIFICATION_TEMPLATE',
 )
 
 
-BILLS_ORDER_MODEL = Setting('BILLS_ORDER_MODEL',
+BILLS_ORDER_MODEL = Setting('BILLS_ORDER_MODEL', 'orders.Order',
-    'orders.Order'
+    validators=[Setting.validate_model_label]
 )
 
 
-BILLS_CONTACT_DEFAULT_CITY = Setting('BILLS_CONTACT_DEFAULT_CITY',
+BILLS_CONTACT_DEFAULT_CITY = Setting('BILLS_CONTACT_DEFAULT_CITY', 'Barcelona')
-    'Barcelona'
-)
 
 
 BILLS_CONTACT_COUNTRIES = Setting('BILLS_CONTACT_COUNTRIES', tuple((k,v) for k,v in data.COUNTRIES.items()),
-    editable=False
+    serializable=False
 )
 
 

orchestra/contrib/contacts/settings.py

@@ -1,26 +1,32 @@
-from django.conf import settings
 from django_countries import data
 
 from orchestra.settings import Setting
 
 
-CONTACTS_DEFAULT_EMAIL_USAGES = Setting('CONTACTS_DEFAULT_EMAIL_USAGES', (
+CONTACTS_DEFAULT_EMAIL_USAGES = Setting('CONTACTS_DEFAULT_EMAIL_USAGES',
+    default=(
         'SUPPORT',
         'ADMIN',
         'BILLING',
         'TECH',
         'ADDS',
         'EMERGENCY'
-))
+    ),
-
-
-CONTACTS_DEFAULT_CITY = Setting('CONTACTS_DEFAULT_CITY',
-    'Barcelona'
 )
 
 
-CONTACTS_COUNTRIES = Setting('CONTACTS_COUNTRIES', tuple((k,v) for k,v in data.COUNTRIES.items()),
+CONTACTS_DEFAULT_CITY = Setting('CONTACTS_DEFAULT_CITY',
-    editable=False)
+    default='Barcelona'
+)
 
 
-CONTACTS_DEFAULT_COUNTRY = Setting('CONTACTS_DEFAULT_COUNTRY', 'ES', choices=CONTACTS_COUNTRIES)
+CONTACTS_COUNTRIES = Setting('CONTACTS_COUNTRIES',
+    default=tuple((k,v) for k,v in data.COUNTRIES.items()),
+    serializable=False
+)
+
+
+CONTACTS_DEFAULT_COUNTRY = Setting('CONTACTS_DEFAULT_COUNTRY',
+    default='ES',
+    choices=CONTACTS_COUNTRIES
+)

orchestra/contrib/databases/settings.py

@@ -1,17 +1,15 @@
-from django.conf import settings
-
 from orchestra.settings import Setting
 
 
 DATABASES_TYPE_CHOICES = Setting('DATABASES_TYPE_CHOICES', (
         ('mysql', 'MySQL'),
         ('postgres', 'PostgreSQL'),
-))
+    ),
+    validators=[Setting.validate_choices]
+)
 
 
 DATABASES_DEFAULT_TYPE = Setting('DATABASES_DEFAULT_TYPE', 'mysql', choices=DATABASES_TYPE_CHOICES)
 
 
-DATABASES_DEFAULT_HOST = Setting('DATABASES_DEFAULT_HOST',
+DATABASES_DEFAULT_HOST = Setting('DATABASES_DEFAULT_HOST', 'localhost')
-    'localhost'
-)

orchestra/contrib/domains/models.py

@@ -94,7 +94,7 @@ class Domain(models.Model):
         return self.origin.subdomain_set.all().prefetch_related('records')
     
     def get_parent(self, top=False):
-        return type(self).get_parent_domain(self.name, top=top)
+        return self.get_parent_domain(self.name, top=top)
     
     def render_zone(self):
         origin = self.origin

orchestra/contrib/domains/settings.py

@@ -1,5 +1,4 @@
-from django.conf import settings
+from orchestra.core.validators import validate_ipv4_address, validate_ipv6_address
-
 from orchestra.settings import ORCHESTRA_BASE_DOMAIN, Setting
 
 
@@ -58,18 +57,19 @@ DOMAINS_CHECKZONE_BIN_PATH = Setting('DOMAINS_CHECKZONE_BIN_PATH',
 )
 
 
-DOMAINS_ZONE_VALIDATION_TMP_DIR = Setting('DOMAINS_ZONE_VALIDATION_TMP_DIR', '/dev/shm',
+DOMAINS_ZONE_VALIDATION_TMP_DIR = Setting('DOMAINS_ZONE_VALIDATION_TMP_DIR',
+    '/dev/shm',
     help_text="Used for creating temporary zone files used for validation."
 )
 
 
-DOMAINS_DEFAULT_A = Setting('DOMAINS_DEFAULT_A',
+DOMAINS_DEFAULT_A = Setting('DOMAINS_DEFAULT_A', '10.0.3.13',
-    '10.0.3.13'
+    validators=[validate_ipv4_address]
 )
 
 
-DOMAINS_DEFAULT_AAAA = Setting('DOMAINS_DEFAULT_AAAA',
+DOMAINS_DEFAULT_AAAA = Setting('DOMAINS_DEFAULT_AAAA', '',
-    ''
+    validators=[validate_ipv6_address]
 )
 
 
@@ -96,11 +96,13 @@ DOMAINS_FORBIDDEN = Setting('DOMAINS_FORBIDDEN', '',
 )
 
 
-DOMAINS_MASTERS = Setting('DOMAINS_MASTERS', (),
+DOMAINS_MASTERS = Setting('DOMAINS_MASTERS',
+    (),
     help_text="Additional master server ip addresses other than autodiscovered by router.get_servers()."
 )
 
 
-DOMAINS_SLAVES = Setting('DOMAINS_SLAVES', (),
+DOMAINS_SLAVES = Setting('DOMAINS_SLAVES',
+    (),
     help_text="Additional slave server ip addresses other than autodiscovered by router.get_servers()."
 )

orchestra/contrib/issues/forms.py

@@ -5,7 +5,7 @@ from django.utils.safestring import mark_safe
 from django.utils.translation import ugettext_lazy as _
 from markdown import markdown
 
-from orchestra.forms.widgets import ReadOnlyWidget
+from orchestra.forms.widgets import SpanWidget
 
 from .models import Queue, Ticket
 
@@ -40,7 +40,7 @@ class MessageInlineForm(forms.ModelForm):
     
     def __init__(self, *args, **kwargs):
         super(MessageInlineForm, self).__init__(*args, **kwargs)
-        self.fields['created_on'].widget = ReadOnlyWidget('')
+        self.fields['created_on'].widget = SpanWidget(display='')
         
     def clean_content(self):
         """ clean HTML tags """
@@ -98,7 +98,7 @@ class TicketForm(forms.ModelForm):
             description = description.replace('\n', '<br>')
             description = description.replace('#Ha9G9-?8', '>\n')
             description = '<div style="padding-left: 95px;">%s</div>' % description
-            widget = ReadOnlyWidget(description, description)
+            widget = SpanWidget(display=description)
             self.fields['display_description'].widget = widget
     
     def clean_description(self):

orchestra/contrib/issues/settings.py

@@ -1,10 +1,7 @@
 from orchestra.settings import Setting
 
 
-ISSUES_SUPPORT_EMAILS = Setting('ISSUES_SUPPORT_EMAILS', [
+ISSUES_SUPPORT_EMAILS = Setting('ISSUES_SUPPORT_EMAILS', ())
-])
 
 
-ISSUES_NOTIFY_SUPERUSERS = Setting('ISSUES_NOTIFY_SUPERUSERS',
+ISSUES_NOTIFY_SUPERUSERS = Setting('ISSUES_NOTIFY_SUPERUSERS', True)
-    True
-)

orchestra/contrib/lists/backends.py

@@ -67,14 +67,15 @@ class MailmanBackend(ServiceController):
             context['aliases'] = self.get_virtual_aliases(context)
             # Preserve indentation
             self.append(textwrap.dedent("""\
+                aliases='%(aliases)s'
                 if [[ ! $(grep '\s\s*%(name)s\s*$' %(virtual_alias)s) ]]; then
-                    echo '%(aliases)s' >> %(virtual_alias)s
+                    echo "${aliases}" >> %(virtual_alias)s
                     UPDATED_VIRTUAL_ALIAS=1
                 else
                     if [[ ! $(grep '^\s*%(address_name)s@%(address_domain)s\s\s*%(name)s\s*$' %(virtual_alias)s) ]]; then
                         sed -i -e '/^.*\s%(name)s\(%(address_regex)s\)\s*$/d' \\
                                -e 'N; /^\s*\\n\s*$/d; P; D' %(virtual_alias)s
-                        echo '%(aliases)s' >> %(virtual_alias)s
+                        echo "${aliases}" >> %(virtual_alias)s
                         UPDATED_VIRTUAL_ALIAS=1
                     fi
                 fi""") % context

orchestra/contrib/lists/forms.py

@@ -2,7 +2,7 @@ from django import forms
 from django.utils.translation import ugettext_lazy as _
 
 from orchestra.core.validators import validate_password
-from orchestra.forms.widgets import ReadOnlyWidget
+from orchestra.forms.widgets import SpanWidget
 
 
 class CleanAddressMixin(object):
@@ -32,8 +32,8 @@ class ListCreationForm(CleanAddressMixin, forms.ModelForm):
     
 
 class ListChangeForm(CleanAddressMixin, forms.ModelForm):
-    password = forms.CharField(label=_("Password"),
+    password = forms.CharField(label=_("Password"), required=False,
-        widget=ReadOnlyWidget('<strong>Unknown password</strong>'),
+        widget=SpanWidget(display='<strong>Unknown password</strong>'),
         help_text=_("List passwords are not stored, so there is no way to see this "
                     "list's password, but you can change the password using "
                     "<a href=\"password/\">this form</a>."))

orchestra/contrib/lists/settings.py

@@ -1,14 +1,12 @@
 from orchestra.settings import ORCHESTRA_BASE_DOMAIN, Setting
 
 
-LISTS_DOMAIN_MODEL = Setting('LISTS_DOMAIN_MODEL',
+LISTS_DOMAIN_MODEL = Setting('LISTS_DOMAIN_MODEL', 'domains.Domain',
-    'domains.Domain'
+    validators=[Setting.validate_model_label]
 )
 
 
-LISTS_DEFAULT_DOMAIN = Setting('LISTS_DEFAULT_DOMAIN',
+LISTS_DEFAULT_DOMAIN = Setting('LISTS_DEFAULT_DOMAIN', 'lists.{}'.format(ORCHESTRA_BASE_DOMAIN))
-    'lists.{}'.format(ORCHESTRA_BASE_DOMAIN)
-)
 
 
 LISTS_LIST_URL = Setting('LISTS_LIST_URL',
@@ -16,21 +14,13 @@ LISTS_LIST_URL = Setting('LISTS_LIST_URL',
 )
 
 
-LISTS_MAILMAN_POST_LOG_PATH = Setting('LISTS_MAILMAN_POST_LOG_PATH',
+LISTS_MAILMAN_POST_LOG_PATH = Setting('LISTS_MAILMAN_POST_LOG_PATH', '/var/log/mailman/post')
-    '/var/log/mailman/post'
-)
 
 
-LISTS_MAILMAN_ROOT_DIR = Setting('LISTS_MAILMAN_ROOT_DIR',
+LISTS_MAILMAN_ROOT_DIR = Setting('LISTS_MAILMAN_ROOT_DIR', '/var/lib/mailman')
-    '/var/lib/mailman'
-)
 
 
-LISTS_VIRTUAL_ALIAS_PATH = Setting('LISTS_VIRTUAL_ALIAS_PATH',
+LISTS_VIRTUAL_ALIAS_PATH = Setting('LISTS_VIRTUAL_ALIAS_PATH', '/etc/postfix/mailman_virtual_aliases')
-    '/etc/postfix/mailman_virtual_aliases'
-)
 
 
-LISTS_VIRTUAL_ALIAS_DOMAINS_PATH = Setting('LISTS_VIRTUAL_ALIAS_DOMAINS_PATH',
+LISTS_VIRTUAL_ALIAS_DOMAINS_PATH = Setting('LISTS_VIRTUAL_ALIAS_DOMAINS_PATH', '/etc/postfix/mailman_virtual_domains')
-    '/etc/postfix/mailman_virtual_domains'
-)

orchestra/contrib/mailboxes/settings.py

@@ -3,17 +3,16 @@ import textwrap
 
 from django.utils.translation import ugettext_lazy as _
 
+from orchestra.core.validators import validate_name
 from orchestra.settings import ORCHESTRA_BASE_DOMAIN, Setting
 
 
-MAILBOXES_DOMAIN_MODEL = Setting('MAILBOXES_DOMAIN_MODEL',
+MAILBOXES_DOMAIN_MODEL = Setting('MAILBOXES_DOMAIN_MODEL', 'domains.Domain',
-    'domains.Domain'
+    validators=[Setting.validate_model_label]
 )
 
 
-MAILBOXES_HOME = Setting('MAILBOXES_HOME',
+MAILBOXES_HOME = Setting('MAILBOXES_HOME', '/home/%(name)s/')
-    '/home/%(name)s/'
-)
 
 
 MAILBOXES_SIEVE_PATH = Setting('MAILBOXES_SIEVE_PATH',
@@ -21,13 +20,11 @@ MAILBOXES_SIEVE_PATH = Setting('MAILBOXES_SIEVE_PATH',
 )
 
 
-MAILBOXES_SIEVETEST_PATH = Setting('MAILBOXES_SIEVETEST_PATH',
+MAILBOXES_SIEVETEST_PATH = Setting('MAILBOXES_SIEVETEST_PATH', '/dev/shm')
-    '/dev/shm'
-)
 
 
-MAILBOXES_SIEVETEST_BIN_PATH = Setting('MAILBOXES_SIEVETEST_BIN_PATH',
+MAILBOXES_SIEVETEST_BIN_PATH = Setting('MAILBOXES_SIEVETEST_BIN_PATH', '%(orchestra_root)s/bin/sieve-test',
-    '%(orchestra_root)s/bin/sieve-test'
+    validators=[Setting.string_format_validator(('orchestra_root',))]
 )
 
 
@@ -46,14 +43,12 @@ MAILBOXES_VIRTUAL_ALIAS_DOMAINS_PATH = Setting('MAILBOXES_VIRTUAL_ALIAS_DOMAINS_
 )
 
 
-MAILBOXES_LOCAL_DOMAIN = Setting('MAILBOXES_LOCAL_DOMAIN', 
+MAILBOXES_LOCAL_DOMAIN = Setting('MAILBOXES_LOCAL_DOMAIN', ORCHESTRA_BASE_DOMAIN,
-    ORCHESTRA_BASE_DOMAIN
+    validators=[validate_name]
 )
 
 
-MAILBOXES_PASSWD_PATH = Setting('MAILBOXES_PASSWD_PATH',
+MAILBOXES_PASSWD_PATH = Setting('MAILBOXES_PASSWD_PATH', '/etc/dovecot/passwd')
-    '/etc/dovecot/passwd'
-)
 
 
 MAILBOXES_MAILBOX_FILTERINGS = Setting('MAILBOXES_MAILBOX_FILTERINGS', {
@@ -80,21 +75,15 @@ MAILBOXES_MAILBOX_DEFAULT_FILTERING = Setting('MAILBOXES_MAILBOX_DEFAULT_FILTERI
 )
 
 
-MAILBOXES_MAILDIRSIZE_PATH = Setting('MAILBOXES_MAILDIRSIZE_PATH',
+MAILBOXES_MAILDIRSIZE_PATH = Setting('MAILBOXES_MAILDIRSIZE_PATH', '%(home)s/Maildir/maildirsize')
-    '%(home)s/Maildir/maildirsize'
+
+
+MAILBOXES_LOCAL_ADDRESS_DOMAIN = Setting('MAILBOXES_LOCAL_ADDRESS_DOMAIN', ORCHESTRA_BASE_DOMAIN,
+    validators=[validate_name]
 )
 
 
-MAILBOXES_LOCAL_ADDRESS_DOMAIN = Setting('MAILBOXES_LOCAL_ADDRESS_DOMAIN',
+MAILBOXES_MAIL_LOG_PATH = Setting('MAILBOXES_MAIL_LOG_PATH', '/var/log/mail.log')
-    ORCHESTRA_BASE_DOMAIN
-)
 
 
-MAILBOXES_MAIL_LOG_PATH = Setting('MAILBOXES_MAIL_LOG_PATH',
+MAILBOXES_MOVE_ON_DELETE_PATH = Setting('MAILBOXES_MOVE_ON_DELETE_PATH', '')
-    '/var/log/mail.log'
-)
-
-
-MAILBOXES_MOVE_ON_DELETE_PATH = Setting('MAILBOXES_MOVE_ON_DELETE_PATH',
-    ''
-)

orchestra/contrib/orchestration/methods.py

@@ -31,7 +31,7 @@ def SSH(backend, log, server, cmds, async=False):
     script = script.replace('\r', '')
     bscript = script.encode('utf-8')
     digest = hashlib.md5(bscript).hexdigest()
-    path = os.path.join(settings.ORCHESTRATION_TEMP_SCRIPT_PATH, digest)
+    path = os.path.join(settings.ORCHESTRATION_TEMP_SCRIPT_DIR, digest)
     remote_path = "%s.remote" % path
     log.script = '# %s\n%s' % (remote_path, script)
     log.save(update_fields=['script'])

orchestra/contrib/orchestration/middlewares.py

@@ -94,7 +94,7 @@ class OperationsMiddleware(object):
     def process_response(self, request, response):
         """ Processes pending backend operations """
         if not isinstance(response, HttpResponseServerError):
-            operations = type(self).get_pending_operations()
+            operations = self.get_pending_operations()
             if operations:
                 try:
                     scripts, block = manager.generate(operations)

orchestra/contrib/orchestration/settings.py

@@ -6,7 +6,9 @@ from orchestra.settings import Setting
 
 ORCHESTRATION_OS_CHOICES = Setting('ORCHESTRATION_OS_CHOICES', (
         ('LINUX', "Linux"),
-))
+    ),
+    validators=[Setting.validate_choices]
+)
 
 
 ORCHESTRATION_DEFAULT_OS = Setting('ORCHESTRATION_DEFAULT_OS', 'LINUX',
@@ -17,19 +19,15 @@ ORCHESTRATION_SSH_KEY_PATH = Setting('ORCHESTRATION_SSH_KEY_PATH',
     path.join(path.expanduser('~'), '.ssh/id_rsa'))
 
 
-ORCHESTRATION_ROUTER = Setting('ORCHESTRATION_ROUTER',
+ORCHESTRATION_ROUTER = Setting('ORCHESTRATION_ROUTER', 'orchestra.contrib.orchestration.models.Route',
-    'orchestra.contrib.orchestration.models.Route'
+    validators=[Setting.validate_import_class]
 )
 
 
-ORCHESTRATION_TEMP_SCRIPT_PATH = Setting('ORCHESTRATION_TEMP_SCRIPT_PATH',
+ORCHESTRATION_TEMP_SCRIPT_DIR = Setting('ORCHESTRATION_TEMP_SCRIPT_DIR', '/dev/shm')
-    '/dev/shm'
-)
 
 
-ORCHESTRATION_DISABLE_EXECUTION = Setting('ORCHESTRATION_DISABLE_EXECUTION',
+ORCHESTRATION_DISABLE_EXECUTION = Setting('ORCHESTRATION_DISABLE_EXECUTION', False)
-    False
-)
 
 
 ORCHESTRATION_BACKEND_CLEANUP_DELTA = Setting('ORCHESTRATION_BACKEND_CLEANUP_DELTA',

orchestra/contrib/orders/actions.py

@@ -91,7 +91,6 @@ class BillSelectedOrders(object):
                     url = reverse('admin:bills_bill_changelist')
                     ids = ','.join(map(str, bills))
                     url += '?id__in=%s' % ids
-                num = len(bills)
                 msg = ungettext(
                     '<a href="{url}">One bill</a> has been created.',
                     '<a href="{url}">{num} bills</a> have been created.',
@@ -100,11 +99,18 @@ class BillSelectedOrders(object):
                 self.modeladmin.message_user(request, msg, messages.INFO)
             return
         bills = self.queryset.bill(commit=False, **self.options)
+        bills_with_total = []
+        for account, lines in bills:
+            total = 0
+            for line in lines:
+                discount = sum([discount.total for discount in line.discounts])
+                total += line.subtotal + discount
+            bills_with_total.append((account, total, lines))
         self.context.update({
             'title': _("Confirmation for billing selected orders"),
             'step': 3,
             'form': form,
-            'bills': bills,
+            'bills': bills_with_total,
         })
         return render(request, self.template, self.context)
 

orchestra/contrib/orders/settings.py

@@ -1,19 +1,18 @@
 from orchestra.settings import Setting
 
 
-# Pluggable backend for bill generation.
+ORDERS_BILLING_BACKEND = Setting('ORDERS_BILLING_BACKEND', 'orchestra.contrib.orders.billing.BillsBackend',
-ORDERS_BILLING_BACKEND = Setting('ORDERS_BILLING_BACKEND',
+    validators=[Setting.validate_import_class],
-    'orchestra.contrib.orders.billing.BillsBackend'
+    help_text="Pluggable backend for bill generation.",
 )
 
 
-# Pluggable service class
+ORDERS_SERVICE_MODEL = Setting('ORDERS_SERVICE_MODEL', 'services.Service',
-ORDERS_SERVICE_MODEL = Setting('ORDERS_SERVICE_MODEL',
+    validators=[Setting.validate_model_label],
-    'services.Service'
+    help_text="Pluggable service class."
 )
 
 
-# Prevent inspecting these apps for service accounting
 ORDERS_EXCLUDED_APPS = Setting('ORDERS_EXCLUDED_APPS', (
         'orders',
         'admin',
@@ -24,11 +23,12 @@ ORDERS_EXCLUDED_APPS = Setting('ORDERS_EXCLUDED_APPS', (
         'orchestration',
         'bills',
         'services',
-))
+    ),
-
+    help_text="Prevent inspecting these apps for service accounting."
-
+)
-# Only account for significative changes
+
-# metric_storage new value: lastvalue*(1+threshold) > currentvalue or lastvalue*threshold < currentvalue
+
-ORDERS_METRIC_ERROR = Setting('ORDERS_METRIC_ERROR',
+ORDERS_METRIC_ERROR = Setting('ORDERS_METRIC_ERROR', 0.01,
-    0.01
+    help_text=("Only account for significative changes.<br>"
+               "metric_storage new value: <tt>lastvalue*(1+threshold) > currentvalue or lastvalue*threshold < currentvalue</tt>.")
 )

orchestra/contrib/orders/templates/admin/orders/order/bill_selected_options.html

@@ -28,11 +28,11 @@
     <div>
     <div style="margin:20px;">
         {% if bills %}
-            {% for account, lines in bills %}
+            {% for account, total, lines in bills %}
             <div class="inline-group" id="rates-group">
              <div class="tabular inline-related last-related">
             <fieldset class="module">
-            <h2><a href="{% url 'admin:accounts_account_change' account.pk %}">{{ account }}</a></h2>
+            <h2><a href="{% url 'admin:accounts_account_change' account.pk %}">{{ account }}</a><span style="float:right">{{ total | floatformat:"-2" }} &euro;</span></h2>
             <table>
             <thead>
                 <tr><th style="width:30%;">Description</th> <th style="width:30%;">Period</th> <th style="width:10%;">Quantity</th> <th style="width:10%;">Price</th></tr>

orchestra/contrib/payments/settings.py

@@ -3,25 +3,19 @@ from orchestra.settings import Setting
 from .. import payments
 
 
-PAYMENT_CURRENCY = Setting('PAYMENT_CURRENCY',
+PAYMENT_CURRENCY = Setting('PAYMENT_CURRENCY', 'Eur')
-    'Eur'
-)
 
 
-PAYMENTS_DD_CREDITOR_NAME = Setting('PAYMENTS_DD_CREDITOR_NAME',
+PAYMENTS_DD_CREDITOR_NAME = Setting('PAYMENTS_DD_CREDITOR_NAME', 'Orchestra')
-    'Orchestra')
 
 
-PAYMENTS_DD_CREDITOR_IBAN = Setting('PAYMENTS_DD_CREDITOR_IBAN',
+PAYMENTS_DD_CREDITOR_IBAN = Setting('PAYMENTS_DD_CREDITOR_IBAN', 'IE98BOFI90393912121212')
-    'IE98BOFI90393912121212')
 
 
-PAYMENTS_DD_CREDITOR_BIC = Setting('PAYMENTS_DD_CREDITOR_BIC',
+PAYMENTS_DD_CREDITOR_BIC = Setting('PAYMENTS_DD_CREDITOR_BIC', 'BOFIIE2D')
-    'BOFIIE2D')
 
 
-PAYMENTS_DD_CREDITOR_AT02_ID = Setting('PAYMENTS_DD_CREDITOR_AT02_ID',
+PAYMENTS_DD_CREDITOR_AT02_ID = Setting('PAYMENTS_DD_CREDITOR_AT02_ID', 'InvalidAT02ID')
-    'InvalidAT02ID')
 
 
 PAYMENTS_ENABLED_METHODS = Setting('PAYMENTS_ENABLED_METHODS', (

orchestra/contrib/resources/backends.py

@@ -42,7 +42,7 @@ class ServiceMonitor(ServiceBackend):
         from .models import MonitorData
         try:
             return MonitorData.objects.filter(content_type=self.content_type,
-                monitor=type(self).get_name(), object_id=object_id).latest()
+                monitor=self.get_name(), object_id=object_id).latest()
         except MonitorData.DoesNotExist:
             return None
         

orchestra/contrib/resources/forms.py

@@ -1,30 +1,38 @@
 from django import forms
 from django.utils.translation import ugettext_lazy as _
 
-from orchestra.forms.widgets import ShowTextWidget, ReadOnlyWidget
+from orchestra.forms import ReadOnlyFormMixin
+from orchestra.forms.widgets import SpanWidget
 
 
-class ResourceForm(forms.ModelForm):
+class ResourceForm(ReadOnlyFormMixin, forms.ModelForm):
     verbose_name = forms.CharField(label=_("Name"), required=False,
-        widget=ShowTextWidget(tag='<b>'))
+        widget=SpanWidget(tag='<b>'))
     allocated = forms.DecimalField(label=_("Allocated"))
-    unit = forms.CharField(label=_("Unit"), widget=ShowTextWidget(), required=False)
+    unit = forms.CharField(label=_("Unit"), required=False)
     
     class Meta:
         fields = ('verbose_name', 'used', 'last_update', 'allocated', 'unit')
+        readonly_fields = ('verbose_name', 'unit')
     
     def __init__(self, *args, **kwargs):
         self.resource = kwargs.pop('resource', None)
+        if self.resource:
+            initial = kwargs.get('initial', {})
+            initial.update({
+                'verbose_name': self.resource.get_verbose_name(),
+                'unit': self.resource.unit,
+            })
+            kwargs['initial'] = initial
         super(ResourceForm, self).__init__(*args, **kwargs)
         if self.resource:
-            self.fields['verbose_name'].initial = self.resource.get_verbose_name()
-            self.fields['unit'].initial = self.resource.unit
             if self.resource.on_demand:
                 self.fields['allocated'].required = False
-                self.fields['allocated'].widget = ReadOnlyWidget(None, '')
+                self.fields['allocated'].widget = SpanWidget(original=None, display='')
             else:
                 self.fields['allocated'].required = True
                 self.fields['allocated'].initial = self.resource.default_allocation
+                
 #    def has_changed(self):
 #        """ Make sure resourcedata objects are created for all resources """
 #        if not self.instance.pk:

orchestra/contrib/saas/services/gitlab.py

@@ -14,8 +14,8 @@ class GitLabForm(SoftwareServiceForm):
         help_text=_("Initial email address, changes on the GitLab server are not reflected here."))
 
 
-class GitLaChangebForm(GitLabForm):
+class GitLaChangeForm(GitLabForm):
-    user_id = forms.IntegerField(label=("User ID"), widget=widgets.ShowTextWidget,
+    user_id = forms.IntegerField(label=("User ID"), widget=widgets.SpanWidget,
         help_text=_("ID of this user on the GitLab server, the only attribute that not changes."))
 
 
@@ -27,7 +27,7 @@ class GitLabSerializer(serializers.Serializer):
 class GitLabService(SoftwareService):
     name = 'gitlab'
     form = GitLabForm
-    change_form = GitLaChangebForm
+    change_form = GitLaChangeForm
     serializer = GitLabSerializer
     site_domain = settings.SAAS_GITLAB_DOMAIN
     change_readonly_fileds = ('email', 'user_id',)

orchestra/contrib/saas/services/options.py

@@ -6,7 +6,7 @@ from django.utils.translation import ugettext_lazy as _
 from orchestra import plugins
 from orchestra.contrib.orchestration import Operation
 from orchestra.core import validators
-from orchestra.forms import widgets
+from orchestra.forms.widgets import SpanWidget
 from orchestra.plugins.forms import PluginDataForm
 from orchestra.utils.functional import cached
 from orchestra.utils.python import import_class, random_ascii
@@ -15,9 +15,9 @@ from .. import settings
 
 
 class SoftwareServiceForm(PluginDataForm):
-    site_url = forms.CharField(label=_("Site URL"), widget=widgets.ShowTextWidget, required=False)
+    site_url = forms.CharField(label=_("Site URL"), widget=SpanWidget(), required=False)
     password = forms.CharField(label=_("Password"), required=False,
-        widget=widgets.ReadOnlyWidget('<strong>Unknown password</strong>'),
+        widget=SpanWidget(display='<strong>Unknown password</strong>'),
         validators=[
             validators.validate_password,
             RegexValidator(r'^[^"\'\\]+$',
@@ -36,6 +36,7 @@ class SoftwareServiceForm(PluginDataForm):
     
     class Meta:
         exclude = ('database',)
+        readonly_fields = ('site_url',)
     
     def __init__(self, *args, **kwargs):
         super(SoftwareServiceForm, self).__init__(*args, **kwargs)
@@ -54,7 +55,7 @@ class SoftwareServiceForm(PluginDataForm):
             site_link = '<a href="http://%s">%s</a>' % (site_domain, site_domain)
         else:
             site_link = '&lt;site_name&gt;.%s' % self.plugin.site_base_domain
-        self.fields['site_url'].initial = site_link
+        self.fields['site_url'].widget.display = site_link
         self.fields['name'].label = _("Username")
     
     def clean_password2(self):

orchestra/contrib/saas/services/phplist.py

@@ -5,7 +5,7 @@ from django.utils.safestring import mark_safe
 from django.utils.translation import ugettext_lazy as _
 
 from orchestra.contrib.databases.models import Database, DatabaseUser
-from orchestra.forms import widgets
+from orchestra.forms.widgets import SpanWidget
 
 from .. import settings
 from .options import SoftwareService, SoftwareServiceForm
@@ -13,7 +13,7 @@ from .options import SoftwareService, SoftwareServiceForm
 
 class PHPListForm(SoftwareServiceForm):
     admin_username = forms.CharField(label=_("Admin username"), required=False,
-            widget=widgets.ReadOnlyWidget('admin'))
+            widget=SpanWidget(display='admin'))
     
     def __init__(self, *args, **kwargs):
         super(PHPListForm, self).__init__(*args, **kwargs)
@@ -37,7 +37,7 @@ class PHPListChangeForm(PHPListForm):
         db = self.instance.database
         db_url = reverse('admin:databases_database_change', args=(db.pk,))
         db_link = mark_safe('<a href="%s">%s</a>' % (db_url, db.name))
-        self.fields['database'].widget = widgets.ReadOnlyWidget(db.name, db_link)
+        self.fields['database'].widget = SpanWidget(original=db.name, display=db_link)
 
 
 class PHPListService(SoftwareService):
@@ -57,7 +57,7 @@ class PHPListService(SoftwareService):
         return settings.SAAS_PHPLIST_DB_NAME
     
     def get_account(self):
-        return type(self.instance.account).get_main()
+        return self.instance.account.get_main()
     
     def validate(self):
         super(PHPListService, self).validate()

orchestra/contrib/saas/settings.py

@@ -19,9 +19,7 @@ SAAS_ENABLED_SERVICES = Setting('SAAS_ENABLED_SERVICES', (
 )
 
 
-SAAS_WORDPRESS_ADMIN_PASSWORD = Setting('SAAS_WORDPRESSMU_ADMIN_PASSWORD',
+SAAS_WORDPRESS_ADMIN_PASSWORD = Setting('SAAS_WORDPRESSMU_ADMIN_PASSWORD', 'secret')
-    'secret'
-)
 
 
 SAAS_WORDPRESS_BASE_URL = Setting('SAAS_WORDPRESS_BASE_URL',
@@ -86,4 +84,3 @@ SAAS_GITLAB_ROOT_PASSWORD = Setting('SAAS_GITLAB_ROOT_PASSWORD',
 SAAS_GITLAB_DOMAIN = Setting('SAAS_GITLAB_DOMAIN',
     'gitlab.{}'.format(ORCHESTRA_BASE_DOMAIN)
 )
-

orchestra/contrib/services/handlers.py

@@ -11,7 +11,7 @@ from django.utils.translation import ugettext, ugettext_lazy as _
 
 from orchestra import plugins
 from orchestra.utils.humanize import text2int
-from orchestra.utils.python import AttrDict, cmp_to_key
+from orchestra.utils.python import AttrDict, cmp_to_key, format_exception
 
 from . import settings, helpers
 
@@ -50,8 +50,7 @@ class ServiceHandler(plugins.Plugin, metaclass=plugins.PluginMount):
         try:
             bool(getattr(self, method)(obj))
         except Exception as exception:
-            name = type(exception).__name__
+            raise ValidationError(format_exception(exc))
-            raise ValidationError(': '.join((name, str(exception))))
     
     def validate_match(self, service):
         if not service.match:

orchestra/contrib/services/settings.py

@@ -6,7 +6,9 @@ from orchestra.settings import Setting
 SERVICES_SERVICE_TAXES = Setting('SERVICES_SERVICE_TAXES', (
         (0, _("Duty free")),
         (21, "21%"),
-))
+    ),
+    validators=[Setting.validate_choices]
+)
 
 
 SERVICES_SERVICE_DEFAULT_TAX = Setting('SERVICES_SERVICE_DEFAULT_TAX', 0,
@@ -19,19 +21,17 @@ SERVICES_SERVICE_ANUAL_BILLING_MONTH = Setting('SERVICES_SERVICE_ANUAL_BILLING_M
 )
 
 
-SERVICES_ORDER_MODEL = Setting('SERVICES_ORDER_MODEL',
+SERVICES_ORDER_MODEL = Setting('SERVICES_ORDER_MODEL', 'orders.Order',
-    'orders.Order'
+    validators=[Setting.validate_model_label]
 )
 
 
-SERVICES_RATE_CLASS = Setting('SERVICES_RATE_CLASS',
+SERVICES_RATE_CLASS = Setting('SERVICES_RATE_CLASS', 'orchestra.contrib.plans.models.Rate',
-    'orchestra.contrib.plans.models.Rate'
+    validators=[Setting.validate_import_class]
 )
 
 
-SERVICES_DEFAULT_IGNORE_PERIOD = Setting('SERVICES_DEFAULT_IGNORE_PERIOD',
+SERVICES_DEFAULT_IGNORE_PERIOD = Setting('SERVICES_DEFAULT_IGNORE_PERIOD', 'TEN_DAYS')
-    'TEN_DAYS'
-)
 
 
 SERVICES_IGNORE_ACCOUNT_TYPE = Setting('SERVICES_IGNORE_ACCOUNT_TYPE', (

orchestra/contrib/settings/forms.py

@@ -5,9 +5,11 @@ from functools import partial
 from django import forms
 from django.core.exceptions import ValidationError
 from django.forms.formsets import formset_factory
+from django.utils.functional import Promise
 from django.utils.translation import ugettext_lazy as _
 
 from orchestra.forms import ReadOnlyFormMixin, widgets
+from orchestra.utils.python import format_exception
 
 from . import parser
 
@@ -20,21 +22,21 @@ class SettingForm(ReadOnlyFormMixin, forms.Form):
         widget=forms.Textarea(attrs={
             'cols': 65,
             'rows': 2,
-            'style': 'font-family:monospace'
+            'style': 'font-family: monospace',
         }))
     CHARFIELD = partial(forms.CharField,
         widget=forms.TextInput(attrs={
             'size': 65,
-                    'style': 'font-family:monospace'
+            'style': 'font-family: monospace',
         }))
-    NON_EDITABLE = partial(forms.CharField, widget=widgets.ShowTextWidget(), required=False)
+    NON_EDITABLE = partial(forms.CharField, widget=widgets.SpanWidget, required=False)
     FORMFIELD_FOR_SETTING_TYPE = {
             bool: partial(forms.BooleanField, required=False),
             int: forms.IntegerField,
             tuple: TEXTAREA,
             list: TEXTAREA,
             dict: TEXTAREA,
-            type(_()): CHARFIELD,
+            Promise: CHARFIELD,
             str: CHARFIELD,
         }
     
@@ -50,8 +52,12 @@ class SettingForm(ReadOnlyFormMixin, forms.Form):
             self.setting_type = initial['type']
             self.setting = initial['setting']
             setting = self.setting
+            if setting.serializable:
                 serialized_value = parser.serialize(initial['value'])
                 serialized_default = parser.serialize(initial['default'])
+            else:
+                serialized_value = parser.NotSupported()
+                serialized_default = parser.NotSupported()
             if not setting.editable or isinstance(serialized_value, parser.NotSupported):
                 field = self.NON_EDITABLE
             else:
@@ -101,7 +107,7 @@ class SettingForm(ReadOnlyFormMixin, forms.Form):
         try:
             value = eval(value, parser.get_eval_context())
         except Exception as exc:
-            raise ValidationError(str(exc))
+            raise ValidationError(format_exception(exc))
         self.setting.validate_value(value)
         if not isinstance(value, self.setting_type):
             if self.setting_type in (tuple, list) and isinstance(value, (tuple, list)):

orchestra/contrib/settings/parser.py

@@ -3,6 +3,7 @@ import os
 import re
 
 from django.utils.translation import ugettext_lazy as _
+from django.utils.functional import Promise
 
 from orchestra.utils.paths import get_project_dir
 
@@ -60,7 +61,7 @@ def get_eval_context():
 def serialize(obj, init=True):
     if isinstance(obj, NotSupported):
         return obj
-    elif isinstance(obj, type(_())):
+    elif isinstance(obj, Promise):
         _obj = LazyUgettextRepr(obj)
     elif isinstance(obj, dict):
         _obj = {}

orchestra/contrib/systemusers/settings.py

@@ -8,7 +8,9 @@ SYSTEMUSERS_SHELLS = Setting('SYSTEMUSERS_SHELLS', (
         ('/bin/rssh', _("No shell, SFTP/RSYNC only")),
         ('/bin/bash', "/bin/bash"),
         ('/bin/sh', "/bin/sh"),
-))
+    ),
+    validators=[Setting.validate_choices]
+)
 
 
 SYSTEMUSERS_DEFAULT_SHELL = Setting('SYSTEMUSERS_DEFAULT_SHELL', '/dev/null',
@@ -16,10 +18,12 @@ SYSTEMUSERS_DEFAULT_SHELL = Setting('SYSTEMUSERS_DEFAULT_SHELL', '/dev/null',
 )
 
 
-SYSTEMUSERS_DISABLED_SHELLS = Setting('SYSTEMUSERS_DISABLED_SHELLS', (
+SYSTEMUSERS_DISABLED_SHELLS = Setting('SYSTEMUSERS_DISABLED_SHELLS',
+    default=(
         '/dev/null',
         '/bin/rssh',
-))
+    ),
+)
 
 
 SYSTEMUSERS_HOME = Setting('SYSTEMUSERS_HOME',

orchestra/contrib/vps/settings.py

@@ -3,7 +3,9 @@ from orchestra.settings import Setting
 
 VPS_TYPES = Setting('VPS_TYPES', (
         ('openvz', 'OpenVZ container'),
-))
+    ),
+    validators=[Setting.validate_choices]
+)
 
 
 VPS_DEFAULT_TYPE = Setting('VPS_DEFAULT_TYPE', 'openvz', choices=VPS_TYPES)
@@ -11,7 +13,9 @@ VPS_DEFAULT_TYPE = Setting('VPS_DEFAULT_TYPE', 'openvz', choices=VPS_TYPES)
 
 VPS_TEMPLATES = Setting('VPS_TEMPLATES', (
         ('debian7', 'Debian 7 - Wheezy'),
-))
+    ),
+    validators=[Setting.validate_choices]
+)
 
 
 VPS_DEFAULT_TEMPLATE = Setting('VPS_DEFAULT_TEMPLATE', 'debian7', choices=VPS_TEMPLATES)

orchestra/contrib/webapps/migrations/0002_auto_20150427_1052.py

@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+import orchestra.core.validators
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('webapps', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='webapp',
+            name='name',
+            field=models.CharField(validators=[orchestra.core.validators.validate_name], max_length=128, verbose_name='name', help_text='The app will be installed in %(home)s/webapps/%(app_name)s'),
+        ),
+        migrations.AlterField(
+            model_name='webapp',
+            name='type',
+            field=models.CharField(max_length=32, verbose_name='type', choices=[('php', 'PHP'), ('python', 'Python'), ('static', 'Static'), ('symbolic-link', 'Symbolic link'), ('webalizer', 'Webalizer'), ('wordpress-php', 'WordPress')]),
+        ),
+        migrations.AlterField(
+            model_name='webappoption',
+            name='name',
+            field=models.CharField(max_length=128, verbose_name='name', choices=[(None, '-------'), ('FileSystem', [('public-root', 'Public root')]), ('Process', [('timeout', 'Process timeout'), ('processes', 'Number of processes')]), ('PHP', [('enable_functions', 'Enable functions'), ('allow_url_include', 'Allow URL include'), ('allow_url_fopen', 'Allow URL fopen'), ('auto_append_file', 'Auto append file'), ('auto_prepend_file', 'Auto prepend file'), ('date.timezone', 'date.timezone'), ('default_socket_timeout', 'Default socket timeout'), ('display_errors', 'Display errors'), ('extension', 'Extension'), ('magic_quotes_gpc', 'Magic quotes GPC'), ('magic_quotes_runtime', 'Magic quotes runtime'), ('magic_quotes_sybase', 'Magic quotes sybase'), ('max_input_time', 'Max input time'), ('max_input_vars', 'Max input vars'), ('memory_limit', 'Memory limit'), ('mysql.connect_timeout', 'Mysql connect timeout'), ('output_buffering', 'Output buffering'), ('register_globals', 'Register globals'), ('post_max_size', 'Post max size'), ('sendmail_path', 'Sendmail path'), ('session.bug_compat_warn', 'Session bug compat warning'), ('session.auto_start', 'Session auto start'), ('safe_mode', 'Safe mode'), ('suhosin.post.max_vars', 'Suhosin POST max vars'), ('suhosin.get.max_vars', 'Suhosin GET max vars'), ('suhosin.request.max_vars', 'Suhosin request max vars'), ('suhosin.session.encrypt', 'Suhosin session encrypt'), ('suhosin.simulation', 'Suhosin simulation'), ('suhosin.executor.include.whitelist', 'Suhosin executor include whitelist'), ('upload_max_filesize', 'Upload max filesize'), ('zend_extension', 'Zend extension')])]),
+        ),
+    ]

orchestra/contrib/webapps/settings.py

@@ -25,35 +25,32 @@ WEBAPPS_PHPFPM_POOL_PATH = Setting('WEBAPPS_PHPFPM_POOL_PATH',
 
 
 WEBAPPS_FCGID_WRAPPER_PATH = Setting('WEBAPPS_FCGID_WRAPPER_PATH',
-    # Inside SuExec Document root
+    '/home/httpd/fcgi-bin.d/%(user)s/%(app_name)s-wrapper',
-    # Make sure all account wrappers are in the same DIR
+    help_text=("Inside SuExec Document root.<br>"
-    '/home/httpd/fcgi-bin.d/%(user)s/%(app_name)s-wrapper'
+               "Make sure all account wrappers are in the same DIR.")
 )
 
 
 WEBAPPS_FCGID_CMD_OPTIONS_PATH = Setting('WEBAPPS_FCGID_CMD_OPTIONS_PATH',
-    # Loaded by Apache
+    '/etc/apache2/fcgid-conf/%(user)s-%(app_name)s.conf',
-    '/etc/apache2/fcgid-conf/%(user)s-%(app_name)s.conf'
+    help_text="Loaded by Apache."
 )
 
 
-# Greater or equal to your FcgidMaxRequestsPerProcess
-# http://httpd.apache.org/mod_fcgid/mod/mod_fcgid.html#examples
 WEBAPPS_PHP_MAX_REQUESTS = Setting('WEBAPPS_PHP_MAX_REQUESTS',
-    400
+    400,
+    help_text='Greater or equal to your <a href="http://httpd.apache.org/mod_fcgid/mod/mod_fcgid.html#examples">FcgidMaxRequestsPerProcess</a>'
 )
 
 
-WEBAPPS_PHP_ERROR_LOG_PATH = Setting('WEBAPPS_PHP_ERROR_LOG_PATH',
+WEBAPPS_PHP_ERROR_LOG_PATH = Setting('WEBAPPS_PHP_ERROR_LOG_PATH', '')
-    ''
-)
 
 
 WEBAPPS_MERGE_PHP_WEBAPPS = Setting('WEBAPPS_MERGE_PHP_WEBAPPS',
-    # Combine all fcgid-wrappers/fpm-pools into one per account-php_version
+    False,
-    # to better control num processes per account and save memory
+    help_text=("Combine all fcgid-wrappers/fpm-pools into one per account-php_version "
-    False)
+               "to better control num processes per account and save memory")
-
+)
 
 WEBAPPS_TYPES = Setting('WEBAPPS_TYPES', (
         'orchestra.contrib.webapps.types.php.PHPApp',
@@ -70,13 +67,15 @@ WEBAPPS_TYPES = Setting('WEBAPPS_TYPES', (
 
 
 WEBAPPS_PHP_VERSIONS = Setting('WEBAPPS_PHP_VERSIONS', (
-    # Execution modle choose by ending -fpm or -cgi
         ('5.4-fpm', 'PHP 5.4 FPM'),
         ('5.4-cgi', 'PHP 5.4 FCGID'),
         ('5.3-cgi', 'PHP 5.3 FCGID'),
         ('5.2-cgi', 'PHP 5.2 FCGID'),
         ('4-cgi', 'PHP 4 FCGID'),
-))
+    ),
+    help_text="Execution modle choose by ending -fpm or -cgi.",
+    validators=[Setting.validate_choices]
+)
 
 
 WEBAPPS_DEFAULT_PHP_VERSION = Setting('WEBAPPS_DEFAULT_PHP_VERSION', '5.4-cgi',
@@ -84,20 +83,17 @@ WEBAPPS_DEFAULT_PHP_VERSION = Setting('WEBAPPS_DEFAULT_PHP_VERSION', '5.4-cgi',
 )
 
 
-WEBAPPS_PHP_CGI_BINARY_PATH = Setting('WEBAPPS_PHP_CGI_BINARY_PATH',
+WEBAPPS_PHP_CGI_BINARY_PATH = Setting('WEBAPPS_PHP_CGI_BINARY_PATH', '/usr/bin/php%(php_version_number)s-cgi',
-    # Path of the cgi binary used by fcgid
+    help_text="Path of the cgi binary used by fcgid."
-    '/usr/bin/php%(php_version_number)s-cgi'
 )
 
 
-WEBAPPS_PHP_CGI_RC_DIR = Setting('WEBAPPS_PHP_CGI_RC_DIR',
+WEBAPPS_PHP_CGI_RC_DIR = Setting('WEBAPPS_PHP_CGI_RC_DIR', '/etc/php%(php_version_number)s/cgi/',
-    # Path to php.ini
+    help_text="Path to php.ini."
-    '/etc/php%(php_version_number)s/cgi/'
 )
 
 
 WEBAPPS_PHP_CGI_INI_SCAN_DIR = Setting('WEBAPPS_PHP_CGI_INI_SCAN_DIR',
-    # Path to php.ini
     '/etc/php%(php_version_number)s/cgi/conf.d'
 )
 
@@ -105,7 +101,9 @@ WEBAPPS_PHP_CGI_INI_SCAN_DIR = Setting('WEBAPPS_PHP_CGI_INI_SCAN_DIR',
 WEBAPPS_PYTHON_VERSIONS = Setting('WEBAPPS_PYTHON_VERSIONS', (
         ('3.4-uwsgi', 'Python 3.4 uWSGI'),
         ('2.7-uwsgi', 'Python 2.7 uWSGI'),
-))
+    ),
+    validators=[Setting.validate_choices]
+)
 
 
 WEBAPPS_DEFAULT_PYTHON_VERSION = Setting('WEBAPPS_DEFAULT_PYTHON_VERSION', '3.4-uwsgi',
@@ -153,7 +151,7 @@ WEBAPPS_UNDER_CONSTRUCTION_PATH = Setting('WEBAPPS_UNDER_CONSTRUCTION_PATH', '',
 
 
 
-WEBAPPS_PHP_DISABLED_FUNCTIONS = Setting('WEBAPPS_PHP_DISABLED_FUNCTION', [
+WEBAPPS_PHP_DISABLED_FUNCTIONS = Setting('WEBAPPS_PHP_DISABLED_FUNCTION', (
     'exec',
     'passthru',
     'shell_exec',
@@ -174,7 +172,7 @@ WEBAPPS_PHP_DISABLED_FUNCTIONS = Setting('WEBAPPS_PHP_DISABLED_FUNCTION', [
     'escapeshellcmd',
     'escapeshellarg',
     'dl'
-])
+))
 
 
 WEBAPPS_ENABLED_OPTIONS = Setting('WEBAPPS_ENABLED_OPTIONS', (

orchestra/contrib/webapps/types/cms.py

@@ -6,7 +6,7 @@ from django.utils.translation import ugettext_lazy as _
 from rest_framework import serializers
 
 from orchestra.contrib.databases.models import Database, DatabaseUser
-from orchestra.forms import widgets
+from orchestra.forms.widgets import SpanWidget
 from orchestra.utils.python import random_ascii
 
 from .php import PHPApp, PHPAppForm, PHPAppSerializer
@@ -30,13 +30,13 @@ class CMSAppForm(PHPAppForm):
             db_id = data.get('db_id')
             db_url = reverse('admin:databases_database_change', args=(db_id,))
             db_link = mark_safe('<a href="%s">%s</a>' % (db_url, db_name))
-            self.fields['db_name'].widget = widgets.ReadOnlyWidget(db_name, db_link)
+            self.fields['db_name'].widget = SpanWidget(original=db_name, display=db_link)
             # DB user link
             db_user = data.get('db_user')
             db_user_id = data.get('db_user_id')
             db_user_url = reverse('admin:databases_databaseuser_change', args=(db_user_id,))
             db_user_link = mark_safe('<a href="%s">%s</a>' % (db_user_url, db_user))
-            self.fields['db_user'].widget = widgets.ReadOnlyWidget(db_user, db_user_link)
+            self.fields['db_user'].widget = SpanWidget(original=db_user, display=db_user_link)
 
 
 class CMSAppSerializer(PHPAppSerializer):

orchestra/contrib/websites/backends/apache.py

@@ -24,7 +24,7 @@ class Apache2Backend(ServiceController):
     model = 'websites.Website'
     related_models = (
         ('websites.Content', 'website'),
-        ('websites.WebsiteDirective', 'directives'),
+        ('websites.WebsiteDirective', 'website'),
         ('webapps.WebApp', 'website_set'),
     )
     verbose_name = _("Apache 2")

orchestra/contrib/websites/settings.py

@@ -6,40 +6,40 @@ from .. import websites
 
 
 WEBSITES_UNIQUE_NAME_FORMAT = Setting('WEBSITES_UNIQUE_NAME_FORMAT',
-    '%(user)s-%(site_name)s'
+    default='%(user)s-%(site_name)s'
 )
 
 
-# TODO 'http', 'https', 'https-only', 'http and https' and rename to PROTOCOL
+WEBSITES_PROTOCOL_CHOICES = Setting('WEBSITES_PROTOCOL_CHOICES',
-#WEBSITES_PORT_CHOICES = getattr(settings, 'WEBSITES_PORT_CHOICES', (
+    default=(
-#    (80, 'HTTP'),
-#    (443, 'HTTPS'),
-#))
-
-
-WEBSITES_PROTOCOL_CHOICES = Setting('WEBSITES_PROTOCOL_CHOICES', (
         ('http', "HTTP"),
         ('https', "HTTPS"),
         ('http/https', _("HTTP and HTTPS")),
         ('https-only', _("HTTPS only")),
-))
+    ),
+    validators=[Setting.validate_choices]
+)
 
-WEBSITES_DEFAULT_PROTOCOL = Setting('WEBSITES_DEFAULT_PROTOCOL', 'http',
+
+WEBSITES_DEFAULT_PROTOCOL = Setting('WEBSITES_DEFAULT_PROTOCOL',
+    default='http',
     choices=WEBSITES_PROTOCOL_CHOICES
 )
 
 
-WEBSITES_DEFAULT_IPS = Setting('WEBSITES_DEFAULT_IPS', (
+WEBSITES_DEFAULT_IPS = Setting('WEBSITES_DEFAULT_IPS',
-    '*',
+    default=('*',)
-))
-
-
-WEBSITES_DOMAIN_MODEL = Setting('WEBSITES_DOMAIN_MODEL',
-    'domains.Domain'
 )
 
 
-WEBSITES_ENABLED_DIRECTIVES = Setting('WEBSITES_ENABLED_DIRECTIVES', (
+WEBSITES_DOMAIN_MODEL = Setting('WEBSITES_DOMAIN_MODEL',
+    'domains.Domain',
+    validators=[Setting.validate_model_label]
+)
+
+
+WEBSITES_ENABLED_DIRECTIVES = Setting('WEBSITES_ENABLED_DIRECTIVES',
+    (
         'orchestra.contrib.websites.directives.Redirect',
         'orchestra.contrib.websites.directives.Proxy',
         'orchestra.contrib.websites.directives.ErrorDocument',

orchestra/core/validators.py

@@ -16,7 +16,7 @@ def all_valid(*args):
     if len(args) == 1:
         # Dict
         errors = {}
-        kwargs = args
+        kwargs = args[0]
         for field, validator in kwargs.items():
             try:
                 validator[0](*validator[1:])
@@ -36,7 +36,7 @@ def all_valid(*args):
 
 
 def validate_ipv4_address(value):
-    msg = _("%s is not a valid IPv4 address") % value
+    msg = _("Not a valid IPv4 address")
     try:
         ip = IP(value)
     except:
@@ -46,7 +46,7 @@ def validate_ipv4_address(value):
 
 
 def validate_ipv6_address(value):
-    msg = _("%s is not a valid IPv6 address") % value
+    msg = _("Not a valid IPv6 address")
     try:
         ip = IP(value)
     except:
@@ -56,7 +56,7 @@ def validate_ipv6_address(value):
 
 
 def validate_ip_address(value):
-    msg = _("%s is not a valid IP address") % value
+    msg = _("Not a valid IP address")
     try:
         IP(value)
     except:

orchestra/forms/options.py

@@ -81,11 +81,10 @@ class ReadOnlyFormMixin(object):
         for name in self.Meta.readonly_fields:
             field = self.fields[name]
             if not isinstance(field, SpanField):
+                if not isinstance(field.widget, SpanWidget):
                     field.widget = SpanWidget()
+                original = self.initial.get(name)
                 if hasattr(self, 'instance'):
-                    # Model form
+                    original = getattr(self.instance, name, original)
-                    original_value = getattr(self.instance, name)
+                field.widget.original = original
-                else:
-                    original_value = self.initial.get(name)
-                field.widget.original_value = original_value
 

orchestra/forms/widgets.py

@@ -7,7 +7,7 @@ from django.utils.encoding import force_text
 
 from django.contrib.admin.templatetags.admin_static import static
 
-# TODO rename readonlywidget
+
 class SpanWidget(forms.Widget):
     """
     Renders a value wrapped in a <span> tag.
@@ -15,74 +15,29 @@ class SpanWidget(forms.Widget):
     """
     def __init__(self, *args, **kwargs):
         self.tag = kwargs.pop('tag', '<span>')
+        self.original = kwargs.pop('original', '')
+        self.display = kwargs.pop('display', None)
         super(SpanWidget, self).__init__(*args, **kwargs)
     
     def render(self, name, value, attrs=None):
         final_attrs = self.build_attrs(attrs, name=name)
-        original_value = self.original_value
+        original = self.original or value
+        display = original if self.display is None else self.display
         # Display icon
-        if isinstance(original_value, bool):
+        if isinstance(original, bool):
-            icon = static('admin/img/icon-%s.gif' % ('yes' if original_value else 'no',))
+            icon = static('admin/img/icon-%s.gif' % ('yes' if original else 'no',))
-            return mark_safe('<img src="%s" alt="%s">' % (icon, str(original_value)))
+            return mark_safe('<img src="%s" alt="%s">' % (icon, str(display)))
         tag = self.tag[:-1]
         endtag = '/'.join((self.tag[0], self.tag[1:]))
-        return mark_safe('%s%s >%s%s' % (tag, forms.util.flatatt(final_attrs), original_value, endtag))
+        return mark_safe('%s%s >%s%s' % (tag, forms.util.flatatt(final_attrs), display, endtag))
     
     def value_from_datadict(self, data, files, name):
-        return self.original_value
+        return self.original
     
     def _has_changed(self, initial, data):
         return False
 
 
-class ShowTextWidget(forms.Widget):
-    def __init__(self, *args, **kwargs):
-        for kwarg in ['tag', 'warning', 'hidden']:
-            setattr(self, kwarg, kwargs.pop(kwarg, False))
-        super(ShowTextWidget, self).__init__(*args, **kwargs)
-    
-    def render(self, name, value, attrs):
-        value = force_text(value)
-        if value is None:
-            return ''
-        if hasattr(self, 'initial'):
-            value = self.initial
-        if self.tag:
-            endtag = '/'.join((self.tag[0], self.tag[1:]))
-            final_value = ''.join((self.tag, value, endtag))
-        else:
-            final_value = '<br/>'.join(value.split('\n'))
-        if self.warning:
-            final_value = (
-                '<ul class="messagelist"><li class="warning">%s</li></ul>'
-                % final_value)
-        if self.hidden:
-            final_value = (
-                '%s<input type="hidden" name="%s" value="%s"/>'
-                % (final_value, name, value))
-        return mark_safe(final_value)
-    
-    def _has_changed(self, initial, data):
-        return False
-
-
-class ReadOnlyWidget(forms.Widget):
-    def __init__(self, *args):
-        if len(args) == 1:
-            args = (args[0], args[0])
-        self.original_value = args[0]
-        self.display_value = args[1]
-        super(ReadOnlyWidget, self).__init__()
-    
-    def render(self, name, value, attrs=None):
-        if self.display_value is not None:
-            return mark_safe(self.display_value)
-        return mark_safe(self.original_value)
-    
-    def value_from_datadict(self, data, files, name):
-        return self.original_value
-
-
 def paddingCheckboxSelectMultiple(padding):
     """ Ugly hack to render this widget nicely on Django admin """
     widget = forms.CheckboxSelectMultiple()

orchestra/plugins/forms.py

@@ -1,7 +1,7 @@
 from django import forms
 from django.utils.encoding import force_text
 
-from orchestra.forms.widgets import ReadOnlyWidget
+from orchestra.forms.widgets import SpanWidget
 
 
 class PluginDataForm(forms.ModelForm):
@@ -12,7 +12,7 @@ class PluginDataForm(forms.ModelForm):
         if self.plugin_field in self.fields:
             value = self.plugin.get_name()
             display = '%s <a href=".">change</a>' % force_text(self.plugin.verbose_name)
-            self.fields[self.plugin_field].widget = ReadOnlyWidget(value, display)
+            self.fields[self.plugin_field].widget = SpanWidget(original=value, display=display)
             help_text = self.fields[self.plugin_field].help_text
             self.fields[self.plugin_field].help_text = getattr(self.plugin, 'help_text', help_text)
         if self.instance:
@@ -34,7 +34,7 @@ class PluginDataForm(forms.ModelForm):
                     if foo_display:
                         display = foo_display()
                     self.fields[field].required = False
-                    self.fields[field].widget = ReadOnlyWidget(value, display)
+                    self.fields[field].widget = SpanWidget(original=value, display=display)
     
     def clean(self):
         super(PluginDataForm, self).clean()

orchestra/settings.py

@@ -1,16 +1,21 @@
+import re
+import sys
 from collections import OrderedDict
 
 from django.conf import settings
-from django.core.exceptions import ValidationError
+from django.core.exceptions import ValidationError, AppRegistryNotReady
+from django.db.models import get_model
+from django.utils.functional import Promise
 from django.utils.translation import ugettext_lazy as _
 
+from orchestra.utils.python import import_class, format_exception
+
 from .core import validators
 
 
 class Setting(object):
     """
-    Keeps track of the defined settings.
+    Keeps track of the defined settings and provides extra batteries like value validation.
-    Instances of this class are the native value of the setting.
     """
     conf_settings = settings
     settings = OrderedDict()
@@ -23,12 +28,12 @@ class Setting(object):
         value = ("'%s'" if isinstance(value, str) else '%s') % value
         return '<%s: %s>' % (self.name, value)
     
-    def __new__(cls, name, default, help_text="", choices=None, editable=True, multiple=False,
+    def __new__(cls, name, default, help_text="", choices=None, editable=True, serializable=True,
-                validators=[], types=[], call_init=False):
+                multiple=False, validators=[], types=[], call_init=False):
         if call_init:
             return super(Setting, cls).__new__(cls)
-        cls.settings[name] = cls(name, default, help_text=help_text, choices=choices,
+        cls.settings[name] = cls(name, default, help_text=help_text, choices=choices, editable=editable,
-            editable=editable, multiple=multiple, validators=validators, types=types, call_init=True)
+            serializable=serializable, multiple=multiple, validators=validators, types=types, call_init=True)
         return cls.get_value(name, default)
     
     def __init__(self, *args, **kwargs):
@@ -36,10 +41,66 @@ class Setting(object):
         for name, value in kwargs.items():
             setattr(self, name, value)
         self.value = self.get_value(self.name, self.default)
+        try:
             self.validate_value(self.value)
+        except ValidationError as exc:
+            # Init time warning
+            sys.stderr.write("Error validating setting %s with value %s\n" % (self.name, self.value))
+            sys.stderr.write(format_exception(exc))
+            raise exc
+        except AppRegistryNotReady:
+            # lazy bastards
+            pass
         self.settings[name] = self
     
+    @classmethod
+    def validate_choices(cls, value):
+        if not isinstance(value, (list, tuple)):
+            raise ValidationError("%s is not a valid choices." % str(value))
+        for choice in value:
+            if not isinstance(choice, (list, tuple)) or len(choice) != 2:
+                raise ValidationError("%s is not a valid choice." % str(choice))
+            value, verbose = choice
+            if not isinstance(verbose, (str, Promise)):
+                raise ValidationError("%s is not a valid verbose name." % value)
+    
+    @classmethod
+    def validate_import_class(cls, value):
+        try:
+            import_class(value)
+        except ImportError as exc:
+            if "cannot import name 'settings'" in str(exc):
+                # circular dependency on init time
+                pass
+        except Exception as exc:
+            raise ValidationError(format_exception(exc))
+    
+    @classmethod
+    def validate_model_label(cls, value):
+        try:
+            get_model(*value.split('.'))
+        except AppRegistryNotReady:
+            # circular dependency on init time
+            pass
+        except Exception as exc:
+            raise ValidationError(format_exception(exc))
+    
+    @classmethod
+    def string_format_validator(cls, names, modulo=True):
+        def validate_string_format(value, names=names, modulo=modulo):
+            errors = []
+            regex = r'%\(([^\)]+)\)' if modulo else r'{([^}]+)}'
+            for n in re.findall(regex, value):
+                if n not in names:
+                    errors.append(
+                        ValidationError('%s is not a valid format name.' % n)
+                    )
+            if errors:
+                raise ValidationError(errors)
+        return validate_string_format
+    
     def validate_value(self, value):
+        if value:
             validators.all_valid(value, self.validators)
         valid_types = list(self.types)
         if isinstance(self.default, (list, tuple)):
@@ -56,48 +117,61 @@ class Setting(object):
 
 
 ORCHESTRA_BASE_DOMAIN = Setting('ORCHESTRA_BASE_DOMAIN',
-    'orchestra.lan'
+    'orchestra.lan',
+    help_text=("Base domain name used for other settings.<br>"
+               "If you're editing the settings via the admin interface <b>it is advisable to "
+               "commit this change before changing any other variables which could be affected</b>.")
 )
 
 
-ORCHESTRA_SITE_URL = Setting('ORCHESTRA_SITE_URL', 'https://orchestra.%s' % ORCHESTRA_BASE_DOMAIN,
+ORCHESTRA_SITE_URL = Setting('ORCHESTRA_SITE_URL',
+    'https://orchestra.%s' % ORCHESTRA_BASE_DOMAIN,
     help_text=_("Domain name used when it will not be possible to infere the domain from a request."
                 "For example in periodic tasks.")
 )
 
 
-ORCHESTRA_SITE_NAME = Setting('ORCHESTRA_SITE_NAME', 'orchestra')
+ORCHESTRA_SITE_NAME = Setting('ORCHESTRA_SITE_NAME',
+    'orchestra',
+)
 
 
 ORCHESTRA_SITE_VERBOSE_NAME = Setting('ORCHESTRA_SITE_VERBOSE_NAME',
-    _("%s Hosting Management" % ORCHESTRA_SITE_NAME.capitalize())
+    _("%s Hosting Management" % ORCHESTRA_SITE_NAME.capitalize()),
 )
 
 
 # Service management commands
 
-ORCHESTRA_START_SERVICES = Setting('ORCHESTRA_START_SERVICES', (
+ORCHESTRA_START_SERVICES = Setting('ORCHESTRA_START_SERVICES',
+    default=(
         'postgresql',
         'celeryevcam',
         'celeryd',
         'celerybeat',
         ('uwsgi', 'nginx'),
-))
+    ),
+)
 
 
-ORCHESTRA_RESTART_SERVICES = Setting('ORCHESTRA_RESTART_SERVICES', (
+ORCHESTRA_RESTART_SERVICES = Setting('ORCHESTRA_RESTART_SERVICES',
+    default=(
         'celeryd',
         'celerybeat',
         'uwsgi'
-))
+    ),
+)
 
-ORCHESTRA_STOP_SERVICES = Setting('ORCHESTRA_STOP_SERVICES', (
+
+ORCHESTRA_STOP_SERVICES = Setting('ORCHESTRA_STOP_SERVICES', 
+    default=(
         ('uwsgi', 'nginx'),
         'celerybeat',
         'celeryd',
         'celeryevcam',
         'postgresql'
-))
+    ),
+)
 
 
 ORCHESTRA_API_ROOT_VIEW = Setting('ORCHESTRA_API_ROOT_VIEW',
@@ -110,4 +184,6 @@ ORCHESTRA_DEFAULT_SUPPORT_FROM_EMAIL = Setting('ORCHESTRA_DEFAULT_SUPPORT_FROM_E
 )
 
 
-ORCHESTRA_EDIT_SETTINGS = Setting('ORCHESTRA_EDIT_SETTINGS', True)
+ORCHESTRA_EDIT_SETTINGS = Setting('ORCHESTRA_EDIT_SETTINGS',
+    True
+)

orchestra/utils/python.py

@@ -16,6 +16,11 @@ def random_ascii(length):
     return ''.join([random.SystemRandom().choice(string.hexdigits) for i in range(0, length)]).lower()
 
 
+def format_exception(exception):
+    name = type(exception).__name__
+    return ': '.join((name, str(exception)))
+
+
 class OrderedSet(collections.MutableSet):
     def __init__(self, iterable=None):
         self.end = end = []