Add flag to enable/disable per-domain limits.

see #799

modoboa/limits/app_settings.py

@@ -3,7 +3,7 @@
 from django import forms
 from django.utils.translation import ugettext_lazy as _
 
-from modoboa.lib.form_utils import SeparatorField
+from modoboa.lib.form_utils import SeparatorField, YesNoField
 from modoboa.lib.parameters import AdminParametersForm
 
 
@@ -67,6 +67,12 @@ class ParametersForm(AdminParametersForm):
 
     domain_limits_sep = SeparatorField(label=_("Default per-domain limits"))
 
+    enable_domain_limits = YesNoField(
+        label=_("Enable per-domain limits"),
+        initial="no",
+        help_text=_("Enable or disable per-domain limits")
+    )
+
     # deflt_domain_domain_admins_limit = forms.IntegerField(
     #     label=_("Domain admins"),
     #     initial=0,
@@ -110,6 +116,12 @@ class ParametersForm(AdminParametersForm):
             attrs={"class": "col-md-1 form-control"})
     )
 
+    visibility_rules = {
+        "deflt_domain_mailboxes_limit": "enable_domain_limits=yes",
+        "deflt_domain_mailbox_aliases_limit": "enable_domain_limits=yes",
+        "deflt_domain_domain_aliases_limit": "enable_domain_limits=yes",
+    }
+
     def __init__(self, *args, **kwargs):
         super(AdminParametersForm, self).__init__(*args, **kwargs)
         self._load_extra_parameters('A')

modoboa/limits/general_callbacks.py

@@ -2,7 +2,7 @@
 
 from django.utils.translation import ugettext as _
 
-from modoboa.lib import events
+from modoboa.lib import events, parameters
 
 from . import forms
 from . import utils
@@ -53,6 +53,8 @@ def extra_account_form(user, account=None):
 @events.observe("ExtraDomainForm")
 def extra_domain_form(user, domain):
     """Include domain limits form."""
+    if parameters.get_admin("ENABLE_DOMAIN_LIMITS") == "no":
+        return []
     if not user.has_perm("admin.change_domain"):
         return []
     return [{
@@ -64,6 +66,8 @@ def extra_domain_form(user, domain):
 @events.observe("FillDomainInstances")
 def fill_domain_instances(user, domain, instances):
     """Set domain instance for resources form."""
+    if parameters.get_admin("ENABLE_DOMAIN_LIMITS") == "no":
+        return
     if not user.has_perm("admin.change_domain"):
         return
     instances["resources"] = domain

modoboa/limits/handlers.py

@@ -24,6 +24,8 @@ def check_object_limit(sender, context, object_type, **kwargs):
             return True
         limit = context.userobjectlimit_set.get(name=object_type)
     elif context.__class__.__name__ == "Domain":
+        if parameters.get_admin("ENABLE_DOMAIN_LIMITS") == "no":
+            return
         limit = context.domainobjectlimit_set.get(name=object_type)
     else:
         raise NotImplementedError