Possibility to import domain aliases.

see #317

modoboa/admin/models.py

@@ -513,7 +513,30 @@ class DomainAlias(DatesAware):
         ungrant_access_to_object(self)
         super(DomainAlias, self).delete()
 
+    def from_csv(self, user, row):
+        """Create a domain alias from a CSV row
+
+        Expected format: ["domainalias", domain alias name, targeted domain]
+        
+        :param user: a ``User`` object
+        :param row: a list containing the alias definition
+        """
+        if len(row) < 3:
+            raise AdminError(_("Invalid line"))
+        self.name = row[1].strip()
+        domname = row[2].strip()
+        try:
+            self.target = Domain.objects.get(name=domname)
+        except Domain.DoesNotExist:
+            raise AdminError(_("Unknown domain %s" % domname))
+        self.enabled = True
+        self.save()
+
     def to_csv(self, csvwriter):
+        """Export a domain alias using CSV format
+
+        :param csvwriter: a ``csv.writer`` object
+        """
         csvwriter.writerow(["domainalias", self.name, self.target.name])
 
 class Mailbox(DatesAware):

modoboa/admin/views.py

@@ -560,6 +560,13 @@ def import_domain(user, row):
     grant_access_to_object(user, dom, is_owner=True)
     events.raiseEvent("CreateDomain", user, dom)
 
+def import_domainalias(user, row):
+    """Specific code for domain aliases import"""
+    domalias = DomainAlias()
+    domalias.from_csv(user, row)
+    grant_access_to_object(user, domalias, is_owner=True)
+    events.raiseEvent("DomainAliasCreated", user, domalias)
+
 def import_account(user, row):
     """Specific code for accounts import"""
     mb = Mailbox()
@@ -634,7 +641,7 @@ def import_identities(request):
     if request.method == "POST":
         return importdata(request)
 
-    helptext = _("""Provide a CSV file where lines respect one of the following format:
+    helptext = _("""Provide a CSV file where lines respect one of the following formats:
 <ul>
 <li><em>account; loginname; password; first name; last name; address</em></li>
 <li><em>alias; address; internal recipient</em></li>
@@ -691,11 +698,12 @@ def import_domains(request):
     if request.method == "POST":
         return importdata(request)
 
-    helptext = _("""Provide a CSV file where lines respect the following format:
+    helptext = _("""Provide a CSV file where lines respect one of the following formats:
 <ul>
   <li><em>domain; name; quota</em></li>
+  <li><em>domainalias; name; targeted domain</em></li>
 </ul>
-<p>The <em>domain</em> keyword must be present for each line.</p>
+<p>The first element of each line is mandatory and must be equal to one of the previous values.</p>
 <p>You can use a different character as separator.</p>
 """)