define some blank fields, and report correct entity name

campaign/campaign/models.py

@@ -8,8 +8,11 @@ class Contact(models.Model):
     first_name = models.CharField(max_length=64)
     last_name = models.CharField(max_length=64)
     phone = models.CharField(max_length=32)
-    twitter = models.CharField(max_length=64)
-    mail = models.CharField(max_length=255)
+    twitter = models.CharField(max_length=64, blank=True)
+    mail = models.CharField(max_length=255, blank=True)
+
+    def __unicode__(self):
+        return '%s %s' % (self.first_name, self.last_name)
 
 
 class Group(models.Model):
@@ -17,20 +20,26 @@ class Group(models.Model):
     id = models.AutoField(primary_key=True)
     organisation_id = models.ForeignKey(Organization)
     name = models.CharField(max_length=64)
-    type = models.CharField(max_length=255)
-    media = models.CharField(max_length=255)
+    type = models.CharField(max_length=255, blank=True)
+    media = models.CharField(max_length=255, blank=True)
     contacts = models.ManyToManyField(Contact)
 
+    def __unicode__(self):
+        return self.name
+
 
 class Campaign(models.Model):
     """Campaign model, describe what have to be achieved"""
     id = models.AutoField(primary_key=True)
     title = models.CharField(max_length=255)
-    description = models.CharField(max_length=512)
+    description = models.CharField(max_length=512, blank=True)
     start_date = models.DateTimeField()
     end_date = models.DateTimeField()
     default_lang = models.CharField(max_length=5)
 
+    def __unicode__(self):
+        return self.title
+
 
 class Argumentary(models.Model):
     id = models.AutoField(primary_key=True)

campaign/organization/models.py

@@ -6,4 +6,7 @@ class Organization(models.Model):
     id = models.AutoField(primary_key=True)
     name = models.CharField(max_length=64)
     sip_key = models.CharField(max_length=255)
-    users = models.ForeignKey(User)
+    users = models.ForeignKey(User, blank=True)
+
+    def __unicode__(self):
+        return self.name