add last_used field to UserKey

This requires a South migration to label 0002

django_sshkey/migrations/0002_auto__add_field_userkey_last_used.py

+# encoding: utf-8
+import datetime
+from south.db import db
+from south.v2 import SchemaMigration
+from django.db import models
+
+class Migration(SchemaMigration):
+
+    def forwards(self, orm):
+        
+        # Adding field 'UserKey.last_used'
+        db.add_column('sshkey_userkey', 'last_used', self.gf('django.db.models.fields.DateTimeField')(null=True), keep_default=False)
+
+
+    def backwards(self, orm):
+        
+        # Deleting field 'UserKey.last_used'
+        db.delete_column('sshkey_userkey', 'last_used')
+
+
+    models = {
+        'auth.group': {
+            'Meta': {'object_name': 'Group'},
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '80'}),
+            'permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'})
+        },
+        'auth.permission': {
+            'Meta': {'ordering': "('content_type__app_label', 'content_type__model', 'codename')", 'unique_together': "(('content_type', 'codename'),)", 'object_name': 'Permission'},
+            'codename': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['contenttypes.ContentType']"}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '50'})
+        },
+        'auth.user': {
+            'Meta': {'object_name': 'User'},
+            'date_joined': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
+            'email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'blank': 'True'}),
+            'first_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
+            'groups': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Group']", 'symmetrical': 'False', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
+            'is_staff': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'is_superuser': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
+            'last_login': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
+            'last_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
+            'password': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
+            'user_permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'}),
+            'username': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'})
+        },
+        'contenttypes.contenttype': {
+            'Meta': {'ordering': "('name',)", 'unique_together': "(('app_label', 'model'),)", 'object_name': 'ContentType', 'db_table': "'django_content_type'"},
+            'app_label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'model': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '100'})
+        },
+        'django_sshkey.userkey': {
+            'Meta': {'unique_together': "[('user', 'name')]", 'object_name': 'UserKey', 'db_table': "'sshkey_userkey'"},
+            'created': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'null': 'True', 'blank': 'True'}),
+            'fingerprint': ('django.db.models.fields.CharField', [], {'db_index': 'True', 'max_length': '47', 'blank': 'True'}),
+            'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
+            'key': ('django.db.models.fields.TextField', [], {'max_length': '2000'}),
+            'last_modified': ('django.db.models.fields.DateTimeField', [], {'auto_now': 'True', 'null': 'True', 'blank': 'True'}),
+            'last_used': ('django.db.models.fields.DateTimeField', [], {'null': 'True'}),
+            'name': ('django.db.models.fields.CharField', [], {'max_length': '50', 'blank': 'True'}),
+            'user': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['auth.User']"})
+        }
+    }
+
+    complete_apps = ['django_sshkey']

django_sshkey/models.py

@@ -38,6 +38,7 @@ class UserKey(models.Model):
   fingerprint = models.CharField(max_length=47, blank=True, db_index=True)
   created = models.DateTimeField(auto_now_add=True, null=True)
   last_modified = models.DateTimeField(auto_now=True, null=True)
+  last_used = models.DateTimeField(null=True)
 
   class Meta:
     db_table = 'sshkey_userkey'
@@ -92,3 +93,7 @@ class UserKey(models.Model):
     if f == 'PEM':
       return pubkey.format_pem()
     raise ValueError("Invalid format")
+
+  def touch(self):
+    import datetime
+    self.last_used = datetime.datetime.now()

django_sshkey/tests.py

@@ -174,6 +174,21 @@ class UserKeyCreationTestCase(BaseTestCase):
     key.save()
     self.assertEqual(key.fingerprint, fingerprint)
 
+  def test_touch(self):
+    import datetime
+    key = UserKey(
+      user = self.user1,
+      name = 'name',
+      key = open(self.key1_path+'.pub').read(),
+    )
+    key.full_clean()
+    key.save()
+    self.assertIsNone(key.last_used)
+    key.touch()
+    key.save()
+    self.assertIsInstance(key.last_used, datetime.datetime)
+    key.touch()
+
   def test_same_name_same_user(self):
     key1 = UserKey(
       user = self.user1,