Fix : autorise blank pour message mail adhésion

preferences/migrations/0064_auto_20191008_1335.py

@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.23 on 2019-10-08 11:35
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('preferences', '0063_mandate'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='mailmessageoption',
+            name='welcome_mail_en',
+            field=models.TextField(blank=True, default='', help_text='Welcome email in English'),
+        ),
+        migrations.AlterField(
+            model_name='mailmessageoption',
+            name='welcome_mail_fr',
+            field=models.TextField(blank=True, default='', help_text='Welcome email in French'),
+        ),
+    ]

preferences/models.py

@@ -616,8 +616,16 @@ def homeoption_post_save(**kwargs):
 class MailMessageOption(AclMixin, models.Model):
     """Reglages, mail de bienvenue et autre"""
 
-    welcome_mail_fr = models.TextField(default="", help_text=_("Welcome email in French"))
-    welcome_mail_en = models.TextField(default="", help_text=_("Welcome email in English"))
+    welcome_mail_fr = models.TextField(
+        default="",
+        blank=True,
+        help_text=_("Welcome email in French")
+    )
+    welcome_mail_en = models.TextField(
+        default="",
+        blank=True,
+        help_text=_("Welcome email in English")
+    )
 
     class Meta:
         permissions = (