zerver/models.py: Change custom field name max length to 40 char.

zerver/migrations/0183_change_custom_field_name_max_length.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.14 on 2018-08-16 18:10
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('zerver', '0182_set_initial_value_is_private_flag'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='customprofilefield',
+            name='name',
+            field=models.CharField(max_length=40),
+        ),
+    ]

zerver/models.py

@@ -2246,9 +2246,10 @@ class CustomProfileField(models.Model):
     these fields.
     """
     HINT_MAX_LENGTH = 80
+    NAME_MAX_LENGTH = 40
 
     realm = models.ForeignKey(Realm, on_delete=CASCADE)  # type: Realm
-    name = models.CharField(max_length=100)  # type: str
+    name = models.CharField(max_length=NAME_MAX_LENGTH)  # type: str
     hint = models.CharField(max_length=HINT_MAX_LENGTH, default='', null=True)  # type: Optional[str]
     order = models.IntegerField(default=0)  # type: int