feat(nomcom): Allow nomcom chair to turn volunteer acceptance on and off (ietf-tools#4251)

* feat(nomcom): Allow nomcom chair to turn volunteer acceptance on and off
Fixes ietf-tools#4105
Also allows chair to set date of first call for volunteers. If this should be read-only and set by the code, let me know.

* fix(nomcom): Correct helptext for accepting volunteers

Author: jimfenton

ietf/nomcom/forms.py

@@ -120,7 +120,7 @@ def __init__(self, *args, **kwargs):
     class Meta:
         model = NomCom
         fields = ('public_key', 'initial_text', 'show_nominee_pictures', 'show_accepted_nominees',
-                  'send_questionnaire', 'reminder_interval')
+                  'send_questionnaire', 'is_accepting_volunteers', 'first_call_for_volunteers', 'reminder_interval')
         widgets = {'public_key':FileInput, }
 
     def clean_public_key(self):

ietf/nomcom/migrations/0013_update_accepting_volunteers_helptext.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.2.28 on 2022-07-23 13:14
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('nomcom', '0012_populate_volunteers'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='nomcom',
+            name='is_accepting_volunteers',
+            field=models.BooleanField(default=False, help_text='Is this nomcom currently accepting volunteers?', verbose_name='Accepting volunteers'),
+        ),
+    ]

ietf/nomcom/models.py

@@ -60,7 +60,7 @@ class NomCom(models.Model):
     show_accepted_nominees = models.BooleanField(verbose_name='Show accepted nominees', default=True, 
                                                  help_text='Show accepted nominees on the public nomination page')
     is_accepting_volunteers = models.BooleanField(verbose_name="Accepting volunteers", default=False,
-                                                  help_text='Is this nomcom is currently accepting volunteers?')
+                                                  help_text='Is this nomcom currently accepting volunteers?')
     first_call_for_volunteers = models.DateField(verbose_name='Date of the first call for volunteers', blank=True, null=True)
 
     class Meta: