registration-optional: Allow to hide some optional registration fields

Allow to control which of the optional fields from the registration page
are being displayed to the user. Added the configuration variable
`REGISTRATION_OPTIONAL_FIELDS` to control which ones. The default value
shows all the fields as currently; to not display some of the fields,
set the configuration variable with only the fields you want to display:

```
REGISTRATION_OPTIONAL_FIELDS = [
    'level_of_education',
    'gender',
    'year_of_birth',
    'mailing_address',
    'goals'
]
```

lms/envs/aws.py

@@ -119,6 +119,7 @@ EMAIL_USE_TLS = ENV_TOKENS.get('EMAIL_USE_TLS', False)  # django default is Fals
 SITE_NAME = ENV_TOKENS['SITE_NAME']
 SESSION_ENGINE = ENV_TOKENS.get('SESSION_ENGINE', SESSION_ENGINE)
 SESSION_COOKIE_DOMAIN = ENV_TOKENS.get('SESSION_COOKIE_DOMAIN')
+REGISTRATION_OPTIONAL_FIELDS = ENV_TOKENS.get('REGISTRATION_OPTIONAL_FIELDS', REGISTRATION_OPTIONAL_FIELDS)
 
 CMS_BASE = ENV_TOKENS.get('CMS_BASE', 'studio.edx.org')
 

lms/envs/common.py

@@ -1044,3 +1044,14 @@ if MITX_FEATURES.get('AUTH_USE_CAS'):
     )
     INSTALLED_APPS += ('django_cas',)
     MIDDLEWARE_CLASSES += ('django_cas.middleware.CASMiddleware',)
+
+###################### Registration ##################################
+
+# Remove some of the fields from the list to not display them
+REGISTRATION_OPTIONAL_FIELDS = set([
+    'level_of_education',
+    'gender',
+    'year_of_birth',
+    'mailing_address',
+    'goals',
+])

lms/templates/register.html

@@ -185,6 +185,7 @@
         <h2 class="sr">${_("Optional Personal Information")}</h2>
 
         <ol class="list-input">
+          % if 'level_of_education' in settings.REGISTRATION_OPTIONAL_FIELDS:
           <li class="field-group">
             <div class="field select" id="field-education-level">
               <label for="education-level">${_("Highest Level of Education Completed")}</label>
@@ -195,7 +196,10 @@
                 %endfor
               </select>
             </div>
-
+          </li>
+          % endif
+          % if 'gender' in settings.REGISTRATION_OPTIONAL_FIELDS:
+          <li class="field-group">
             <div class="field select" id="field-gender">
               <label for="gender">${_("Gender")}</label>
               <select id="gender" name="gender">
@@ -205,7 +209,10 @@
                 %endfor
               </select>
             </div>
-
+          </li>
+          % endif
+          % if 'year_of_birth' in settings.REGISTRATION_OPTIONAL_FIELDS:
+          <li class="field-group">
             <div class="field select" id="field-yob">
               <label for="yob">${_("Year of Birth")}</label>
               <select id="yob" name="year_of_birth">
@@ -215,6 +222,7 @@
                 %endfor
               </select>
             </div>
+            % endif
           </li>
         </ol>
       </div>
@@ -223,15 +231,19 @@
         <h2 class="sr">${_("Optional Personal Information")}</h2>
 
         <ol class="list-input">
+          % if 'mailing_address' in settings.REGISTRATION_OPTIONAL_FIELDS:
           <li class="field text" id="field-address-mailing">
             <label for="address-mailing">${_("Mailing Address")}</label>
             <textarea id="address-mailing" name="mailing_address" value=""></textarea>
           </li>
+          % endif
 
+          % if 'goals' in settings.REGISTRATION_OPTIONAL_FIELDS:
           <li class="field text" id="field-goals">
             <label for="goals">${_("Please share with us your reasons for registering with {platform_name}").format(platform_name=settings.PLATFORM_NAME)}</label>
             <textarea id="goals" name="goals" value=""></textarea>
           </li>
+          % endif
         </ol>
       </div>
 

lms/templates/signup_modal.html

@@ -1,6 +1,7 @@
 <%! from django.utils.translation import ugettext as _ %>
 
 <%namespace name='static' file='static_content.html'/>
+<%! from django.conf import settings %>
 <%! from django.core.urlresolvers import reverse %>
 <%! from django_countries.countries import COUNTRIES %>
 <%! from student.models import UserProfile %>
@@ -57,6 +58,8 @@
         </div>
 
         <div class="input-group">
+
+          % if 'level_of_education' in settings.REGISTRATION_OPTIONAL_FIELDS:
           <section class="citizenship">
             <label data-field="level_of_education" for="signup_ed_level">${_("Ed. Completed")}</label>
             <div class="input-wrapper">
@@ -68,7 +71,9 @@
               </select>
             </div>
           </section>
+          % endif
 
+          % if 'gender' in settings.REGISTRATION_OPTIONAL_FIELDS:
           <section class="gender">
             <label data-field="gender" for="signup_gender">${_("Gender")}</label>
             <div class="input-wrapper">
@@ -80,7 +85,9 @@
               </select>
             </div>
           </section>
+          % endif
 
+          % if 'year_of_birth' in settings.REGISTRATION_OPTIONAL_FIELDS:
           <section class="date-of-birth">
             <label data-field="date-of-birth" for="signup_birth_year">${_("Year of birth")}</label>
             <div class="input-wrapper">
@@ -93,12 +100,17 @@
               ##<input name="year_of_birth" type="text" placeholder="Year of birth">
             </div>
           </section>
+          % endif
 
+          % if 'mailing_address' in settings.REGISTRATION_OPTIONAL_FIELDS:
           <label data-field="mailing_address" for="signup_mailing_address">${_("Mailing address")}</label>
 	    <textarea id="signup_mailing_address" name="mailing_address"></textarea>
+          % endif
 
+          % if 'goals' in settings.REGISTRATION_OPTIONAL_FIELDS:
           <label data-field="goals" for="signup_goals">${_("Goals in signing up for {platform_name}").format(platform_name=settings.PLATFORM_NAME)}</label>
 	    <textarea name="goals" id="signup_goals"></textarea>
+          % endif
 
         </div>