Added language field to certificate template

lms/djangoapps/certificates/admin.py

 """
 django admin pages for certificates models
 """
+from operator import itemgetter
+
 from config_models.admin import ConfigurationModelAdmin
 from django import forms
+from django.conf import settings
 from django.contrib import admin
 
 from certificates.models import (
@@ -28,6 +31,12 @@ class CertificateTemplateForm(forms.ModelForm):
         self.fields['organization_id'] = forms.TypedChoiceField(
             choices=org_choices, required=False, coerce=int, empty_value=None
         )
+        languages = settings.CERTIFICATE_TEMPLATE_LANGUAGES.items()
+        lang_choices = sorted(languages, key=itemgetter(1))
+        lang_choices.insert(0, (None, 'All Languages'))
+        self.fields['language'] = forms.ChoiceField(
+            choices=lang_choices, required=False
+        )
 
     class Meta(object):
         model = CertificateTemplate

lms/djangoapps/certificates/migrations/0010_certificatetemplate_language.py

+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('certificates', '0009_certificategenerationcoursesetting_language_self_generation'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='certificatetemplate',
+            name='language',
+            field=models.CharField(help_text='Only certificates for courses in the selected language will be rendered using this template. Course language is determined by the first two letters of the language code.', max_length=2, null=True, blank=True),
+        ),
+    ]

lms/djangoapps/certificates/models.py

@@ -1050,6 +1050,12 @@ class CertificateTemplate(TimeStampedModel):
         help_text=_(u'On/Off switch.'),
         default=False,
     )
+    language = models.CharField(
+        max_length=2,
+        blank=True,
+        null=True,
+        help_text=u'Only certificates for courses in the selected language will be rendered using this template. Course language is determined by the first two letters of the language code.'
+    )
 
     def __unicode__(self):
         return u'%s' % (self.name, )

lms/envs/aws.py

@@ -329,6 +329,7 @@ TIME_ZONE = ENV_TOKENS.get('TIME_ZONE', TIME_ZONE)
 
 # Translation overrides
 LANGUAGES = ENV_TOKENS.get('LANGUAGES', LANGUAGES)
+CERTIFICATE_TEMPLATE_LANGUAGES = ENV_TOKENS.get('CERTIFICATE_TEMPLATE_LANGUAGES', CERTIFICATE_TEMPLATE_LANGUAGES)
 LANGUAGE_DICT = dict(LANGUAGES)
 LANGUAGE_CODE = ENV_TOKENS.get('LANGUAGE_CODE', LANGUAGE_CODE)
 LANGUAGE_COOKIE = ENV_TOKENS.get('LANGUAGE_COOKIE', LANGUAGE_COOKIE)

lms/envs/common.py

@@ -996,6 +996,9 @@ LANGUAGES = (
 
 LANGUAGE_DICT = dict(LANGUAGES)
 
+# Languages supported for custom course certificate templates
+CERTIFICATE_TEMPLATE_LANGUAGES = {}
+
 USE_I18N = True
 USE_L10N = True