Improving logging over generate cert button on progress page.

EDUCATOR-2017.

openedx/core/djangoapps/certificates/api.py

 """
 The public API for certificates.
 """
+import logging
 from datetime import datetime
 
 from pytz import UTC
@@ -9,6 +10,7 @@ from certificates.models import CertificateWhitelist
 from openedx.core.djangoapps.certificates.config import waffle
 from student.models import CourseEnrollment
 
+log = logging.getLogger(__name__)
 
 SWITCHES = waffle.waffle()
 
@@ -56,10 +58,33 @@ def is_certificate_valid(certificate):
 
 def can_show_certificate_message(course, student, course_grade, certificates_enabled_for_course):
     is_whitelisted = CertificateWhitelist.objects.filter(user=student, course_id=course.id, whitelist=True).exists()
+    auto_cert_gen_enabled = auto_certificate_generation_enabled()
+    has_active_enrollment = CourseEnrollment.is_enrolled(student, course.id)
+    certificates_are_viewable = certificates_viewable_for_course(course)
+
+    # Adding a temporary logging for EDUCATOR-2017.
+    if unicode(course.id) == u'course-v1:RITx+PM9004x+3T2017':
+        log.info(
+            (
+                u'can_show_certificate_message called with:'
+                u'course:%s, student: %s, course grade: %s,'
+                u'certificates_enabled_for_course: %s, certificates_viewable_for_course: %s, auto_cert_gen_enabled: %s,'
+                u'has_active_enrollment: %s, passed: %s, is_whitelisted: %s'
+            ),
+            course.id,
+            student.username,
+            course_grade,
+            certificates_enabled_for_course,
+            certificates_are_viewable,
+            auto_cert_gen_enabled,
+            has_active_enrollment,
+            course_grade.passed,
+            is_whitelisted
+        )
     if not (
-        (auto_certificate_generation_enabled() or certificates_enabled_for_course) and
-        CourseEnrollment.is_enrolled(student, course.id) and
-        certificates_viewable_for_course(course) and
+        (auto_cert_gen_enabled or certificates_enabled_for_course) and
+        has_active_enrollment and
+        certificates_are_viewable and
         (course_grade.passed or is_whitelisted)
     ):
         return False