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Commit c214d0dc by Bridger Maxwell
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Added UUID generation to certificates. Now, each student/course will have a… 

Added UUID generation to certificates. Now, each student/course will have a unique ID for verifying the certificate.
parent 771ea9d3
Showing with 142 additions and 1 deletions
djangoapps/certificates/migrations/0001_added_generatedcertificates.py 0 → 100644
# -*- coding: utf-8 -*-
import datetime
from south.db import db
from south.v2 import SchemaMigration
from django.db import models
class Migration(SchemaMigration):
def forwards(self, orm):
# Adding model 'GeneratedCertificate'
db.create_table('certificates_generatedcertificate', (
('id', self.gf('django.db.models.fields.AutoField')(primary_key=True)),
('user', self.gf('django.db.models.fields.related.ForeignKey')(to=orm['auth.User'])),
('certificate_id', self.gf('django.db.models.fields.CharField')(max_length=32)),
))
db.send_create_signal('certificates', ['GeneratedCertificate'])
def backwards(self, orm):
# Deleting model 'GeneratedCertificate'
db.delete_table('certificates_generatedcertificate')
models = {
'auth.group': {
'Meta': {'object_name': 'Group'},
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '80'}),
'permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'})
},
'auth.permission': {
'Meta': {'ordering': "('content_type__app_label', 'content_type__model', 'codename')", 'unique_together': "(('content_type', 'codename'),)", 'object_name': 'Permission'},
'codename': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'content_type': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['contenttypes.ContentType']"}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '50'})
},
'auth.user': {
'Meta': {'object_name': 'User'},
'about': ('django.db.models.fields.TextField', [], {'blank': 'True'}),
'avatar_type': ('django.db.models.fields.CharField', [], {'default': "'n'", 'max_length': '1'}),
'bronze': ('django.db.models.fields.SmallIntegerField', [], {'default': '0'}),
'consecutive_days_visit_count': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
'country': ('django_countries.fields.CountryField', [], {'max_length': '2', 'blank': 'True'}),
'date_joined': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
'date_of_birth': ('django.db.models.fields.DateField', [], {'null': 'True', 'blank': 'True'}),
'display_tag_filter_strategy': ('django.db.models.fields.SmallIntegerField', [], {'default': '0'}),
'email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'blank': 'True'}),
'email_isvalid': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
'email_key': ('django.db.models.fields.CharField', [], {'max_length': '32', 'null': 'True'}),
'email_tag_filter_strategy': ('django.db.models.fields.SmallIntegerField', [], {'default': '1'}),
'first_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
'gold': ('django.db.models.fields.SmallIntegerField', [], {'default': '0'}),
'gravatar': ('django.db.models.fields.CharField', [], {'max_length': '32'}),
'groups': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Group']", 'symmetrical': 'False', 'blank': 'True'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'ignored_tags': ('django.db.models.fields.TextField', [], {'blank': 'True'}),
'interesting_tags': ('django.db.models.fields.TextField', [], {'blank': 'True'}),
'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}),
'is_staff': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
'is_superuser': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
'last_login': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
'last_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}),
'last_seen': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}),
'location': ('django.db.models.fields.CharField', [], {'max_length': '100', 'blank': 'True'}),
'new_response_count': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
'password': ('django.db.models.fields.CharField', [], {'max_length': '128'}),
'questions_per_page': ('django.db.models.fields.SmallIntegerField', [], {'default': '10'}),
'real_name': ('django.db.models.fields.CharField', [], {'max_length': '100', 'blank': 'True'}),
'reputation': ('django.db.models.fields.PositiveIntegerField', [], {'default': '1'}),
'seen_response_count': ('django.db.models.fields.IntegerField', [], {'default': '0'}),
'show_country': ('django.db.models.fields.BooleanField', [], {'default': 'False'}),
'silver': ('django.db.models.fields.SmallIntegerField', [], {'default': '0'}),
'status': ('django.db.models.fields.CharField', [], {'default': "'w'", 'max_length': '2'}),
'user_permissions': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Permission']", 'symmetrical': 'False', 'blank': 'True'}),
'username': ('django.db.models.fields.CharField', [], {'unique': 'True', 'max_length': '30'}),
'website': ('django.db.models.fields.URLField', [], {'max_length': '200', 'blank': 'True'})
},
'certificates.generatedcertificate': {
'Meta': {'object_name': 'GeneratedCertificate'},
'certificate_id': ('django.db.models.fields.CharField', [], {'max_length': '32'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'user': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['auth.User']"})
},
'contenttypes.contenttype': {
'Meta': {'ordering': "('name',)", 'unique_together': "(('app_label', 'model'),)", 'object_name': 'ContentType', 'db_table': "'django_content_type'"},
'app_label': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}),
'model': ('django.db.models.fields.CharField', [], {'max_length': '100'}),
'name': ('django.db.models.fields.CharField', [], {'max_length': '100'})
}
}
complete_apps = ['certificates']
\ No newline at end of file
djangoapps/certificates/models.py
from django.contrib.auth.models import User
from django.db import models
# Create your models here.
'''
When a certificate is generated, a unique ID is generated so that
the certificate can be verified later. The ID is a UUID4, so that
it can't be easily guessed and so that it is unique. Even though
we save these generated certificates (for later verification), we
also record the UUID so that if we regenerate the certificate it
will have the same UUID.
Certificates are created for a student and an offering of a course.
'''
class GeneratedCertificate(models.Model):
user = models.ForeignKey(User, db_index=True)
certificate_id = models.CharField(max_length=32)
# TODO: Maybe we store the grade when the certificate was
# generated, so we can tell the user if their grade improves?
# Can a grade improve?
\ No newline at end of file
djangoapps/certificates/views.py
import json
import logging
import uuid
from django.contrib.auth.decorators import login_required
from django.http import Http404, HttpResponse
from mitxmako.shortcuts import render_to_response
import courseware.grades as grades
from certificates.models import GeneratedCertificate
log = logging.getLogger("mitx.certificates")
@login_required
def certificate_request(request):
......@@ -33,9 +40,27 @@ def certificate_request(request):
error += 'You have not earned a grade in this course. '
if len(error) == 0:
generate_certificate(request.user, grade, destination_email)
# TODO: Send the certificate email
return HttpResponse(json.dumps({'success':True,
'value': 'A certificate is being generated and will be sent. ' }))
else:
return HttpResponse(json.dumps({'success':False,
'error': error }))
# TODO: This method should be executed as an asynchronous task
def generate_certificate(user, grade, destination_email):
generated_certificate = None
try:
generated_certificate = GeneratedCertificate.objects.get(user = user)
except GeneratedCertificate.DoesNotExist:
generated_certificate = GeneratedCertificate(user = user, certificate_id = uuid.uuid4().hex)
generated_certificate.save()
certificate_id = generated_certificate.certificate_id
log.debug("Generating certificate for " + str(user.username) + " with ID: " + certificate_id)
\ No newline at end of file
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