From e8db9e8f2a78b82a2e2e615e17e0096a6967cf4e Mon Sep 17 00:00:00 2001 From: Diana Huang Date: Wed, 21 Aug 2013 16:40:42 -0400 Subject: [PATCH] Make each item purchase transaction atomic and add the ability to record the fulfillment time --- ...uto__add_field_orderitem_fulfilled_time.py | 114 ++++++++++++++++++ lms/djangoapps/shoppingcart/models.py | 18 ++- 2 files changed, 129 insertions(+), 3 deletions(-) create mode 100644 lms/djangoapps/shoppingcart/migrations/0004_auto__add_field_orderitem_fulfilled_time.py diff --git a/lms/djangoapps/shoppingcart/migrations/0004_auto__add_field_orderitem_fulfilled_time.py b/lms/djangoapps/shoppingcart/migrations/0004_auto__add_field_orderitem_fulfilled_time.py new file mode 100644 index 0000000000..bbaf185184 --- /dev/null +++ b/lms/djangoapps/shoppingcart/migrations/0004_auto__add_field_orderitem_fulfilled_time.py @@ -0,0 +1,114 @@ +# -*- 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 field 'OrderItem.fulfilled_time' + db.add_column('shoppingcart_orderitem', 'fulfilled_time', + self.gf('django.db.models.fields.DateTimeField')(null=True), + keep_default=False) + + + def backwards(self, orm): + # Deleting field 'OrderItem.fulfilled_time' + db.delete_column('shoppingcart_orderitem', 'fulfilled_time') + + + 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'}, + 'date_joined': ('django.db.models.fields.DateTimeField', [], {'default': 'datetime.datetime.now'}), + 'email': ('django.db.models.fields.EmailField', [], {'max_length': '75', 'blank': 'True'}), + 'first_name': ('django.db.models.fields.CharField', [], {'max_length': '30', 'blank': 'True'}), + 'groups': ('django.db.models.fields.related.ManyToManyField', [], {'to': "orm['auth.Group']", 'symmetrical': 'False', 'blank': 'True'}), + 'id': ('django.db.models.fields.AutoField', [], {'primary_key': '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'}), + 'password': ('django.db.models.fields.CharField', [], {'max_length': '128'}), + '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'}) + }, + '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'}) + }, + 'shoppingcart.certificateitem': { + 'Meta': {'object_name': 'CertificateItem', '_ormbases': ['shoppingcart.OrderItem']}, + 'course_enrollment': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['student.CourseEnrollment']"}), + 'course_id': ('django.db.models.fields.CharField', [], {'max_length': '128', 'db_index': 'True'}), + 'mode': ('django.db.models.fields.SlugField', [], {'max_length': '50'}), + 'orderitem_ptr': ('django.db.models.fields.related.OneToOneField', [], {'to': "orm['shoppingcart.OrderItem']", 'unique': 'True', 'primary_key': 'True'}) + }, + 'shoppingcart.order': { + 'Meta': {'object_name': 'Order'}, + 'bill_to_cardtype': ('django.db.models.fields.CharField', [], {'max_length': '32', 'blank': 'True'}), + 'bill_to_ccnum': ('django.db.models.fields.CharField', [], {'max_length': '8', 'blank': 'True'}), + 'bill_to_city': ('django.db.models.fields.CharField', [], {'max_length': '64', 'blank': 'True'}), + 'bill_to_country': ('django.db.models.fields.CharField', [], {'max_length': '64', 'blank': 'True'}), + 'bill_to_first': ('django.db.models.fields.CharField', [], {'max_length': '64', 'blank': 'True'}), + 'bill_to_last': ('django.db.models.fields.CharField', [], {'max_length': '64', 'blank': 'True'}), + 'bill_to_postalcode': ('django.db.models.fields.CharField', [], {'max_length': '16', 'blank': 'True'}), + 'bill_to_state': ('django.db.models.fields.CharField', [], {'max_length': '8', 'blank': 'True'}), + 'bill_to_street1': ('django.db.models.fields.CharField', [], {'max_length': '128', 'blank': 'True'}), + 'bill_to_street2': ('django.db.models.fields.CharField', [], {'max_length': '128', 'blank': 'True'}), + 'currency': ('django.db.models.fields.CharField', [], {'default': "'usd'", 'max_length': '8'}), + 'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), + 'processor_reply_dump': ('django.db.models.fields.TextField', [], {'blank': 'True'}), + 'purchase_time': ('django.db.models.fields.DateTimeField', [], {'null': 'True', 'blank': 'True'}), + 'status': ('django.db.models.fields.CharField', [], {'default': "'cart'", 'max_length': '32'}), + 'user': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['auth.User']"}) + }, + 'shoppingcart.orderitem': { + 'Meta': {'object_name': 'OrderItem'}, + 'currency': ('django.db.models.fields.CharField', [], {'default': "'usd'", 'max_length': '8'}), + 'fulfilled_time': ('django.db.models.fields.DateTimeField', [], {'null': 'True'}), + 'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), + 'line_desc': ('django.db.models.fields.CharField', [], {'default': "'Misc. Item'", 'max_length': '1024'}), + 'order': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['shoppingcart.Order']"}), + 'qty': ('django.db.models.fields.IntegerField', [], {'default': '1'}), + 'status': ('django.db.models.fields.CharField', [], {'default': "'cart'", 'max_length': '32'}), + 'unit_cost': ('django.db.models.fields.DecimalField', [], {'default': '0.0', 'max_digits': '30', 'decimal_places': '2'}), + 'user': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['auth.User']"}) + }, + 'shoppingcart.paidcourseregistration': { + 'Meta': {'object_name': 'PaidCourseRegistration', '_ormbases': ['shoppingcart.OrderItem']}, + 'course_id': ('django.db.models.fields.CharField', [], {'max_length': '128', 'db_index': 'True'}), + 'mode': ('django.db.models.fields.SlugField', [], {'default': "'honor'", 'max_length': '50'}), + 'orderitem_ptr': ('django.db.models.fields.related.OneToOneField', [], {'to': "orm['shoppingcart.OrderItem']", 'unique': 'True', 'primary_key': 'True'}) + }, + 'student.courseenrollment': { + 'Meta': {'ordering': "('user', 'course_id')", 'unique_together': "(('user', 'course_id'),)", 'object_name': 'CourseEnrollment'}, + 'course_id': ('django.db.models.fields.CharField', [], {'max_length': '255', 'db_index': 'True'}), + 'created': ('django.db.models.fields.DateTimeField', [], {'auto_now_add': 'True', 'null': 'True', 'db_index': 'True', 'blank': 'True'}), + 'id': ('django.db.models.fields.AutoField', [], {'primary_key': 'True'}), + 'is_active': ('django.db.models.fields.BooleanField', [], {'default': 'True'}), + 'mode': ('django.db.models.fields.CharField', [], {'default': "'honor'", 'max_length': '100'}), + 'user': ('django.db.models.fields.related.ForeignKey', [], {'to': "orm['auth.User']"}) + } + } + + complete_apps = ['shoppingcart'] \ No newline at end of file diff --git a/lms/djangoapps/shoppingcart/models.py b/lms/djangoapps/shoppingcart/models.py index 415a9ebe50..490aac23a4 100644 --- a/lms/djangoapps/shoppingcart/models.py +++ b/lms/djangoapps/shoppingcart/models.py @@ -108,14 +108,14 @@ class Order(models.Model): self.bill_to_ccnum = ccnum self.bill_to_cardtype = cardtype self.processor_reply_dump = processor_reply_dump + # save these changes on the order, then we can tell when we are in an + # inconsistent state self.save() # this should return all of the objects with the correct types of the # subclasses orderitems = OrderItem.objects.filter(order=self).select_subclasses() for item in orderitems: - item.status = 'purchased' - item.save() - item.purchased_callback() + item.purchase_item() class OrderItem(models.Model): @@ -136,6 +136,7 @@ class OrderItem(models.Model): unit_cost = models.DecimalField(default=0.0, decimal_places=2, max_digits=30) line_desc = models.CharField(default="Misc. Item", max_length=1024) currency = models.CharField(default="usd", max_length=8) # lower case ISO currency codes + fulfilled_time = models.DateTimeField(null=True) @property def line_cost(self): @@ -157,6 +158,17 @@ class OrderItem(models.Model): if order.currency != currency and order.orderitem_set.exists(): raise InvalidCartItem(_("Trying to add a different currency into the cart")) + @transaction.commit_on_success + def purchase_item(self): + """ + This is basically a wrapper around purchased_callback that handles + modifying the OrderItem itself + """ + self.purchased_callback() + self.status = 'purchased' + self.fulfilled_time = datetime.now(pytz.utc) + self.save() + def purchased_callback(self): """ This is called on each inventory item in the shopping cart when the