Removes EnablingConditionBase, replaces it with FlagBase; adds first tranche of migrations

registrasion/migrations/0001_initial.py

@@ -0,0 +1,383 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.2 on 2016-04-25 08:30
+from __future__ import unicode_literals
+
+import datetime
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+import django.utils.timezone
+import registrasion.models.commerce
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Attendee',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('access_code', models.CharField(db_index=True, max_length=6, unique=True)),
+                ('completed_registration', models.BooleanField(default=False)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='AttendeeProfileBase',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('attendee', models.OneToOneField(on_delete=django.db.models.deletion.CASCADE, to='registrasion.Attendee')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Cart',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('time_last_updated', models.DateTimeField(db_index=True)),
+                ('reservation_duration', models.DurationField()),
+                ('revision', models.PositiveIntegerField(default=1)),
+                ('status', models.IntegerField(choices=[(1, 'Active'), (2, 'Paid'), (3, 'Released')], db_index=True, default=1)),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Category',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=65, verbose_name='Name')),
+                ('description', models.CharField(max_length=255, verbose_name='Description')),
+                ('limit_per_user', models.PositiveIntegerField(blank=True, help_text='The total number of items from this category one attendee may purchase.', null=True, verbose_name='Limit per user')),
+                ('required', models.BooleanField(help_text='If enabled, a user must select an item from this category.')),
+                ('order', models.PositiveIntegerField(db_index=True, verbose_name=b'Display order')),
+                ('render_type', models.IntegerField(choices=[(1, 'Radio button'), (2, 'Quantity boxes')], help_text='The registration form will render this category in this style.', verbose_name='Render type')),
+            ],
+            options={
+                'ordering': ('order',),
+                'verbose_name': 'inventory - category',
+                'verbose_name_plural': 'inventory - categories',
+            },
+        ),
+        migrations.CreateModel(
+            name='CreditNoteRefund',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('time', models.DateTimeField(default=django.utils.timezone.now)),
+                ('reference', models.CharField(max_length=255)),
+            ],
+            bases=(registrasion.models.commerce.CleanOnSave, models.Model),
+        ),
+        migrations.CreateModel(
+            name='DiscountBase',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('description', models.CharField(help_text='A description of this discount. This will be included on invoices where this discount is applied.', max_length=255, verbose_name='Description')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='DiscountForCategory',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('percentage', models.DecimalField(decimal_places=1, max_digits=4)),
+                ('quantity', models.PositiveIntegerField()),
+                ('category', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='registrasion.Category')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='DiscountForProduct',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('percentage', models.DecimalField(blank=True, decimal_places=1, max_digits=4, null=True)),
+                ('price', models.DecimalField(blank=True, decimal_places=2, max_digits=8, null=True)),
+                ('quantity', models.PositiveIntegerField()),
+            ],
+        ),
+        migrations.CreateModel(
+            name='DiscountItem',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('quantity', models.PositiveIntegerField()),
+                ('cart', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='registrasion.Cart')),
+            ],
+            options={
+                'ordering': ('product',),
+            },
+        ),
+        migrations.CreateModel(
+            name='FlagBase',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('description', models.CharField(max_length=255)),
+                ('condition', models.IntegerField(choices=[(1, 'Disable if false'), (2, 'Enable if true')], default=2, help_text="If there is at least one 'disable if false' flag defined on a product or category, all such flag  conditions must be met. If there is at least one 'enable if true' flag, at least one such condition must be met. If both types of conditions exist on a product, both of these rules apply.")),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Invoice',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('cart_revision', models.IntegerField(db_index=True, null=True)),
+                ('status', models.IntegerField(choices=[(1, 'Unpaid'), (2, 'Paid'), (3, 'Refunded'), (4, 'VOID')], db_index=True)),
+                ('recipient', models.CharField(max_length=1024)),
+                ('issue_time', models.DateTimeField()),
+                ('due_time', models.DateTimeField()),
+                ('value', models.DecimalField(decimal_places=2, max_digits=8)),
+                ('cart', models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, to='registrasion.Cart')),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='LineItem',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('description', models.CharField(max_length=255)),
+                ('quantity', models.PositiveIntegerField()),
+                ('price', models.DecimalField(decimal_places=2, max_digits=8)),
+                ('invoice', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='registrasion.Invoice')),
+            ],
+            options={
+                'ordering': ('id',),
+            },
+        ),
+        migrations.CreateModel(
+            name='PaymentBase',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('time', models.DateTimeField(default=django.utils.timezone.now)),
+                ('reference', models.CharField(max_length=255)),
+                ('amount', models.DecimalField(decimal_places=2, max_digits=8)),
+            ],
+            options={
+                'ordering': ('time',),
+            },
+        ),
+        migrations.CreateModel(
+            name='Product',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=65, verbose_name='Name')),
+                ('description', models.CharField(blank=True, max_length=255, null=True, verbose_name='Description')),
+                ('price', models.DecimalField(decimal_places=2, max_digits=8, verbose_name='Price')),
+                ('limit_per_user', models.PositiveIntegerField(blank=True, null=True, verbose_name='Limit per user')),
+                ('reservation_duration', models.DurationField(default=datetime.timedelta(0, 3600), help_text='The length of time this product will be reserved before it is released for someone else to purchase.', verbose_name='Reservation duration')),
+                ('order', models.PositiveIntegerField(db_index=True, verbose_name=b'Display order')),
+                ('category', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='registrasion.Category', verbose_name='Product category')),
+            ],
+            options={
+                'ordering': ('category__order', 'order'),
+                'verbose_name': 'inventory - product',
+            },
+        ),
+        migrations.CreateModel(
+            name='ProductItem',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('quantity', models.PositiveIntegerField(db_index=True)),
+                ('cart', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='registrasion.Cart')),
+                ('product', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='registrasion.Product')),
+            ],
+            options={
+                'ordering': ('product',),
+            },
+        ),
+        migrations.CreateModel(
+            name='Voucher',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('recipient', models.CharField(max_length=64, verbose_name='Recipient')),
+                ('code', models.CharField(max_length=16, unique=True, verbose_name='Voucher code')),
+                ('limit', models.PositiveIntegerField(verbose_name='Voucher use limit')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='CategoryFlag',
+            fields=[
+                ('flagbase_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='registrasion.FlagBase')),
+                ('enabling_category', models.ForeignKey(help_text='If a product from this category is purchased, this condition is met.', on_delete=django.db.models.deletion.CASCADE, to='registrasion.Category')),
+            ],
+            options={
+                'verbose_name': 'flag (dependency on product from category)',
+                'verbose_name_plural': 'flags (dependency on product from category)',
+            },
+            bases=('registrasion.flagbase',),
+        ),
+        migrations.CreateModel(
+            name='CreditNote',
+            fields=[
+                ('paymentbase_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='registrasion.PaymentBase')),
+            ],
+            bases=('registrasion.paymentbase',),
+        ),
+        migrations.CreateModel(
+            name='CreditNoteApplication',
+            fields=[
+                ('paymentbase_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='registrasion.PaymentBase')),
+                ('parent', models.OneToOneField(on_delete=django.db.models.deletion.CASCADE, to='registrasion.CreditNote')),
+            ],
+            bases=(registrasion.models.commerce.CleanOnSave, 'registrasion.paymentbase'),
+        ),
+        migrations.CreateModel(
+            name='IncludedProductDiscount',
+            fields=[
+                ('discountbase_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='registrasion.DiscountBase')),
+                ('enabling_products', models.ManyToManyField(help_text='If one of these products are purchased, the discounts below will be enabled.', to='registrasion.Product', verbose_name='Including product')),
+            ],
+            options={
+                'verbose_name': 'discount (product inclusions)',
+                'verbose_name_plural': 'discounts (product inclusions)',
+            },
+            bases=('registrasion.discountbase',),
+        ),
+        migrations.CreateModel(
+            name='ManualCreditNoteRefund',
+            fields=[
+                ('creditnoterefund_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='registrasion.CreditNoteRefund')),
+                ('entered_by', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+            bases=('registrasion.creditnoterefund',),
+        ),
+        migrations.CreateModel(
+            name='ManualPayment',
+            fields=[
+                ('paymentbase_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='registrasion.PaymentBase')),
+                ('entered_by', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+            bases=('registrasion.paymentbase',),
+        ),
+        migrations.CreateModel(
+            name='ProductFlag',
+            fields=[
+                ('flagbase_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='registrasion.FlagBase')),
+                ('enabling_products', models.ManyToManyField(help_text='If one of these products are purchased, this condition is met.', to='registrasion.Product')),
+            ],
+            options={
+                'verbose_name': 'flag (dependency on product)',
+                'verbose_name_plural': 'flags (dependency on product)',
+            },
+            bases=('registrasion.flagbase',),
+        ),
+        migrations.CreateModel(
+            name='TimeOrStockLimitDiscount',
+            fields=[
+                ('discountbase_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='registrasion.DiscountBase')),
+                ('start_time', models.DateTimeField(blank=True, help_text='This discount will only be available after this time.', null=True, verbose_name='Start time')),
+                ('end_time', models.DateTimeField(blank=True, help_text='This discount will only be available before this time.', null=True, verbose_name='End time')),
+                ('limit', models.PositiveIntegerField(blank=True, help_text='This discount may only be applied this many times.', null=True, verbose_name='Limit')),
+            ],
+            options={
+                'verbose_name': 'discount (time/stock limit)',
+                'verbose_name_plural': 'discounts (time/stock limit)',
+            },
+            bases=('registrasion.discountbase',),
+        ),
+        migrations.CreateModel(
+            name='TimeOrStockLimitFlag',
+            fields=[
+                ('flagbase_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='registrasion.FlagBase')),
+                ('start_time', models.DateTimeField(blank=True, help_text='Products included in this condition will only be available after this time.', null=True)),
+                ('end_time', models.DateTimeField(blank=True, help_text='Products included in this condition will only be available before this time.', null=True)),
+                ('limit', models.PositiveIntegerField(blank=True, help_text='The number of items under this grouping that can be purchased.', null=True)),
+            ],
+            options={
+                'verbose_name': 'flag (time/stock limit)',
+                'verbose_name_plural': 'flags (time/stock limit)',
+            },
+            bases=('registrasion.flagbase',),
+        ),
+        migrations.CreateModel(
+            name='VoucherDiscount',
+            fields=[
+                ('discountbase_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='registrasion.DiscountBase')),
+                ('voucher', models.OneToOneField(on_delete=django.db.models.deletion.CASCADE, to='registrasion.Voucher', verbose_name='Voucher')),
+            ],
+            options={
+                'verbose_name': 'discount (enabled by voucher)',
+                'verbose_name_plural': 'discounts (enabled by voucher)',
+            },
+            bases=('registrasion.discountbase',),
+        ),
+        migrations.CreateModel(
+            name='VoucherFlag',
+            fields=[
+                ('flagbase_ptr', models.OneToOneField(auto_created=True, on_delete=django.db.models.deletion.CASCADE, parent_link=True, primary_key=True, serialize=False, to='registrasion.FlagBase')),
+                ('voucher', models.OneToOneField(on_delete=django.db.models.deletion.CASCADE, to='registrasion.Voucher')),
+            ],
+            options={
+                'verbose_name': 'flag (dependency on voucher)',
+                'verbose_name_plural': 'flags (dependency on voucher)',
+            },
+            bases=('registrasion.flagbase',),
+        ),
+        migrations.AddField(
+            model_name='paymentbase',
+            name='invoice',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='registrasion.Invoice'),
+        ),
+        migrations.AddField(
+            model_name='lineitem',
+            name='product',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='registrasion.Product'),
+        ),
+        migrations.AddField(
+            model_name='flagbase',
+            name='categories',
+            field=models.ManyToManyField(blank=True, help_text="Categories whose products are affected by this flag's condition.", related_name='flagbase_set', to='registrasion.Category'),
+        ),
+        migrations.AddField(
+            model_name='flagbase',
+            name='products',
+            field=models.ManyToManyField(blank=True, help_text="Products affected by this flag's condition.", related_name='flagbase_set', to='registrasion.Product'),
+        ),
+        migrations.AddField(
+            model_name='discountitem',
+            name='discount',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='registrasion.DiscountBase'),
+        ),
+        migrations.AddField(
+            model_name='discountitem',
+            name='product',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='registrasion.Product'),
+        ),
+        migrations.AddField(
+            model_name='discountforproduct',
+            name='discount',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='registrasion.DiscountBase'),
+        ),
+        migrations.AddField(
+            model_name='discountforproduct',
+            name='product',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='registrasion.Product'),
+        ),
+        migrations.AddField(
+            model_name='discountforcategory',
+            name='discount',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='registrasion.DiscountBase'),
+        ),
+        migrations.AddField(
+            model_name='cart',
+            name='vouchers',
+            field=models.ManyToManyField(blank=True, to='registrasion.Voucher'),
+        ),
+        migrations.AddField(
+            model_name='attendee',
+            name='guided_categories_complete',
+            field=models.ManyToManyField(to='registrasion.Category'),
+        ),
+        migrations.AddField(
+            model_name='attendee',
+            name='user',
+            field=models.OneToOneField(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL),
+        ),
+        migrations.AddField(
+            model_name='creditnoterefund',
+            name='parent',
+            field=models.OneToOneField(on_delete=django.db.models.deletion.CASCADE, to='registrasion.CreditNote'),
+        ),
+        migrations.AlterIndexTogether(
+            name='cart',
+            index_together=set([('status', 'user'), ('status', 'time_last_updated')]),
+        ),
+    ]

registrasion/models/conditions.py

@@ -279,10 +279,7 @@ class FlagBase(models.Model):
             The Categories whose Products are affected by this flag.
     '''
 
-    class Meta:
-        # TODO: make concrete once https://code.djangoproject.com/ticket/26488
-        # is solved.
-        abstract = True
+    objects = InheritanceManager()
 
     DISABLE_IF_FALSE = 1
     ENABLE_IF_TRUE = 2
@@ -333,19 +330,7 @@ class FlagBase(models.Model):
     )
 
 
-class EnablingConditionBase(FlagBase):
-    ''' Reifies the abstract FlagBase. This is necessary because django
-    prevents renaming base classes in migrations. '''
-    # TODO: remove this, and make subclasses subclass FlagBase once
-    # https://code.djangoproject.com/ticket/26488 is solved.
-
-    class Meta:
-        app_label = "registrasion"
-
-    objects = InheritanceManager()
-
-
-class TimeOrStockLimitFlag(EnablingConditionBase):
+class TimeOrStockLimitFlag(FlagBase):
     ''' Product groupings that can be used to enable a product during a
     specific date range, or when fewer than a limit of products have been
     sold.
@@ -388,7 +373,7 @@ class TimeOrStockLimitFlag(EnablingConditionBase):
 
 
 @python_2_unicode_compatible
-class ProductFlag(EnablingConditionBase):
+class ProductFlag(FlagBase):
     ''' The condition is met because a specific product is purchased.
 
     Attributes:
@@ -412,7 +397,7 @@ class ProductFlag(EnablingConditionBase):
 
 
 @python_2_unicode_compatible
-class CategoryFlag(EnablingConditionBase):
+class CategoryFlag(FlagBase):
     ''' The condition is met because a product in a particular product is
     purchased.
 
@@ -437,7 +422,7 @@ class CategoryFlag(EnablingConditionBase):
 
 
 @python_2_unicode_compatible
-class VoucherFlag(EnablingConditionBase):
+class VoucherFlag(FlagBase):
     ''' The condition is met because a Voucher is present. This is for e.g.
     enabling sponsor tickets. '''