Added V2 from scratch

backend/flavor/admin.py

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+from django.contrib import admin
+
+# Register your models here.

backend/flavor/apps.py

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+from django.apps import AppConfig
+
+
+class FlavorConfig(AppConfig):
+    name = 'flavor'

backend/flavor/migrations/0001_initial.py

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+# Generated by Django 2.0.8 on 2018-09-22 07:20
+
+import django.core.validators
+from django.db import migrations, models
+import django.db.models.deletion
+import re
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Image',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('slug', models.SlugField(max_length=200, validators=[django.core.validators.RegexValidator(re.compile('^[-a-zA-Z0-9_]+\\Z'), "Enter a valid 'slug' consisting of letters, numbers, underscores or hyphens.", 'invalid')])),
+                ('name', models.CharField(max_length=255)),
+                ('url', models.URLField()),
+                ('md5sum', models.CharField(max_length=50)),
+                ('is_active', models.BooleanField(default=False)),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('is_deleted', models.BooleanField(default=False)),
+                ('deleted_at', models.DateTimeField(blank=True, null=True)),
+            ],
+            options={
+                'verbose_name': 'Instance Image',
+                'verbose_name_plural': 'Instance Images',
+                'ordering': ['-id'],
+            },
+        ),
+        migrations.CreateModel(
+            name='Size',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('slug', models.CharField(max_length=200, validators=[django.core.validators.RegexValidator(re.compile('^[-a-zA-Z0-9_]+\\Z'), "Enter a valid 'slug' consisting of letters, numbers, underscores or hyphens.", 'invalid')])),
+                ('name', models.CharField(blank=True, max_length=255)),
+                ('cpu', models.IntegerField(default=1)),
+                ('disk_bytes', models.BigIntegerField(default=21474836480)),
+                ('memory_bytes', models.BigIntegerField(default=536870912)),
+                ('is_active', models.BooleanField(default=False)),
+                ('created_at', models.DateTimeField(auto_now_add=True)),
+                ('is_deleted', models.BooleanField(default=False)),
+                ('deleted_at', models.DateTimeField(blank=True, null=True)),
+            ],
+            options={
+                'verbose_name': 'Instance Size',
+                'verbose_name_plural': 'Instance Sizes',
+                'ordering': ['-id'],
+            },
+        ),
+        migrations.AddField(
+            model_name='image',
+            name='required_size',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='flavor.Size'),
+        ),
+    ]

backend/flavor/models.py

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+from django.db import models
+from django.core.validators import validate_slug
+
+
+class Size(models.Model):
+
+    slug = models.CharField(
+        max_length=200,
+        validators=[validate_slug],
+    )
+
+    name = models.CharField(
+        max_length=255,
+        blank=True,
+    )
+
+    cpu = models.IntegerField(
+        default=1,
+    )
+
+    disk_bytes = models.BigIntegerField(
+        default=21474836480,
+    )
+
+    memory_bytes = models.BigIntegerField(
+        default=536870912,
+    )
+
+    is_active = models.BooleanField(
+        default=False,
+    )
+
+    created_at = models.DateTimeField(
+        auto_now_add=True,
+    )
+
+    is_deleted = models.BooleanField(
+        default=False,
+    )
+
+    deleted_at = models.DateTimeField(
+        blank=True,
+        null=True,
+    )
+
+    class Meta:
+        ordering = ['-id']
+        verbose_name = "Instance Size"
+        verbose_name_plural = "Instance Sizes"
+
+    def __unicode__(self):
+        return self.name
+
+    def save(self):
+        if self.ram < 1 * (1024 ** 2):
+            self.ram = self.ram * (1024 ** 2)
+        if self.disk < 1 * (1024 ** 3):
+            self.disk = self.disk * (1024 ** 3)
+        super(Size, self).save()
+
+
+class Image(models.Model):
+
+    slug = models.SlugField(
+        max_length=200,
+        validators=[validate_slug],
+    )
+
+    name = models.CharField(
+        max_length=255,
+    )
+
+    url = models.URLField(
+        max_length=200,
+    )
+
+    md5sum = models.CharField(
+        max_length=50,
+    )
+
+    is_active = models.BooleanField(
+        default=False,
+    )
+
+    created_at = models.DateTimeField(
+        auto_now_add=True,
+    )
+
+    is_deleted = models.BooleanField(
+        default=False,
+    )
+
+    deleted_at = models.DateTimeField(
+        blank=True,
+        null=True,
+    )
+
+    required_size = models.ForeignKey(
+        Size,
+        blank=True,
+        null=True,
+        on_delete=models.CASCADE,
+    )
+
+    class Meta:
+        ordering = ['-id']
+        verbose_name = "Instance Image"
+        verbose_name_plural = "Instance Images"
+
+    def __unicode__(self):
+        return self.name

backend/flavor/tests.py

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+from django.test import TestCase
+
+# Create your tests here.

backend/flavor/views.py

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+from django.shortcuts import render
+
+# Create your views here.