Data migration to combined app

This is an intermediate version for migrating to the new, combined app.

EVERoachCoach/settings.py.example

@@ -40,6 +40,8 @@ INSTALLED_APPS = [
     'django.contrib.staticfiles',
     'rapid_sales_tool',
     'portal',
+    'orders',
+    'stock',
 ]
 
 MIDDLEWARE_CLASSES = [
@@ -125,6 +127,11 @@ USE_TZ = True
 # Static files (CSS, JavaScript, Images)
 # https://docs.djangoproject.com/en/1.9/howto/static-files/
 
+# STATIC_ROOT should be set to the directory in which your webserver will be looking for static files.
+# i.e. /var/www/example/static/
+
+STATIC_ROOT = ''
+
 STATIC_URL = '/static/'
 
 SERVICE_NAME = os.environ.get('APP_SERVICE_NAME', '')

orders/admin.py

@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.

orders/apps.py

@@ -0,0 +1,7 @@
+from __future__ import unicode_literals
+
+from django.apps import AppConfig
+
+
+class OrdersConfig(AppConfig):
+    name = 'orders'

orders/forms.py

@@ -0,0 +1,13 @@
+from django.forms import ModelForm, ModelChoiceField
+from django.forms.models import inlineformset_factory
+from stock.models import StockItem
+from .models import *
+
+class AddOrderForm(ModelForm):
+    class Meta:
+        model = Order
+        exclude = ('order_price','is_paid')
+    def __init__(self, *args, **kwargs):
+        super(AddOrderForm, self).__init__(*args, **kwargs)
+        self.fields['item'].queryset = StockItem.objects.all()
+        self.fields['item'].label_from_instance = lambda obj: "%s" % (obj.item_name)

orders/migrations/0001_initial.py

@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.3 on 2016-03-27 23:17
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('stock', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Order',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('customer_name', models.CharField(max_length=64)),
+                ('item_quantity', models.PositiveIntegerField()),
+                ('order_price', models.DecimalField(decimal_places=2, max_digits=17)),
+                ('is_paid', models.BooleanField()),
+                ('item', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to='stock.StockItem')),
+            ],
+        ),
+    ]

orders/models.py

@@ -0,0 +1,11 @@
+from __future__ import unicode_literals
+
+from django.db import models
+from stock.models import StockItem
+
+class Order(models.Model):
+    customer_name = models.CharField(max_length=64)
+    item = models.ForeignKey(StockItem, on_delete=models.CASCADE)
+    item_quantity = models.PositiveIntegerField()
+    order_price = models.DecimalField(max_digits=17, decimal_places=2)
+    is_paid = models.BooleanField()

orders/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

orders/views.py

@@ -0,0 +1,59 @@
+import requests
+import json
+from decimal import Decimal
+from django.conf import settings
+from django.core.urlresolvers import reverse
+from django.http.response import HttpResponseServerError
+from django.template import RequestContext
+from django.shortcuts import HttpResponseRedirect, render, get_object_or_404, HttpResponse
+from django.forms import modelformset_factory
+from .forms import *
+from .models import *
+
+def order(request):
+    orders = Order.objects.filter(is_paid=False)
+    for item in orders:
+        item.markup_price = item.order_price + (item.order_price * Decimal(settings.MARKUP_VALUE))
+    if request.method == 'POST':
+        form = AddOrderForm(request.POST)
+        if form.is_valid():
+            order_instance = form.save(commit=False)
+            stock_item = order_instance.item
+            if order_instance.item_quantity <= stock_item.item_count:
+                order_instance.order_price = order_instance.item_quantity * stock_item.unit_cost
+                stock_item.item_count -= order_instance.item_quantity
+                order_instance.is_paid = False
+                stock_item.save()
+                form.save()
+            else:
+                return HttpResponseServerError(('You cannot order more than is available: {0} units').format(stock_item.item_count))
+        return HttpResponseRedirect(reverse(order))
+    else:
+        addOrderForm = AddOrderForm()
+        return render(request, 'public/orders.html', {'addOrderForm': addOrderForm, 'orders': orders, 'service_name': settings.SERVICE_NAME}, context_instance=RequestContext(request))
+
+def cancelOrder(request):
+    if request.method == 'POST':
+        response = HttpResponse()
+        order_id = request.POST['order_id']
+        order = get_object_or_404(Order, pk=order_id)
+        stock_item = order.item
+        stock_item.item_count += order.item_quantity
+        stock_item.save()
+        order.delete()
+        response.status_code = 200
+        return response
+    else:
+        Http404("Why are you here?")
+
+def paidOrder(request):
+    if request.method == 'POST':
+        response = HttpResponse()
+        order_id = request.POST['order_id']
+        order = get_object_or_404(Order, pk=order_id)
+        order.is_paid = True
+        order.save()
+        response.status_code = 200
+        return response
+    else:
+        Http404("Why are you here?")

rapid_sales_tool/migrations/0002_upgrade_from_v1.py

@@ -0,0 +1,55 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.3 on 2016-05-08 23:02
+from __future__ import unicode_literals
+
+from django.apps import apps as global_apps
+from django.db import migrations
+
+def migrate_stock(apps, schema_editor):
+    try:
+        old_stock = apps.get_model("stock", "StockItem")
+    except LookupError:
+        print("The Stock app is not installed. Skipping migration step.")
+        return
+
+    new_stock = apps.get_model("rapid_sales_tool", "StockItem")
+    new_stock.objects.bulk_create([
+        new_stock(pk = old_object.pk,
+                  item_name = old_object.item_name,
+                  item_count = old_object.item_count,
+                  unit_cost = old_object.unit_cost)
+        for old_object in old_stock.objects.all()])
+
+def migrate_orders(apps, schema_editor):
+    try:
+        old_orders = apps.get_model("orders", "Order")
+    except LookupError:
+        print("The Orders app is not installed. Skipping migration step.")
+        return
+
+    new_stock = apps.get_model("rapid_sales_tool", "StockItem")
+    new_orders = apps.get_model("rapid_sales_tool", "Order")
+    new_orders.objects.bulk_create([
+        new_orders(pk = old_object.pk,
+                   customer_name = old_object.customer_name,
+                   item = new_stock(pk=old_object.item.pk),
+                   item_quantity = old_object.item_quantity,
+                   order_price = old_object.order_price,
+                   is_paid = old_object.is_paid)
+        for old_object in old_orders.objects.all()])
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('rapid_sales_tool', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.RunPython(migrate_stock, migrations.RunPython.noop),
+        migrations.RunPython(migrate_orders, migrations.RunPython.noop),
+    ]
+
+    if global_apps.is_installed('orders'):
+        dependencies.append(('orders', '0001_initial'))
+    if global_apps.is_installed('stock'):
+        dependencies.append(('stock', '0001_initial'))

stock/admin.py

@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.

stock/apps.py

@@ -0,0 +1,7 @@
+from __future__ import unicode_literals
+
+from django.apps import AppConfig
+
+
+class StockConfig(AppConfig):
+    name = 'stock'

stock/forms.py

@@ -0,0 +1,13 @@
+from django import forms
+from django.forms import ModelForm
+from .models import StockItem
+
+class AddItemForm(ModelForm):
+    class Meta:
+        model = StockItem
+        fields = '__all__'
+
+class AddStockForm(ModelForm):
+    class Meta:
+        model = StockItem
+        fields = ['item_count','unit_cost']

stock/migrations/0001_initial.py

@@ -0,0 +1,25 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.9.3 on 2016-03-27 23:17
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='StockItem',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('item_name', models.CharField(max_length=255)),
+                ('item_count', models.PositiveIntegerField()),
+                ('unit_cost', models.DecimalField(decimal_places=2, max_digits=17)),
+            ],
+        ),
+    ]

stock/models.py

@@ -0,0 +1,8 @@
+from __future__ import unicode_literals
+
+from django.db import models
+
+class StockItem(models.Model):
+    item_name = models.CharField(max_length=255)
+    item_count = models.PositiveIntegerField()
+    unit_cost = models.DecimalField(max_digits=17, decimal_places=2)

stock/tests.py

@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.

stock/views.py

@@ -0,0 +1,45 @@
+import requests
+from django.conf import settings
+from django.core.urlresolvers import reverse
+from django.template import RequestContext
+from django.shortcuts import HttpResponseRedirect, render, get_object_or_404, HttpResponse
+from .forms import *
+from .models import *
+
+def stock(request):
+    items = StockItem.objects.all()
+    if request.method == 'POST':
+        form = AddItemForm(request.POST)
+        if form.is_valid():
+            form.save()
+        return HttpResponseRedirect(reverse(stock))
+    else:
+        addItemForm = AddItemForm()
+        addStockForm = AddStockForm()
+        return render(request, 'public/stock.html', {'addItemForm': addItemForm, 'addStockForm': addStockForm, 'items': items, 'service_name': settings.SERVICE_NAME}, context_instance=RequestContext(request))
+
+def editStock(request, stock_id):
+    stock_item = get_object_or_404(StockItem, pk=stock_id)
+    item_instance = get_object_or_404(StockItem, pk=stock_id)
+    if request.method == 'POST':
+        form = AddStockForm(request.POST, instance=item_instance)
+        if form.is_valid():
+            item_count = form.instance.item_count + stock_item.item_count
+            unit_cost = ((form.instance.item_count * form.instance.unit_cost) + (stock_item.item_count * stock_item.unit_cost)) / item_count
+            form.instance.item_count = item_count
+            form.instance.unit_cost = unit_cost
+            form.save()
+        return HttpResponseRedirect(reverse(stock))
+    else:
+        raise Http404("Stock item does not exist")
+
+def deleteStock(request):
+    if request.method == 'POST':
+        response = HttpResponse()
+        item_id = request.POST['item_id']
+        stock_item = get_object_or_404(StockItem, pk=item_id)
+        stock_item.delete()
+        response.status_code = 200
+        return response
+    else:
+        Http404("Why are you here?")