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crm1_v14_registration_login/accounts/admin.py

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+from django.contrib import admin
+
+# Register your models here.
+
+from .models import *
+
+admin.site.register(Customer)
+admin.site.register(Product)
+admin.site.register(Tag)
+admin.site.register(Order)

crm1_v14_registration_login/accounts/apps.py

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+from django.apps import AppConfig
+
+
+class AccountsConfig(AppConfig):
+    name = 'accounts'

crm1_v14_registration_login/accounts/filters.py

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+import django_filters
+from django_filters import DateFilter, CharFilter
+
+from .models import *
+
+class OrderFilter(django_filters.FilterSet):
+	start_date = DateFilter(field_name="date_created", lookup_expr='gte')
+	end_date = DateFilter(field_name="date_created", lookup_expr='lte')
+	note = CharFilter(field_name='note', lookup_expr='icontains')
+
+
+	class Meta:
+		model = Order
+		fields = '__all__'
+		exclude = ['customer', 'date_created']

crm1_v14_registration_login/accounts/forms.py

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+from django.forms import ModelForm
+from django.contrib.auth.forms import UserCreationForm
+from django.contrib.auth.models import User
+from django import forms
+
+
+
+from .models import Order
+
+
+class OrderForm(ModelForm):
+	class Meta:
+		model = Order
+		fields = '__all__'
+
+class CreateUserForm(UserCreationForm):
+	class Meta:
+		model = User
+		fields = ['username', 'email', 'password1', 'password2']
+

crm1_v14_registration_login/accounts/migrations/0001_initial.py

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+# Generated by Django 3.0 on 2019-12-02 22:15
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Customer',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=200, null=True)),
+                ('phone', models.CharField(max_length=200, null=True)),
+                ('email', models.CharField(max_length=200, null=True)),
+                ('date_created', models.DateTimeField(auto_now_add=True, null=True)),
+            ],
+        ),
+    ]

crm1_v14_registration_login/accounts/migrations/0002_order_product.py

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+# Generated by Django 3.0 on 2019-12-02 22:35
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('accounts', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Order',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('date_created', models.DateTimeField(auto_now_add=True, null=True)),
+                ('status', models.CharField(choices=[('Pending', 'Pending'), ('Out for delivery', 'Out for delivery'), ('Delivered', 'Delivered')], max_length=200, null=True)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Product',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=200, null=True)),
+                ('price', models.FloatField(null=True)),
+                ('category', models.CharField(choices=[('Indoor', 'Indoor'), ('Out Door', 'Out Door')], max_length=200, null=True)),
+                ('description', models.CharField(max_length=200, null=True)),
+                ('date_created', models.DateTimeField(auto_now_add=True, null=True)),
+            ],
+        ),
+    ]

crm1_v14_registration_login/accounts/migrations/0003_auto_20191203_1454.py

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+# Generated by Django 3.0 on 2019-12-03 22:54
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('accounts', '0002_order_product'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='order',
+            name='customer',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, to='accounts.Customer'),
+        ),
+        migrations.AddField(
+            model_name='order',
+            name='product',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, to='accounts.Product'),
+        ),
+    ]

crm1_v14_registration_login/accounts/migrations/0004_auto_20191203_1502.py

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+# Generated by Django 3.0 on 2019-12-03 23:02
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('accounts', '0003_auto_20191203_1454'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Tag',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('name', models.CharField(max_length=200, null=True)),
+            ],
+        ),
+        migrations.AddField(
+            model_name='order',
+            name='tags',
+            field=models.ManyToManyField(to='accounts.Tag'),
+        ),
+    ]

crm1_v14_registration_login/accounts/migrations/0005_auto_20191203_1515.py

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+# Generated by Django 3.0 on 2019-12-03 23:15
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('accounts', '0004_auto_20191203_1502'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='order',
+            name='tags',
+        ),
+        migrations.AddField(
+            model_name='product',
+            name='tags',
+            field=models.ManyToManyField(to='accounts.Tag'),
+        ),
+    ]

crm1_v14_registration_login/accounts/migrations/0006_auto_20191213_1327.py

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+# Generated by Django 3.0 on 2019-12-13 21:27
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('accounts', '0005_auto_20191203_1515'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='order',
+            name='note',
+            field=models.CharField(max_length=1000, null=True),
+        ),
+        migrations.AlterField(
+            model_name='product',
+            name='description',
+            field=models.CharField(blank=True, max_length=200, null=True),
+        ),
+    ]

crm1_v14_registration_login/accounts/models.py

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+from django.db import models
+
+# Create your models here.
+
+class Customer(models.Model):
+	name = models.CharField(max_length=200, null=True)
+	phone = models.CharField(max_length=200, null=True)
+	email = models.CharField(max_length=200, null=True)
+	date_created = models.DateTimeField(auto_now_add=True, null=True)
+
+	def __str__(self):
+		return self.name
+
+
+class Tag(models.Model):
+	name = models.CharField(max_length=200, null=True)
+
+	def __str__(self):
+		return self.name
+
+class Product(models.Model):
+	CATEGORY = (
+			('Indoor', 'Indoor'),
+			('Out Door', 'Out Door'),
+			) 
+
+	name = models.CharField(max_length=200, null=True)
+	price = models.FloatField(null=True)
+	category = models.CharField(max_length=200, null=True, choices=CATEGORY)
+	description = models.CharField(max_length=200, null=True, blank=True)
+	date_created = models.DateTimeField(auto_now_add=True, null=True)
+	tags = models.ManyToManyField(Tag)
+
+	def __str__(self):
+		return self.name
+
+class Order(models.Model):
+	STATUS = (
+			('Pending', 'Pending'),
+			('Out for delivery', 'Out for delivery'),
+			('Delivered', 'Delivered'),
+			)
+
+	customer = models.ForeignKey(Customer, null=True, on_delete= models.SET_NULL)
+	product = models.ForeignKey(Product, null=True, on_delete= models.SET_NULL)
+	date_created = models.DateTimeField(auto_now_add=True, null=True)
+	status = models.CharField(max_length=200, null=True, choices=STATUS)
+	note = models.CharField(max_length=1000, null=True)
+
+	def __str__(self):
+		return self.product.name
+
+
+
+

crm1_v14_registration_login/accounts/queryDemos.py

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+#***(1)Returns all customers from customer table
+customers = Customer.objects.all()
+
+#(2)Returns first customer in table
+firstCustomer = Customer.objects.first()
+
+#(3)Returns last customer in table
+lastCustomer = Customer.objects.last()
+
+#(4)Returns single customer by name
+customerByName = Customer.objects.get(name='Peter Piper')
+
+#***(5)Returns single customer by name
+customerById = Customer.objects.get(id=4)
+
+#***(6)Returns all orders related to customer (firstCustomer variable set above)
+firstCustomer.order_set.all()
+
+#(7)***Returns orders customer name: (Query parent model values)
+order = Order.objects.first() 
+parentName = order.customer.name
+
+#(8)***Returns products from products table with value of "Out Door" in category attribute
+products = Product.objects.filter(category="Out Door")
+
+#(9)***Order/Sort Objects by id
+leastToGreatest = Product.objects.all().order_by('id') 
+greatestToLeast = Product.objects.all().order_by('-id') 
+
+
+#(10) Returns all products with tag of "Sports": (Query Many to Many Fields)
+productsFiltered = Product.objects.filter(tags__name="Sports")
+
+'''
+(11)Bonus
+Q: If the customer has more than 1 ball, how would you reflect it in the database?
+
+A: Because there are many different products and this value changes constantly you would most 
+likly not want to store the value in the database but rather just make this a function we can run
+each time we load the customers profile
+'''
+
+#Returns the total count for number of time a "Ball" was ordered by the first customer
+ballOrders = firstCustomer.order_set.filter(product__name="Ball").count()
+
+#Returns total count for each product orderd
+allOrders = {}
+
+for order in firstCustomer.order_set.all():
+	if order.product.name in allOrders:
+		allOrders[order.product.name] += 1
+	else:
+		allOrders[order.product.name] = 1
+
+#Returns: allOrders: {'Ball': 2, 'BBQ Grill': 1}
+
+
+#RELATED SET EXAMPLE
+class ParentModel(models.Model):
+	name = models.CharField(max_length=200, null=True)
+
+class ChildModel(models.Model):
+	parent = models.ForeignKey(ParentModel)
+	name = models.CharField(max_length=200, null=True)
+
+parent = ParentModel.objects.first()
+#Returns all child models related to parent
+parent.childmodel_set.all()
+