11 files changed, 205 insertions, 0 deletions
diff --git a/yacos/lending/__init__.py b/yacos/lending/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/yacos/lending/__init__.py
diff --git a/yacos/lending/admin.py b/yacos/lending/admin.py
new file mode 100644
index 0000000..5137704
--- /dev/null
+++ b/yacos/lending/admin.py
@@ -0,0 +1,7 @@
+from django.contrib import admin
+
+from .models import Person,Thing,Lending
+
+admin.site.register(Person)
+admin.site.register(Thing)
+admin.site.register(Lending)
diff --git a/yacos/lending/apps.py b/yacos/lending/apps.py
new file mode 100644
index 0000000..6fa1426
--- /dev/null
+++ b/yacos/lending/apps.py
@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class LendingConfig(AppConfig):
+    name = 'lending'
diff --git a/yacos/lending/migrations/0001_initial.py b/yacos/lending/migrations/0001_initial.py
new file mode 100644
index 0000000..65fe1fc
--- /dev/null
+++ b/yacos/lending/migrations/0001_initial.py
@@ -0,0 +1,49 @@
+# Generated by Django 2.2.3 on 2019-08-13 13:13
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Person',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('rfid', models.CharField(max_length=256)),
+                ('name', models.CharField(max_length=140, unique=True)),
+                ('created', models.DateTimeField(auto_now_add=True)),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Thing',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('rfid', models.CharField(max_length=256, unique=True)),
+                ('name', models.CharField(max_length=140)),
+                ('description', models.CharField(blank=True, max_length=9999)),
+                ('created', models.DateTimeField(auto_now_add=True)),
+                ('lent', models.BooleanField(default=False)),
+                ('image', models.ImageField(upload_to='')),
+                ('owner', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.PROTECT, related_name='owner', to='lending.Person')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Lending',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('purpose', models.CharField(max_length=5000, unique=True)),
+                ('begin', models.DateTimeField(auto_now_add=True)),
+                ('deadline', models.DateTimeField()),
+                ('returned', models.DateTimeField(blank=True, null=True)),
+                ('lender', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='borrows', to='lending.Person')),
+                ('thing', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='lent_to', to='lending.Thing')),
+            ],
+        ),
+    ]
diff --git a/yacos/lending/migrations/0002_auto_20190820_0501.py b/yacos/lending/migrations/0002_auto_20190820_0501.py
new file mode 100644
index 0000000..65c35f0
--- /dev/null
+++ b/yacos/lending/migrations/0002_auto_20190820_0501.py
@@ -0,0 +1,39 @@
+# Generated by Django 2.2.3 on 2019-08-20 05:01
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('lending', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='lending',
+            name='begin',
+            field=models.DateTimeField(auto_now=True),
+        ),
+        migrations.AlterField(
+            model_name='lending',
+            name='lender',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='borrows', to='lending.Person'),
+        ),
+        migrations.AlterField(
+            model_name='lending',
+            name='purpose',
+            field=models.CharField(max_length=1000, unique=True),
+        ),
+        migrations.AlterField(
+            model_name='lending',
+            name='thing',
+            field=models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='ilendings', to='lending.Thing'),
+        ),
+        migrations.AlterField(
+            model_name='thing',
+            name='description',
+            field=models.TextField(blank=True, max_length=9999),
+        ),
+    ]
diff --git a/yacos/lending/migrations/__init__.py b/yacos/lending/migrations/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/yacos/lending/migrations/__init__.py
diff --git a/yacos/lending/models.py b/yacos/lending/models.py
new file mode 100644
index 0000000..ee1e402
--- /dev/null
+++ b/yacos/lending/models.py
@@ -0,0 +1,35 @@
+from django.db import models
+
+class Person(models.Model):
+    rfid = models.CharField(max_length=256)
+    name = models.CharField(max_length=140, unique=True)
+    created = models.DateTimeField(auto_now_add=True)
+    def __str__(self):
+
+        return f"Person {self.name}"
+
+class Thing(models.Model):
+    rfid = models.CharField(max_length=256, unique=True)
+    name = models.CharField(max_length=140)
+    owner = models.ForeignKey(to=Person,
+            on_delete=models.PROTECT, related_name='owner',
+            null=True, blank=True)
+    description = models.TextField(max_length=9999, blank=True)
+    created = models.DateTimeField(auto_now_add=True)
+    lent = models.BooleanField(default=False)
+    image = models.ImageField()
+
+    def __str__(self):
+        return f"Thing {self.name}"
+
+class Lending(models.Model):
+    purpose = models.CharField(max_length=1000, unique=True)
+    begin = models.DateTimeField(auto_now=True)
+    deadline = models.DateTimeField()
+    returned = models.DateTimeField(null=True, blank=True) # if returned is empty -> leding finished
+    lender = models.ForeignKey(to=Person,
+            on_delete=models.SET_NULL,related_name='borrows',null=True)
+    thing  = models.ForeignKey(to=Thing, on_delete=models.CASCADE,
+            related_name='ilendings')
+    def __str__(self):
+        return f"Lending from {self.begin}, purpose: {self.purpose}, deadline: {self.deadline}"
diff --git a/yacos/lending/serializers.py b/yacos/lending/serializers.py
new file mode 100644
index 0000000..ccfb7fe
--- /dev/null
+++ b/yacos/lending/serializers.py
@@ -0,0 +1,30 @@
+from django.contrib.auth.models import User, Group
+from .models import Person, Thing, Lending
+from rest_framework import serializers
+
+
+class UserSerializer(serializers.HyperlinkedModelSerializer):
+    class Meta:
+        model = User
+        fields = ['url', 'username', 'email', 'groups']
+
+
+class GroupSerializer(serializers.HyperlinkedModelSerializer):
+    class Meta:
+        model = Group
+        fields = ['url', 'name']
+
+class PersonSerializer(serializers.HyperlinkedModelSerializer):
+    class Meta:
+        model = Person
+        fields = ['rfid', 'name','created']
+
+class ThingSerializer(serializers.HyperlinkedModelSerializer):
+    class Meta:
+        model = Thing
+        fields = ['rfid', 'name','owner','description','created','lent','image']
+
+class LendingSerializer(serializers.HyperlinkedModelSerializer):
+    class Meta:
+        model = Lending
+        fields = ['purpose', 'begin','deadline','returned','lender','thing']
diff --git a/yacos/lending/tests.py b/yacos/lending/tests.py
new file mode 100644
index 0000000..7ce503c
--- /dev/null
+++ b/yacos/lending/tests.py
@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.
diff --git a/yacos/lending/urls.py b/yacos/lending/urls.py
new file mode 100644
index 0000000..88a9cac
--- /dev/null
+++ b/yacos/lending/urls.py
@@ -0,0 +1,7 @@
+from django.urls import path
+
+from . import views
+
+urlpatterns = [
+    path('', views.index, name='index'),
+]
diff --git a/yacos/lending/views.py b/yacos/lending/views.py
new file mode 100644
index 0000000..3249246
--- /dev/null
+++ b/yacos/lending/views.py
@@ -0,0 +1,30 @@
+from django.shortcuts import render
+from django.http import HttpResponse
+
+from django.contrib.auth.models import User, Group
+from .models import Person, Thing, Lending
+from rest_framework import viewsets
+from .serializers import UserSerializer, GroupSerializer, PersonSerializer, ThingSerializer, LendingSerializer
+
+
+
+class UserViewSet(viewsets.ModelViewSet):
+    queryset = User.objects.all().order_by('-date_joined')
+    serializer_class = UserSerializer
+
+
+class GroupViewSet(viewsets.ModelViewSet):
+    queryset = Group.objects.all()
+    serializer_class = GroupSerializer
+
+class PersonViewSet(viewsets.ModelViewSet):
+    queryset = Person.objects.all().order_by('-created')
+    serializer_class = PersonSerializer
+
+class LendingViewSet(viewsets.ModelViewSet):
+    queryset = Lending.objects.all().order_by('-begin')
+    serializer_class = LendingSerializer
+
+class ThingViewSet(viewsets.ModelViewSet):
+    queryset = Thing.objects.all().order_by('-created')
+    serializer_class = ThingSerializer