feature: add djangoldp_project to module #3

migrations/0004_auto_20190117_0215.py

+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.18 on 2019-01-17 02:15
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('djangoldp_project', '0002_move_jabber'),
+        ('djangoldp_invoices', '0003_auto_20190114_1630'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='clientinvoice',
+            name='customer',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.DO_NOTHING, to='djangoldp_project.Customer'),
+        ),
+        migrations.AddField(
+            model_name='clientinvoice',
+            name='project',
+            field=models.ForeignKey(null=True, on_delete=django.db.models.deletion.DO_NOTHING, to='djangoldp_project.Project'),
+        ),
+    ]

models.py

 # -*- coding: utf-8 -*-
 from django.conf import settings
 from django.db import models
+from  djangoldp_project.models import Customer
+from  djangoldp_project.models import Project
 from django.db.models import Sum
 import datetime
 from decimal import Decimal
@@ -40,8 +42,8 @@ class FreelanceInvoice(models.Model):
 
 
 class ClientInvoice(models.Model):
-    # customer = models.ForeignKey('xxx.Client', on_delete=models.CASCADE)
-    # project = models.ForeignKey('xxx.Project', on_delete=models.CASCADE)
+    customer = models.ForeignKey(Customer, on_delete=models.DO_NOTHING, null=True)
+    project = models.ForeignKey(Project, on_delete=models.DO_NOTHING, null=True)
     STATES = (
       ('pending', 'en attente'),
       ('paid', 'réglée')

urls.py

@@ -9,9 +9,9 @@ from .models import Task
 urlpatterns = [
     url(r'^freelance-invoices/', LDPViewSet.urls(model=FreelanceInvoice)),
     url(r'^client-invoices/', LDPViewSet.urls(model=ClientInvoice, 
-        nested_fields=["batches"],
+        nested_fields=["batches", "project", "customer"],
         fields=["@id", "identifier", "title", "state", "htAmount", "tvaRate", "invoicingDate",
-        "tvaAmount", "ttcAmount", "batches"]
+        "tvaAmount", "ttcAmount", "batches", "project", "customer"]
     )),
     url(r'^batches/', LDPViewSet.urls(model=Batch,
         nested_fields=["tasks"],