Notifications

api/admin.py

@@ -9,3 +9,4 @@
 admin.site.register(models.Task)
 admin.site.register(models.Access)
 admin.site.register(models.Label)
+admin.site.register(models.Notification)

api/migrations/0004_notification.py

@@ -0,0 +1,37 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10 on 2017-03-23 00:41
+from __future__ import unicode_literals
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('api', '0003_task_done'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Notification',
+            fields=[
+                ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('published_date', models.DateField(verbose_name='Published date')),
+                ('modification_date', models.DateField(blank=True, null=True, verbose_name='Modification Date')),
+                ('status', models.IntegerField(default=1, verbose_name='Status')),
+                ('target_type', models.CharField(max_length=50, verbose_name='Target type')),
+                ('target_id', models.PositiveIntegerField(verbose_name='Target ID')),
+                ('target_intention', models.CharField(max_length=50, verbose_name='Target intention')),
+                ('title', models.CharField(max_length=255, verbose_name='Title')),
+                ('text', models.TextField(verbose_name='Text')),
+                ('receiver', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='notifications_received', to=settings.AUTH_USER_MODEL, verbose_name='Receiver')),
+                ('sender', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='notification_sent', to=settings.AUTH_USER_MODEL, verbose_name='Sender')),
+            ],
+            options={
+                'verbose_name_plural': 'Notifications',
+            },
+        ),
+    ]

api/migrations/0005_notification_is_read.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10 on 2017-03-23 01:34
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('api', '0004_notification'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='notification',
+            name='is_read',
+            field=models.BooleanField(default=0, verbose_name='Is read'),
+        ),
+    ]

api/migrations/0006_task_created_by.py

@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10 on 2017-03-23 03:03
+from __future__ import unicode_literals
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('api', '0005_notification_is_read'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='task',
+            name='created_by',
+            field=models.ForeignKey(default=1, on_delete=django.db.models.deletion.CASCADE, related_name='task_created', to=settings.AUTH_USER_MODEL, verbose_name='Created by'),
+            preserve_default=False,
+        ),
+    ]

api/migrations/0007_auto_20170323_0350.py

@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10 on 2017-03-23 03:50
+from __future__ import unicode_literals
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('api', '0006_task_created_by'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='task',
+            name='created_by',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='task_created', to=settings.AUTH_USER_MODEL, verbose_name='Created by'),
+        ),
+    ]

api/migrations/0008_auto_20170323_0351.py

@@ -0,0 +1,23 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10 on 2017-03-23 03:51
+from __future__ import unicode_literals
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('api', '0007_auto_20170323_0350'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='task',
+            name='created_by',
+            field=models.ForeignKey(blank=True, default=1, on_delete=django.db.models.deletion.CASCADE, related_name='task_created', to=settings.AUTH_USER_MODEL, verbose_name='Created by'),
+            preserve_default=False,
+        ),
+    ]

api/migrations/0009_auto_20170323_0352.py

@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10 on 2017-03-23 03:52
+from __future__ import unicode_literals
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('api', '0008_auto_20170323_0351'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='task',
+            name='created_by',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, related_name='task_created', to=settings.AUTH_USER_MODEL, verbose_name='Created by'),
+        ),
+    ]

api/migrations/0010_auto_20170323_0353.py

@@ -0,0 +1,23 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.10 on 2017-03-23 03:53
+from __future__ import unicode_literals
+
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('api', '0009_auto_20170323_0352'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='task',
+            name='created_by',
+            field=models.ForeignKey(blank=True, default=1, on_delete=django.db.models.deletion.CASCADE, related_name='task_created', to=settings.AUTH_USER_MODEL, verbose_name='Created by'),
+            preserve_default=False,
+        ),
+    ]

api/models.py

@@ -4,6 +4,8 @@
 from django.db import models
 
 from django.contrib.auth.models import User
+from django.db.models.signals import post_save
+from django.dispatch import receiver
 
 
 RIGHT_ACCESS = (
@@ -107,6 +109,13 @@ class Meta:
         related_name="tasks"
     )
 
+    created_by = models.ForeignKey(
+        User,
+        verbose_name='Created by',
+        related_name='task_created',
+        blank=True
+    )
+
     assigned = models.ForeignKey(
         User,
         verbose_name='assigned',
@@ -255,3 +264,81 @@ class Meta:
 
     def __unicode__(self):
         return self.name
+
+
+class Notification(models.Model):
+    class Meta:
+        verbose_name_plural = "Notifications"
+
+    sender = models.ForeignKey(
+        User,
+        verbose_name='Sender',
+        related_name='notification_sent'
+    )
+
+    receiver = models.ForeignKey(
+        User,
+        verbose_name='Receiver',
+        related_name='notifications_received'
+    )
+
+    published_date = models.DateField(
+        verbose_name='Published date'
+    )
+
+    modification_date = models.DateField(
+        verbose_name='Modification Date',
+        blank=True,
+        null=True
+    )
+
+    status = models.IntegerField(
+        verbose_name='Status',
+        default=1
+    )
+
+    is_read = models.BooleanField(
+        verbose_name='Is read',
+        default=0
+    )
+
+    target_type = models.CharField(
+        verbose_name='Target type',
+        max_length=50
+    )
+
+    target_id = models.PositiveIntegerField(
+        verbose_name='Target ID'
+    )
+
+    target_intention = models.CharField(
+        verbose_name='Target intention',
+        max_length=50
+    )
+
+    title = models.CharField(
+        verbose_name='Title',
+        max_length=255
+    )
+
+    text = models.TextField(
+        verbose_name='Text',
+    )
+
+
+# Receivers
+@receiver(post_save, sender=Task, dispatch_uid="task_saved")
+def task_saved(sender, instance, created, *args, **kwargs):
+    # If the user creating the task is not the one assigned
+    if created and instance.assigned is not None and instance.assigned is not instance.created_by:
+        Notification.objects.create(
+            sender=instance.created_by,
+            receiver=instance.assigned,
+            published_date=instance.creation_date,
+            target_type="task",
+            target_id=instance.id,
+            target_intention="create",
+            title='You have been assigned to "%s"' % instance.name,
+            text=instance.description
+        )
+

api/serializers.py

@@ -172,6 +172,15 @@ class Meta:
 
     labels = BaseLabelSerializer(many=True, read_only=True)
 
+    created_by = UserSerializer(read_only=True)
+    created_by_id = serializers.PrimaryKeyRelatedField(
+        queryset=models.User.objects.all(),
+        source='created_by',
+        write_only=True,
+        required=False,
+        allow_null=True
+    )
+
     assigned = UserSerializer(read_only=True)
     assigned_id = serializers.PrimaryKeyRelatedField(
         queryset=models.User.objects.all(),
@@ -189,6 +198,27 @@ class Meta:
     )
 
 
+class NotificationSerializer(serializers.ModelSerializer):
+
+    class Meta:
+        model = models.Notification
+        fields = '__all__'
+
+    sender = UserSerializer(read_only=True)
+    sender_id = serializers.PrimaryKeyRelatedField(
+        queryset=models.User.objects.all(),
+        source='sender',
+        write_only=True
+    )
+
+    receiver = UserSerializer(read_only=True)
+    receiver_id = serializers.PrimaryKeyRelatedField(
+        queryset=models.User.objects.all(),
+        source='receiver',
+        write_only=True
+    )
+
+
 class FileSerializer(serializers.ModelSerializer):
 
     class Meta:

api/urls.py

@@ -16,6 +16,17 @@
             views.UserRetrieve.as_view(),
             name='users_detail'
         ),
+        # NOTIFICATION
+        url(
+            r'^notification$',
+            views.NotificationList.as_view(),
+            name='notification_list'
+        ),
+        url(
+            r'^notification/(?P<pk>\d+)$',
+            views.NotificationRetrieveUpdate.as_view(),
+            name='notification_detail'
+        ),
         # PROJECTS
         url(
             r'^projects$',