Feature/Add option to randomize document order per user

app/server/api.py

@@ -3,7 +3,7 @@
 from django.conf import settings
 from django.shortcuts import get_object_or_404, redirect
 from django_filters.rest_framework import DjangoFilterBackend
-from django.db.models import Count
+from django.db.models import Count, F
 from libcloud.base import DriverType, get_driver
 from libcloud.storage.types import ContainerDoesNotExistError, ObjectDoesNotExistError
 from rest_framework import generics, filters, status
@@ -129,7 +129,13 @@ class DocumentList(generics.ListCreateAPIView):
     permission_classes = (IsAuthenticated, IsProjectUser, IsAdminUserAndWriteOnly)
 
     def get_queryset(self):
-        queryset = self.queryset.filter(project=self.kwargs['project_id'])
+        project = get_object_or_404(Project, pk=self.kwargs['project_id'])
+
+        queryset = self.queryset.filter(project=project)
+
+        if project.randomize_document_order:
+            queryset = queryset.annotate(sort_id=F('id') % self.request.user.id).order_by('sort_id')
+
         return queryset
 
     def perform_create(self, serializer):

app/server/forms.py

@@ -7,4 +7,4 @@ class ProjectForm(forms.ModelForm):
 
     class Meta:
         model = Project
-        fields = ('name', 'description', 'project_type', 'users')
+        fields = ('name', 'description', 'project_type', 'users', 'randomize_document_order')

app/server/migrations/0002_project_randomize_document_order.py

@@ -0,0 +1,18 @@
+# Generated by Django 2.1.7 on 2019-05-22 18:56
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('server', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='project',
+            name='randomize_document_order',
+            field=models.BooleanField(default=False),
+        ),
+    ]

app/server/models.py

@@ -25,6 +25,7 @@ class Project(PolymorphicModel):
     updated_at = models.DateTimeField(auto_now=True)
     users = models.ManyToManyField(User, related_name='projects')
     project_type = models.CharField(max_length=30, choices=PROJECT_CHOICES)
+    randomize_document_order = models.BooleanField(default=False)
 
     def get_absolute_url(self):
         return reverse('upload', args=[self.id])

app/server/serializers.py

@@ -75,31 +75,35 @@ class ProjectSerializer(serializers.ModelSerializer):
 
     class Meta:
         model = Project
-        fields = ('id', 'name', 'description', 'guideline', 'users', 'project_type', 'image', 'updated_at')
+        fields = ('id', 'name', 'description', 'guideline', 'users', 'project_type', 'image', 'updated_at',
+                  'randomize_document_order')
         read_only_fields = ('image', 'updated_at')
 
 
 class TextClassificationProjectSerializer(serializers.ModelSerializer):
 
     class Meta:
         model = TextClassificationProject
-        fields = ('id', 'name', 'description', 'guideline', 'users', 'project_type', 'image', 'updated_at')
+        fields = ('id', 'name', 'description', 'guideline', 'users', 'project_type', 'image', 'updated_at',
+                  'randomize_document_order')
         read_only_fields = ('image', 'updated_at', 'users')
 
 
 class SequenceLabelingProjectSerializer(serializers.ModelSerializer):
 
     class Meta:
         model = SequenceLabelingProject
-        fields = ('id', 'name', 'description', 'guideline', 'users', 'project_type', 'image', 'updated_at')
+        fields = ('id', 'name', 'description', 'guideline', 'users', 'project_type', 'image', 'updated_at',
+                  'randomize_document_order')
         read_only_fields = ('image', 'updated_at', 'users')
 
 
 class Seq2seqProjectSerializer(serializers.ModelSerializer):
 
     class Meta:
         model = Seq2seqProject
-        fields = ('id', 'name', 'description', 'guideline', 'users', 'project_type', 'image', 'updated_at')
+        fields = ('id', 'name', 'description', 'guideline', 'users', 'project_type', 'image', 'updated_at',
+                  'randomize_document_order')
         read_only_fields = ('image', 'updated_at', 'users')
 
 

app/server/static/components/projects.vue

@@ -42,6 +42,17 @@
                 option(value="Seq2seq") sequence to sequence
             p.help.is-danger {{ projectTypeError }}
 
+          div.field
+            label.checkbox
+              input(
+                v-model="randomizeDocumentOrder"
+                name="randomize_document_order"
+                type="checkbox"
+                style="margin-right: 0.25em;"
+                required
+              )
+              | Randomize document order per user
+
         footer.modal-card-foot.pt20.pb20.pr20.pl20.has-background-white-ter
           button.button.is-primary(v-on:click="create()") Create
           button.button(v-on:click="isActive = !isActive") Cancel
@@ -131,6 +142,7 @@ export default {
     projectNameError: '',
     username: '',
     isSuperuser: false,
+    randomizeDocumentOrder: false,
   }),
 
   computed: {
@@ -182,6 +194,7 @@ export default {
         name: this.projectName,
         description: this.description,
         project_type: this.projectType,
+        randomize_document_order: this.randomizeDocumentOrder,
         guideline: 'Please write annotation guideline.',
         resourcetype: this.resourceType(),
       };

app/server/tests/test_api.py

@@ -297,9 +297,14 @@ def setUpTestData(cls):
         cls.main_project = mommy.make('server.TextClassificationProject', users=[project_member, super_user])
         mommy.make('server.Document', project=cls.main_project)
 
+        cls.random_order_project = mommy.make('server.TextClassificationProject', users=[project_member, super_user],
+                                              randomize_document_order=True)
+        mommy.make('server.Document', 100, project=cls.random_order_project)
+
         sub_project = mommy.make('server.TextClassificationProject', users=[non_project_member])
         mommy.make('server.Document', project=sub_project)
         cls.url = reverse(viewname='doc_list', args=[cls.main_project.id])
+        cls.random_order_project_url = reverse(viewname='doc_list', args=[cls.random_order_project.id])
         cls.data = {'text': 'example'}
 
     def test_returns_docs_to_project_member(self):
@@ -308,6 +313,33 @@ def test_returns_docs_to_project_member(self):
         response = self.client.get(self.url, format='json')
         self.assertEqual(response.status_code, status.HTTP_200_OK)
 
+    def test_returns_docs_in_consistent_order_for_all_users(self):
+        self.client.login(username=self.project_member_name, password=self.project_member_pass)
+        user1_documents = self.client.get(self.url, format='json').json().get('results')
+        self.client.logout()
+
+        self.client.login(username=self.super_user_name, password=self.super_user_pass)
+        user2_documents = self.client.get(self.url, format='json').json().get('results')
+        self.client.logout()
+
+        self.assertEqual(user1_documents, user2_documents)
+
+    def test_can_return_docs_in_consistent_random_order(self):
+        self.client.login(username=self.project_member_name, password=self.project_member_pass)
+        user1_documents1 = self.client.get(self.random_order_project_url, format='json').json().get('results')
+        user1_documents2 = self.client.get(self.random_order_project_url, format='json').json().get('results')
+        self.client.logout()
+        self.assertEqual(user1_documents1, user1_documents2)
+
+        self.client.login(username=self.super_user_name, password=self.super_user_pass)
+        user2_documents1 = self.client.get(self.random_order_project_url, format='json').json().get('results')
+        user2_documents2 = self.client.get(self.random_order_project_url, format='json').json().get('results')
+        self.client.logout()
+        self.assertEqual(user2_documents1, user2_documents2)
+
+        self.assertNotEqual(user1_documents1, user2_documents1)
+        self.assertNotEqual(user1_documents2, user2_documents2)
+
     def test_do_not_return_docs_to_non_project_member(self):
         self.client.login(username=self.non_project_member_name,
                           password=self.non_project_member_pass)