Implement Feed creation

backend/.gitignore

@@ -1,6 +1,7 @@
 venv
 *.pyc
 staticfiles
+media
 .env
 *.sqlite3
 *.sqlite

backend/app_be/models.py

@@ -1,26 +1,25 @@
+from django.core.validators import URLValidator, FileExtensionValidator
 from django.db import models
 
 
-# Create your models here.
 class User(models.Model):
     pass
 
 
-class Icon(models.Model):
-    image = models.ImageField(upload_to='feed_icons')
-
-
 class Feed(models.Model):
-    url = models.CharField(max_length=100)
+    url = models.TextField(blank=False, null=False, validators=[URLValidator(['http', 'https'])])
     active = models.BooleanField()
+    icon = models.FileField(upload_to='feed-icons', blank=True, null=True,
+                            validators=[FileExtensionValidator(['png', 'svg'])])
+    keywords = models.TextField(blank=False, null=False)
 
 
 class FeedEntry(models.Model):
+    feed = models.ForeignKey(Feed, on_delete=models.CASCADE)
     tweeted = models.BooleanField()
 
 
 class Tweet(models.Model):
-    icon = models.ForeignKey(Icon, on_delete=models.CASCADE)
     text = models.CharField(max_length=137)
     date_time = models.DateTimeField()
     url = models.CharField(max_length=100)

backend/app_be/serializers.py

@@ -1,3 +1,26 @@
-from rest_framework import serializers
+from rest_framework.exceptions import ValidationError
+from rest_framework.serializers import ModelSerializer
 
-# add serializer here
+from app_be.models import Feed
+
+
+class FeedSerializer(ModelSerializer):
+    class Meta:
+        model = Feed
+        fields = '__all__'
+
+    def validate_icon(self, value):
+        if value is not None and value.size > 10240:
+            raise ValidationError("Invalid icon: Maximum size is 10KB")
+        return value
+
+    def validate_keywords(self, value):
+        split = [x.strip() for x in value.split(',')]
+        if len(split) > 3:
+            raise ValidationError("Invalid keywords: No more than three entries")
+        elif len(split) == 0:
+            raise ValidationError("Invalid keywords: Need at least one entry")
+        for entry in split:
+            if len(entry) < 3:
+                raise ValidationError("Invalid keywords: Keywords have to be of length greater than 2")
+        return value

backend/app_be/settings.py

@@ -161,6 +161,9 @@ STATICFILES_DIRS = [
     os.path.join(PROJECT_ROOT, 'static'),
 ]
 
+MEDIA_ROOT = os.path.join(PROJECT_ROOT, 'media')
+MEDIA_URL = '/media/'
+
 # Simplified static file serving.
 # https://warehouse.python.org/project/whitenoise/
 STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'

backend/app_be/urls.py

@@ -28,5 +28,6 @@ urlpatterns = [
 ]
 
 router = DefaultRouter()
+router.register(r'feeds', FeedViewSet, basename='feeds')
 
 urlpatterns.extend(router.urls)

backend/app_be/views/rest_api.py

@@ -2,9 +2,14 @@ import logging
 
 from django.http import JsonResponse
 
-from rest_framework.decorators import api_view
 from py_jwt_validator import PyJwtValidator, PyJwtException
 
+from rest_framework.decorators import api_view
+from rest_framework.viewsets import ModelViewSet
+
+from app_be.models import Feed
+from app_be.serializers import FeedSerializer
+
 logger = logging.getLogger(__name__)
 
 
@@ -58,3 +63,8 @@ class TwitterClass:
     def getLastSixTweets():
         return JsonResponse({[{"asdf", "asdf", "sdfasdf", "asdf"}, {"asdf", "asdf", "sdfasdf", "asdf"}]}, safe=False,
                             status=200)
+
+
+class FeedViewSet(ModelViewSet):
+    queryset = Feed.objects.all()
+    serializer_class = FeedSerializer

backend/app_be/views/twitter.py

@@ -39,10 +39,10 @@ class twitter_bot:
     def scan_active_feed(self):
         starttime = time.time()
 
-        while True:
+        # while True:
             # Search RSS Feed
 
-            time.sleep(60.0 - ((time.time() - starttime) % 60.0))
+        #    time.sleep(60.0 - ((time.time() - starttime) % 60.0))
 
 
 twitter_bot = twitter_bot()