Back to a kind of working state

Package version are now pinned.

model.py

@@ -19,14 +19,16 @@ class Post(db.Model):
 
     @property
     def serialize(self):
-        return {"id": self.id,
-                "priority": self.priority,
-                "category_id": self.category_id,
-                "category": self.category.name,
-                "title": self.title,
-                "intro": self.intro,
-                "description": self.description,
-                "images": [image.uri for image in self.images]}
+        return {
+            "id": self.id,
+            "priority": self.priority,
+            "category_id": self.category_id,
+            "category": self.category.name,
+            "title": self.title,
+            "intro": self.intro,
+            "description": self.description,
+            "images": [image.uri for image in self.images],
+        }
 
     @staticmethod
     def get_posts():
@@ -34,7 +36,11 @@ class Post(db.Model):
 
     @staticmethod
     def get_posts_with_category(category_id):
-        return Post.query.filter(Post.category_id == category_id).order_by(Post.priority).all()
+        return (
+            Post.query.filter(Post.category_id == category_id)
+            .order_by(Post.priority)
+            .all()
+        )
 
 
 class Image(db.Model):
@@ -53,6 +59,6 @@ class ImageBase64(db.Model):
 
 
 class Category(db.Model):
-    __tablename__ = "categories"
+    __tablename__ = "category"
     id = db.Column(db.Integer, primary_key=True)
     name = db.Column(db.String(80), nullable=False)