task_50.md

1. Role

1. role_name: CharField

2. Tool

1. tool_name: CharField

3. Tag

1. tag_name: CharField

4. News

1. author: ForeignKey(to=Profile)
2. title: CharField
3. description: CharField
4. image_url: ImageField
5. likes: PositiveIntegerField
6. is_open: BooleanField
7. topics: ManyToManyField
8. tags: ForeignKey(to=Tag)

5. SocialLink

1. link_name: CharField
2. url: URLField

6. Topic

1. topic_name = CharField

7. UsefulMaterial

1. title: CharField
2. description: CharField
3. image_url: ImageField
4. likes: PositiveIntegerField
5. link_name: CharField