Cr add tag to post

[CheoR]

Description

While there is no post detail, user can only add tag to post through Postman.

Closes #10

Type of change

• [ ] Bug fix (non-breaking change which fixes an issue)
• [X] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

Testing Instructions

While there is no post detail, user can only add tag to post through Postman.

git fetch --all git checkout cr-add-tag-to-post watchgod request_handler.main

In SQL file run,

INSERT INTO Posts ("user_id", "category_id", "title", "publication_date", "image_url", "content", "approved" )
VALUES(1, 1,'title 1',DATETIME(),"", 'post 1',true);

INSERT INTO Tags ('label') VALUES('TESTINGS1');

-- GET THEIR POST AND TAG ID FROM THEIR TABLES

SELECT * FROM Posts;
SELECT * FROM Tags;

-- CONFIRM TAGS ALREADY ASSIGNED TO POSTS
SELECT * FROM PostTags;

In Postman'sPOST tab, select body -> raw and add the following to the body:

    {
        "post_id": LAST POST ID,
        "tag_id": LAST TAB ID
    }

In SQL file, verify tag added to post.

SELECT * FROM PostTags;

Checklist:

• [X] My code follows the style guidelines of this project
• [X] I have performed a self-review of my own code
• [X] I have commented my code, particularly in hard-to-understand areas
• [X] My changes generate no new warnings or errors
• [X] I have added test instructions that prove my fix is effective or that my feature works