21 : Deleting a Job Post

Expired job posts need to be deleted, In this post, we will implement the logic for deletion. Again we will start with a failing test and then we will implement our logic so as to pass the failing test. Lets cook the test in tests > test_routes > test_jobs.py.

import json
from fastapi import status   #new


#... already existing code
#...

def test_delete_a_job(client):            #new
    data = {
        "title": "New Job super",
        "company": "doogle",
        "company_url": "www.doogle.com",
        "location": "USA,NY",
        "description": "fastapi",
        "date_posted": "2022-03-20"
        }
    client.post("/jobs/create-job/",json.dumps(data))
    msg = client.delete("/jobs/delete/1")
    response = client.get("/jobs/get/1/")
    assert response.status_code == status.HTTP_404_NOT_FOUNDCopy

This is a better test than the test for updation because we are not just relying on success msg, instead, we are actually testing the existence of the job-post. Now, if we run our test using pytest, It is sure to fail. So, let's create a route that will support deletion. Type the following code in apis > version1 > route_jobs.py

from db.repository.jobs import delete_job_by_id

@router.delete("/delete/{id}")
def delete_job(id: int,db: Session = Depends(get_db)):
    current_user_id = 1
    message = delete_job_by_id(id=id,db=db,owner_id=current_user_id)
    if not message:
        raise HTTPException(status_code=status.HTTP_404_NOT_FOUND,
                            detail=f"Job with id {id} not found")
    return {"msg":"Successfully deleted."}

Copy

One last thing, we need to query the database and delete the record. And this logic we are putting in db > repository > jobs.py

def delete_job_by_id(id: int,db: Session,owner_id):
    existing_job = db.query(Job).filter(Job.id == id)
    if not existing_job.first():
        return 0
    existing_job.delete(synchronize_session=False)
    db.commit()
    return 1Copy

Let's see our logic in action.