disapprove papers endpoint

backend/handlers.go

@@ -104,7 +104,7 @@ func HandleApprovePaper(w http.ResponseWriter, r *http.Request) {
 	// log line to help which entry was made by deleting which paper for recovery
 	config.Get().Logger.Infof("HandleApprovePaper: Id %d added against Id %d", id, qpDetails.ID)
 
-	err = db.MarkPaperAsSoftDeletedAndUnApprove(qpDetails.ID)
+	err = db.MarkPaperAsSoftDeletedAndUnApprove(qpDetails.ID, approverUsername)
 	if err != nil {
 		utils.DeleteFile(destFile)
 		sendErrorResponse(w, http.StatusInternalServerError, "error updating paper details!", nil)
@@ -352,6 +352,29 @@ func HandleFileUpload(w http.ResponseWriter, r *http.Request) {
 	sendResponse(w, http.StatusAccepted, response)
 }
 
+func HandleDeletePaper(w http.ResponseWriter, r *http.Request) {
+	approverUsername := r.Context().Value(CLAIMS_KEY).(*Claims).Username
+	db := db.GetDB()
+	var requestBody struct {
+		Id int `json:"id"`
+	}
+	decoder := json.NewDecoder(r.Body)
+	if err := decoder.Decode(&requestBody); err != nil {
+		sendErrorResponse(w, http.StatusInternalServerError, "Could not find Question Paper, Try Later!", nil)
+		config.Get().Logger.Errorf("HandleDeletePaper: could not approve paper, invalid Body: %+v", err.Error())
+		return
+	}
+
+	err := db.MarkPaperAsSoftDeletedAndUnApprove(requestBody.Id, approverUsername)
+	if err != nil {
+		sendErrorResponse(w, http.StatusInternalServerError, "error updating paper details!", nil)
+		config.Get().Logger.Errorf("HandleDeletePaper: error soft-deleting paper: %+v PaperDetails: %d", err.Error(), requestBody.Id)
+		return
+	}
+	config.Get().Logger.Infof("HandleDeletePaper: disapproved paper: %d", requestBody.Id)
+	sendResponse(w, http.StatusOK, httpResp{Message: "File Disapproved successfully"})
+}
+
 func populateDB(filename string) error {
 	db := db.GetDB()
 	qpData := strings.Split(filename, "_")

backend/main.go

@@ -26,6 +26,7 @@ func main() {
 	http.Handle("GET /unapproved", JWTMiddleware(http.HandlerFunc(ListUnapprovedPapers)))
 	http.Handle("GET /all", JWTMiddleware(http.HandlerFunc(ListAllPapers)))
 	http.Handle("POST /approve", JWTMiddleware(http.HandlerFunc(HandleApprovePaper)))
+	http.Handle("POST /delete", JWTMiddleware(http.HandlerFunc(HandleDeletePaper)))
 
 	logger := config.Get().Logger
 	c := cors.New(cors.Options{

backend/pkg/db/db.go

@@ -24,7 +24,7 @@ const init_db = `CREATE TABLE IF NOT EXISTS iqps (
 	course_code TEXT NOT NULL DEFAULT '',
 	course_name TEXT NOT NULL,
 	year INTEGER NOT NULL,
-    exam TEXT CHECK (exam IN ('midsem', 'endsem') OR exam = ''),
+    exam TEXT,
     filelink TEXT NOT NULL,
     from_library BOOLEAN DEFAULT FALSE,
     upload_timestamp TIMESTAMP DEFAULT CURRENT_TIMESTAMP,

backend/pkg/db/query.go

@@ -54,10 +54,11 @@ func (db *db) InsertNewPaper(qpDetails *models.QuestionPaper) (int, error) {
 	return id, nil
 }
 
-func (db *db) MarkPaperAsSoftDeletedAndUnApprove(qpID int) error {
-	query := "UPDATE iqps set approve_status=false, is_deleted = true where id=@qpID and is_deleted=false"
+func (db *db) MarkPaperAsSoftDeletedAndUnApprove(qpID int, approvedBy string) error {
+	query := "UPDATE iqps set approve_status=false, is_deleted = true, approved_by=@approved_by where id=@qpID and is_deleted=false"
 	params := pgx.NamedArgs{
-		"qpID": qpID,
+		"qpID":        qpID,
+		"approved_by": approvedBy,
 	}
 
 	ct, err := db.Db.Exec(context.Background(), query, params)