implement cancel button to cancel login profedure and continue with the

next entry

lib/db.py

@@ -91,8 +91,10 @@ def writedb(jobs):
                 log(hash1);
                 if(cursor.execute("SELECT * FROM jobs WHERE hash = ?",(hash1,)).fetchone() != None):
                     log("Hash already exist")
+                elif(cursor.execute("SELECT * FROM jobs where link = ?",(job.link,)).fetchone() != None):
+                    log("link already exist")
                 else:
-                    print("NEW_ENTRY")
+                    log("NEW_ENTRY")
                     cursor.execute("INSERT INTO jobs (star,tag,title,company,location,link,pubdate,hash,viewed) VALUES (?,?,?,?,?,?,?,?,?)",(job.starred,job.tag,job.title,job.company,job.location,job.link,job.date,hash1,0))
 
 def viewedEntry(hash1):