Only Generate Certificate Once

[devkjoon]

• the certificate is generated after the student completes and passes the test
• currently you are able to do this multiple times and every time, the certification is generated again
• make it so that the certification is generated only the first time

[devkjoon]

• the backend checks to see if the module.isfinaltest is in the completed modules
• if it isn't, then it adds it to completed modules and generates a certificate
• the email is then sent to the students email
• if the student retakes the test, the backend does not generate the certification again as its already in completed modules