Hey OP,

For application of family visit visa is straight forward, just apply through the Metrash and MOI will no longer entertain such application unless your application have been rejected or other circumstances.
Just make sure you have your document (Marriage Certificate) authenticate with Philippine Embassy at your place of residence and then with Qatar Embassy at your place of residence.
Once you have done the authentication scan a soft copy and attach to Metrash.
Afterward, it wait for 3 days it longer then 5 days, you may proceed to immigration and seek for assistance.