nickyrabit

So as im learning Flask and PostgreSQL, and i have been learning to host the Flask app into Heroku and i found some of these tiny tips for you guys to know because it
may be hard for you guys who are beginners like me to maneouver in this envirinment

ENABLE LOGGIN IN HEROKU
heroku logs --tail

TO ALLOCATE YOUR DABATABASE IN HEROKU CLI (COMMAND PROMPT RECEIVING HEROKU COMMANDS)

heroku pg:psql "POSTGREAPP NAME" --app ""database name"

nickyrabit

//in my example im creating a json object from json array 
JSONObject object = jArr.getJSONObject(i);
//getting an JSONArray from JSONObject
JSONArray roleJSONArray = object.getJSONArray("roles");
                    
//This is where i check the null json object if "location" value comes null
//Step 1: check if its null using isNull
if(object.isNull("location")){
//override the key value from location to another value
 object.put("location", "N/A");

nickyrabit

//this is the method
//R.id.frame should be R.id.name_of_your_frame_layout
public void goToFragment(Fragment fragment) {
        FragmentTransaction transaction = getFragmentManager().beginTransaction();
        transaction.replace(R.id.frame, fragment);
        transaction.addToBackStack(null);
        transaction.commit();
    }

nickyrabit

CREATE OR REPLACE FUNCTION refresh_all_materialized_views()
RETURNS VOID AS $$
DECLARE
   matview RECORD;
   total_views INTEGER;
   views_processed INTEGER := 0;
BEGIN
   SELECT COUNT(*) INTO total_views FROM pg_matviews;
   FOR matview IN (SELECT schemaname, matviewname FROM pg_matviews)
   LOOP