src/main/java/seedu/address/model/ModelManager.java
@Override
    public boolean hasProgress(ID assignmentID, ID studentID) throws CommandException {
        CompositeID target = new CompositeID(assignmentID, studentID);
        return has(target, Constants.ENTITY_TYPE.PROGRESS);
    }
/**
     * Indicate if address book has a given progress.
     */
Indicate if address book has a given progress.
Indicate if address book has a given progress .
@Override
    public boolean hasProgress(ID assignmentID, ID studentID) throws CommandException {
        CompositeID target = new CompositeID(assignmentID, studentID);
        return has(target, Constants.ENTITY_TYPE.PROGRESS);
    }
@ Override public boolean hasProgress ( ID assignmentID , ID studentID ) throws CommandException { CompositeID target = new CompositeID ( assignmentID , studentID ) ; return has ( target , Constants . ENTITY_TYPE . PROGRESS ) ; }
Indicate if address book has a given progress.
Indicate if address book has a given progress .