Question

So my situation is this. I have two tables, e.g. employee and department. When a new employee is made, there is a spinner which is populated from the departments database, when this is selected it inserts it in to a field in the employee table.

What I am trying to do is have a list of departments and once the department is clicked, it shows all employee’s that belong to that department.

So heres what I have so far, the first code is from my class which displays the department list:

    protected void onListItemClick(ListView l, View v, int position, long empDept) {
        super.onListItemClick(l, v, position, empDept);
        Intent i = new Intent(this, EmployeeActivity.class);
        i.putExtra(DatabaseAdapter.DEPT_NAME, empDept);
        startActivityForResult(i, ACTIVITY_START); 
    }

I am passing this to the employee list activity, I have tested the code by just displaying everything so it is working to some extent but when I am trying to view by the selected dept name it returns nothing, here is the section of the class that receives the intent:

private void fillData() {

        Bundle extras = getIntent().getExtras(); 
        long result = extras.getLong("empDept");

        Cursor empCursor= DbHelper.getEmpByDept(result);

        startManagingCursor(empCursor);

And here is my database query:

 public Cursor getEmpByDept(long empDept)
 {
     return mDb.query(EMP_TABLE, new String[] { EMP_ID, EMP_TITLE,
                EMP_NOTES, EMP_DATE_TIME, EMP_DEPT }, EMP_DEPT + "=" + empDept, null,
                null, null, null, null);
 }

So what I’m trying to do is just show the employees when the department clicked matches what is in the employees EMP_DEPT field.

Any help is greatly appreciated.

Answer 1

in extras.getLong() the input is the key of the bundle, that is DatabaseAdapter.DEPT_NAME and not "empDept". Also make sure that DatabaseAdapter.DEPT_NAME, the key, includes a proper package prefix as indicated in the doc.

btw.: you don’t need the last null in the query which is optional and refers to LIMIT (if you don’t have one)