How to get selected Item from a dropdown/select/selectyesno in moodle
Do you mean an element that has been submitted as part of a Moodle form?
Or do you mean a standalone 'single-select' (that redirects to a new page when selected)?
Or do you mean 'how do I access this via javascript on the page'?
Or do you mean 'how do I get the value of a setting I added to the global settings page'?
Please describe exactly what you are doing and someone should then be able to give you some help.
I need to display info on the block based on the value selected from the select. What I mean is that, I have created a custom block and I need to run the query to pull record from the quiz so that it can be displayed on the block,
e.g
//This is the selectyesno which I need to get a selected value from
$mform->addElement('selectyesno', 'my_yes_no', get_string('my_yes_no_order', 'quiz'));
// The $selectedItem should be the value fro the selectyesno
e.g $DB->get_record_sql('SELECT * FROM {quiz} WHERE flag = :flag', array('flag' => $selectedItem), $strictness=IGNORE_MULTIPLE);
...Thanks in advance
If this is in a block and the form you edited was the instance settings form for the block, then you should be able to write:
$selecteditem = $this->config->my_yes_no;
(As an aside, you should avoid names with underscores in them, Moodle code guidelines would have 'myyesno' as the name).
No the selectyesno is in mod_quiz_mod_form class and I need to get the selected value from this class and pass it to the block
Well, there isn't a my_yes_no setting in mod_quiz_mod_form, so I can only assume this is a local modification to the quiz module.
If you have made a local change there, then you also need to update mod/quiz/db/install.xml + mod/quiz/db/upgrade.php to add somewhere to store the results of this setting, then you need to check the functions quiz_add_instance and quiz_update_instance in mod/quiz/lib.php to make sure this setting is being saved into these new DB fields (which it may be already). Then you can look in the table mdl_quiz to see the value that was inserted when the quiz was saved.
As always, you will find plugins a lot easier to maintain if they don't involve making changes to the core Moodle code (and apologies if I've misunderstood and you haven't done that).
Oh thank you I think I now get you