Installation of "Select for Participants" into Choice activity


Add file selecfor.php to root/mod/choice/


Add the following lines to root/lang/xx/choice.php:

	$string['selectfor'] = 'Select for Participants';
	$string['savechoices'] = 'Save choices for participants';
	$string['randomselect'] = 'Randomly assign participants';
	$string['nochoice'] = 'No Choice';
	$string['overlimit'] = 'One or more selections failed because the option would be over its limit.';
	$string['selectionfailed'] = 'Can not assign $a to choice ';
	$string['notenoughspace'] = 'There are more participants than spaces available.  Make adjustments and try again.';



Add the following code to root/mod/choice/view.php, near line 78

	// existing code
    if (has_capability('mod/choice:readresponses', $context)) {
        choice_show_reportlink($allresponses, $cm);
    }

	// start new code -- add these lines
    if (has_capability('mod/choice:deleteresponses', $context)) {
        choice_show_selectfor_link($cm);
    }
	// end new code
	
	//existing code
    echo '<div class="clearer"></div>';



Add the following code to root/mod/choice/report.php, near line 206

	// existing code
        exit;
    }
	
	// start new code -- add these lines
	if (has_capability('mod/choice:deleteresponses', $context) /* and $choice->showunanswered */) {
        choice_show_selectfor_link($cm);
    }
	// end new code
	
	//existing code
    choice_show_results($choice, $course, $cm, $users, $format); //show table with students responses.


Add the following new function to root/mod/choice/lib.php

	function choice_show_selectfor_link($cm, $choice){
			echo '<div class="reportlink">';
			echo "<a href=\"selectfor.php?id=$cm->id\">".get_string("selectfor", "choice")."</a>";
			echo '</div>';
	}


To do: 

1) Change references to capability "deleteresponses" in selectfor.php, view.php and report.php to a 
new separate capability.

2) Work on logic for random distribution when some participants have already made a selection.