Merge: Opportunity: intro ∇ ratio

Add the ∇ ratio to Opportunity with a customizable multiplier. It assigns weight to the choices of participants so that someone who select all possible answers puts less weight on each answer, and someone who choses a single answer puts her full weight on it.

It can be used to count the number of pizzas to order (with a multiplier of 0.4) and to give more importances to the available times of busy people when scheduling a meeting.

Pull-Request: #1783
Reviewed-by: Jean Privat <jean@pryen.org>
Reviewed-by: Lucas Bajolet <r4pass@hotmail.com>

diff --git a/contrib/opportunity/src/templates/meetup.nit b/contrib/opportunity/src/templates/meetup.nit
index 043c86b..c243407 100644 (file)
--- a/contrib/opportunity/src/templates/meetup.nit
+++ b/contrib/opportunity/src/templates/meetup.nit
@@ -46,6 +46,13 @@ class OpportunityMeetupPage
                        var scores = {};
                        var answers = [];
                        var maxscore = 0;
+
+                       // Pizza ratios
+                       var pizzas = {};
+                       var pizzas_person = {};
+                       var pizzas_total = 0.0;
+
+                       // Iterate over each participant x possible answers
                        for(i=0; i < anss.length; i++){
                                var incscore = 0;
                                var inccount = 0;
@@ -75,7 +82,48 @@ class OpportunityMeetupPage
                                if(scores[ansid] > maxscore){
                                        maxscore = scores[ansid];
                                }
+
+                               if (ansid in pizzas_person) {
+
+                                       // Pizza ratio of previous participant
+                                       for (a in pizzas_person) {
+                                               var value = pizzas_person[a];
+                                               if (value != 0.0 && pizzas_total != 0)
+                                                       value /= pizzas_total;
+
+                                               if (a in pizzas)
+                                                       pizzas[a] += value;
+                                               else
+                                                       pizzas[a] = value;
+                                       }
+
+                                       // Reset for a new person
+                                       pizzas_person = {};
+                                       pizzas_total = 0.0;
+                               }
+
+                               pizzas_total += incscore;
+                               pizzas_person[ansid] = incscore;
                        }
+
+                       // Pizza ratio of the last participant
+                       for (a in pizzas_person) {
+                               var value = pizzas_person[a];
+                               if (value != 0.0 && pizzas_total != 0)
+                                       value /= pizzas_total;
+
+                               if (a in pizzas)
+                                       pizzas[a] += value;
+                               else
+                                       pizzas[a] = value;
+                       }
+
+                       var pizza_unit = document.getElementById("pizza_unit").value;
+                       if (pizza_unit)
+                               pizza_unit = parseFloat(pizza_unit);
+                       else
+                               pizza_unit = 1;
+
                        for(i=0; i < answers.length; i++){
                                var ansid = answers[i].toString();
                                var el = $('#total'+ansid)[0];
@@ -85,7 +133,19 @@ class OpportunityMeetupPage
                                }
                                ins += "</center>";
                                el.innerHTML = ins;
+
+                               // Pizza ratio
+                               var val = pizzas[ansid] * pizza_unit;
+
+                               el = $('#pizzas'+ansid)[0];
+                               ins = "<center>"+val.toFixed(1);
+                               ins += "<br><span style=\\"color:orange\\">∇</span>";
+                               ins += "</center>";
+                               el.innerHTML = ins;
                        }
+
+                       var pizza_unit = $("#pizza_unit").val();
+                       set_cookie("opportunity_pizza_unit", pizza_unit);
                }
                function change_answer(ele, id){
                        // modify only the currently selected entry
@@ -274,8 +334,12 @@ class OpportunityMeetupPage
 
                // Retrieve the last client-side participant's name
                window.onload = function () {
-                       var name_field = document.getElementById("new_name");
-                       name_field.value = get_cookie("opportunity_participant_name");
+                       $("#new_name").val(get_cookie("opportunity_participant_name"));
+                       $("#new_name").focus();
+
+                       $("#pizza_unit").val(get_cookie("opportunity_pizza_unit"));
+
+                       update_scores();
                }
                """
        end
@@ -387,13 +451,19 @@ redef class Meetup
 <tr id="total">
        <th>Total ({{{participants(db).length}}})</th>
                """
-               for i in answers(db) do
-                       t.add """<th id="total{{{i.id}}}"><center>{{{i.count(db)}}}"""
-                       if scores.has_key(i.id) and scores[i.id] >= maxsc then
-                               t.add """<br/><span style="color:blue">★</span>"""
-                       end
-                       t.add "</center></th>"
-               end
+               for i in answers(db) do t.add """
+               <th id="total{{{i.id}}}"><center></center></th>
+"""
+               t.add """
+</tr>
+<tr id="pizzas">
+       <th>
+       {{{"%1 ratio × %2".format("<span style='color:orange'>∇</span>", "<input id='pizza_unit' type='number' placeholder='1' text='1' class='inputsm' style='width: 8ex !important;' onchange='update_scores()' onkeypress='update_scores()' onpaste='update_scores()' oninput='update_scores()'>")}}}
+       </th>
+"""
+               for i in answers(db) do t.add """
+               <th id="pizzas{{{i.id}}}"></center></th>
+"""
                t.add "</th>"
                t.add """
                <th></th>