fix start of timeline

app/helpers/timeline_helper.rb

@@ -9,6 +9,7 @@ module TimelineHelper
   def max_days
     @weeks * 7
   end
+  # number of days from start of month to start of stay
   def started_days(member)
     return 0 unless member.arriving
     return 0 if member.arriving < Date.today.at_beginning_of_month
@@ -18,11 +19,13 @@ module TimelineHelper
   def left_max
     Date.today.at_beginning_of_month + 3.months
   end
+
+  # amount of days of the stay, maxed at the number fo weeks shown
   def stay_days(member)
     return 0 unless member.leaving
     start = member.arriving
     start = Date.today.at_beginning_of_month if member.arriving < Date.today.at_beginning_of_month
-    distance = ( member.leaving - member.arriving ).to_i
+    distance = ( member.leaving - start ).to_i
     max = max_days - started_days(member)
     distance > max ? max : distance
   end

app/views/timeline/index.haml

@@ -18,7 +18,7 @@
     - @members.each_with_index do |member , index|
       %tr{class: bg_for(index)}
         - if( (days = started_days(member)) > 0)
-          %td.bg-white{colspan: started_days(member)}
+          %td.bg-white{colspan: days }
         - if( (days = stay_days(member)) < 14)
           %td{colspan: days}
             = small_date(member.arriving)