From a23447bf2309a3f2c0736e8a2ccaeb2badcb220d Mon Sep 17 00:00:00 2001
From: Marcin Ciunelis <marcin.ciunelis@gmail.com>
Date: Thu, 9 Aug 2012 23:17:14 +0200
Subject: [PATCH] head and hidden tail for long tables

---
 app/assets/javascripts/errbit.js      |  5 +++++
 app/helpers/application_helper.rb     | 13 +++++++++++++
 app/views/errs/_tally_table.html.haml | 23 ++++++++++++++++++-----
 3 files changed, 36 insertions(+), 5 deletions(-)

diff --git a/app/assets/javascripts/errbit.js b/app/assets/javascripts/errbit.js
index 011b7cb..5bc03d9 100644
--- a/app/assets/javascripts/errbit.js
+++ b/app/assets/javascripts/errbit.js
@@ -130,5 +130,10 @@ $(function() {
   // Hide external backtrace on page load
   hide_external_backtrace();
 
+  $('.head a.show_tail').click(function(e) {
+    $(this).hide().closest('.head_and_tail').find('.tail').show();
+    e.preventDefault();
+  });
+
   init();
 });
diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 57539b2..19b9a5d 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -61,9 +61,22 @@ module ApplicationHelper
     render "errs/tally_table", :rows => rows
   end
 
+  def head(collection)
+    collection.first(head_size) 
+  end
+
+  def tail(collection)
+    collection.to_a[head_size..-1].to_a
+  end
+
   private
     def total_from_tallies(tallies)
       tallies.values.inject(0) {|sum, n| sum + n}
     end
+
+    def head_size
+      4
+    end
+
 end
 
diff --git a/app/views/errs/_tally_table.html.haml b/app/views/errs/_tally_table.html.haml
index bf54ce5..a09abde 100644
--- a/app/views/errs/_tally_table.html.haml
+++ b/app/views/errs/_tally_table.html.haml
@@ -1,5 +1,18 @@
-%table.tally
-  - rows.each do |row|
-    %tr
-      %td.percent= number_to_percentage(row[0], :precision => 1)
-      %th.value= row[1]
+.head_and_tail
+  %table.tally.head
+    %tbody
+      - head(rows).each do |row|
+        %tr
+          %td.percent= number_to_percentage(row[0], :precision => 1)
+          %th.value= row[1]
+    - if rows.size > head_size
+      %tfoot
+        %tr
+          %td{colspan: 2}
+            = link_to 'Show more...', '#', class: :show_tail
+  %table.tally.tail{style: "display: none"}
+    %tbody
+      - tail(rows).each do |row|
+        %tr
+          %td.percent= number_to_percentage(row[0], :precision => 1)
+          %th.value= row[1]
--
libgit2 0.21.2