personal-journal1/app/views/admin/journal_papers/merge.html.erb

<% content_for :page_specific_css do %>
  <%= stylesheet_link_tag "lib/main-forms" %>
  <%= stylesheet_link_tag "lib/fileupload" %>
  <%= stylesheet_link_tag "lib/main-list" %>
  <%= stylesheet_link_tag "lib/main-form-col2" %>
<% end %>
<table class="table main-list">
<thead>
<tr>
<th><%= t('personal_journal.paper_title') %></th>
<th><%= t('personal_journal.journal_title') %></th>
<% if params['mode']!='simple' %>
    <th><%= t('personal_journal.level_type') %></th>
    <th><%= t('personal_journal.author_type') %></th>
    <th><%= t('personal_journal.paper_type') %></th>
    <th><%= t('personal_journal.publication_date') %></th>
<% end %>
<th><%= t('module_name.personal_journal') %></th>
</tr>
</thead>
<tbody>
<% @journals.each do |key,journals| %>
<tr>
  <% if params['mode']=='simple'
        len = journals.length
     else
        len = journals.values.reduce(0){|sum,num| sum+num.length}
     end
  %>
  <td rowspan="<%= len %>">
    <%= key[0].values.map{|v| v=="" ? t('personal_journal.no_input') : v}.join('/') %>
  </td>
  <td rowspan="<%= len %>">
    <%= key[1].values.map{|v| v=="" ? t('personal_journal.no_input') : v}.join('/') %>
  </td>
  <% if params['mode']=='simple' %>
    <% journals.each_with_index do |journal,i| %>
        <td>
          <%= journal %>
        </td>
        <% if len!=(i+1) %>
          </tr>
          <tr>
        <% end %>
    <% end %>
  <% else %>
    <% i=0 %>
    <% journals.each do |k,v| %>
        <% j=0 %>
        <% puts ['hello',j,k,v] %>
        <% len1 = v.length %>
        <td rowspan="<%= len1 %>">
          <%= k[0] %>
        </td>
        <td rowspan="<%= len1 %>">
          <%= k[1] %>
        </td>
        <td rowspan="<%= len1 %>">
          <%= k[2] %>
        </td>
        <td rowspan="<%= len1 %>">
          <%= k[3] %>
        </td>
        <% v.each_with_index do |journal_child,index1| %>
          <% len2 = v.length %>
          <td>
            <%= journal_child %>
          </td>
          <% if len2!=(i+1) %>
            </tr>
            <tr>
          <% end %>
        <% end %>
        <% if len1!=(j+1) %>
          </tr>
          <tr>
        <% end %>
        <% j=j+1 
           i =i+1
        %>
      <% end %>
  <% end %>
</tr>
<% end %>
</tbody>
</table>