dmails: add search[title_matches] param.

app/models/dmail.rb

@@ -102,6 +102,11 @@ class Dmail < ActiveRecord::Base
       where("is_deleted = ?", true)
     end
 
+    def title_matches(query)
+      query = "*#{query}*" unless query =~ /\*/
+      where("lower(dmails.title) LIKE ?", query.to_escaped_for_sql_like)
+    end
+
     def search_message(query)
       if query =~ /\*/ && CurrentUser.user.is_builder?
         escaped_query = query.to_escaped_for_sql_like
@@ -131,6 +136,10 @@ class Dmail < ActiveRecord::Base
       q = where("true")
       return q if params.blank?
 
+      if params[:title_matches].present?
+        q = q.title_matches(params[:title_matches])
+      end
+
       if params[:message_matches].present?
         q = q.search_message(params[:message_matches])
       end

app/views/dmails/search.html.erb

@@ -4,6 +4,7 @@
 
     <%= simple_form_for(:search, url: dmails_path, method: :get, defaults: { required: false }, html: { class: "inline-form" }) do |f| %>
       <%= f.hidden_field :folder, value: params[:folder] %>
+      <%= f.input :title_matches, label: "Title", hint: "Use * for wildcard", input_html: { value: params[:search][:title_matches] } %>
       <%= f.input :message_matches, label: "Message", hint: "Use * for wildcard", input_html: { value: params[:search][:messages_matches] } %>
       <%= f.input :to_name, label: "To", input_html: { value: params[:search][:to_name] } %>
       <%= f.input :from_name, label: "From", input_html: { value: params[:search][:from_name] } %>