Search engines now supports pagination.

Results are sorted in reverse chronological order.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@766 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/controllers/search_controller.rb

@@ -26,6 +26,9 @@ class SearchController < ApplicationController
     @question.strip!
     @all_words = params[:all_words] || (params[:submit] ? false : true)
     
+    offset = nil
+    begin; offset = params[:offset].to_time if params[:offset]; rescue; end
+    
     # quick jump to an issue
     if @question.match(/^#?(\d+)$/) && Issue.find_by_id($1, :include => :project, :conditions => Project.visible_by(logged_in_user))
       redirect_to :controller => "issues", :action => "show", :id => $1
@@ -38,14 +41,11 @@ class SearchController < ApplicationController
     end
     
     if @project
-      @object_types = %w(projects issues changesets news documents wiki_pages messages)
-      @object_types.delete('wiki_pages') unless @project.wiki
-      @object_types.delete('changesets') unless @project.repository
       # only show what the user is allowed to view
+      @object_types = %w(issues news documents changesets wiki_pages messages)
       @object_types = @object_types.select {|o| User.current.allowed_to?("view_#{o}".to_sym, @project)}
       
       @scope = @object_types.select {|t| params[t]}
-      # default objects to search if none is specified in parameters
       @scope = @object_types if @scope.empty?
     else
       @object_types = @scope = %w(projects)
@@ -60,20 +60,26 @@ class SearchController < ApplicationController
       # strings used in sql like statement
       like_tokens = @tokens.collect {|w| "%#{w.downcase}%"}
       operator = @all_words ? " AND " : " OR "
-      limit = 10
       @results = []
+      limit = 10
       if @project        
-        @results += @project.issues.find(:all, :limit => limit, :include => :author, :conditions => [ (["(LOWER(subject) like ? OR LOWER(description) like ?)"] * like_tokens.size).join(operator), * (like_tokens * 2).sort] ) if @scope.include? 'issues'
-        Journal.with_scope :find => {:conditions => ["#{Issue.table_name}.project_id = ?", @project.id]} do
-          @results += Journal.find(:all, :include => :issue, :limit => limit, :conditions => [ (["(LOWER(notes) like ? OR LOWER(notes) like ?)"] * like_tokens.size).join(operator), * (like_tokens * 2).sort] ).collect(&:issue) if @scope.include? 'issues'
+        @scope.each do |s|
+          @results += s.singularize.camelcase.constantize.search(like_tokens, @all_words, @project, 
+          :limit => (limit+1), :offset => offset, :before => params[:previous].nil?)
         end
-        @results.uniq!
-        @results += @project.news.find(:all, :limit => limit, :conditions => [ (["(LOWER(title) like ? OR LOWER(description) like ?)"] * like_tokens.size).join(operator), * (like_tokens * 2).sort], :include => :author ) if @scope.include? 'news'
-        @results += @project.documents.find(:all, :limit => limit, :conditions => [ (["(LOWER(title) like ? OR LOWER(description) like ?)"] * like_tokens.size).join(operator), * (like_tokens * 2).sort] ) if @scope.include? 'documents'
-        @results += @project.wiki.pages.find(:all, :limit => limit, :include => :content, :conditions => [ (["(LOWER(title) like ? OR LOWER(text) like ?)"] * like_tokens.size).join(operator), * (like_tokens * 2).sort] ) if @project.wiki && @scope.include?('wiki_pages')
-        @results += @project.repository.changesets.find(:all, :limit => limit, :conditions => [ (["(LOWER(comments) like ?)"] * like_tokens.size).join(operator), * (like_tokens).sort] ) if @project.repository && @scope.include?('changesets')
-        Message.with_scope :find => {:conditions => ["#{Board.table_name}.project_id = ?", @project.id]} do
-          @results += Message.find(:all, :include => :board, :limit => limit, :conditions => [ (["(LOWER(subject) like ? OR LOWER(content) like ?)"] * like_tokens.size).join(operator), * (like_tokens * 2).sort] ) if @scope.include? 'messages'
+        @results = @results.sort {|a,b| b.event_datetime <=> a.event_datetime}
+        if params[:previous].nil?
+          @pagination_previous_date = @results[0].event_datetime if offset && @results[0]
+          if @results.size > limit
+            @pagination_next_date = @results[limit-1].event_datetime 
+            @results = @results[0, limit]
+          end
+        else
+          @pagination_next_date = @results[-1].event_datetime if offset && @results[-1]
+          if @results.size > limit
+            @pagination_previous_date = @results[-(limit)].event_datetime 
+            @results = @results[-(limit), limit]
+          end
         end
       else
         Project.with_scope(:find => {:conditions => Project.visible_by(logged_in_user)}) do
@@ -86,6 +92,7 @@ class SearchController < ApplicationController
     else
       @question = ""
     end
+    render :layout => false if request.xhr?
   end
 
 private  

app/helpers/search_helper.rb

@@ -17,7 +17,7 @@
 
 module SearchHelper
   def highlight_tokens(text, tokens)
-    return text unless tokens && !tokens.empty?
+    return text unless text && tokens && !tokens.empty?
     regexp = Regexp.new "(#{tokens.join('|')})", Regexp::IGNORECASE    
     result = ''
     text.split(regexp).each_with_index do |words, i|

app/models/changeset.rb

@@ -25,6 +25,11 @@ class Changeset < ActiveRecord::Base
                 :datetime => :committed_on,
                 :author => :committer,
                 :url => Proc.new {|o| {:controller => 'repositories', :action => 'revision', :id => o.repository.project_id, :rev => o.revision}}
+                
+  acts_as_searchable :columns => 'comments',
+                     :include => :repository,
+                     :project_key => "#{Repository.table_name}.project_id",
+                     :date_column => 'committed_on'
   
   validates_presence_of :repository_id, :revision, :committed_on, :commit_date
   validates_numericality_of :revision, :only_integer => true

app/models/document.rb

@@ -20,7 +20,9 @@ class Document < ActiveRecord::Base
   belongs_to :category, :class_name => "Enumeration", :foreign_key => "category_id"
   has_many :attachments, :as => :container, :dependent => :destroy
 
-  acts_as_event :url => Proc.new {|o| {:controller => 'documents', :action => 'show', :id => o.id}}
+  acts_as_searchable :columns => ['title', 'description']
+  acts_as_event :title => Proc.new {|o| "#{l(:label_document)}: #{o.title}"},
+                :url => Proc.new {|o| {:controller => 'documents', :action => 'show', :id => o.id}}
 
   validates_presence_of :project, :title, :category
   validates_length_of :title, :maximum => 60

app/models/issue.rb

@@ -36,8 +36,9 @@ class Issue < ActiveRecord::Base
   has_many :relations_to, :class_name => 'IssueRelation', :foreign_key => 'issue_to_id', :dependent => :delete_all
   
   acts_as_watchable
+  acts_as_searchable :columns => ['subject', 'description'], :with => {:journal => :issue}
   acts_as_event :title => Proc.new {|o| "#{o.tracker.name} ##{o.id}: #{o.subject}"},
-                :url => Proc.new {|o| {:controller => 'issues', :action => 'show', :id => o.id}}
+                :url => Proc.new {|o| {:controller => 'issues', :action => 'show', :id => o.id}}                
   
   validates_presence_of :subject, :description, :priority, :tracker, :author, :status
   validates_length_of :subject, :maximum => 255

app/models/journal.rb

@@ -23,4 +23,9 @@ class Journal < ActiveRecord::Base
   
   belongs_to :user
   has_many :details, :class_name => "JournalDetail", :dependent => :delete_all
+  
+  acts_as_searchable :columns => 'notes',
+                     :include => :issue,
+                     :project_key => "#{Issue.table_name}.project_id",
+                     :date_column => "#{Issue.table_name}.created_on"
 end

app/models/message.rb

@@ -22,6 +22,11 @@ class Message < ActiveRecord::Base
   has_many :attachments, :as => :container, :dependent => :destroy
   belongs_to :last_reply, :class_name => 'Message', :foreign_key => 'last_reply_id'
   
+  acts_as_searchable :columns => ['subject', 'content'], :include => :board, :project_key => "project_id"
+  acts_as_event :title => Proc.new {|o| "#{o.board.name}: #{o.subject}"},
+                :description => :content,
+                :url => Proc.new {|o| {:controller => 'messages', :action => 'show', :board_id => o.board_id, :id => o.id}}
+  
   validates_presence_of :subject, :content
   validates_length_of :subject, :maximum => 255
   

app/models/news.rb

@@ -24,6 +24,7 @@ class News < ActiveRecord::Base
   validates_length_of :title, :maximum => 60
   validates_length_of :summary, :maximum => 255
 
+  acts_as_searchable :columns => ['title', 'description']
   acts_as_event :url => Proc.new {|o| {:controller => 'news', :action => 'show', :id => o.id}}
 
   # returns latest news for projects visible by user

app/models/project.rb

@@ -38,7 +38,11 @@ class Project < ActiveRecord::Base
   has_one :wiki, :dependent => :destroy
   has_and_belongs_to_many :custom_fields, :class_name => 'IssueCustomField', :join_table => "#{table_name_prefix}custom_fields_projects#{table_name_suffix}", :association_foreign_key => 'custom_field_id'
   acts_as_tree :order => "name", :counter_cache => true
-  
+
+  acts_as_searchable :columns => ['name', 'description'], :project_key => 'id'
+  acts_as_event :title => Proc.new {|o| "#{l(:label_project)}: #{o.name}"},
+                :url => Proc.new {|o| {:controller => 'projects', :action => 'show', :id => o.id}}
+
   attr_protected :status, :enabled_module_names
   
   validates_presence_of :name, :description, :identifier

app/models/wiki_page.rb

@@ -21,7 +21,16 @@ class WikiPage < ActiveRecord::Base
   belongs_to :wiki
   has_one :content, :class_name => 'WikiContent', :foreign_key => 'page_id', :dependent => :destroy
   has_many :attachments, :as => :container, :dependent => :destroy
-  
+
+  acts_as_event :title => Proc.new {|o| "#{l(:label_wiki)}: #{o.title}"},
+                :description => :text,
+                :datetime => :created_on,
+                :url => Proc.new {|o| {:controller => 'wiki', :id => o.wiki.project_id, :page => o.title}}
+
+  acts_as_searchable :columns => ['title', 'text'],
+                     :include => [:wiki, :content],
+                     :project_key => "#{Wiki.table_name}.project_id"
+
   attr_accessor :redirect_existing_links
   
   validates_presence_of :title
@@ -85,6 +94,10 @@ class WikiPage < ActiveRecord::Base
   def project
     wiki.project
   end
+  
+  def text
+    content.text if content
+  end
 end
 
 class WikiDiff

app/views/search/index.rhtml

@@ -15,39 +15,27 @@
 </div>
 
 <% if @results %>
-    <h3><%= lwr(:label_result, @results.length) %></h3>
+    <h3><%= l(:label_result_plural) %></h3>
     <ul>
       <% @results.each do |e| %>
-        <li><p>
-        <% if e.is_a? Project %>
-            <%= link_to highlight_tokens(h(e.name), @tokens), :controller => 'projects', :action => 'show', :id => e %><br />
-            <%= highlight_tokens(e.description, @tokens) %>
-        <% elsif e.is_a? Issue %>
-            <%= link_to_issue e %>: <%= highlight_tokens(h(e.subject), @tokens) %><br />
-            <%= highlight_tokens(e.description, @tokens) %><br />
-            <i><%= e.author.name %>, <%= format_time(e.created_on) %></i>
-        <% elsif e.is_a? News %>
-            <%=l(:label_news)%>: <%= link_to highlight_tokens(h(e.title), @tokens), :controller => 'news', :action => 'show', :id => e %><br />
-            <%= highlight_tokens(e.description, @tokens) %><br />
-            <i><%= e.author.name %>, <%= format_time(e.created_on) %></i>
-        <% elsif e.is_a? Document %>
-            <%=l(:label_document)%>: <%= link_to highlight_tokens(h(e.title), @tokens), :controller => 'documents', :action => 'show', :id => e %><br />
-            <%= highlight_tokens(e.description, @tokens) %><br />
-            <i><%= format_time(e.created_on) %></i>
-        <% elsif e.is_a? WikiPage %>
-            <%=l(:label_wiki)%>: <%= link_to highlight_tokens(h(e.pretty_title), @tokens), :controller => 'wiki', :action => 'index', :id => @project, :page => e.title %><br />
-            <%= highlight_tokens(e.content.text, @tokens) %><br />
-            <i><%= e.content.author ? e.content.author.name : "Anonymous" %>, <%= format_time(e.content.updated_on) %></i>
-        <% elsif e.is_a? Changeset %>
-            <%=l(:label_revision)%> <%= link_to h(e.revision), :controller => 'repositories', :action => 'revision', :id => @project, :rev => e.revision %><br />
-            <%= highlight_tokens(e.comments, @tokens) %><br />
-            <em><%= e.committer.blank? ? e.committer : "Anonymous" %>, <%= format_time(e.committed_on) %></em>
-        <% elsif e.is_a? Message %>
-            <%=h e.board.name %>: <%= link_to_message e %><br />
-            <%= highlight_tokens(e.content, @tokens) %><br />
-            <em><%= e.author ? e.author.name : "Anonymous" %>, <%= format_time(e.created_on) %></em>
-        <% end %>
-        </p></li>  
+        <li><p><%= link_to highlight_tokens(truncate(e.event_title, 255), @tokens), e.event_url %><br />
+        <%= highlight_tokens(e.event_description, @tokens) %><br />
+        <span class="author"><%= format_time(e.event_datetime) %></span></p></li>
       <% end %>
     </ul>
 <% end %>
+
+<p><center>
+<% if @pagination_previous_date %>
+<%= link_to_remote ('&#171; ' + l(:label_previous)),
+                   {:update => :content,
+                    :url => params.merge(:previous => 1, :offset => @pagination_previous_date.strftime("%Y%m%d%H%M%S"))
+                   }, :href => url_for(params.merge(:previous => 1, :offset => @pagination_previous_date.strftime("%Y%m%d%H%M%S"))) %>&nbsp;
+<% end %>
+<% if @pagination_next_date %>
+<%= link_to_remote (l(:label_next) + ' &#187;'),
+                   {:update => :content,
+                    :url => params.merge(:previous => nil, :offset => @pagination_next_date.strftime("%Y%m%d%H%M%S"))
+                   }, :href => url_for(params.merge(:previous => nil, :offset => @pagination_next_date.strftime("%Y%m%d%H%M%S"))) %>
+<% end %>
+</center></p>