improved search engine

* it's now possible to search for multiple words ("all words" or "one of the words" options)
* added a fixed limit for result count

git-svn-id: http://redmine.rubyforge.org/svn/trunk@321 e93f8b46-1217-0410-a6f0-8f06a7374b81
This commit is contained in:
Jean-Philippe Lang 2007-03-10 13:32:04 +00:00
parent 7a20a4d32b
commit 8b98ceb92c
9 changed files with 40 additions and 20 deletions

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@ -540,16 +540,24 @@ class ProjectsController < ApplicationController
end
def search
@token = params[:token]
@question = params[:q] || ""
@question.strip!
@all_words = params[:all_words] || (params[:submit] ? false : true)
@scope = params[:scope] || (params[:submit] ? [] : %w(issues news documents) )
if @token and @token.length > 2
@token.strip!
like_token = "%#{@token}%"
if !@question.empty?
# tokens must be at least 3 character long
@tokens = @question.split.uniq.select {|w| w.length > 2 }
# no more than 5 tokens to search for
@tokens.slice! 5..-1 if @tokens.size > 5
# strings used in sql like statement
like_tokens = @tokens.collect {|w| "%#{w}%"}
operator = @all_words ? " AND " : " OR "
limit = 10
@results = []
@results += @project.issues.find(:all, :include => :author, :conditions => ["issues.subject like ? or issues.description like ?", like_token, like_token] ) if @scope.include? 'issues'
@results += @project.news.find(:all, :conditions => ["news.title like ? or news.description like ?", like_token, like_token], :include => :author ) if @scope.include? 'news'
@results += @project.documents.find(:all, :conditions => ["title like ? or description like ?", like_token, like_token] ) if @scope.include? 'documents'
@results += @project.issues.find(:all, :limit => limit, :include => :author, :conditions => [ (["(LOWER(issues.subject) like ? OR LOWER(issues.description) like ?)"] * like_tokens.size).join(operator), * (like_tokens * 2).sort] ) if @scope.include? 'issues'
@results += @project.news.find(:all, :limit => limit, :conditions => [ (["(LOWER(news.title) like ? OR LOWER(news.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'
@question = @tokens.join(" ")
end
end

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@ -16,8 +16,14 @@
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
module ProjectsHelper
def result_overview(text, token)
match = excerpt(text, token)
match ? highlight(match, token) : truncate(text, 150)
def highlight_tokens(text, tokens)
return text unless tokens && !tokens.empty?
regexp = Regexp.new "(#{tokens.join('|')})", Regexp::IGNORECASE
result = ''
text.split(regexp).each_with_index do |words, i|
result << (i.even? ? (words.length > 100 ? "#{words[0..44]} ... #{words[-45..-1]}" : words) : content_tag('span', words, :class => 'highlight'))
end
result
end
end

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@ -2,10 +2,11 @@
<div class="box">
<% form_tag({:action => 'search', :id => @project}, :method => :get) do %>
<p><%= text_field_tag 'token', @token, :size => 30 %>
<p><%= text_field_tag 'q', @question, :size => 30 %>
<%= check_box_tag 'scope[]', 'issues', (@scope.include? 'issues') %> <label><%= l(:label_issue_plural) %></label>
<%= check_box_tag 'scope[]', 'news', (@scope.include? 'news') %> <label><%= l(:label_news_plural) %></label>
<%= check_box_tag 'scope[]', 'documents', (@scope.include? 'documents') %> <label><%= l(:label_document_plural) %></label></p>
<%= check_box_tag 'scope[]', 'documents', (@scope.include? 'documents') %> <label><%= l(:label_document_plural) %></label><br />
<%= check_box_tag 'all_words', 1, @all_words %> <%= l(:label_all_words) %></p>
<%= submit_tag l(:button_submit), :name => 'submit' %>
<% end %>
</div>
@ -16,16 +17,16 @@
<% @results.each do |e| %>
<li><p>
<% if e.is_a? Issue %>
<%= link_to "#{e.tracker.name} ##{e.id}", :controller => 'issues', :action => 'show', :id => e %>: <%= highlight(h(e.subject), @token) %><br />
<%= result_overview(e.description, @token) %><br />
<%= link_to "#{e.tracker.name} ##{e.id}", :controller => 'issues', :action => 'show', :id => 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(h(e.title), @token), :controller => 'news', :action => 'show', :id => e %><br />
<%= result_overview(e.description, @token) %><br />
<%=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(h(e.title), @token), :controller => 'documents', :action => 'show', :id => e %><br />
<%= result_overview(e.description, @token) %><br />
<%=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>
<% end %>
</p></li>

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@ -321,6 +321,7 @@ label_roadmap: Roadmap
label_search: Suche
label_result: %d Resultat
label_result_plural: %d Resultate
label_all_words: Alle Wörter
button_login: Einloggen
button_submit: Einreichen

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@ -321,6 +321,7 @@ label_roadmap: Roadmap
label_search: Search
label_result: %d result
label_result_plural: %d results
label_all_words: All words
button_login: Login
button_submit: Submit

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@ -321,6 +321,7 @@ label_roadmap: Roadmap
label_search: Búsqueda
label_result: %d resultado
label_result_plural: %d resultados
label_all_words: Todas las palabras
button_login: Conexión
button_submit: Someter

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@ -321,6 +321,7 @@ label_roadmap: Roadmap
label_search: Recherche
label_result: %d résultat
label_result_plural: %d résultats
label_all_words: Tous les mots
button_login: Connexion
button_submit: Soumettre

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@ -322,6 +322,7 @@ label_roadmap: ロードマップ
label_search: 検索
label_result: %d 件の結果
label_result_plural: %d 件の結果
label_all_words: すべての単語
button_login: ログイン
button_submit: 変更

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@ -243,7 +243,7 @@ legend {color: #505050;}
hr { border:0; border-top: dotted 1px #fff; border-bottom: dotted 1px #c0c0c0; }
table p {margin:0; padding:0;}
strong.highlight { background-color: #FCFD8D;}
.highlight { background-color: #FCFD8D;}
div.square {
border: 1px solid #999;