search_helper.rb 2.74 KB
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# encoding: utf-8
#
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# Redmine - project management software
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# Copyright (C) 2006-2017  Jean-Philippe Lang
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#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

module SearchHelper
  def highlight_tokens(text, tokens)
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    return text unless text && tokens && !tokens.empty?
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    re_tokens = tokens.collect {|t| Regexp.escape(t)}
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    regexp = Regexp.new "(#{re_tokens.join('|')})", Regexp::IGNORECASE
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    result = ''
    text.split(regexp).each_with_index do |words, i|
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      if result.length > 1200
        # maximum length of the preview reached
        result << '...'
        break
      end
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      if i.even?
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        result << h(words.length > 100 ? "#{words.slice(0..44)} ... #{words.slice(-45..-1)}" : words)
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      else
        t = (tokens.index(words.downcase) || 0) % 4
        result << content_tag('span', h(words), :class => "highlight token-#{t}")
      end
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    end
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    result.html_safe
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  end
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  def type_label(t)
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    l("label_#{t.singularize}_plural", :default => t.to_s.humanize)
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  end
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  def project_select_tag
    options = [[l(:label_project_all), 'all']]
    options << [l(:label_my_projects), 'my_projects'] unless User.current.memberships.empty?
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    options << [l(:label_and_its_subprojects, @project.name), 'subprojects'] unless @project.nil? || @project.descendants.active.empty?
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    options << [@project.name, ''] unless @project.nil?
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    label_tag("scope", l(:description_project_scope), :class => "hidden-for-sighted") +
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    select_tag('scope', options_for_select(options, params[:scope].to_s)) if options.size > 1
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  end
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  def render_results_by_type(results_by_type)
    links = []
    # Sorts types by results count
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    results_by_type.keys.sort_by {|k| results_by_type[k]}.reverse_each do |t|
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      c = results_by_type[t]
      next if c == 0
      text = "#{type_label(t)} (#{c})"
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      links << link_to(h(text), :q => params[:q], :titles_only => params[:titles_only],
                       :all_words => params[:all_words], :scope => params[:scope], t => 1)
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    end
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    ('<ul>'.html_safe +
        links.map {|link| content_tag('li', link)}.join(' ').html_safe + 
        '</ul>'.html_safe) unless links.empty?
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  end
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end