DZone Snippets: Bublik's Code Snippets

rake task for restart rails application runed on mod_rails

bublik (Voloshin Ruslan) — Tue, 27 May 2008 12:26:32 GMT



amespace :passenger do

  desc "Restart Application"

  task :restart do

    puts `touch tmp/restart.txt`

  end

end

rename view files for rails 2.0

bublik (Voloshin Ruslan) — Thu, 22 May 2008 09:34:12 GMT

save speed improve + 80%

Using view.rhtml on rails 2.0
Completed in 1.41661 (0 reqs/sec) | Rendering: 1.40170 (98%) | DB: 0.00000 (0%) | 200 OK [http://rubyclub.com.ua/]

Using view.html.erb on rails 2.0
Completed in 0.22283 (4 reqs/sec) | Rendering: 0.21387 (95%) | DB: 0.00000 (0%) | 200 OK [http://rubyclub.com.ua/]



namespace 'views' do

  desc 'Renames all .rhtml views to .html.erb, .rjs to .js.rjs, .rxml to .xml.builder, and .haml to .html.haml'

  task 'rename' do

    Dir.glob('app/views/**/[^_]*.rhtml').each do |file|

      puts `svn mv #{file} #{file.gsub(/\.rhtml$/, '.html.erb')}`

    end



    Dir.glob('app/views/**/[^_]*.rxml').each do |file|

      puts `svn mv #{file} #{file.gsub(/\.rxml$/, '.xml.builder')}`

    end



    Dir.glob('app/views/**/[^_]*.rjs').each do |file|

      puts `svn mv #{file} #{file.gsub(/\.rjs$/, '.js.rjs')}`

    end

    Dir.glob('app/views/**/[^_]*.haml').each do |file|

      puts `svn mv #{file} #{file.gsub(/\.haml$/, '.html.haml')}`

    end

  end

end

create new rails rake task

bublik (Voloshin Ruslan) — Thu, 28 Feb 2008 15:02:33 GMT

Create new task for /unit/helpers/*_test.rb

Rakefile



namespace :test do

  Rake::TestTask.new(:helpers) do |t|

    t.libs << "test"

    t.pattern = 'test/unit/helper/*_test.rb'

    t.verbose = true

  end



  Rake::Task['test:helpers'].invoke

end

Save db data to fixture files

bublik (Voloshin Ruslan) — Fri, 02 Nov 2007 09:30:18 GMT

rake db:fixtures:dump_all
он сохранит все данные из ваших таблиц development базы в ямлы для тестов rake

db:fixtures:dump_references
["areas","countries"]
сохранит только те таблицы которы епрописаны у него в конфиге, в данном случае это



namespace :db do

  namespace :fixtures do



    desc 'Create YAML test fixtures from data in an existing database.

Defaults to development database. Set RAILS_ENV to override.'

    task :dump_all => :environment do

      sql = "SELECT * FROM %s"

      skip_tables = ["schema_info"]

      ActiveRecord::Base.establish_connection(:development)

      (ActiveRecord::Base.connection.tables - skip_tables).each do |table_name|

        i = "000"

        File.open("#{RAILS_ROOT}/test/fixtures/#{table_name}.yml", 'w') do |file|

          data = ActiveRecord::Base.connection.select_all(sql % table_name)

          file.write data.inject({}) { |hash, record|

            hash["#{table_name}_#{i.succ!}"] = record

            hash

          }.to_yaml

        end

      end

    end

  end

  

  namespace :fixtures do

    desc 'Create YAML test fixtures for references. Defaults to development database. 

    Set RAILS_ENV to override.'

    task :dump_references => :environment do

      sql = "SELECT * FROM %s"

      dump_tables = ["areas","countries"]

      ActiveRecord::Base.establish_connection(:development)

      dump_tables.each do |table_name|

        i = "000"

        file_name = "#{RAILS_ROOT}/test/fixtures/#{table_name}.yml"

        p "Fixture save for table #{table_name} to #{file_name}"

        File.open(file_name, 'w') do |file|

          data = ActiveRecord::Base.connection.select_all(sql % table_name)

          file.write data.inject({}) { |hash, record|

            hash["#{table_name}_#{i.succ!}"] = record

            hash

          }.to_yaml

        end

      end

    end

  end

end

Customize error_messages_for

bublik (Voloshin Ruslan) — Mon, 29 Oct 2007 08:45:56 GMT

// description of your code here



 module ActionView::Helpers::ActiveRecordHelper

   def error_messages_for(object_name, options = {})

    options = options.symbolize_keys

    object = instance_variable_get("@#{object_name}")

    if object && !object.errors.empty?

      content_tag("div",

      content_tag(

      options[:header_tag] || "h2",

      "Возникло #{object.errors.count} ошибок при сохранении"

      ) +

      content_tag("p", "Проблеммы возникли для следующих полей:") +

      content_tag("dl", object.errors.full_messages.collect { |msg| content_tag("dt", msg) }),

      "id" => options[:id] || "errorExplanation", "class" => options[:class] || "errorExplanation"

      )

    else

      ""

    end

  end

 end

clear directory with svn files

bublik (Voloshin Ruslan) — Tue, 14 Aug 2007 14:50:21 GMT

// description of your code here
It command line clear svn directory



find d . -name .svn -exec rm -rf '{}' \; -print

Check email in html form

bublik (Voloshin Ruslan) — Thu, 12 Jul 2007 10:04:11 GMT

// description of your code here

Convert mail to image (guard mail) from spam

bublik (Voloshin Ruslan) — Tue, 10 Jul 2007 08:11:15 GMT

// description of your code here





if(empty($_GET['sid'])){

	//write html for image

	$mail='example@domain.com';

    $text=base64_encode(serialize($mail));

	echo '
';

}else{

	//show coded mail image

	$text=$_GET['sid'];

	header("Content-type: image/gif");	

	echo mail_to_image($text);

}



function mail_to_image($ctext='no mail'){

	$text=unserialize(base64_decode($ctext));

    $size=strlen($text)*8;

    $im = @imagecreate($size, 20) or die("Cannot Initialize new GD image stream");

    $background_color = imagecolorallocate($im, 255, 255, 255);

    $text_color = imagecolorallocate($im, 0, 0, 0);

    imagestring($im,3, 5, 5,  $text , $text_color);

    return imagegif($im);

}

?>

Pinging site

bublik (Voloshin Ruslan) — Tue, 26 Jun 2007 14:17:40 GMT

Вот простой пример как пропинговывать сайты при новых постах без включения допоплнительных плагинов и модулей



irb(main):032:0>

irb(main):033:0* server = XMLRPC::Client.new("blogsearch.google.com", "/ping/RPC2", 80)

=> #, @proxy_host=nil, @http_last_response=nil, @parser=nil, @timeout=30, @path="/ping/RPC2", @password=nil, @http_header_extra=nil, @use_ssl=false, @host="blogsearch.google.com", @user=nil, @proxy_port=nil, @auth=nil, @cookie=nil>

irb(main):034:0> server.call("weblogUpdates.extendedPing", 'Rubyclub.com.ua new on site','http://rubyclub.com.ua/', 'http://rubyclub.com.ua/messages/rss')

=> {"message"=>"Thanks for the ping.", "flerror"=>false}