elvisgiv / frontend.md

Last active November 10, 2016 13:27

выпадающий текст после нажатия на линк

in some_viwe_file.html.haml

.home-services
  %a{"data-toggle-selector" => "#me", :href => "#"}
    some link name

  #me{class: "cont"}
    %p
      Some text

elvisgiv / elastic_examples.md

Last active November 1, 2016 16:05

Поиск слова по одной букве при помощи `match_phrase_prefix`

https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-match-query.html#query-dsl-match-query-phrase-prefix

module LibraryApplicationElasticsearchSearchable
  extend ActiveSupport::Concern

  included do
    include Elasticsearch::Model
    include Elasticsearch::Model::Callbacks

elvisgiv / flume_install_ubuntu.md

Last active November 29, 2016 08:21

Install flume on ubuntu

http://hadooptutorial.info/apache-flume-installation/

###Step 1 : Загружаем bin файл флюма http://flume.apache.org/download.html ###Step 2 : поочередно выполняем нижеприведенные строки кода: $ sudo mkdir /usr/lib/flume $ sudo chmod -R 777 /usr/lib/flume

elvisgiv / Kafka.md

Last active July 13, 2016 13:14

#Kafka for Ruby http://teamcoding.com/blog/2015/10/05/kafka/

Kafka is “publish-subscribe messaging rethought as a distributed commit log”.

We are exploring Kafka for doing something which looks like Event Sourcing from Domain Driven Design.

Kafka’s performance is pretty much constant with respect to data size so retaining events forever should not present a problem.

#Install Kafka

elvisgiv / count.md

Created June 28, 2016 15:08

#Задача - показать количество продуктов в списке категорий ##Controllers

nodes_controller.rb

def index
    @items = Node.includes(:cluster => [:team]).by_filter(@filter)

    # for count
 node_ids = Node.pluck(:id)

elvisgiv / FEK.md

Created June 8, 2016 11:49

Fluentd + Elastcsearch + Kibana

VSE PO PORYADKU

MAIN MACHINE

install elasticsearch

(from: http://itc-life.ru/fluentd-bystryj-poisk-logov-s-elasticsearch-kibana-and-fluentd/)

$ `sudo wget https://download.elastic.co/elasticsearch/release/org/elasticsearch/distribution/deb/elasticsearch/2.3.1/elasticsearch-2.3.1.deb`
$ `sudo dpkg -i elasticsearch-2.3.1.deb`

elvisgiv / ubuntu_root.md

Created May 24, 2016 12:24

Поменять пароль `root`-юзера, когда известен пароль пользователя `sudo`(например `blablabla`)

открываем терминал и пишем sudo su -:

elvis@elvis:~$ sudo su -
[sudo] password for elvis: blablabla
root@elvis:~#

для того, чтобы поменять забытый пароль на root вводим passwd root:

root@elvis:~# passwd root

elvisgiv / toggle.md

Created May 23, 2016 11:45

Задача: сделать появляющееся что-то с помощью `javascript`

%ul#list
  %li
    %a.togglelink{:href => "#"} America
    .toggle{:style => "display: block;"}
      %p America - USA - the States
  %li
    %a.togglelink{:href => "#"} Brazil
 .toggle{:style =&gt; "display: block;"}

elvisgiv / install_kibana.md

Last active May 23, 2016 12:50

#Install kibana ##Development Environment https://www.elastic.co/guide/en/kibana/current/setup.html

To get Kibana up and running:

Dwnload the Kibana 4 binary package for your platform. From https://www.elastic.co/downloads/kibana
Extract the .zip or tar.gz archive file.
Run Kibana from the install directory: bin/kibana (Linux/MacOSX) or bin\kibana.bat (Windows).

Для того, чтобы kibana увидела index_name из elasticsearch нужно сделать mappings dynamic: 'true' и поставить :type => 'date' для :created_at

elvisgiv / layout.md

Last active May 11, 2016 10:04

#Custom layout ##Controller

../app/controllers/search_controller.rb

class SearchController < ApplicationController

  layout "blank"

 def index

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