Michiel Kalkman michiel

Quick and Dirty Integration of elasticsearch api with rails

Take the following with a grain of salt ...

We started prototyping with ES & Rails about 2 days ago and I quickly discovered that things became a bit unwieldy the more I utilized elasticsearch. For now I am running with this type of integration with rails 3.2.15 to assess elasticsearch.

While we have done preliminary reviews on how to set up a production environment (still scratching my head on how to handle the split brain bug) , there's certainly plenty of what I'm not aware of, so if you see a fault in this approach, please let me know.

I may update this later on with a couple of convenience methods on the data models ...

JavaScript error logging services

http://www.errorify.com/ - source maps
http://errorception.com/ - translate error messages to English
http://www.exceptionhub.com/
http://jserrlog.appspot.com/
http://www.muscula.com/ - source maps, translate error messages to English
https://www.airbrake.io/ - tracekit, source maps
http://www.errorstack.com/

Frontend Development

Guides
Architecture
- Scalable and Modular Architecture for CSS
BEM

	import os
	import sys


	# constants, configure to match your environment
	HOST = 'http://localhost:9200'
	INDEX = 'test'
	TYPE = 'attachment'
	TMP_FILE_NAME = 'tmp.json'

	#!/bin/sh

	host=localhost:9200

	curl -X DELETE "${host}/test"

	curl -X PUT "${host}/test" -d '{
	"settings" : { "index" : { "number_of_shards" : 1, "number_of_replicas" : 0 }}
	}'

	// underscore addon with sum, mean, median and nrange function
	// see details below

	_.mixin({

	// Return sum of the elements
	sum : function(obj, iterator, context) {
	if (!iterator && _.isEmpty(obj)) return 0;
	var result = 0;
	if (!iterator && _.isArray(obj)){

	// The API accepts the page parameter and returns the pagination info in meta

	{
	"messages": [ ... ],
	"meta": {
	"pagination": {
	"total_pages": 3,
	"current_page": 1,
	"total_count": 55
	}

	# Public: A module to be mixed in another class with common methods to index
	# records in ElasticSearch.
	#
	# The host object needs to respond to 'indexed_attributes', which will return
	# an array of the attributes names to be indexed.
	#
	# It's also recommended to override the 'save?' method to make sure only
	# records that match some specifications are indexed.
	#
	# The type used for the ElasticSearch index will be extracted from the name of

	# to generate your dhparam.pem file, run in the terminal
	openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

	# Use this setup block to configure all options available in SimpleForm.
	SimpleForm.setup do \|config\|
	# you need an updated simple_form gem for this to work, I'm referring to the git repo in my Gemfile
	config.input_class = "form-control"

	config.wrappers :bootstrap, tag: 'div', class: 'form-group', error_class: 'error' do \|b\|
	b.use :html5
	b.use :placeholder
	b.use :label
	b.use :input