$LOAD_PATH.unshift File.expand_path('../../../lib/', __FILE__)
require 'sinatra/base'
require 'multi_json'
require 'oj'
require 'hashie/mash'
require 'elasticsearch'
require 'elasticsearch/model'
require 'elasticsearch/persistence'
class Note
attr_reader :attributes
def initialize(attributes={})
@attributes = Hashie::Mash.new(attributes)
__add_date
__extract_tags
__truncate_text
self
end
def method_missing(method_name, *arguments, &block)
attributes.respond_to?(method_name) ? attributes.__send__(method_name, *arguments, &block) : super
end
def respond_to?(method_name, include_private=false)
attributes.respond_to?(method_name) || super
end
def tags; attributes.tags || []; end
def to_hash
@attributes.to_hash
end
def __extract_tags
tags = attributes['text'].scan(/(\[\w+\])/).flatten if attributes['text']
unless tags.nil? || tags.empty?
attributes.update 'tags' => tags.map { |t| t.tr('[]', '') }
attributes['text'].gsub!(/(\[\w+\])/, '').strip!
end
end
def __add_date
attributes['created_at'] ||= Time.now.utc.iso8601
end
def __truncate_text
attributes['text'] = attributes['text'][0...80] + ' (...)' if attributes['text'] && attributes['text'].size > 80
end
end
class NoteRepository
include Elasticsearch::Persistence::Repository
client Elasticsearch::Client.new url: ENV['ELASTICSEARCH_URL'], log: true
index :notes
type :note
mapping do
indexes :text, analyzer: 'snowball'
indexes :tags, analyzer: 'keyword'
indexes :created_at, type: 'date'
end
create_index!
def deserialize(document)
Note.new document['_source'].merge('id' => document['_id'])
end
end unless defined?(NoteRepository)
class Application < Sinatra::Base
enable :logging
enable :inline_templates
enable :method_override
configure :development do
enable :dump_errors
disable :show_exceptions
require 'sinatra/reloader'
register Sinatra::Reloader
end
set :repository, NoteRepository.new
set :per_page, 25
get '/' do
@page = [ params[:p].to_i, 1 ].max
@notes = settings.repository.search \
query: ->(q, t) do
query = if q && !q.empty?
{ match: { text: q } }
else
{ match_all: {} }
end
filter = if t && !t.empty?
{ term: { tags: t } }
end
if filter
{ filtered: { query: query, filter: filter } }
else
query
end
end.(params[:q], params[:t]),
sort: [{created_at: {order: 'desc'}}],
size: settings.per_page,
from: settings.per_page * (@page-1),
aggregations: { tags: { terms: { field: 'tags' } } },
highlight: { fields: { text: { fragment_size: 0, pre_tags: ['<em class="hl">'],post_tags: ['</em>'] } } }
erb :index
end
post '/' do
unless params[:text].empty?
@note = Note.new params
settings.repository.save(@note, refresh: true)
end
redirect back
end
delete '/:id' do |id|
settings.repository.delete(id, refresh: true)
redirect back
end
end
Application.run! if $0 == __FILE__
__END__
@@ layout
<!DOCTYPE html>
<html>
<head>
<title>Notes</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<style>
body { color: #222; background: #fff; font: normal 80%/120% 'Helvetica Neue', sans-serif; margin: 4em; position: relative; }
header { color: #666; border-bottom: 2px solid #666; }
header:after { display: table; content: ""; line-height: 0; clear: both; }
#left { width: 20em; float: left }
#main { margin-left: 20em; }
header h1 { font-weight: normal; float: left; padding: 0.4em 0 0 0; margin: 0; }
header form { margin-left: 19.5em; }
header form input { font-size: 120%; width: 40em; border: none; padding: 0.5em; position: relative; bottom: -0.2em; background: transparent; }
header form input:focus { outline-width: 0; }
#left h2 { color: #999; font-size: 160%; font-weight: normal; text-transform: uppercase; letter-spacing: -0.05em; }
#left h2 { border-top: 2px solid #999; width: 9.4em; padding: 0.5em 0 0.5em 0; margin: 0; }
#left textarea { font: normal 140%/140% monospace; border: 1px solid #999; padding: 0.5em; width: 12em; }
#left form p { margin: 0; }
#left a { color: #000; }
#left small.c { color: #333; background: #ccc; text-align: center; min-width: 1.75em; min-height: 1.5em; border-radius: 1em; display: inline-block; padding-top: 0.25em; float: right; margin-right: 6em; }
#left small.i { color: #ccc; background: #333; }
#facets { list-style-type: none; padding: 0; margin: 0 0 1em 0; }
#facets li { padding: 0 0 0.5em 0; }
.note { border-bottom: 1px solid #999; position: relative; padding: 0.5em 0; }
.note p { font-size: 140%; }
.note small { font-size: 70%; color: #999; }
.note small.d { border-left: 1px solid #999; padding-left: 0.5em; margin-left: 0.5em; }
.note em.hl { background: #fcfcad; border-radius: 0.5em; padding: 0.2em 0.4em 0.2em 0.4em; }
.note strong.t { color: #fff; background: #999; font-size: 70%; font-weight: bold; border-radius: 0.6em; padding: 0.2em 0.6em 0.3em 0.7em; }
.note form { position: absolute; bottom: 1.5em; right: 1em; }
.pagination { color: #000; font-weight: bold; text-align: right; }
.pagination:visited { color: #000; }
.pagination a { text-decoration: none; }
.pagination:hover a { text-decoration: underline; }
}
</style>
</head>
<body>
<%= yield %>
</body>
</html>
@@ index
<header>
<h1>Notes</h1>
<form action="/" method='get'>
<input type="text" name="q" value="<%= params[:q] %>" id="q" autofocus="autofocus" placeholder="type a search query and press enter..." />
</form>
</header>
<section id="left">
<p><a href="/">All notes</a> <small class="c i"><%= @notes.size %></small></p>
<ul id="facets">
<% @notes.response.aggregations.tags.buckets.each do |term| %>
<li><a href="/?t=<%= term['key'] %>"><%= term['key'] %></a> <small class="c"><%= term['doc_count'] %></small></li>
<% end %>
</ul>
<h2>Add a note</h2>
<form action="/" method='post'>
<p><textarea name="text" rows="5"></textarea></p>
<p><input type="submit" accesskey="s" value="Save" /></p>
</form>
</section>
<section id="main">
<% if @notes.empty? %>
<p>No notes found.</p>
<% end %>
<% @notes.each_with_hit do |note, hit| %>
<div class="note">
<p>
<%= hit.highlight && hit.highlight.size > 0 ? hit.highlight.text.first : note.text %>
<% note.tags.each do |tag| %> <strong class="t"><%= tag %></strong><% end %>
<small class="d"><%= Time.parse(note.created_at).strftime('%d/%m/%Y %H:%M') %></small>
<form action="/<%= note.id %>" method="post"><input type="hidden" name="_method" value="delete" /><button>Delete</button></form>
</p>
</div>
<% end %>
<% if @notes.size > 0 && @page.next <= @notes.total / settings.per_page %>
<p class="pagination"><a href="?p=<%= @page.next %>">→ Load next</a></p>
<% end %>
</section>