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body, div, h1, h2, h3, h4, h5, h6, p, ul, ol, li, dl, dt, dd, img, form, fieldset, input, textarea, blockquote {
	margin: 0; padding: 0; border: 0;
}

body {
	margin: 200px;
	font-family: Helvetica;
	background: white;
}

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The Pinterest Graph

This GraphGist is inspired by the blog Building a follower model from scratch, kudos to the Pinterest Engineers!

The model

The basic model is just users following users, something like the following.

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from redis import Redis
import simplejson

class Resque(object):
    """Dirt simple Resque client in Python. Can be used to create jobs."""
    redis_server = 'localhost:6379'

    def __init__(self):
        host, port = self.redis_server.split(':')
        self.redis = Redis(host=host, port=int(port))

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MATCH (n1:node { n.id = "1234" })
MATCH (n0)-[r1]->(n1)-[r2]->(n2)
DELETE r1, n1, r2
MERGE (n0)-[:NEXT]->(n2)

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The Zen of Cypher

• Write functions() in lower case, KEYWORDS in upper.
• START each keyword clause
  ON a new line.
• Use either camelCase or snake_case for node identifiers but be consistent.
• Relationship type names should use UPPER_CASE_AND_UNDERSCORES.
• Label names should use CamelCaseWithInitialCaps.
• MATCH (clauses)-->(should)-->(always)-->(use)-->(parentheses)-->(around)-->(nodes)
• Backticks `cân éscape odd-ch@racter$ & keyw0rd$` but should be a code smell.

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= C Graph
:neo4j-version: 2.0.0-RC1
'''

//setup
//hide
== Initial Data Setup

//person1 WORKED_AT company1
//person1 WORKED_AT company2

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BEARER='...'
def load_tweets(query,since_id=nil,lang="en",page=1,rpp=100)
  res=RestClient.get('https://api.twitter.com/1.1/search/tweets.json',
   {:params=> {:q=>query, :lang=>lang,:count=>rpp,:result_type=>:recent,:since_id=>since_id},
    :accept=>:json,
    :Authorization => "Bearer #{BEARER}"})
  puts "query '#{query}'\n since id #{since_id} result #{res.code}"
  return [] unless res.code==200

  data=JSON.parse(res.to_str)

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Neo4j cypher for co-favorited plus additional attribute

Answering an Stackoverflow Question.

I am learning Neo4j and decided to take one of the sample queries and add a twist to it. I took this example http://docs.neo4j.org/chunked/stable/cypher-cookbook-co-favorited-places.html and wanted to say what if there was an additional attribute that you could use to filter the results by. My test I put together was to have tags in the graph as well and then I wanted to search by overlapped favorites desc then by overlapping tags desc.

Here is the sample data I am using:

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<link rel="import" href="../components/polymer/polymer.html">

<polymer-element name="my-element">

  <template>
    
  </template>

  <script>

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<link rel="import" href="../components/polymer/polymer.html">

<polymer-element name="my-element">

  <template>
    <style>    
      :host {
        position: absolute;
        width: 100%;
        height: 100%;