jefferson

/**
 * Fancy ID generator that creates 20-character string identifiers with the following properties:
 *
 * 1. They're based on timestamp so that they sort *after* any existing ids.
 * 2. They contain 72-bits of random data after the timestamp so that IDs won't collide with other clients' IDs.
 * 3. They sort *lexicographically* (so the timestamp is converted to characters that will sort properly).
 * 4. They're monotonically increasing.  Even if you generate more than one in the same timestamp, the
 *    latter ones will sort after the former ones.  We do this by using the previous random bits
 *    but "incrementing" them by 1 (only in the case of a timestamp collision).
 */

jefferson

Download the certificate with:
`wget -O config/rds-combined-ca-bundle.pem http://s3.amazonaws.com/rds-downloads/rds-combined-ca-bundle.pem`
Then connect with:
`postgres://user:password@amazon-host/db_name?sslmode=require&sslrootcert=config/rds-combined-ca-bundle.pem`

References:
http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/CHAP_PostgreSQL.html#PostgreSQL.Concepts.General.SSL
https://github.com/jeremyevans/sequel/issues/897
http://www.postgresql.org/docs/9.3/static/libpq-connect.html#LIBPQ-CONNECT-SSLROOTCERT
http://dba.stackexchange.com/questions/77811/how-to-connect-to-an-amazon-postgresql-database-using-ssl

jefferson

- (UIImage *)compressImage:(UIImage *)image{
    float actualHeight = image.size.height;
    float actualWidth = image.size.width;
    float maxHeight = 600.0;
    float maxWidth = 800.0;
    float imgRatio = actualWidth/actualHeight;
    float maxRatio = maxWidth/maxHeight;
    float compressionQuality = 0.5;//50 percent compression
    
    if (actualHeight > maxHeight || actualWidth > maxWidth) {

jefferson

<%= semantic_form_for @parent do |a| %>

  <%= a.inputs "Family Details" do %>
      <%= a.input :name  %>
      <%= a.input :user %>
      <%= a.input :region %>
  <% end %>

  <%= a.inputs "Children" do %>
    <table>