amitsaxena

  
    def url_for_oauth_code(options = {})
        # for permissions, see http://developers.facebook.com/docs/authentication/permissions
        permissions = options[:permissions]
        scope = permissions ? "&scope=#{permissions.is_a?(Array) ? permissions.join(",") : permissions}" : ""
        display = options.has_key?(:display) ? "&display=#{options[:display]}" : ""

        callback = options[:callback] || @oauth_callback_url
        raise ArgumentError, "url_for_oauth_code must get a callback either from the OAuth object or in the options!" unless callback

amitsaxena

class Link < ActiveRecord::Base
  validate :url_presence
  
  def url_presence
    errors.add(:base, "#{Link.url_label(linktype)} can't be blank.") if url.blank?
  end

  def self.url_label(linktype)
    {"web" => "Web URL", "video" => "Video URL", "audio" => "Audio URL", "ecommerce" => "Shop URL",
      "page" => "Page number", "email" => "Email"}[linktype] || "URL"

amitsaxena

Ruby aws-sdk has poor documentation, and I wasn't able to locate it as well. Below is a function that I have created to check whether a file has read permission or not. Modify it as per your needs:

     def check_if_public_read(object)
        object.acl.grants.each do |grant|
          begin
            if(grant.grantee.uri == "http://acs.amazonaws.com/groups/global/AllUsers")
              return true if ([:read, :full_control].include?(grant.permission.name))
            end
          rescue
          end

amitsaxena

  credentials = YAML.load_file("#{Rails.root}/config/s3.yml")
  @access_key = credentials[Rails.env]["access_key_id"]
  @secret_key = credentials[Rails.env]["secret_access_key"]
  @bucket = credentials[Rails.env]["bucket"]

  AWS.config(
    :access_key_id     => @access_key,
    :secret_access_key => @secret_key
  )
  @s3 = AWS::S3.new

amitsaxena

# To get the created at timestamp
sample_object.id.generation_time

# To do range queries
start = Moped::BSON::ObjectId.from_time(Time.now.beginning_of_day)
finish = Moped::BSON::ObjectId.from_time(Time.now.end_of_day)
MyModel.where(:id => {'$gt' => start, '$lt' => finish}).count

amitsaxena

    <script type="text/javascript">
        var timer;
        var heartbeat;
        var lastInterval;

        function clearTimers() {
            clearTimeout(timer);
            clearTimeout(heartbeat);
        }

amitsaxena

    <script type="text/javascript">
        var timer;

        window.addEventListener("pageshow", function(evt){
            clearTimeout(timer);
        }, false);

        window.addEventListener("pagehide", function(evt){
            clearTimeout(timer);
        }, false);

amitsaxena

# Using aws-sdk gem

@access_key = "access_key"
@secret_key = "secret_access_key"
@bucket = "my_bucket"

AWS.config(
    :access_key_id => @access_key,
    :secret_access_key => @secret_key
)

amitsaxena

<script type="text/javascript">
    var custom = "myapp://custom_url";
    var alt = "http://mywebsite.com/alternate/content";
    var g_intent = "intent://scan/#Intent;scheme=zxing;package=com.google.zxing.client.android;end";
    var timer;
    var heartbeat;
    var iframe_timer;

    function clearTimers() {
        clearTimeout(timer);

amitsaxena

# Loader for infinite time
["|", "/", "-", "\\"].each{|v| STDOUT.write "\r#{v}"; sleep 0.5} while 1

# In case you want to run it for a few seconds (~ 20s in the example below)
10.times{ ["|", "/", "-", "\\"].each{|v| STDOUT.write "\r#{v}"; sleep 0.5} }

# Progress Bar
100.times{STDOUT.write "|"; sleep 0.1}

# Another kind of loading indicator