super_p && web

Love Ruby.

[superp-blog]

How to unfollow twitter folowers

My twitter was hacked and my account followed ~700 faked users.

Remove by one user is very long, and I write one line script in browser console (Chrome -> Inspect element -> Console):

$('.following.not-muting.including .button-text.unfollow-text').trigger('click');

This issue remove it all by one click.

[superp-blog]

Get facebook user registration date

If you need to get facebook registration date, you can get the first post created date.

But, Facebook api graph don't return timeline posts with sorted by asc or desc. And it is very sadly.

We can return registration year by simple algorithm:

In cycle of years array check if exists any post before current year by fql query.

SELECT created_time FROM stream WHERE source_id = me() AND created_time < {date} limit 1

If you use ruby, you can use my lib for this - https://github.com/galetahub/social_profile

[superp-blog]

HTML5 File uploader for rails

This gem use https://github.com/blueimp/jQuery-File-Upload for upload files.

Preview:

Install

In Gemfile:

gem "rails-uploader"

In routes:

mount Uploader::Engine => '/uploader'

Usage

Architecture to store uploaded files (cancan integration):

class Asset < ActiveRecord::Base include Uploader::Asset def uploader_create(params, request = nil) ability = Ability.new(request.env['warden'].user) if ability.can? :create, self self.user = request.env['warden'].user super else errors.add(:id, :access_denied) end end def uploader_destroy(params, request = nil) ability = Ability.new(request.env['warden'].user) if ability.can? :delete, self super else errors.add(:id, :access_denied) end end end class Picture < Asset mount_uploader :data, PictureUploader validates_integrity_of :data validates_filesize_of :data, :maximum => 2.megabytes.to_i end

For example user has one picture:

class User < ActiveRecord::Base has_one :picture, :as => :assetable, :dependent => :destroy fileuploads :picture end

Find asset by foreign key or guid:

@user.fileupload_asset(:picture)

Include assets

Javascripts:

//= require uploader/application

Stylesheets:

*= require uploader/application

Views

<%= uploader_field_tag :article, :photo %>

or FormBuilder:

<%= form.uploader_field :photo %>

Formtastic

<%= f.input :picture, :as => :uploader %>

SimpleForm

<%= f.input :picture, :as => :uploader %>

View on github

[superp-blog]

Add facebook app to page tab

When Facebook remove the own apps page, he also kill easy opportunity to add this app to your facebook page tab.

Now, you can do it easy with this magick url:

https://www.facebook.com/dialog/pagetab?app_id=[APP_ID]&display=popup&next=https://[URL_TO_YOUR_APP_ON_YOUR_SERVER]

[superp-blog]

This gem provide the easy way to send and check a single sms with startmobile.com.ua service.

Install

gem 'startmobile_sms'

Configure

StartmobileSms.setup do |config| config.login = 'login' config.password = 'password' config.out_number = 'out_number' end

Usage

# Send single sms (out_number is optional) sms_id = StartmobileSms.send(:phone => '30971234567', :text => 'Hello!', :out_number => 'service_name') # Check sms delivery status StartmobileSms.check(sms_id) # Or use instance object sms = StartmobileSms::Message.new(:phone => '30971234567', :text => 'Hello!') sms.phone # [phone] sms.text # Hello! sms.send # send sms to server sms.id # response id sms.status # check sms status (Accepted, Enroute, Delivered, Expired, Deleted, Undeliverable, Rejected

[superp-blog]

Friendly_id. Don't change slug on update

If you don't want to regenerate you slug when model change friendly_id field, use this hook:

# config/initializers/add_static_to_friendly_id.rb module FriendlyId module Static def should_generate_new_friendly_id? new_record? end end end # your model class MyModel < ActiveRecord::Base extend FriendlyId friendly_id :something, :use => [:slugged, :static] end

[superp-blog]

Select album photos likes from Facebook by FQL query

I have Facebook contest album with many photos. And I need to display rating of this photos by user likes.

This FQL query get a list of all likes (user_ids) by all photos:

SELECT user_id, object_id FROM like WHERE object_id IN (SELECT object_id FROM photo WHERE aid='139307129471375_51887' limit 5000) limit 100000

Then you can order results by object_id and sort by object_id count. 

NOTE! Album ID ('139307129471375_51887') - is not facebook graph object id. 139307129471375 - is page id, 51887 - element id for this page.

For my example I use Ruby and fb_graph gem:

query = FbGraph::Query.new("SELECT user_id, object_id FROM like WHERE object_id IN (SELECT object_id FROM photo WHERE aid='139307129471375_51887' limit 5000) limit 100000 ").fetch(SiteConfig.fb_token)

SiteConfig.fb_token - is my facebook app access_token with permissions user_photos (get it easy by using Graph API Explorer)

Then I order and sort my array:

photos = query.inject(Hash.new(0)){ |h, e| h[e["object_id"]] += 1 ; h }.sort{|a,b| b[1]<=>a[1]}

photos.each {|p| puts "Object id - #{p[0]}, likes count - #{p[1]}"}

[superp-blog]

[superp-blog]

[superp-blog]

After last Unbuntu update my Mysql server lost root password. This link save few hours of my day))

[superp-blog]

Group_by example in MongoMapper

This is simple way to make a request on a column grouping in MongoMapper like as GROUP_BY in SQL:

[superp-blog]

[superp-blog]

Cyrillic length problem

Ruby 1.8.7 (Ruby Enterprise Edition):

"string".length # => 6

"строка".length # => 12

Solution:

"string".split(//).size # => 6

"строка".split(//).size # => 6

[superp-blog]

Publish stream in Facebook & Twitter with OmniAuth

First of all, include OmniAuth to your rails app by this railscast or this.

Then add to Gemfile this gem:

gem 'fb_graph', '1.5.4'

After, you should turn on permission in your apps:

for Facebook:

for Twitter:

When your login from OmniAuth, social app ask your permission on update wall in Facebook and post tweet in Twitter.

Paste to you authentication model (my model named Person):

Publish message:

@person.publish("Hello, my Facebook or Twitter friends!")

[superp-blog]

Overwrite Devise user update with current_password

If you don't need to check current_password when user is updating itself, then you can overwrite standart Devise method update_with_password:

[superp-blog]

User Friendships && High Score Table

[superp-blog]

OmniAuth - Twitter: OAuth::Unauthorized (401 Unauthorized)

Такое случается, когда в twitter app выбираем тип приложения Browser, но, при этом, не указываем Callback URL.

Свитер автоматом меняет тип приложения на Client, когда поле урла колбека пустое.

Так что Callback URL - обязательное поле.