Studying Rails (well, Ruby)

I know PHP. Do not just know, but really know. Not only syntax, or idioms and peculiarities, but also why - why something works just the way it works, you know, under the hood. And most likely I somehow took part in the adoption of a decision. All the same, thirteen years with a language is a long time. But I worked not only with PHP.


After two years of working with PHP, I took a little vacation and learned ColdFusion, which spun over the Java EE platform. Actually, that's why I also poked in Java, since ColdFusion can be extended using Java components.

Then, naturally, there was an inevitable immersion in JavaScript, spiced with a decent portion of CSS, semantic Web technologies ( RDF , OWL and SPARQL ), XML, XPath and XSL (XSL: FO and XSLT), and let's not forget about SQL. Hell, I can write (and write) a DTD ( Document Type Definition )!
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Not so long ago, after I started working at EngineYard on the PHP Orchestra platform, I learned Python. (Yes, we use Python for some parts of our PHP stack. Why? Because it is the best tool for solving some problems.)

I didn’t add a bunch of keywords to my resume to make it look cool. I decided so because at the moment, I consider myself a polyglot.

I have always studied new tools (be it demons, utilities, libraries, languages ​​or services) and judged them by several criteria:

• How well is the tool written?
  
• What does he have with security?
  
• How many open bugs are there?
  
• How did the community react to previous problems (were they [members of the community] opened, friendly, polite, prompt)?
  
• Is there enough functionality to solve my problems?
  
• Is the functionality too redundant to solve my problems?
  

In the end, it all comes down to whether this is the right tool for solving the problem?

That is why, when it ultimately comes to writing websites, I choose PHP. Yes, know your tool well, and let it pay off to you a hundredfold!

Then I came to EngineYard and met a bunch of amazing engineers who chose Ruby for themselves.

Even now, after more than a year of working at EngineYard, I’ll learn something about Ruby or Rails. Of course, I read a lot of Ruby code, in the process of code review, or just out of interest, how something was implemented. I even railed Rails a bit, but it was basically copy-paste-a-bit-tweak.

Then Distill arrived, and we needed a website. Approximately 3 weeks to do everything, and without departing from the main tasks and without any specification for the technologies used; in a typical situation, I would choose PHP and, probably, Zend Framework 2 , and would do everything in a couple of days.

Instead, given my discussions about Distill and what we want to achieve (with an eye to solutions, not technology) in the coming months, I decided to grab the opportunity to try Rails (well, Ruby). It was a small project with limited functionality, and I could quickly roll back to PHP if I had encountered too many problems with RoR. Fortunately, surrounded by, literally, dozens of amazing, experienced developers, I could always find someone to whom I could ask questions. But, as you will see later, I didn’t really need help.

Implementation details

The meaning of this article is not how I learned Ruby or Rails, but what I learned from the experience. Although, something about RoR, I would also like to say.

After PHP, I definitely ran into things causing WTF! reaction:

• The brackets are optional when calling the method and are often not used, but in some cases (for example, nested calls) they are needed.
  
• There are a lot of if not options. For example: if !, if not unless .

? ! , , ? . . , , foo.empty? . ! , .. foo.downcase! foo , foo.downcase , .

: .


, - ( Distill, ):

class Speaker < ActiveRecord::Base belongs_to :user has_many :proposals attr_accessible :user, :bio, :email, :name, :id, :website, :photo has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ validates :bio, :email, :name, :photo, :presence => true validates :email, :format => { :with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => "Must be a valid email address" } end
:
1: Speaker , ( < ) Base ( :: ) ActiveRecord .
2, 3, 5, 7, 8, 9, 10: .
15: ( end ).

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!
" ! !"
(, ! ^_^ - . )

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: , - , , EngineYard mkb , ; - : , , , .

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, . , (), . , PHP, , .

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Getting Started with Rails , .

:
OAuth (Github, Facebook Twitter).
S3.

OAuth
, . , Devise Omniauth ; , OAuth, .

, Ruby Rails, , , , , . OAuth, , , , - . , , (, email), .

S3
, Google, Paperclip . Active Record .

Paperclip, Ruby/Rails, : , S3, . , ( S3, ), rake, :

has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/
"photo", (300x300 120x120) , png, gif jpeg.

?
, . Ruby , Python. , , , Rails PHP-.

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, - Engine Yard, , . if !, if not unless .

? ! , , ? . . , , foo.empty? . ! , .. foo.downcase! foo , foo.downcase , .

: .


, - ( Distill, ):

class Speaker < ActiveRecord::Base belongs_to :user has_many :proposals attr_accessible :user, :bio, :email, :name, :id, :website, :photo has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ validates :bio, :email, :name, :photo, :presence => true validates :email, :format => { :with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => "Must be a valid email address" } end
:
1: Speaker , ( < ) Base ( :: ) ActiveRecord .
2, 3, 5, 7, 8, 9, 10: .
15: ( end ).

", , ?"
!
" ! !"
(, ! ^_^ - . )

, , Ruby self , , self:: PHP, ( ). , belongs_to :user self.belongs_to :user . , , (, , ) . (, def self.foo ) ( ) , . .

: , - , , EngineYard mkb , ; - : , , , .

, , , ( validates ), , - , . ( Poetry mode , - - " - !" - . )

?
, . , (), . , PHP, , .

CRUD. , , , . , , - . Ruby/Rails PHP/Zend Framework 2 - , . , ***bash-*** .

Getting Started with Rails , .

:
OAuth (Github, Facebook Twitter).
S3.

OAuth
, . , Devise Omniauth ; , OAuth, .

, Ruby Rails, , , , , . OAuth, , , , - . , , (, email), .

S3
, Google, Paperclip . Active Record .

Paperclip, Ruby/Rails, : , S3, . , ( S3, ), rake, :

has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/
"photo", (300x300 120x120) , png, gif jpeg.

?
, . Ruby , Python. , , , Rails PHP-.

- , Rails , , PHP , - Rails Ruby , - , . , OAuth Zend Framework 2 , , ZF2 /, , , , . , , Rails ( Ruby), . ( , The Ruby Toolbox , , !)

, . PHP Python, Ruby - . PHP -, , - (GET/POST/Cookies, , PUT/POST , , ..) , Distill .

, PHP , , ( Shared nothing architecture ) , , , - Ruby ( , rubinius jruby). , Ruby Python , , , , , . , Engine Yard Cloud ( , ) .

, , ? -, ZF2? . ? - , , Ruby Rails. , OAuth S3 . , ZF2, , , , , , .., , .

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       ?  ! ,   ,    ?     .   .   , , foo.empty? .    !    , .. foo.downcase!  foo ,     foo.downcase   ,         . 
   
     :             . 
   
   
    ,  -   (       Distill,      ): 
   
   class Speaker < ActiveRecord::Base belongs_to :user has_many :proposals attr_accessible :user, :bio, :email, :name, :id, :website, :photo has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ validates :bio, :email, :name, :photo, :presence => true validates :email, :format => { :with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => "Must be a valid email address" } end 
    : 
    1:    Speaker ,   ( < )   Base  ( :: )  ActiveRecord . 
    2, 3, 5, 7, 8, 9, 10:    . 
    15:    ( end ). 
   
   ",  , ?" 
    ! 
   " !       !" 
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          : 
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      S3 
    ,   Google,    Paperclip .   Active Record   . 
   
     Paperclip,         Ruby/Rails,     :     ,         S3,      .  ,   (        S3,    ),   rake,     : 
   
   has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ 
        "photo",    (300x300  120x120)  ,   png, gif  jpeg. 
   
       ? 
   ,      . Ruby     ,       Python.  ,  , ,        Rails   PHP-. 
   
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     ,      .  PHP  Python, Ruby -      .  PHP       -,   ,        - (GET/POST/Cookies,   , PUT/POST  ,  ,  ..)      ,      Distill       . 
   
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  if !, if not unless .

? ! , , ? . . , , foo.empty? . ! , .. foo.downcase! foo , foo.downcase , .

: .


, - ( Distill, ):

class Speaker < ActiveRecord::Base belongs_to :user has_many :proposals attr_accessible :user, :bio, :email, :name, :id, :website, :photo has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ validates :bio, :email, :name, :photo, :presence => true validates :email, :format => { :with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => "Must be a valid email address" } end
:
1: Speaker , ( < ) Base ( :: ) ActiveRecord .
2, 3, 5, 7, 8, 9, 10: .
15: ( end ).

", , ?"
!
" ! !"
(, ! ^_^ - . )

, , Ruby self , , self:: PHP, ( ). , belongs_to :user self.belongs_to :user . , , (, , ) . (, def self.foo ) ( ) , . .

: , - , , EngineYard mkb , ; - : , , , .

, , , ( validates ), , - , . ( Poetry mode , - - " - !" - . )

?
, . , (), . , PHP, , .

CRUD. , , , . , , - . Ruby/Rails PHP/Zend Framework 2 - , . , ***bash-*** .

Getting Started with Rails , .

:
OAuth (Github, Facebook Twitter).
S3.

OAuth
, . , Devise Omniauth ; , OAuth, .

, Ruby Rails, , , , , . OAuth, , , , - . , , (, email), .

S3
, Google, Paperclip . Active Record .

Paperclip, Ruby/Rails, : , S3, . , ( S3, ), rake, :

has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/
"photo", (300x300 120x120) , png, gif jpeg.

?
, . Ruby , Python. , , , Rails PHP-.

- , Rails , , PHP , - Rails Ruby , - , . , OAuth Zend Framework 2 , , ZF2 /, , , , . , , Rails ( Ruby), . ( , The Ruby Toolbox , , !)

, . PHP Python, Ruby - . PHP -, , - (GET/POST/Cookies, , PUT/POST , , ..) , Distill .

, PHP , , ( Shared nothing architecture ) , , , - Ruby ( , rubinius jruby). , Ruby Python , , , , , . , Engine Yard Cloud ( , ) .

, , ? -, ZF2? . ? - , , Ruby Rails. , OAuth S3 . , ZF2, , , , , , .., , .

, Ruby/Rails? . PHP , , , .

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- , , , , , , -... , - ("The PHP Way" "The Ruby Way"); , , , .

- - ; , - , . , , .

, - Engine Yard, , .
  • if !, if not unless .

? ! , , ? . . , , foo.empty? . ! , .. foo.downcase! foo , foo.downcase , .

: .


, - ( Distill, ):

class Speaker < ActiveRecord::Base belongs_to :user has_many :proposals attr_accessible :user, :bio, :email, :name, :id, :website, :photo has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ validates :bio, :email, :name, :photo, :presence => true validates :email, :format => { :with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => "Must be a valid email address" } end
:
1: Speaker , ( < ) Base ( :: ) ActiveRecord .
2, 3, 5, 7, 8, 9, 10: .
15: ( end ).

", , ?"
!
" ! !"
(, ! ^_^ - . )

, , Ruby self , , self:: PHP, ( ). , belongs_to :user self.belongs_to :user . , , (, , ) . (, def self.foo ) ( ) , . .

: , - , , EngineYard mkb , ; - : , , , .

, , , ( validates ), , - , . ( Poetry mode , - - " - !" - . )

?
, . , (), . , PHP, , .

CRUD. , , , . , , - . Ruby/Rails PHP/Zend Framework 2 - , . , ***bash-*** .

Getting Started with Rails , .

:
OAuth (Github, Facebook Twitter).
S3.

OAuth
, . , Devise Omniauth ; , OAuth, .

, Ruby Rails, , , , , . OAuth, , , , - . , , (, email), .

S3
, Google, Paperclip . Active Record .

Paperclip, Ruby/Rails, : , S3, . , ( S3, ), rake, :

has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/
"photo", (300x300 120x120) , png, gif jpeg.

?
, . Ruby , Python. , , , Rails PHP-.

- , Rails , , PHP , - Rails Ruby , - , . , OAuth Zend Framework 2 , , ZF2 /, , , , . , , Rails ( Ruby), . ( , The Ruby Toolbox , , !)

, . PHP Python, Ruby - . PHP -, , - (GET/POST/Cookies, , PUT/POST , , ..) , Distill .

, PHP , , ( Shared nothing architecture ) , , , - Ruby ( , rubinius jruby). , Ruby Python , , , , , . , Engine Yard Cloud ( , ) .

, , ? -, ZF2? . ? - , , Ruby Rails. , OAuth S3 . , ZF2, , , , , , .., , .

, Ruby/Rails? . PHP , , , .

Ruby/Rails ? - , , PHP . , Engine Yard - ! , Ruby/Rails, , . , - , , - , .

- , , , , , , -... , - ("The PHP Way" "The Ruby Way"); , , , .

- - ; , - , . , , .

, - Engine Yard, , .
  • if !, if not unless .

? ! , , ? . . , , foo.empty? . ! , .. foo.downcase! foo , foo.downcase , .

: .


, - ( Distill, ):

class Speaker < ActiveRecord::Base belongs_to :user has_many :proposals attr_accessible :user, :bio, :email, :name, :id, :website, :photo has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ validates :bio, :email, :name, :photo, :presence => true validates :email, :format => { :with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => "Must be a valid email address" } end
:
1: Speaker , ( < ) Base ( :: ) ActiveRecord .
2, 3, 5, 7, 8, 9, 10: .
15: ( end ).

", , ?"
!
" ! !"
(, ! ^_^ - . )

, , Ruby self , , self:: PHP, ( ). , belongs_to :user self.belongs_to :user . , , (, , ) . (, def self.foo ) ( ) , . .

: , - , , EngineYard mkb , ; - : , , , .

, , , ( validates ), , - , . ( Poetry mode , - - " - !" - . )

?
, . , (), . , PHP, , .

CRUD. , , , . , , - . Ruby/Rails PHP/Zend Framework 2 - , . , ***bash-*** .

Getting Started with Rails , .

:
OAuth (Github, Facebook Twitter).
S3.

OAuth
, . , Devise Omniauth ; , OAuth, .

, Ruby Rails, , , , , . OAuth, , , , - . , , (, email), .

S3
, Google, Paperclip . Active Record .

Paperclip, Ruby/Rails, : , S3, . , ( S3, ), rake, :

has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/
"photo", (300x300 120x120) , png, gif jpeg.

?
, . Ruby , Python. , , , Rails PHP-.

- , Rails , , PHP , - Rails Ruby , - , . , OAuth Zend Framework 2 , , ZF2 /, , , , . , , Rails ( Ruby), . ( , The Ruby Toolbox , , !)

, . PHP Python, Ruby - . PHP -, , - (GET/POST/Cookies, , PUT/POST , , ..) , Distill .

, PHP , , ( Shared nothing architecture ) , , , - Ruby ( , rubinius jruby). , Ruby Python , , , , , . , Engine Yard Cloud ( , ) .

, , ? -, ZF2? . ? - , , Ruby Rails. , OAuth S3 . , ZF2, , , , , , .., , .

, Ruby/Rails? . PHP , , , .

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- , , , , , , -... , - ("The PHP Way" "The Ruby Way"); , , , .

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, - Engine Yard, , .
  • if !, if not unless .

? ! , , ? . . , , foo.empty? . ! , .. foo.downcase! foo , foo.downcase , .

: .


, - ( Distill, ):

class Speaker < ActiveRecord::Base belongs_to :user has_many :proposals attr_accessible :user, :bio, :email, :name, :id, :website, :photo has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ validates :bio, :email, :name, :photo, :presence => true validates :email, :format => { :with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => "Must be a valid email address" } end
:
1: Speaker , ( < ) Base ( :: ) ActiveRecord .
2, 3, 5, 7, 8, 9, 10: .
15: ( end ).

", , ?"
!
" ! !"
(, ! ^_^ - . )

, , Ruby self , , self:: PHP, ( ). , belongs_to :user self.belongs_to :user . , , (, , ) . (, def self.foo ) ( ) , . .

: , - , , EngineYard mkb , ; - : , , , .

, , , ( validates ), , - , . ( Poetry mode , - - " - !" - . )

?
, . , (), . , PHP, , .

CRUD. , , , . , , - . Ruby/Rails PHP/Zend Framework 2 - , . , ***bash-*** .

Getting Started with Rails , .

:
OAuth (Github, Facebook Twitter).
S3.

OAuth
, . , Devise Omniauth ; , OAuth, .

, Ruby Rails, , , , , . OAuth, , , , - . , , (, email), .

S3
, Google, Paperclip . Active Record .

Paperclip, Ruby/Rails, : , S3, . , ( S3, ), rake, :

has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/
"photo", (300x300 120x120) , png, gif jpeg.

?
, . Ruby , Python. , , , Rails PHP-.

- , Rails , , PHP , - Rails Ruby , - , . , OAuth Zend Framework 2 , , ZF2 /, , , , . , , Rails ( Ruby), . ( , The Ruby Toolbox , , !)

, . PHP Python, Ruby - . PHP -, , - (GET/POST/Cookies, , PUT/POST , , ..) , Distill .

, PHP , , ( Shared nothing architecture ) , , , - Ruby ( , rubinius jruby). , Ruby Python , , , , , . , Engine Yard Cloud ( , ) .

, , ? -, ZF2? . ? - , , Ruby Rails. , OAuth S3 . , ZF2, , , , , , .., , .

, Ruby/Rails? . PHP , , , .

Ruby/Rails ? - , , PHP . , Engine Yard - ! , Ruby/Rails, , . , - , , - , .

- , , , , , , -... , - ("The PHP Way" "The Ruby Way"); , , , .

- - ; , - , . , , .

, - Engine Yard, , .
  if !, if not unless .

? ! , , ? . . , , foo.empty? . ! , .. foo.downcase! foo , foo.downcase , .

: .


, - ( Distill, ):

class Speaker < ActiveRecord::Base belongs_to :user has_many :proposals attr_accessible :user, :bio, :email, :name, :id, :website, :photo has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ validates :bio, :email, :name, :photo, :presence => true validates :email, :format => { :with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => "Must be a valid email address" } end
:
1: Speaker , ( < ) Base ( :: ) ActiveRecord .
2, 3, 5, 7, 8, 9, 10: .
15: ( end ).

", , ?"
!
" ! !"
(, ! ^_^ - . )

, , Ruby self , , self:: PHP, ( ). , belongs_to :user self.belongs_to :user . , , (, , ) . (, def self.foo ) ( ) , . .

: , - , , EngineYard mkb , ; - : , , , .

, , , ( validates ), , - , . ( Poetry mode , - - " - !" - . )

?
, . , (), . , PHP, , .

CRUD. , , , . , , - . Ruby/Rails PHP/Zend Framework 2 - , . , ***bash-*** .

Getting Started with Rails , .

:
OAuth (Github, Facebook Twitter).
S3.

OAuth
, . , Devise Omniauth ; , OAuth, .

, Ruby Rails, , , , , . OAuth, , , , - . , , (, email), .

S3
, Google, Paperclip . Active Record .

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has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/
"photo", (300x300 120x120) , png, gif jpeg.

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, . Ruby , Python. , , , Rails PHP-.

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class Speaker < ActiveRecord::Base belongs_to :user has_many :proposals attr_accessible :user, :bio, :email, :name, :id, :website, :photo has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ validates :bio, :email, :name, :photo, :presence => true validates :email, :format => { :with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => "Must be a valid email address" } end
:
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2, 3, 5, 7, 8, 9, 10: .
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has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/
"photo", (300x300 120x120) , png, gif jpeg.

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, . Ruby , Python. , , , Rails PHP-.

- , Rails , , PHP , - Rails Ruby , - , . , OAuth Zend Framework 2 , , ZF2 /, , , , . , , Rails ( Ruby), . ( , The Ruby Toolbox , , !)

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, - ( Distill, ):

class Speaker < ActiveRecord::Base belongs_to :user has_many :proposals attr_accessible :user, :bio, :email, :name, :id, :website, :photo has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ validates :bio, :email, :name, :photo, :presence => true validates :email, :format => { :with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => "Must be a valid email address" } end
:
1: Speaker , ( < ) Base ( :: ) ActiveRecord .
2, 3, 5, 7, 8, 9, 10: .
15: ( end ).

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has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/
"photo", (300x300 120x120) , png, gif jpeg.

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, . Ruby , Python. , , , Rails PHP-.

- , Rails , , PHP , - Rails Ruby , - , . , OAuth Zend Framework 2 , , ZF2 /, , , , . , , Rails ( Ruby), . ( , The Ruby Toolbox , , !)

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, - ( Distill, ):

class Speaker < ActiveRecord::Base belongs_to :user has_many :proposals attr_accessible :user, :bio, :email, :name, :id, :website, :photo has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ validates :bio, :email, :name, :photo, :presence => true validates :email, :format => { :with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => "Must be a valid email address" } end
:
1: Speaker , ( < ) Base ( :: ) ActiveRecord .
2, 3, 5, 7, 8, 9, 10: .
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S3.

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, . , Devise Omniauth ; , OAuth, .

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has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/
"photo", (300x300 120x120) , png, gif jpeg.

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, . Ruby , Python. , , , Rails PHP-.

- , Rails , , PHP , - Rails Ruby , - , . , OAuth Zend Framework 2 , , ZF2 /, , , , . , , Rails ( Ruby), . ( , The Ruby Toolbox , , !)

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, - ( Distill, ):

class Speaker < ActiveRecord::Base belongs_to :user has_many :proposals attr_accessible :user, :bio, :email, :name, :id, :website, :photo has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ validates :bio, :email, :name, :photo, :presence => true validates :email, :format => { :with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => "Must be a valid email address" } end
:
1: Speaker , ( < ) Base ( :: ) ActiveRecord .
2, 3, 5, 7, 8, 9, 10: .
15: ( end ).

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(, ! ^_^ - . )

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:
OAuth (Github, Facebook Twitter).
S3.

OAuth
, . , Devise Omniauth ; , OAuth, .

, Ruby Rails, , , , , . OAuth, , , , - . , , (, email), .

S3
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has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/
"photo", (300x300 120x120) , png, gif jpeg.

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, . Ruby , Python. , , , Rails PHP-.

- , Rails , , PHP , - Rails Ruby , - , . , OAuth Zend Framework 2 , , ZF2 /, , , , . , , Rails ( Ruby), . ( , The Ruby Toolbox , , !)

, . PHP Python, Ruby - . PHP -, , - (GET/POST/Cookies, , PUT/POST , , ..) , Distill .

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, - ( Distill, ):

class Speaker < ActiveRecord::Base belongs_to :user has_many :proposals attr_accessible :user, :bio, :email, :name, :id, :website, :photo has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ validates :bio, :email, :name, :photo, :presence => true validates :email, :format => { :with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => "Must be a valid email address" } end
:
1: Speaker , ( < ) Base ( :: ) ActiveRecord .
2, 3, 5, 7, 8, 9, 10: .
15: ( end ).

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:
OAuth (Github, Facebook Twitter).
S3.

OAuth
, . , Devise Omniauth ; , OAuth, .

, Ruby Rails, , , , , . OAuth, , , , - . , , (, email), .

S3
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has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/
"photo", (300x300 120x120) , png, gif jpeg.

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, . Ruby , Python. , , , Rails PHP-.

- , Rails , , PHP , - Rails Ruby , - , . , OAuth Zend Framework 2 , , ZF2 /, , , , . , , Rails ( Ruby), . ( , The Ruby Toolbox , , !)

, . PHP Python, Ruby - . PHP -, , - (GET/POST/Cookies, , PUT/POST , , ..) , Distill .

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, - ( Distill, ):

class Speaker < ActiveRecord::Base belongs_to :user has_many :proposals attr_accessible :user, :bio, :email, :name, :id, :website, :photo has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ validates :bio, :email, :name, :photo, :presence => true validates :email, :format => { :with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => "Must be a valid email address" } end
:
1: Speaker , ( < ) Base ( :: ) ActiveRecord .
2, 3, 5, 7, 8, 9, 10: .
15: ( end ).

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:
OAuth (Github, Facebook Twitter).
S3.

OAuth
, . , Devise Omniauth ; , OAuth, .

, Ruby Rails, , , , , . OAuth, , , , - . , , (, email), .

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, Google, Paperclip . Active Record .

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has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/
"photo", (300x300 120x120) , png, gif jpeg.

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, . Ruby , Python. , , , Rails PHP-.

- , Rails , , PHP , - Rails Ruby , - , . , OAuth Zend Framework 2 , , ZF2 /, , , , . , , Rails ( Ruby), . ( , The Ruby Toolbox , , !)

, . PHP Python, Ruby - . PHP -, , - (GET/POST/Cookies, , PUT/POST , , ..) , Distill .

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, - ( Distill, ):

class Speaker < ActiveRecord::Base belongs_to :user has_many :proposals attr_accessible :user, :bio, :email, :name, :id, :website, :photo has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ validates :bio, :email, :name, :photo, :presence => true validates :email, :format => { :with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => "Must be a valid email address" } end
:
1: Speaker , ( < ) Base ( :: ) ActiveRecord .
2, 3, 5, 7, 8, 9, 10: .
15: ( end ).

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S3.

OAuth
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has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/
"photo", (300x300 120x120) , png, gif jpeg.

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, . Ruby , Python. , , , Rails PHP-.

- , Rails , , PHP , - Rails Ruby , - , . , OAuth Zend Framework 2 , , ZF2 /, , , , . , , Rails ( Ruby), . ( , The Ruby Toolbox , , !)

, . PHP Python, Ruby - . PHP -, , - (GET/POST/Cookies, , PUT/POST , , ..) , Distill .

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, - ( Distill, ):

class Speaker < ActiveRecord::Base belongs_to :user has_many :proposals attr_accessible :user, :bio, :email, :name, :id, :website, :photo has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ validates :bio, :email, :name, :photo, :presence => true validates :email, :format => { :with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => "Must be a valid email address" } end
:
1: Speaker , ( < ) Base ( :: ) ActiveRecord .
2, 3, 5, 7, 8, 9, 10: .
15: ( end ).

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(, ! ^_^ - . )

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:
OAuth (Github, Facebook Twitter).
S3.

OAuth
, . , Devise Omniauth ; , OAuth, .

, Ruby Rails, , , , , . OAuth, , , , - . , , (, email), .

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, Google, Paperclip . Active Record .

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has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/
"photo", (300x300 120x120) , png, gif jpeg.

?
, . Ruby , Python. , , , Rails PHP-.

- , Rails , , PHP , - Rails Ruby , - , . , OAuth Zend Framework 2 , , ZF2 /, , , , . , , Rails ( Ruby), . ( , The Ruby Toolbox , , !)

, . PHP Python, Ruby - . PHP -, , - (GET/POST/Cookies, , PUT/POST , , ..) , Distill .

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, - ( Distill, ):

class Speaker < ActiveRecord::Base belongs_to :user has_many :proposals attr_accessible :user, :bio, :email, :name, :id, :website, :photo has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ validates :bio, :email, :name, :photo, :presence => true validates :email, :format => { :with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => "Must be a valid email address" } end
:
1: Speaker , ( < ) Base ( :: ) ActiveRecord .
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15: ( end ).

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:
OAuth (Github, Facebook Twitter).
S3.

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has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/
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   class Speaker < ActiveRecord::Base belongs_to :user has_many :proposals attr_accessible :user, :bio, :email, :name, :id, :website, :photo has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ validates :bio, :email, :name, :photo, :presence => true validates :email, :format => { :with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => "Must be a valid email address" } end 
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   has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ 
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class Speaker < ActiveRecord::Base belongs_to :user has_many :proposals attr_accessible :user, :bio, :email, :name, :id, :website, :photo has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ validates :bio, :email, :name, :photo, :presence => true validates :email, :format => { :with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => "Must be a valid email address" } end
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has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/
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class Speaker < ActiveRecord::Base belongs_to :user has_many :proposals attr_accessible :user, :bio, :email, :name, :id, :website, :photo has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ validates :bio, :email, :name, :photo, :presence => true validates :email, :format => { :with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => "Must be a valid email address" } end
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, . , Devise Omniauth ; , OAuth, .

, Ruby Rails, , , , , . OAuth, , , , - . , , (, email), .

S3
, Google, Paperclip . Active Record .

Paperclip, Ruby/Rails, : , S3, . , ( S3, ), rake, :

has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/
"photo", (300x300 120x120) , png, gif jpeg.

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class Speaker < ActiveRecord::Base belongs_to :user has_many :proposals attr_accessible :user, :bio, :email, :name, :id, :website, :photo has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/ validates :bio, :email, :name, :photo, :presence => true validates :email, :format => { :with => /\A[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]+\z/, :message => "Must be a valid email address" } end
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:
OAuth (Github, Facebook Twitter).
S3.

OAuth
, . , Devise Omniauth ; , OAuth, .

, Ruby Rails, , , , , . OAuth, , , , - . , , (, email), .

S3
, Google, Paperclip . Active Record .

Paperclip, Ruby/Rails, : , S3, . , ( S3, ), rake, :

has_attached_file :photo, :styles => { :medium => "300x300>", :thumb => "120x120>" } validates_attachment_content_type :photo, :content_type => /^image\/(png|gif|jpeg)/
"photo", (300x300 120x120) , png, gif jpeg.

?
, . Ruby , Python. , , , Rails PHP-.

- , Rails , , PHP , - Rails Ruby , - , . , OAuth Zend Framework 2 , , ZF2 /, , , , . , , Rails ( Ruby), . ( , The Ruby Toolbox , , !)

, . PHP Python, Ruby - . PHP -, , - (GET/POST/Cookies, , PUT/POST , , ..) , Distill .

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