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Rails 4 multiple image or file upload using carrierwave
...avatar:string
rake db:migrate
In post.rb
class Post < ActiveRecord::Base
has_many :post_attachments
accepts_nested_attributes_for :post_attachments
end
In post_attachment.rb
class PostAttachment < ActiveRecord::Base
mount_uploader :avatar, AvatarUploader
belongs_to :post
end...
how to delete all cookies of my website in php
...mezones
setcookie($name, '', 1, '/');
}
}
}
Also based on this PHP-Answer
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Python Empty Generator Function
... the same thing.
It's a subtle difference, but I honestly think the yield-based functions are more readable and maintainable.
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Stylecop vs FXcop
...t tasks, and it is worth investigating the value each provides on your codebase and why you should run them.
– Jedidja
Dec 10 '09 at 22:36
3
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Why does Eclipse Java Package Explorer show question mark on some classes?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Changing my CALayer's anchorPoint moves the view
...
There is such a simple solution. This is based on Kenny's answer. But instead of applying the old frame, use it's origin and the new one to calculate the translation, then apply that translation to the center. It works with rotated view too! Here's the code, a lot s...
Create a devise user from Ruby console
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How to print the ld(linker) search path
...ber of different built-in default linker scripts, and chooses between them based on various other linker options.)
If you're linking via gcc:
You can pass the -v option to gcc so that it shows you how it invokes the linker. In fact, it normally does not invoke ld directly, but indirectly via a ...
how does array[100] = {0} set the entire array to 0?
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When should I choose Vector in Scala?
...t your algorithm is doing.
List is a singly linked list, while Vector is a base-32 integer trie, i.e. it is a kind of search tree with nodes of degree 32.
Using this structure, Vector can provide most common operations reasonably fast, i.e. in O(log_32(n)). That works for prepend, append, update, ra...