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How do I set up email confirmation with Devise?
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1. Make sure you include confirmable in Model.devise call
class User < ActiveRecord::Base
devise :database_authenticatable, :confirmable ...
end
2. Make sure you add confirmable to the user migration
create_table :users do |t|
t.database_authenticatable
t.confirmabl...
How to check if a folder exists
I am playing a bit with the new Java 7 IO features, actually I trying to receive all the xml files of a folder. But this throws an exception when the folder does not exist, how can I check if the folder exists with the new IO?
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微博为什么限制140字(附短信70字限制考) - 创意 - 清泛网 - 专注C/C++及内核技术
.... We reserve 20 characters for people’s names, and the other 140 are all yours! (via Twitter FAQ)
也就是说，twitter希望微博首先能做到“微”，言简意赅，其次这样的限制是考虑到短信更新状态的字数限制，本身是160字母的限制，再留20字给id...
iOS multiline label in Interface builder
...orks when I am writing the label, but when I press enter to accept it just all goes on one line.
– Samuli Lehtonen
Jul 2 '11 at 14:30
3
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“X-UA-Compatible” content=“IE=9; IE=8; IE=7; IE=EDGE”
...ontent="IE=7; IE=9" />
Renders IE7 and IE8 as IE7, but IE9 as IE9. It allows for different levels of backwards compatibility. In real life, though, you should only chose one of the options:
<meta http-equiv="X-UA-Compatible" content="IE=8" />
This allows for much easier testing and mai...
Is there a Rake equivalent in Python?
...ke is a software build tool written in Ruby (like Ant or Make ), and so all its files are written in this language. Does something like this exist in Python?
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Git: “please tell me who you are” error
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I spend on it lots hours when i call php script to init and commit git.
And i Found the work flow should Be:
1.git init
2.git config user.name "someone"
3.git config user.email "someone@someplace.com"
4.git add *
5.git commit -m "some init msg"
If you swa...
Why can't I initialize non-const static member or static array in class?
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Why I can't initialize static data members in class?
The C++ standard allows only static constant integral or enumeration types to be initialized inside the class. This is the reason a is allowed to be initialized while others are not.
Reference:
C++03 9.4.2 Static data members
§4
If a st...
Which version of MVC am I using?
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This isn't always present in all MVC projects; it may be version dependent and Visual Studio dependent; it is possibly project-dependent as well.
– JosephDoggie
Jan 26 '15 at 20:26
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Git - Difference Between 'assume-unchanged' and 'skip-worktree'
...tion file for building the application on a server, but I want to build locally with different settings. Naturally, the file always shows up when i do 'git status' as something to be staged. I would like to hide this particular change and not commit it. I won't make any other changes to the file.
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