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How do I create directory if none exists using File class in Ruby?
...mplementing the wheel, not recommended)
dirname = File.dirname(some_path)
tokens = dirname.split(/[\/\\]/) # don't forget the backslash for Windows! And to escape both "\" and "/"
1.upto(tokens.size) do |n|
dir = tokens[0...n]
Dir.mkdir(dir) unless Dir.exist?(dir)
end
...
PG undefinedtable error relation users does not exist
...ode:
FactoryGirl.define do
factory :user do
guid User.new.send(:new_token)
end
end
And it was erroring because User was not defined when factories.rb was being loaded. I wrapped the User.new call in a block and it solved the issue:
Fixed code:
FactoryGirl.define do
factory :user do
...
uncaught syntaxerror unexpected token U JSON
I get this error "uncaught syntaxerror unexpected token U" when I run my page in chrome. And in firefox I get, "JSON.parse: unexpected character". I'm returning the json data from a php file and the returning json string is valid. I checked it with http://jsonlint.com/ . Any help would be apprecia...
REST API Login Pattern
... per se, at least not with each API request. With 3-way auth, you just use tokens.
User approves API client and grants permission to make requests in the form of a long-lived token
Api client obtains a short-lived token by using the long-lived one.
Api client sends the short-lived token with each ...
Reading a file line by line in Go
...ze per line. You will get bufio.ErrTooLong error, which is bufio.Scanner: token too long if the line is too long. In which case, you'll have to use bufio.ReaderLine() or ReadString().
– eduncan911
Oct 21 '14 at 14:49
...
What are all the common undefined behaviours that a C++ programmer should know about? [closed]
...ide of a function-like macro definition
Dynamically generating the defined token in a #if expression
To be classified
Calling exit during the destruction of a program with static storage duration
share
...
If REST applications are supposed to be stateless, how do you manage sessions?
...
@geoidesic: "Because JSON web tokens are stateless, there is no way to invalidate them without storing server state, thus defeating the advantage of stateless tokens." WIkipedia
– ulatekh
Aug 23 '18 at 15:04
...
Creating C macro with ## and __LINE__ (token concatenation with positioning macro)
...xpand the macros recursively if neither the stringizing operator # nor the token-pasting operator ## are applied to it. So, you have to use some extra layers of indirection, you can use the token-pasting operator with a recursively expanded argument:
#define TOKENPASTE(x, y) x ## y
#define TOKENPA...
C/C++ macro string concatenation
...vel, and it wouldn't work anyway because "s""1" isn't a valid preprocessor token.
[Edit: In response to the incorrect "Just for the record" comment below that unfortunately received several upvotes, I will reiterate the statement above and observe that the program fragment
#define PPCAT_NX(A, B) A...
语音导游 · App Inventor 2 中文网
...把众包工程分享给伙伴。两个人后面会使用同一个 CloudDB Token 读取和写入共同的标记列表。
3. 添加众包组件
在地图上方加入 AddMarkerButton 按钮，再加入 Notifier1 和 CloudDB1。按钮用于开始添加地点，Notifier 用于询问用户选择，Clou...