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Where to define custom error types in Ruby and/or Rails?
..._name/exceptions.rb
and defined as:
module GemName
class AuthenticationError < StandardError; end
class InvalidUsername < AuthenticationError; end
end
an example of this would be something like this in httparty
For Ruby on Rails
Put them in your lib/ folder under a file called exc...
Converting string from snake_case to CamelCase in Ruby
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How about this one?
"hello_world".split('_').collect(&:capitalize).join #=> "HelloWorld"
Found in the comments here: Classify a Ruby string
See comment by Wayne Conrad
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Firefox session cookies
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Two ideas :
You have a problem with your session manager (the one included in FF3 or one included in an extension, like tabmixplus)
Use Firebug + FireCookie (https://addons.mozilla.org/en-US/firefox/addon/6683) to debug !
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What is the difference between packaged_task and async
...the differences if you use a rather long function, such as
//! sleeps for one second and returns 1
auto sleep = [](){
std::this_thread::sleep_for(std::chrono::seconds(1));
return 1;
};
Packaged task
A packaged_task won't start on it's own, you have to invoke it:
std::packaged_task<in...
What is the difference between a thread and a fiber?
.../etc.). This means that for threads, data integrity is a big issue because one thread may be stopped in the middle of updating a chunk of data, leaving the integrity of the data in a bad or incomplete state. This also means that the operating system can take advantage of multiple CPUs and CPU cores ...
Cannot change version of project facet Dynamic Web Module to 3.0?
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If none of the above and below solutions if not work kindly go through this link 100% it will work.
– Raki
Mar 16 '18 at 3:52
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Most efficient way to remove special characters from string
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Why do you think that your method is not efficient? It's actually one of the most efficient ways that you can do it.
You should of course read the character into a local variable or use an enumerator to reduce the number of array accesses:
public static string RemoveSpecialCharacters(this...
Simple way to transpose columns and rows in SQL?
...l-name().
You can also build up the list of distinct colors (or values for one column) using FOR XML.
The above can be combined into a dynamic sql batch to handle any table.
share
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improve this an...
How to have an automatic timestamp in SQLite?
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@Matthieu There is DATETIME datatype mentioned in SQLite in the link which u have provided. Read 2.2 Affinity Name Examples
– Rafique Mohammed
Mar 13 '15 at 12:33
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Why doesn't Python have a sign function?
...nt sign this way, and it will still be compatible with the IEEE stuff mentioned by others:
>>> sign = functools.partial(math.copysign, 1) # either of these
>>> sign = lambda x: math.copysign(1, x) # two will work
>>> sign(-4)
-1.0
>>> sign(3)
1.0
>>> sig...