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Rails: Check output of path helper from console
...cts".* FROM "spree_products" WHERE "spree_products"."deleted_at" IS NULL ORDER BY "spree_products"."id" ASC LIMIT 1
=> "<a data-method=\"get\" href=\"/products/this-is-the-title\">test</a>"
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How unique is UUID?
...ely generate a batch of 16,384 UUIDs within the span of a single "tick" in order to overflow the sequence number. I have seen this happen with an implementation that relied, naively, on a clock source that (1) had μs-level granularity, and (2) was not guaranteed to be monotonic (system clocks are ...
Why do you need to invoke an anonymous function on the same line?
...de will not "leak" outside the scope. This is very useful in JavaScript in order not to pollute the global scope.
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What are the dark corners of Vim your mom never told you about? [closed]
...ave that file and get a permission error, I just issue that vim command in order to save the file without the need to save it to a temp file and then copy it back again.
You obviously have to be on a system with sudo installed and have sudo rights.
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How do I read configuration settings from Symfony2 config.yml?
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In order to be able to expose some configuration parameters for your bundle you should consult the documentation for doing so. It's fairly easy to do :)
Here's the link: How to expose a Semantic Configuration for a Bundle
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difference between variables inside and outside of __init__()
...company.com
>>> mycompany.com
You can also use class methods in order to change the class variable for all the instances of the class. For example:
@classmethod
def change_my_companys_name(cls, name):
cls.company = name
and now change_my_companys_name()
bob.change_my_companys_na...
What is an unsigned char?
...char)-1;
It also follows that a conversion is not just truncating higher order bits. The fortunate event for two's complement is that it is just a truncation there, but the same isn't necessarily true for other sign representations.
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Create a CSV File for a user in PHP
... to create the CSV, but miss a basic part of the question: how to link. In order to link to download of the CSV-file, you just link to the .php-file, which in turn responds as being a .csv-file. The PHP headers do that. This enables cool stuff, like adding variables to the querystring and customize ...
How do I find the caller of a method using stacktrace or reflection?
...f the
caller is only interested in the top few frames on the stack.
In order to find the immediate caller's class, first obtain a StackWalker:
StackWalker walker = StackWalker
.getInstance(StackWalker.Option.RETAIN_CLASS_REFERENCE);
Then either call the getCallerCla...
Why is my process's Exited method not being called?
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In order to receive a callback on Exited event, the EnableRaisingEvents must be set to true.
Process correctionProcess = Process.Start(startInfo);
correctionProcess.EnableRaisingEvents = true;
correctionProcess.Exited += new Ev...