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How to convert QString to std::string?
...
One of the things you should remember when converting QString to std::string is the fact that QString is UTF-16 encoded while std::string... May have any encodings.
So the best would be either:
QString qs;
// Either this if you use UTF-8 anywhere
std::string utf8_text = qs.toU...
Fully custom validation error message with Rails
..._name method on the model class. The method is passed the column name as a string and returns the string to use in validation messages.
class User < ActiveRecord::Base
HUMANIZED_ATTRIBUTES = {
:email => "E-mail address"
}
def self.human_attribute_name(attr)
HUMANIZED_ATTRIBUTE...
Install NPM into home directory with distribution nodejs package (Ubuntu)
...s. Here's how I suggest compartmentalizing Nodejs packages:
Install Nodejs and NPM via the chris-lea PPA. Then I set up a package root in my homedir to hold the Node "global" packages:
$ NPM_PACKAGES="$HOME/.npm-packages"
$ mkdir -p "$NPM_PACKAGES"
Set NPM to use this directory for its global pac...
How to view the SQL queries issued by JPA?
...tabaseQuery();
databaseQuery.prepareCall(session, new DatabaseRecord());
String sqlString = databaseQuery.getSQLString();
This SQL will contain ? for parameters. To get the SQL translated with the arguments you need a DatabaseRecord with the parameter values.
DatabaseRecord recordWithValues= ne...
No Exception while type casting with a null in java
...hecks whether the object is null or not. If null then it simply prints the string "null". Otherwise it will call the toString method of that object.
Adding more details: Internally print methods call String.valueOf(object) method on the input object. And in valueOf method, this check helps to avoid...
How to change root logging level programmatically for logback
...gged is correct
assertThat(loggingEvent.getFormattedMessage(), containsString("hello world"));
}
}
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What is the string concatenation operator in Oracle?
What is the string concatenation operator in Oracle SQL?
5 Answers
5
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Struggling trying to get cookie out of response with HttpClient in .net 4.5
...nd can't inject the CookieContainer. This works in .NET Core 2.2:
private string GetCookie(HttpResponseMessage message)
{
message.Headers.TryGetValues("Set-Cookie", out var setCookie);
var setCookieString = setCookie.Single();
var cookieTokens = setCookieString.Split(';');
var first...
I want to copy table contained from one database and insert onto another database table
...base instead of just one table. For that I'd recommend using mysqldump command.
– thorne51
Jun 18 '14 at 9:33
MySQL ca...
Check if pull needed in Git
... space-separated fields by the piped sed command, e.g. origin master.
This string is fed into git ls-remote which returns the head commit of the remote branch. This command will communicate with the remote repository. The piped cut command extracts just the first field (the commit hash), removing th...