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Can media queries resize based on a div element instead of the screen?
...ery)
$parent (the parent element(s) of the element(s) matching the query)
$root (the root element of the document, <html>)
Element queries allow you to compose your layout out of individually responsive design modules, each with a bit of 'self-awareness' of how they are being displayed on the...
How does JPA orphanRemoval=true differ from the ON DELETE CASCADE DML clause
...se engine. However, this can be a very dangerous operation if you delete a root entity by mistake.
Conclusion
The advantage of the JPA cascade and orphanRemoval options is that you can also benefit from optimistic locking to prevent lost updates.
If you use the JPA cascading mechanism, you don't nee...
How and where are Annotations used in Java?
...tta - uses both annotations and XML configuration files. For example, the @Root annotation tells the Terracotta runtime that the annotated field is a root and its memory should be shared between VM instances. The XML configuration file is used to configure the server and tell it which classes to ins...
Should each and every table have a primary key?
...most probably, you are missing something. Why keep identical records?
In MySQL, the InnoDB storage engine always creates a primary key if you didn't specify it explicitly, thus making an extra column you don't have access to.
Note that a primary key can be composite.
If you have a many-to-many l...
How to restart a rails server on Heroku?
...eroku restart -a app_name -r remote_name
Alternatively if you are in the root directory of your rails application you can just type
heroku restart
to restart that app and and you can create an easy alias for that with
alias hr='heroku restart'`
You can place these aliases in your .bashrc fil...
Entity Framework vs LINQ to SQL
...oject "dblinq" replaces the LINQ to SQL assembly with one that can talk to MySQL, PostgreSQL, Ingres, Firebird, SQLite ... and Microsoft SQL (of course).
– Contango
Dec 24 '10 at 11:41
...
How do you prevent IDisposable from spreading to all your classes?
...concurrently but not the other ones. Think of what should be the aggregate root. In this case it should be Bus, IMHO, although i'm unfamiliar with the domain. So, in that case, the bus should contain the waithandle and all operations against the bus and all it 's children will be synchronized.
...
How to construct a relative path in Java from two absolute paths (or URLs)?
... But be aware of java.lang.IllegalArgumentException: 'other' has different root exception when asking for relative path from "C:\temp" to "D:\temp".
– Igor
Feb 13 '16 at 17:35
...
Use PHP composer to clone git repo
...hen you do, make sure that:
The "repositories" field is specified in the root composer.json (it's a root-only field, repository definitions from required packages are ignored)
The repositories definition points to a valid VCS repo
If the type is "git" instead of "vcs" (as in your question), make s...
What is a faster alternative to Python's http.server (or SimpleHTTPServer)?
...ther a specific file or a directory to be
set as the root of the web server. Use this if you
have a directory full of HTML, cgi, php3, epy, or rpy
files or any other files that you want to be served up
raw.
The...