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Combine two ActiveRecord::Relation objects
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If you want to combine using AND (intersection), use merge:
first_name_relation.merge(last_name_relation)
If you want to combine using OR (union), use or†:
first_name_relation.or(last_name_relation)
† Only in ActiveRecord 5+; for 4.2 install the where-or backport.
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Preserve Line Breaks From TextArea When Writing To MySQL
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Here is what I use
$textToStore = nl2br(htmlentities($inputText, ENT_QUOTES, 'UTF-8'));
$inputText is the text provided by either the form or textarea.
$textToStore is the returned text from nl2br and htmlentities, to be stored in your database.
ENT_QUOTES will convert both double and singl...
Replace non-ASCII characters with a single space
...recommend the unidecode module:
from unidecode import unidecode
def remove_non_ascii(text):
return unidecode(unicode(text, encoding = "utf-8"))
Then you can use it in a string:
remove_non_ascii("Ceñía")
Cenia
shar...
Eclipse ctrl+right does nothing
... kind of bug in the editor specifically (https://bugs.eclipse.org/bugs/show_bug.cgi?id=426557). Sometimes you can find that when you restart can't move with control+arrow in the editor but you can in other views like console window.
You can disable welcome screen ( in most eclipse based IDEs it's a...
$PHP_AUTOCONF errors on mac os x 10.7.3 when trying to install pecl extensions
I am trying to setup my machine with pecl_http and memcache and in both cases, I get similar errors. This is on MAC OS X 10.7.3 (lion) and I also have XCODE installed on it. I also installed Zend Server community edition before running these commands and have CFLAGS='-arch i386 -arch x86_64' environ...
JQuery: 'Uncaught TypeError: Illegal invocation' at ajax request - several elements
...er correct entries).
So, instead of:
var data = {
'mode': 'filter_city',
'id_A': e[e.selectedIndex]
};
it should be:
var data = {
'mode': 'filter_city',
'id_A': e[e.selectedIndex].value
};
Note: check Jason Kulatunga's answer, it quotes JQuery doc to explain wh...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...社区 反馈 我要反馈 var _hmt = _hmt || []; (function() { var hm = document.createElement("script"); hm.src = "https://hm.baidu.com/hm.js?8d287b854d737bdc880e8ddeac1b309d"; var s = document.getElementsByTagName("script")[0]; ...
How to handle WndProc messages in WPF?
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WM_MOUSEWHEEL for example, the only way to reliably trap those messages was by adding the WndProc to a WPF window. This worked for me, whereas the official MouseWheelEventHandler simply didn't work as expected. I was unable t...
How to print register values in GDB?
...s not show up. Yet I am looking at my code assembly in the IDE where a EXC_BAD_ACCESS signal has been generated with the instruction: test %eax, %eax This is in XCode running gdb. Why is gdb not reporting the eax register?
– NoahR
Oct 20 '11 at 18:45
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Remove Object from Array using JavaScript
...odash.js or sugar.js for common tasks like this:
// lodash.js
someArray = _.reject(someArray, function(el) { return el.Name === "Kristian"; });
// sugar.js
someArray.remove(function(el) { return el.Name === "Kristian"; });
in most projects, having a set of helper methods that is provided by libr...