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ActiveRecord OR query
...Foo.where(foo: 'bar').or.where(bar: 'bar')
As noted in this pull request https://github.com/rails/rails/pull/9052
For now, simply sticking with the following works great:
Foo.where('foo= ? OR bar= ?', 'bar', 'bar')
Update: According to https://github.com/rails/rails/pull/16052 the or feature w...
Concept of void pointer in C programming
...tood what was my mistake. I am correcting the same.
References :
http://www.antoarts.com/void-pointers-in-c/
http://www.circuitstoday.com/void-pointers-in-c.
The New code is as shown below.
#include<stdio.h>
#define INT 1
#define FLOAT 2
void absolute_value ( void *j, int *n)
{
if...
How are the points in CSS specificity calculated
Researching specificity I stumbled upon this blog - http://www.htmldog.com/guides/cssadvanced/specificity/
7 Answers
...
JavaScript - Getting HTML form values
...ntries()) {
// console.log(pair[0] + ': ' + pair[1]);
}
form-serialize (https://code.google.com/archive/p/form-serialize/)
serialize(document.forms[0]);
jQuery
$("form").serializeArray()
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...
Check if a string contains a number
...
use str.isalpha()
Ref: https://docs.python.org/2/library/stdtypes.html#str.isalpha
Return true if all characters in the string are alphabetic and there
is at least one character, false otherwise.
...
Run php script as daemon process
...meoutSec=0
PIDFile=/var/run/myphpdaemon.pid
ExecStart=/usr/bin/php -f /srv/www/myphpdaemon.php arg1 arg2> /dev/null 2>/dev/null
#ExecStop=/bin/kill -HUP $MAINPID #It's the default you can change whats happens on stop command
#ExecReload=/bin/kill -HUP $MAINPID
KillMode=process
Restart=on-fail...
How to convert floats to human-readable fractions?
...ink explaining the math behind converting a decimal to a fraction:
http://www.webmath.com/dec2fract.html
And here's an example function for how to actually do it using VB (from www.freevbcode.com/ShowCode.asp?ID=582):
Public Function Dec2Frac(ByVal f As Double) As String
Dim df As Double
D...
How to autosize a textarea using Prototype?
...lt;!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<script src="http://www.google.com/jsapi"></script>
<script language="javascript">
google.load('prototype', '1.6.0...
Apache Proxy: No protocol handler was valid
...'t have mod_proxy_http enabled
sudo a2enmod proxy_http
For me to get my https based load balancer working, i had to enable the following:
sudo a2enmod ssl
sudo a2enmod proxy
sudo a2enmod proxy_balancer
sudo a2enmod proxy_http
...
Python 3: ImportError “No Module named Setuptools”
...ns found on setuptools pypi page (I haven't tested this, sorry :( ):
wget https://bitbucket.org/pypa/setuptools/raw/bootstrap/ez_setup.py -O - | python
easy_install pip
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