How to covert a MongoDB string field to an array
db.collection.find().forEach(function(myDocument) {
db.collection.update(
{ _id: myDocument._id },
{ "$set": { "fieldToUpdate": [myDocument.fieldToUpdate] } }
);
})About louis
Posts by Louis Nel:
How to exclude a category from your WordPress homepage
To exclude a category simple include this code snippet in your WordPress theme’s functions.php file. It is best practice to add this to your child theme as the change will be lost when you update your theme.
function exclude_category_home( $query ) {
if ( $query->is_home ) {
$query->set( 'cat', '-8' );
}
return $query;
}
add_filter( 'pre_get_posts', 'exclude_category_home' );The number next to ‘cat’ would be the ID of the category that you are looking to exclude.
How to stop all instances of a node.js server
Sometimes when you’re developing, the node.js process will keep running even though it has been stopped in the terminal. This calls for some drastic measures to kill the node processes.
This process is slightly different on Windows vs Linux machines.
How to kill all node.js processes on Windows
taskkill /im node.exe
If the issue is not resolved, try the following command with the “force” flag
taskkill /f /im node.exe
How to kill all node.js processes on Linux
Similar to Windows, you can use the following command to kill all node.js processes.
killall node
If this does not resolve the issue, you should follow the following process. Use this command to determine the process ID of a particular process.
netstat
$ netstat -nlp | grep :8080 tcp 0 0 0.0.0.0:8080 0.0.0.0:* LISTEN 1073/node Get the process ID from the last column and target the process like this:
$ kill 1073If the process doesn’t not want to exit, use the “force” flag of 9
$ kill -9 1073
Change Gravity Forms spinner image to custom image and show it above a semi-transparent layer
We do a lot of projects using Gravity Forms. When AJAX is enabled on form submission the spinner is very small and unobtrusive. The ideal is having a nice full screen loader icon that is overlays on a semi-transparent background and gives your site that app-like feel.
Step 1: Add this code to your functions.php file
add_filter("gform_ajax_spinner_url", "spinner_url", 10, 2);
function spinner_url($image_src, $form){
return get_bloginfo('template_directory') . '/images/blank.gif' ; // relative to your theme images folder
}
Make sure the file blank.gif is a transparent 1px x 1px gif file. This will overwrite the existing Gravity Forms gif.
Step 2: Add this code to your CSS file (style.css)
img.gform_ajax_spinner {
position: fixed !important;
z-index: 999999;
left: 0;
top: 0;
right: 0;
bottom: 0;
display: block !important;
overflow: hidden !important;
width: 100% !important;
height: 100% !important;
background-color: rgba(0,0,0);
/* fall back */
background-color: rgba(0,0,0,0.7);
url('images/preloading.gif'); /* fallback GIF spinner */
background-image: linear-gradient(transparent,transparent), url('images/oval.svg'); /* SVG spinner */
background-repeat: no-repeat;
background-size: 60px 60px;
background-position: center center;
}
Please note: for the SVG spinner to work, you need to enable the SVG mime type in WordPress. This is disabled by default and WordPress will not recognise SVG, add this to your functions.php file
function cc_mime_types($mimes) {
$mimes['svg'] = 'image/svg+xml';
return $mimes;
}
add_filter('upload_mimes', 'cc_mime_types');
If the user’s browser does not support SVG the fallback .gif file will be used.
Article reposted from: https://louisnel.co.za/blog/change-the-spinner-image-show-it-above-a-semi-transparent-layer/