Increase the http.postBuffer:

git config http.postBuffer 524288000

openssl rand -base64 12

rand
Generate pseudo-random bytes.

base64
Base64 Encoding

An evolving list of JS Image Sliders and Lightboxes.

Image Sliders

Slick - "the last carousel you'll ever need"

• v1.8.0 from 2017 but under active development
• 28.4k Github stars
• Great demos & examples
• Depends on jQuery

Swiper - "The Most Modern Mobile Touch Slider"

• v11.1.12, September 1, 2024
• 39.5k Github stars

Lightbox

Slick + Lightbox

• Building upong Slick
• no longer in development

Gallery/Slider AND Lightbox

PhotoSwipe

• v5.4.4
• 23.9k Github stars

TODO:

• make examples and test

Notes for changing Wordpress Multisite Subdirectories:

Step 1

Update siteurl & home in wp_X_options Don’t forget the trailing slash

Step 2

Change corresponding paths in wp_blogs

Step 3 (Optional)

Clear Caches

Step 4

Check Image upload folders

Step 5

define( 'SITE_ID_CURRENT_SITE', 1 );
define( 'BLOG_ID_CURRENT_SITE', 1 );

The Node Version Manager allows for the installation and use of different versions of node and npm.

nvm install v18.20.4

Downloading and installing node v18.20.4...
Downloading https://nodejs.org/dist/v18.20.4/node-v18.20.4-darwin-x64.tar.xz...
######################################################################### 100.0%
Computing checksum with shasum -a 256
Checksums matched!
Now using node v18.20.4 (npm v10.7.0)

nvm use v18.20.4

Now using node v18.20.4 (npm v10.7.0)

npm -v

10.7.0

node -v # v18.20.4

The traditional Custom Fields in Wordpress have been around since the beginning, gives some degree of customability to the posts. They are very basic, but the work.

Soon after, the Advanced Custom Fields become the norm, adding a nice UI on top of the custom fields, and enabling things like checkboxes, time/date, repeater, etc.

All was great in Wordpressland, but the ACF were sold to WP Enginge who are now trying hard to monetize the ACFs. Instead of payment per installation, they now moved ACFs to a monthly/yearly subscription model.

I still keep using ACFs for client work, but try to remove it from my personal sites - like this one. All it did was to have a checkbox to enable/disable Markdown on the posts.

Markdown is now by default on, ACF no longer needed.

Also, I was stuggling to show the original Custom Fields:

Only AFTER I uninstalled ACF, the option showed up again!

ProcessWire's way of selecting ("getting") child pages is usually like this:
Get all children

$events = $page->children();

This can be fine-tuned with the Selector string.
Get all children, where the date or end_date is later than today, sort the results by date.

$events = $page->children("date|end_date>today,sort=date");

This works great, by we recently had a case, where a schedule talk had to be postponed to an unknown date in the future. I left the date field in the Backend empty, we need to modify the selection string:
Get all children, where the date or end_date is later than today OR where date is empty, sort the results by date.

$events = $page->children("(date|end_date >today), (date=), sort=date");

It's beautiful, that it's just a small change in the selection string:

• The additional parenthesis () around (date|end_date >today) and (date=) specify an OR relation. Default is AND, here it means: select children with either (date|end_date >today) OR (date=) - no date.
• date= means that the date field is empty

Resources

• More about Selectors: https://processwire.com/docs/selectors/
• Seleceting an Empty Field: https://processwire.com/talk/topic/957-how-to-find-elements-with-empty-field/

It happens to best of us: You have an local installation of your favourite CMS - and then you can't remember the password! Login throtteling kicks in, you still can't remember it. And this being a local XAMPP installation, you can't send an email to recover the password.

Here is Ryan¹ to the resuce:

You can always reset your password just by pasting this temporarily into any one of your templates, and then viewing a page that uses the template:

$u = $users->get('admin'); // or whatever your username is
$u->of(false); 
$u->pass = 'your-new-password';
$u->save();

¹ Who is Ryan? Ryan Cramer is the founder and lead developer of ProcessWire.

ACFs are a great (legacy?) way of storing additional data in a ClassicPress/Wordpress installtion. But things can get a but ugly when you have thousands of posts, each with ACFs maybe nested Repeater ACFs. Getting data out of larger installation with get_posts and WP_Query can quickly hit the limits of the DB installation and fail.

The solution? A raw, hand-crafted MySQL query:

Getting a Single Custom Field

SELECT wp_postmeta.meta_value             // return the meta_value
  FROM wp_posts, wp_postmeta
  WHERE wp_posts.post_status = 'publish'    // publish posts only
   AND wp_posts.ID = wp_postmeta.post_id
   AND wp_postmeta.meta_key = 'my_key'       // get value from 'my_key'

Getting the results with $wpdb->get_results().

$results = $wpdb->get_results($query);

Example Output

Array
(
    [0] => stdClass Object
        (
            [meta_value ] => 123
        )
    [1] => stdClass Object
        (
            [meta_value ] => 456
        )
)

That works great, if you want to get one Custom Field, but how about multiple Custom Fields?

Getting Multiple Custom Fields

Custom fields are stored in the wp_postmeta table and defined by the meta_key and meta_value column.

SELECT p.ID, m1.meta_value as v1, m2.meta_value as v2 
FROM wp_posts p
LEFT JOIN wp_postmeta m1 ON p.ID = m1.post_id
LEFT JOIN wp_postmeta m2 ON p.ID = m2.post_id
WHERE p.post_status='publish'
AND m1.meta_key = 'my_key'
AND m2.meta_key = 'my_other_key'

Is it important to note - and slightly unintuitive - that the select line also declares aliases which will be used in the rest of the query:

1. The p in p.ID is a shortcut for wp_posts
2. The m1 in m1.meta_value is a shortcut for wp_postmeta
3. Same as m2, but we want to select and JOIN different meta key we also need to have two shortcuts for wp_postmeta.
4. meta_value as v1 is also important. If we would not use ... as v1 then the return array would include meta_value as a key and m2 would overwrite m1. Does not have to be v1 and v2, use whatever you like.

Example Output

Array
(
    [0] => stdClass Object
        (
            [ID] => 123
            [v1] => 33
            [v2] => 20130402
        )
    [1] => stdClass Object
        (
            [ID] => 456
            [v1] => 22
            [v2] => 20130404
        )
)

Getting Multiple Custom Fields including ACF Repeater

The ACF Repeater fields also stores its values in wp_postmeta, following this schema: repeatername_nr_fieldname. Let's say we have a repeater field called videos and a sub-field called video, the meta_keys in wp_postmeta would look like this:

videos_0_video
videos_1_video
videos_2_video
videos_3_video
...

That means we need to modify the previous query, because the we can't be sure how many meta_key we have.

SELECT p.ID, m1.meta_value as v1, m2.meta_value as v2 
FROM wp_posts p
LEFT JOIN wp_postmeta m1 ON p.ID = m1.post_id
LEFT JOIN wp_postmeta m2 ON p.ID = m2.post_id
WHERE p.post_status='publish'
AND m1.meta_key REGEXP '[[:<:]]videos_[0-9]*_video[[:>:]]' 
AND m1.meta_value > 0
AND m2.meta_key = 'my_key'

AND m1.meta_key REGEXP '[[:<:]]videos_[0-9]*_video[[:>:]]' is a regular expression with some MySQL-specific syntax: [[:<:]] means beginning of string and [[:>:]] stands for end of string.

Sources

• https://wordpress.stackexchange.com/questions/237957/get-post-with-multiple-meta-keys-and-value
• https://wordpress.stackexchange.com/questions/358962/get-2-meta-values-from-meta-key-column

Problem

Organizing meeting across time-zones can lead to mis-communication of the meeting start-times, especially when daylight-saving-time changes are involed.

Solution

Show the Meeting Start Time AND the current Local Time at the Meeting Website.

var f = new Intl.DateTimeFormat([], {
  timeZone: 'Asia/Tokyo',
  hour: 'numeric',
  minute: 'numeric',
  second: 'numeric',
  hourCycle: 'h23'
})
var setTime = () => document.getElementById('time').innerHTML = f.format(new Date())
setTime()
setInterval(() => setTime(), 1000)
</script>

Intl.DateTimeFormat creates a new Intl formatter. Time to be displayed: Asia/Tokyo. Displayed are only: hour, minute and second. The hourCycle' optionh23` sets the display to a 24h clock.

setTime is a function that sets the innerHTML of id element time to the current Date, formatted with the Intl date.

setTime() call the function once on load.

setInterval() repeatetly calls the setTime() function to update the clock.