Category: Computers & Technology - Page 27

WordPress dev tip: How to move the Featured Image box up… to just below the Publish box

Whenever I’m doing development on a WordPress site that makes heavy use of taxonomies (it happens with meta data-rich portfolios for architects, for instance, which seems to be a niche for me), I get really annoyed with how much WordPress devalues the Featured Image meta box. I don’t want it shoved way down below all of the taxonomies, mainly because users will probably forget or never even know that it’s there!

What I really want is to have the Featured Image box near — but not at — the top of the sidebar. Specifically, I want it to come just below the Publish meta box.

I’ve found some resources online that almost got me there, but not quite. However a minor tweak to this example solves the problem for me.

I’m taking some shortcuts here, some of which you may not like. First, most tutorials on manipulating meta boxes encourage you to remove them and then add duplicates with a slightly different ID. I think what’s happening here though (not having inspected the source code!) is that your modifications to the add_meta_boxes action run before the standard WordPress meta boxes get loaded (possibly/probably because, as you’ll see, we’re setting the priority to high), so if you’ve created one with the same ID as a default box, yours takes precedence.

The other shortcut I’m taking, which I suspect will be more controversial (but it’s just the way I like to do this) is that I am creating an anonymous function directly within the add_action() call. That’s just a personal preference, but I like to do it because 1) it keeps the code more compact and 2) it avoids creating a bunch of named functions that have no business ever being called anywhere else anyway.

So what’s happening here? First, I’m creating the Publish meta box. Then I’m creating the Featured Image meta box. By giving them both high priority, WordPress makes them the first two meta boxes in the sidebar. The reason I have to create the Publish meta box is that, if I didn’t, Featured Image would come first, above it. I don’t want that.

I’ve set the $screen parameter to null so this will happen on all editing screens, but if you only wanted to move Featured Image up on posts and not on pages, for example, you could set it to 'post'.

Here’s the full code:

add_action('add_meta_boxes', function() {
add_meta_box('submitdiv', __('Publish'), 'post_submit_meta_box', null, 'side', 'high');
add_meta_box('postimagediv', __('Featured Image'), 'post_thumbnail_meta_box', null, 'side', 'high');
});

For more background, check out the official documentation on the add_meta_box() function.

What’s in my bag?

Now you have to do a stuff-in-my-bag photo too. That’s the rule. It’s better than working, right? Of course it is, you daft sod.

— Matt Gemmell (@mattgemmell) May 5, 2016

Sounds like a dare to me. How can I resist?

bag1a

First, the bag itself. I love Tom Bihn bags. In addition to this backpack and its clip-in accessory pouches, I own two messenger bags and an assortment of other pouches. They are super high-quality and supremely functional. As you’ll see when I show you how much stuff I can cram into this bag and still have plenty of room to spare!

Let’s look at the contents of the red pouch. That’s where I keep adapters and thumb drives.

bag2

Oh, and an iPod nano, for some reason.

I need napkins (and/or paper towels) a lot. I can’t stand having a runny nose, or spilling things. Whatever the reason, I carry a few around with me all the time. I know it’s probably not the best for the environment, but I do buy recycled as much as possible. Anyway, that’s what the black pouch is for. And the large black thing is a padded sleeve perfectly sized for the 11-inch MacBook Air.

bag3

Next up, another bag-within-a-bag. This is the one non-Tom Bihn case I use. It’s a Roocase for the iPad mini. The iPad mini actually just barely fits in it, which is fine. I take my iPad mini with me to meetings, especially first-time meetings with new clients, because it doesn’t create a wall like having a laptop on the desk does. I have also stopped carrying my laptop when I travel for pleasure, so the iPad in the Roocase is all I bring. In addition to protecting the iPad, the Roocase has a side pocket into which I manage to shove a Field Notes notebook, Space Pen, headphones and some business cards.

bag4

And finally… everything else. This is the entirety of what I had in my backpack when I came to work this morning, aside from some running clothes I had also shoved in but don’t really feel I need to show here.

bag5

Look at all that stuff! From top left to bottom right, we have:

Two copies of my latest CD
Victorinox Swiss Army Cybertool S, which is too big to actually carry in my pocket but an essential tool for tech geeks
Another Field Notes notebook
Sharpie, Field Notes pen, Space Pen
Compact travel power strip (highly recommended)
More business cards
1/8″ to 1/4″ headphone adapter (not sure why that’s in there)
Novelty fan that plugs into iPhone Lightning port
Postage stamps
iPhone/iPad charger
MacBook Air charger
$3.01 in change
A bunch of Ricola cough drops (original flavor)
Spare keys on a special strap that Tom Bihn also makes
Anker portable phone charger, its charging cable, a USB-to-Lightning cable, and carrying pouch
Roocase with iPad mini and all of that crap inside it
THE BEST BACKPACK EVER
11-inch MacBook Air with padded sleeve
Accessory pouch with napkins
Accessory pouch with adapters, thumb drives and iPod nano

P.S. Sorry for the quality of the photos… I hastily snapped these on the studio conference table under harsh fluorescent lighting.

Tips on saving vector images from Adobe Illustrator for SVG web use

With Internet Explorer 8 end of life coming on January 12, all kinds of new possibilities are opening up to us web developers who can finally start making use of technologies that have had wide support in modern browsers for years, but that we were reluctant to embrace because of the need for IE8-friendly workarounds.

For me, one of those things is SVG images. In recent years, especially since Responsive Web Design (and high-resolution displays) took off, I’ve been receiving web designs more and more in Illustrator format, rather than Photoshop. It’s great to get these assets as vectors that I can scale and size as I need in my build-out of high-res, responsive websites. But until now I had still been pulling vector assets over into Photoshop and producing multiple carefully-sized versions of things like logos and custom icons.

Now, however, SVG is a viable — in fact, preferable, given its flexibility and smaller file size (plus the ability to hack the XML code right in the image files themselves) — alternative to multiple PNGs of every image.

The thing is, while I have been using Photoshop extensively for over 20 years, I’ve never really gotten the hang of Illustrator. I know just enough to go into an Illustrator file, pull out the assets I need, and try not to screw anything else up in the process. That’s what this article is for.

Over the past week I have pulled a number of vector assets out of Illustrator designs as SVGs for a couple of projects, and I’m starting to get the process down. Here’s what you need to know.

The Steps

1. Select the object you want to make into an SVG. Most of the time designers will have grouped the pieces of the object together, so just a single click on the object will select it. Make careful note of the blue outlines to be sure everything you want is selected (and maybe even more importantly, that nothing else you don’t want is). You can also click and drag to select all objects within an area, or use the Layers palette to select the elements. This can be tedious, but be sure you’ve got what you need — and only what you need — highlighted. Once it’s selected, copy it to your clipboard.

2. Create a new document in Illustrator. Default settings are fine. Once the blank document appears, paste in the copied object. It should appear centered in the document. There should be a ton of space around it. That’s good. Since we’re dealing with vector art, scale is irrelevant. You just want to make sure everything fits within the boundaries of the document. (The “artboard” if you’re familiar with Illustrator speak.) Keep the object selected (blue outline). If you deselected it, just Select All.

3. Shrink the artboard to fit the object. If you don’t do this, you’ll end up with a bunch of blank space within the defined dimensions of the image and it will be impossible to work with. Good thing it’s super easy. With the entire object selected, go to Object > Artboards > Fit to Selected Art and you’ll get a perfect container.

4. IMPORTANT! If there are transparency effects within the object, you need to flatten it now. A lot of the time you can skip this step. But if you do, you may find that parts of the design are missing in the resulting SVG. I found it’s easy to forget this; I don’t find it intuitive that this would get lost in the SVG conversion. So go to Object > Flatten Transparency… Review the settings here to ensure you’re happy with them (sorry, I don’t have a lot of guidance here), and click OK Your image should not look different. If it does, undo, and repeat with different settings in the Flatten Transparency dialog.

5. Save. There’s no “Save for Web” option for SVG. Just regular ol’ “Save As”. Be sure to set the Format menu to SVG (svg). You could try compressed, but really SVGs are pretty small anyway, and I like to keep the code editable so I can tinker with it if needed. (Changing the color fill, for instance.) Once again there are a ton of settings presented in the SVG Options dialog, but I’ve found the default settings seem to work fine. (One change I have made is to set CSS Properties to Presentation Attributes but I’m not entirely sure yet what difference it makes.)

That’s it! You should now have an SVG ready for placement using an <img> tag, or as background-image in CSS. Just note that CSS treats SVG images a bit differently than regular JPEGs and PNGs, so you may need to add a few extra properties to keep the SVGs within their container elements in your page.

Make Advanced Custom Fields smarter about handling date fields

I love Advanced Custom Fields almost as much as I love WordPress itself. But that’s not to say it doesn’t have its problems. Most are obscure, and minor… and incredibly aggravating once you stumble upon them.

Here’s one such case. Date Picker fields are great, but no one seems to be able to agree on how to store dates in a database… other than insisting on avoiding Unix timestamps, the obvious choice.

ACF stores its dates, for some reason, in YYYYMMDD format (or, as we’d express it in PHP Land, Ymd). No delimiters at all. If you’re not going to use Unix timestamps, why not at least use the MySQL convention of Y-m-d H:i:s? But I digress.

I’m presently working on a project that merges some functionality of ACF and Gravity Forms, along with some custom code, to create a jobs board. It’s super-slick how Gravity Forms can create posts from a form submission, and even set them to pending review so a site editor can come in and review them before publishing.

But… dates. Jobs boards have a lot of dates. And while Gravity Forms offers a wealth of options for date string format, Ymd isn’t one of them. So it ends up storing the date value in the database in a format ACF doesn’t like. Because ACF is very picky. It wants that format, and no other. If the value in the field is not in Ymd format, the value displayed on the admin editing screen is just… blank. And then when you save, whatever was previously saved in that field is erased.

It doesn’t have to be this way. And thanks to the following bit of code, it won’t be. Now bear in mind, this is only altering what ACF renders on the editing screen. Once you’ve saved again from that point, the date will be stored in ACF’s preferred format, but up until then, it will be in whatever other format it was in when it landed in the database.

If you’re writing your front end code proactively, that won’t matter. Because you’re already assuming data inconsistency and using strtotime() to standardize any dates you’re working with in your templates, right? Of course you are.

OK, then. So the real goal here is just to get ACF to display the correct, saved date when you go in to edit the post, so it doesn’t then wipe out the date when you hit Save Changes.

In your functions.php file, or wherever you think is best (a plugin would be nice), do this:

function acf_smart_dates($field) {
  if ($field['value']) {
    $field['value'] = date('Ymd',strtotime($field['value']));
  }
  return $field;
}
add_filter('acf/prepare_field/type=date_picker','acf_smart_dates');

That’ll do.

Hack your hosts file to prevent distracting yourself at work

I suppose it’s a significant statement on the increasing marginalization of the computer as a work-only device. I hardly ever touch my Mac at home anymore. I really only use it for work. The problem is, I am permanently logged into Facebook and Twitter on my computer, and I am prone to distraction.

So I made the decision today to further that marginalization, by making it impossible for me to access Facebook and Twitter on my Mac. How? It’s easy! Assuming you have administrator access, at least. But why wouldn’t you? (If your Mac is a company computer and they have things so locked down, I’d say don’t worry about blocking social media sites… spend that time working on your résumé.)

These instructions are for Mac OS X. I’m not really sure how to do this in Windows. (And, honestly, I don’t care.) Instructions for Linux would be fairly similar, but you’d do it in a Terminal window and there’d be some sudo involved. (Actually, you can do that on a Mac too. I’ll give those instructions at the end.)

Now then. Open a Finder window and press Command-Shift-G. In the box, type /etc/hosts and click Go.

This will take you to the “hidden” /etc directory (part of the Unix subsystem) and highlight the hosts file, which is what you need to edit.

But, you can’t do it here.

Files in the /etc folder are write-protected, but if you copy it to your desktop, you can edit it. So, drag it to the desktop. (Note that since it’s a protected system file, just dragging it to the desktop will make a copy, rather than moving it.)

Double-click the hosts file on your desktop. It should open in TextEdit. (If you’re asked to pick a program, pick TextEdit.)

Place the cursor at the bottom of the file and add these lines:

127.0.0.1 facebook.com
127.0.0.1 www.facebook.com
127.0.0.1 twitter.com
127.0.0.1 www.twitter.com

So what’s happening here? Well, the numbers are IP addresses, which are the true addresses of every device connected to the Internet. Domain names (like twitter.com) are essentially “aliases” for IP addresses. Normally your computer connects to a DNS server on the Internet to look up these associations. But before it does that, it checks this hosts file. If a domain is in there, it doesn’t bother checking any further. And 127.0.0.1 is a special IP address associated with the fake domain name localhost — basically, it’s the computer’s self identification on the Internet. “Me” in other words.

There’s probably no web server running on your computer, so loading http://127.0.0.1 in a web browser will return… nothing. But even if you do have a web server running on your computer, it’s not Facebook or Twitter, so mission accomplished.

All right. Now that we have the hosts file updated, save it, and then drag it back into the /etc folder. You’ll get a stern warning from the system.

Click Authenticate. That gives you another annoying, but smaller, alert.

Click Replace. Now you have to enter your administrator username/password. Do that then click OK.

You’re done. (And note this time it moved the file from the desktop back into /etc. It doesn’t copy it like it did when you moved it to the desktop.) Now try loading Facebook or Twitter in your web browser!

Want to do all of this at the command line instead? It’s actually a lot easier, now that I think about it. These instructions should work for either Mac or Linux. Open a Terminal window. Type sudo nano /etc/hosts and hit Enter. Move the cursor to the bottom of the file and enter the lines I gave earlier. Press Ctrl-X then Y to save your changes. That’s all! Seriously!

Note: If you’re on IPv6 (if you even know what that is), you may want or need to use ::1 instead of 127.0.0.1.