Category: Notes (Page 23 of 50)

A couple of weeks ago, I shared a simple gist for how to programmatically add post terms in WordPress. If you’ve read the series on importing CSV files into WordPress, then you’re likely to encounter something like the following scenario:

Given a CSV, apply multiple terms to a single post when the terms are delimited by another character.

So, for example, let’s say that you have a CSV and each value is, naturally, separated by a comma. Within one of the columns, words – or terms, in our case – are delimited by semicolons. Each value that precedes a semicolon represents a term (related to any given taxonomy in the system – this is irrelevant for this particular post).

Adding multiple terms to a post, or post type, is relatively simple and can be based off the functionality already shared.

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Importing CSV files (or something similar) is something that’s nothing new to web development.

If you’re writing a server-side code that’s responsible for importing a file in the context of WordPress, then you can be doing anything from programmatically creating posts to creating more complex relationships among post types, taxonomies, and so on.

In this case, it’s nice to have an abstract function that can help to do a lot of the repetitive work for you. After all, aren’t functions specifically for that?

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Almost everyone who has worked with WordPress has dealt with wp-config.php. I know – there are a lot of managed hosts out there that take care of a lot of this for you – but even though a person may not have directly edited the file, they have definitely interacted with it.

For those who are unfamiliar:

This file is located in the root of your WordPress file directory and contains your website’s base configuration details, such as database connection information.

Anyway, for sometime now, I’ve been working on a relatively large plugin for a client and have recently taken to introducing a similar type of configuration files. So this raised that question, do what you think of plugin config files?

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One of the common things that I’ve seen – and personally done – is mismanaging $_POST data as it comes into the server-side from a form or some type of input element from the front-end. This may be in the case of sending data via Ajax or by doing a standard page refresh.

Chill Out, Veruca. We’re getting there.

Whatever the case, whenever you’re dealing with $_POST data in WordPress and you’re looking to save information into the database, there may be times where you’re interested in saving empty values, and there maybe times where you’re interested in savings values only if they are not empty.

If you’re going after the latter, there are a couple of safe guards you should introduce in your code to make sure that rows are only being written when there’s data to actually be written.

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In a couple of recent projects, I’ve been tasked with adding tabbed navigation to various WordPress templates. The thing is, these tabs work in such a way that all of the information is loaded on the page so when the user clicks on the tab, the contents of the page appear without having to do a page refresh.

In some cases, it may be best to load pages via Ajax, in some cases, it’s better to load things up all in the first page load. This particular post is about the best strategies for that (that’s a debate for another post).

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