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Smashing Conf Barcelona

You know, we use ad-blockers as well. We gotta keep those servers running though. Did you know that we publish useful books and run friendly conferences — crafted for pros like yourself? E.g. our upcoming SmashingConf Barcelona, dedicated to smart front-end techniques and design patterns.

Author:

Carlo is a freelance front-end designer and developer. In the last years he's been writing for ioProgrammo, an Italian printed computer magazine, and HTML.it, a popular design and development Italian website.

When he writes articles and tutorials, Carlo mainly deals with web standards, but when he plays with websites his best workmate is WordPress.

You can follow him on Twitter @carlodaniele.

Twitter: Follow Carlo Daniele on Twitter

Building An Advanced WordPress Search With WP_Query

Many WordPress superpowers come from its flexible data architecture that allows developers to widely customize their installations with custom post types, taxonomies and fields. However, when it comes down to its search, WordPress provides us with only one-field form that often appears inadequate and leads site admins to adopt external search systems, like Google Custom Search, or third-party plugins.

Building An Advanced Search System in WordPress with WP_Query

In this article I’ll show you how to provide your WordPress installation with an advanced search system allowing the user to search and retrieve content from a specific custom post type, filtering results by custom taxonomy terms and multiple custom field values.

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Customizing Tree-Like Data Structures In WordPress With The Walker Class

In WordPress, a navigation menu, a list of categories or pages, and a list of comments all share one common characteristic: They are the visual representation of tree-like data structures. This means that a relationship of superordination and subordination exists among the elements of each data tree.

Customizing Tree-Like Data Structures In WordPress With The Walker Class

There will be elements that are parents of other elements and, conversely, elements that are children of other elements. A reply to a comment depends logically on its parent, in the same way that a submenu item depends logically on the root element of the tree (or subtree).

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Building An Advanced Notification System For WordPress

A lot of tools enable us to distribute a website’s content, but when we need to promptly reach a target group, an email notification system might be the best option. If your website is not frequently updated, you could notify all subscribers each time a post is published. However, if it’s updated frequently or it covers several topics, you could filter subscribers before mailing them.

Building An Advanced Notification System For WordPress

If you opt for the latter, you could set up a user meta field that stores a bit of information to identify the subscribers to be notified. The same bit of information would label the posts you’re publishing. Depending on the website’s architecture, you could store the metadata in a category, a tag, a custom taxonomy or a custom field. In this article we’ll show you how to let your website’s subscribers decide when they want notifications, and linked to a particular location.

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