Developing a site in ProcessWire

  • Cheatsheet
    A quick reference of ProcessWire API variables, methods and properties – all on one page.

  • Concept
    ProcessWire’s API is inspired by jQuery and its style and syntax. Learn more about the concept behind the API here.

  • What is the API?
    ProcessWire’s API is a collection of variables, selectors, fluent interfaces and a modular plugin architecture. Read more about what makes up this API here.

  • Directories
    This section outlines ProcessWire’s default directory structure, highlighting the locations where your site’s files go.

  • Template Files
    Every time a page is loaded on your site, ProcessWire looks at what template is assigned to the page, loads it, gives it several API variables, and then runs it as a PHP script. This section covers the use of template files and serves as an introduction to using ProcessWire’s API with examples.

  • Variables
    ProcessWire provides these variables to every template which provide full access to the API.

  • Selectors
    A selector allows you to specify fields for finding a page or group of pages that match your criteria. Selectors in ProcessWire are loosely based around the idea and syntax of attribute selectors in jQuery.

  • Include & Bootstrap
    ProcessWire’s API and data can be used from other PHP scripts, including command line PHP scripts. It’s very easy to do, here’s how…

  • Syntax
    Previous versions of ProcessWire, as well as the CMSs that preceded it (like Dictator CMS) used a tagging syntax where you could reference a value in your template using a tag like {$title}. ProcessWire v2.0 works differently. Here’s why…

  • Hooks
    ProcessWire contains many methods that you may hook into in order to modify the behavior of the method. Hooks are typically attached by modules (most often autoload modules).

  • Plugin Modules
    Modules exist to enable a high level of extensibility and customization to an installation of ProcessWire. Modules are PHP files containing classes that adhere to ProcessWire’s Module interface.

  • Users & Access
    ProcessWire uses a role-based access-control system (RBAC). Users, pages and permissions are assigned to roles.Users inherit the permissions of their roles on pages that have the role enabled.

  • Arrays
    Nearly all collections of items in ProcessWire are derived from the WireArray. The WireArray interface is one you will be interacting with regularly in the ProcessWire API whether you know it or not. This page documents all of the methods that are common to all WireArrays.

  • Fieldtypes
    Fieldtypes are modules that define a data type and field used to hold content for pages. Every field used in your site has a defined type that originates from a Fieldtype module.

  • Multi-Language Support
    Supporting multiple languages with ProcessWire 2.2 and the Language Support modules.

Comments

  • Andy

    Posted by Andy on Feb 17, 2013 11:14 AM

    Hello.

    Your content-centered approach seems perfect for multi-channel-publishing.

    the queryable API ist great — but how about accessing the content from say an app? Is there REST-access or something, which is also queryable in that way?

    Outside PHP, from different clients?

    Thanks for the info

  • Stefan Wanzenried

    Posted by Stefan Wanzenried on Mar 17, 2013 6:52 PM

    Hi Andy,

    Maybe a bit late but just in case:

    There's a nice module from ryan called "Pages Web Service".

    You can send queries via GET and get responses in JSON.

    http://modules.processwire.com/modules/service-pages/

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