Exercise 9: Pattern with react

Warning

This exercise requires a working buildout using a fork of the collective.jstraining package.

In this exercise, we’ll be walking through creating a pattern that uses ReactJS.

We will be working in the exercise9 directory of the collective.jstraining package.

Add your pattern file

First off, in your exercise9/static directory, add a file named pattern.js. Use this file to build your pattern. This example will bind a React component to a pattern element:

/* global require */

require([
  'jquery',
  'mockup-patterns-base',
  'exercise9-react'
], function($, Base, R) {
  'use strict';
  /* combining bundle and pattern in same file this example */

  var D = R.DOM;


  var Exercise9Component = R.createClass({
    render: function(){
      return D.div({}, [
        D.span({}, 'Foobar rendered by exercise 9')
      ]);
    }
  });

  Base.extend({
    name: 'exercise9',
    trigger: '.pat-exercise9',
    parser: 'mockup',
    defaults: {
    },
    init: function() {
      var that = this;
      R.render(R.createElement(Exercise9Component, that.options), that.$el[0]);
    }
  });

});

Notice that the init of the pattern utilizes the React element binding syntax. From there, react takes over and options from the pattern go into props for the React component.

Register static resource directory

Next, let’s register the static directory we just placed our script into. To register, you need to add ZCML registration for the static directory your script is in. Add this to the exercise9/configure.zcml file:

<plone:static
     directory="static"
     type="plone"
     name="exercise9"
     />

Register your bundle

Registration is done exactly like the other examples:

<records prefix="plone.resources/exercise9-react"
         interface='Products.CMFPlone.interfaces.IResourceRegistry'>
  <value key="js">++plone++exercise9/react.min.js</value>
  <value key="css">
  </value>
</records>

<records prefix="plone.resources/exercise9"
          interface='Products.CMFPlone.interfaces.IResourceRegistry'>
  <value key="js">++plone++exercise9/pattern.js</value>
  <value key="css">
    <element>++plone++exercise9/pattern.less</element>
  </value>
</records>

<records prefix="plone.bundles/exercise9"
          interface='Products.CMFPlone.interfaces.IBundleRegistry'>
  <value key="resources">
    <element>exercise9</element>
  </value>
  <value key="merge_with">default</value>
  <value key="enabled">True</value>
  <value key="jscompilation">++plone++exercise9/exercise9-compiled.min.js</value>
  <value key="csscompilation">++plone++exercise9/exercise9-compiled.css</value>
  <value key="last_compilation">2016-10-04 00:00:00</value>
  <value key="stub_js_modules">
    <element>jquery</element>
    <element>mockup-patterns-base</element>
  </value>
</records>

Installation

At this point, we have all the files necessary to run the pattern.

1. Start up your Plone instance
2. Install the Exercise 9 add-on

Running

At this point, we have no compiled version of the code that we’re running with so our code doesn’t do anything.

1. Go into Site Setup -> Resource Registries
2. Check “Development Mode”
3. Select to develop JavaScript and CSS for the exercise9 bundle
4. Click save

This should load your JavaScript and LESS files now; however, we don’t have any elements with the pat-exercise9 class assigned to them.

It’s up to you how to apply the pattern class to an element of your choice. A couple options available to you are:

1. use TinyMCE source view and add class="pat-exercise9" onto any tag
2. customize the theme on your site and add it to an element in your theme file or use a diazo rule diazo rule to dynamically add the class to an element

Production

To build our bundle, we’ll utilize the plone-compile-resources script that Plone ships with.

Warning

If you’re not running a ZEO setup, you’ll need to shut down your Plone instance since the ZODB in this mode does not allow multiple processes to access it at the same time.

An example command will look like this:

./bin/plone-compile-resources --site-id=Plone --bundle=exercise9

Once this command finishes, your bundle is built and will be deployed with your package package.