In a previous lesson in this series, we set up a content type for our product reviews. Now, we’re ready to add a field to store a link to the product on Amazon.com. In this lesson we'll:
- Enable and configure the Amazon module
- Get our Amazon key
- Add the Product Field
Note that Amazon changes the way they manage keys over time, so the way they are generated in the lesson may have changed. Please review the official AWS Product Advertising API documentation for current key generation instructions.
Additional resources
Giving visitors a chance to evaluate and rate content is an extremely common pattern on content-rich websites. In addition to giving visitors a way to jump to the best content, it can give you a way to determine what content on your site is most effective. In this lesson we'll discuss:
- Voting API module
- Fivestar module
Additional resources
For the Super Duper Chefs site, we’ll be using both of the Fivestar module’s unique features: adding a static Rating field to the “Product review” content type for the editors to use, and attaching a voting widget to the comment form on each review for the site readers to use. That approach will keep the official rating on each review separate from the reader ratings. In this lesson we'll:
- Add the Product Rating Field
- Add the Reader Rating Field
Additional resources
Drupal’s theming system gives designers complete control over how a site’s content is rendered for a web browser, and custom themes can give any site a distinctive look. But sometimes it’s useful to make minor tweaks to a site’s appearance using nothing but CSS rules. They allow designers to tweak font sizes, colors, and so on without altering the underlying HTML that defines the site’s structure. In this lesson we'll look at:
- CSS Injector module
- Explain how this works
Additional resources
Although our “Product review” content type has all of the data we need, the individual reviews still look a bit untidy. In this lesson, we’ll do some final tweaking to make the review display look nice and tidy.
- Setting Field Display Options
- Configuring CSS Injector
Additional resources
Now that we have a few products, we really ought to add a listing page that lets visitors look over all of the products that have been reviewed, comparing official ratings with visitor ratings and sorting by various criteria. This is a perfect job for Views. In this lesson:
- Create a Product Finder view
- Display Amazon information
- Display voting results
Additional resources
In this video we'll look at adding yet another field handler, but in this instance we will be adding a Views field that does not directly map to an actual field in the database. Instead we will be creating our own variation on some data and adding it as a field that can be used in our views — a field that shows the percentage of page views as a black bar graph.
One of the most common things to do with Views is export a view from your site and store it in code as a default View. This is what Features module does when you create a feature with a view in it. In this lesson we'll export our sample site's view and add it to our module with hook_views_default_views().
In this video Joe will walk through writing a custom field handler for views. Demonstrating how to extend the set of handlers that come with the views module in order to provide new functionality or for dealing with new types of data. In this case we'll look at how to treat the numerical values in the databasics module as percentages in views. The method used to write a field handler in this video is similar to overriding other handlers like filters and sorts that will be discussed in coming chapters and provides some important foundations for understanding how to work with all views handlers.
Additional resources
In this video Joe looks at using hook_views_data() in order to describe a database table to views such that views is capable of making queries to that table. We’ll talk about describing the table itself, and how to get it to appear in the views UI as an option that can be used as a base table.
Additional resources
Modules Needed
This video continues the process of adding a custom field handler started in the previous chapter.
Additional resources
In this video Joe continues the discussion of using hook_views_data() to describe a module's table to the views module. Building on what was covered in the previous chapter we now deal with exposing one of the individual columns from our table as a field that views can use for filters, sorts, and to display.
Additional resources
Modules Needed
In this chapter Joe will take a look at where to get a copy of the databasics code and what it does already. Throughout the rest of this series we will be working towards replacing functionality from the databasics modules with views integration in order to allow for greater flexibility in the ways that our module can be used. We'll talk about each of this pieces of functionality in this chapter.
Additional resources
Databasics module on GitHub
Overview of the Database Layer in Drupal 7
To get things started, in this lesson we'll create a new module, and use hook_views_api() to let Views know we want to use its API.
In this lesson, we give a brief overview of utilizing a very important feature when it comes to working with Drupal and that's Drupal.org. We show you how to get to the Views API documentation that is now part of Drupal's API documentation and teach you how to use the search function for finding particular function.
Additional resources
This chapter shows how to create a basic Rules action. It covers:
- The role of the module.rules.inc file
- Using hook_rules_action_info
- Writing action callbacks
This series covers the basics and some more of how to write your own plugins to extend the Rules module. It includes:
- A conceptual overview of the Rules modules
- Writing action plugins
- Managing rules data as parameters for Rules plugins
- Writing conditions
- Writing and invoking Rules events
This intro chapter contains a quick presentation of the Rules module from a conceptual perspective. It includes:
- Actions, conditions, events
- Data types: the importance of entities, relationships and tokens
- Lists and loops
- Components and parameters
- Some words about the Rules user interface
If you would like to see more about configuring Rules before continuing this series on writing code to integrate with the Rules module, you can watch the Learning the Rules Framework series. Note that Johan is using the Module filter module to provide the tabs and filter box on his module administration page.
Area handlers are used in the header, footer and empty text areas when creating a View. In this lesson, we’ll walk through creating our own area handler that can be placed in the footer to provide a summary of all the rows in our View.
In this lesson, we’ll take a look at how to modify the HTML output from Views, explore some of the default templates that Views provides, and learn about the various permutations of names we can give our template files to override output for everything from a large set of Views to a single field on a single View. We’ll also discuss the difference between displays, styles, rows, and fields when it comes to theming a View.