Tableau and 4D: Deploy your WDC to Github Pages
In the How to connect Tableau with 4D blog post, you learned how to create a web data connector (WDC) to request data from 4D and visualize it in Tableau Public.
Now it’s time to host our WDC! Since it only uses HTML and JavaScript files, Github Pages is the best option to store them. This allows others to test your connector directly in their Tableau software. In this blog post, I’ll show you how to proceed.
Bonus: I’ll also show you how to debug your WDC in Tableau Public using Chrome. Let’s get started!
How to connect Tableau with 4D
In 4D Webinar – How to Connect Tableau with 4D, William Taylor (Technical Account Manager, 4D US) gave an overview of the Tableau tool and how it could be used to visualize your 4D data. In this blog post, we’ll dig into the technical details to give you a deeper understanding of how it works. This will allow you to build, for example, a visual showing the highest invoice total with nothing more than 4D REST and Tableau!
Extensive library of 4D applications available
With projects and the ability to share project application source code via a source control system, we’ve published more than 35 repositories to GitHub (at the time of writing this blog post). This includes HDIs, components, and full example applications. Speaking of full example applications, two more have recently been added:
Apple Silicon: The Next Generation of Mac Computers
At the annual Worldwide Developers Conference (WWDC2020), Apple announced the release of a brand new processor technology called Apple Silicon.
In this blog post, we’ll introduce you to this new technology and tell you about our plans to smoothly transition your 4D applications to Silicon.
4D Webinar – 4D Write Pro: Create a Lightweight Email Composer
Even during the lockdown, 4D continued to foster a sense of community through engaging content, interactive communications, and virtual gatherings such as webinars.
If you haven’t noticed, many of the 4D webinars presented by Will Taylor (Technical Account Manager, 4D US) have been made public on our Youtube channel.
The most recent one is related to 4D Write Pro and how you can create a lightweight email composer:
How to create a simple “TimeStamp” class in 4D
by guest author Tiran Behrouz, 4D developer (Vancouver, Canada)
The introduction of ORDA in 4D v17 was a game-changer. Now with the introduction of classes in 4D v18 R3, we will witness a paradigm shift in 4D programming. We can now take advantage of object-oriented programming concepts such as polymorphism, composition, and inheritance to write our own class libraries. In this video, I demonstrate how to code a simple TimeStamp class using 4D and ORDA.
Tips: ORDA Data Model Classes
By now you’re aware of the availability of ORDA classes. In this blog post, you’ll learn a few handy tips to get the most out of them!
4D Write Pro interface widget: Import & Export
You asked for a way to import and export different document formats via the 4D Write Pro widget and once again, 4D listened!
In addition to the 4D commands that already allow you to import and export documents in different formats, such as export .docx format with 4D v17 R4 and PDF format with 4D v18 R4. Now, 4D Write Pro can import and export different document formats via the widget from the toolbar and sidebar.
Pro list box features are now FREE!
Interested in building list boxes that can automatically adapt the height of each row to its content so that the full text or picture can be displayed? What about using object arrays in columns (this allows entering and displaying various types of values in the rows of a single list box’s column).
These are very cool features, right? Previously, you needed to have a valid 4D View Pro license in order to use them. Well, not anymore!
4D v18 R4 lets you access these features for FREE! No additional licensing is required, they’re now included in the standard product.
List boxes: Setup movable rows (or not!) by code
List boxes are powerful form objects. They’re easily created and manipulated, and most importantly, they can handle any kind of data. Additionally, they can be fully set up by programming … everything from inserting or deleting rows and columns, to defining or modifying tons of properties using the 4D language. With 4D v18 R4, another important property has been added to the list. Can you guess which one? Hint: read the title again.
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