ORDA Data Model Classes and REST
In a previous blog post, you learned about ORDA classes and the possibilities they offer to make your coding experience smoother. In this blog post, you’ll see how to use them with the REST server.
Let’s see it in action!
Server code development in project applications
Developing and debugging server code in project applications has become easier than ever in 4D v18 R4. Without further ado, let’s take a look at how to do it.
Access form object values by programming
An increasing number of developers are using the Form command to link their form objects and many of you require easy programming access to the values of those objects. So, to help you access the value of a form object, regardless of its variable or expression, we’ve added two new commands: OBJECT Get value and OBJECT SET VALUE.
Let’s see how to use them!
4D for iOS: Email authentication
Monitoring access to your mobile app is a very important capability that deserves further consideration. Email validation is one of the simplest and most secure ways to determine the authenticity and legitimacy of the person trying to log into your app. 4D for iOS enables you to easily handle this validation process by verifying that an email comes from whom it claims to be sent from, and by allowing you to block harmful uses of the email.
4D View Pro: Offscreen Areas
Want to dynamically generate 4D View Pro documents on a server and, for example, send them by email or calculate values? 4D v18 R4 introduces a new command to manipulate 4D View Pro commands in an offscreen area: VP Run offscreen area.
ORDA Classes to handle your data model
In a previous blog post, we introduced you to the world of ORDA data model classes. Now it’s time to get our hands dirty and learn more!
You already know that ORDA‘s structure (datastore, dataclass, entity, entity selection) is made up of objects. But they’re not just objects, they’re strongly-typed objects linked to specific ORDA classes. This means that you can write functions to hide the complexity of your data’s physical implementation.
Welcome to the world of ORDA classes
ORDA was a revolution with 4D v17. It opened a whole new world of possibilities and took you to another programming dimension. A dimension where you can easily develop applications using an object-oriented approach.
We didn’t stop there! We continued to add enhancements to ORDA through a set of features in each subsequent feature release. Now with 4D v18 R4, we’re thrilled to be going another step further with the availability of ORDA data model classes. Classes dedicated to your data model.
This will greatly elevate your code. Your applications can now easily expose services, be more manageable and easier to maintain, and seamlessly integrate with other applications.
This is another big feature made possible thanks to the projects!
Project by default. Binary on demand
Projects were introduced in 4D v17 R5. An architecture representing a giant evolution for 4D applications, projects opened the 4D world to source control tools, collaborative programming, code sharing, modularity, and much more! To make things even better (and simpler), 4D v18 R4 creates new projects by default, while developers – if they choose to do so – can continue to create binary databases via a simple setting.
Project Databases: Build your own documentation for components
In a previous blog post, we showed you that documentation for methods has returned in the Explorer. Want to take things even further and use them as documentation for your components? In this blog post, we’ll show you how!
Use an offscreen web area
Do you need to load web pages, extract metadata, or generate pictures from the contents of pages on a headless server? If you answered “yes”, then you’re in luck because 4D v18 R3 makes it possible! Now you can create an offscreen web area with the WA Run offscreen area command.
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