4D for iOS: Push Notifications
4D v18 R4 delivers a very exciting feature … Push notifications. These are messages sent directly to the user’s mobile device from your app. Push notifications provide users with relevant information to encourage them to engage with an app. As of this feature release, 4D for iOS not only allows doing so but also allows you to do it with ease!
For email authentication, 4D for iOS also makes your life easier.
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!
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.
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!
4D v18 R4 Beta Starts Today
4D is pleased to announce the launch of beta testing for 4D v18 R4.
4D v18 R4 is one of the best Feature Releases ever delivered! I’m so thrilled to share all of the advances we’ve added to the ever-growing list of 4D features.
Without further ado, let’s get a sneak peek at the 20+ new functionalities waiting for you:
- ORDA classes make their first appearance to enable business-oriented code so you can hide complexity, reduce errors, and speed up the development process.
- A CryptoKey class is available to protect the confidentiality of your data, as well as verify the integrity of messages and the authenticity of senders.
- The 4D developer toolkit is bursting with additional features including a new declaration syntax for intuitive autocompletion, easy access by code to the values of form objects, and the ease of developing and debugging server code in project applications … just to name a few.
- More exciting features are included with 4D for iOS for even more engaging apps, more UI possibilities, and more control over access to your app.
- You asked for it, you got it! 4D Write Pro can import and export different document formats via the widget, as well as direct export to PDF while supporting hyperlinks, image size optimization, and more.
- You no longer need a 4D View Pro license to use pro list box features. They’re now FREE!
- 4D View Pro also has a whole new set of commands to give you further control over your documents.
- 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.
- And much more (see below).
4D v18 R3 is Here
I’m thrilled to announce that 4D v18 R3 is now available!
4D v18 R3 is one of the most jam-packed feature-releases ever delivered. It also marks the beginning of a very important step in the world of 4D programming with the addition of object-oriented programming.
To whet your appetite, here’s a sneak peek of what’s in store for you:
- The 4D language has taken a giant leap with the introduction of classes which allow you to write modular, reusable, and easily maintainable code.
- ORDA is brimming with new advances as well: for example, you don’t need to restart your database in order to have an up-to-date datastore when the structure is updated. Additionally, a single line of code is all you need to select rows for an entity selection.
- 4D Server’s monitoring set has been enhanced with an additional feature so you can get all operations executing beyond a specified time and other useful information.
- The development possibilities have been expanded even further with additional standard actions for the 4D Write Pro interface.
- 4D for iOS provides you 40+ ready-to-use templates. You only need a single click to download them directly from the project editor and get started making the perfect custom app for your needs.
- Run multiple web servers in a single 4D instance, take advantage of new method and components documentation, use an offscreen web area on a headless server, explore the advances we’ve brought to XPath, more options to customize 4D View Pro worksheets, this is all just a glimpse of what’s available in 4D v18 R3 for you.
Project Databases: Method documentation is back
When developing an application, it can be very useful to have quick access to the details of a method (e.g., an explanation of what it does, its syntax, and a definition of the parameters passed to it). This becomes even more important when using a compiled component. You can’t look at the content of the method, so you can only rely on its documentation to understand how to use it.
The Explorer’s dialog has been enhanced and documentation is now available in 4D v18 R3 for project databases.
Object-oriented programming in 4D: Manage class inheritance
In a previous blog post, we introduced a very important concept in object-oriented programming: Classes. Now we’ll go through another core concept: Inheritance, the mechanism that allows a class to acquire the behavior of another class.
ORDA: Breaking news for entity selection methods
When it comes to ORDA, 4D v18 R3 is full of good news! New member methods are at your disposal to further enhance your coding experience.
For starters, extracting data from an entity selection has been greatly enriched allowing you to build a fully customized collection with your entity selection data.
In addition, we’re providing you a way to indicate to an entity selection that its data needs to be refreshed from the server immediately, invalidating cached data.
Interested in some details? Keep reading, everything you need to know is below.
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