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ORDA: work with objects and collections

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In this latest addition to the ORDA series, we’ll look at how the new ORDA concepts can interact with existing objects and collections. In fact, it’s possible to turn entities and entity selections into objects and collections, as well as build entities and entity selections from objects and collections. By doing so, you can easily integrate ORDA code within your existing code. You can take full advantage of ORDA without needing to rewrite your code!

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Going back and forth between current selections to ORDA

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ORDA is a major innovation of 4D v17, this is why we’re dedicating an entire series of blog posts to ORDA. While ORDA has its own concepts that are very different from the classic approach, it’s still possible to mix ORDA with your existing code.

In a nutshell, this blog post will show you how you can update the current selection of a table from an entity selection and get an entity selection from the current selection of a table. It’ll allow you to smoothly integrate ORDA concepts into your existing 4D code, step by step.

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Query your database with an object-oriented approach

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After learning how you can create, update, and delete data, here is a new entry in the ORDA series. In this post, you will see how you can query your datastore in an object-oriented mode. With ORDA, queries are lighter, more readable, and you can navigate through the whole data model using object-oriented concepts !

On top of that, ORDA makes it possible to very easily query several related tables, manage recursive relations on the same table, and use several logical operators in a single query. Plus, you don’t have to worry about setting relations between tables … manually or automatically !

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Create, update and delete data with ORDA

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4D v17 introduces ORDA, a major evolution in 4D which is opening a world of new possibilities for 4D developers. To learn more about ORDA and its benefits, check out this post to see how ORDA will change the way you work. In order to guide you through the ORDA exploration, we’ve prepared a series of blog posts fully dedicated to the core concepts and related features. This blog post will detail how you can perform CRUD operations on your database with ORDA. CRUD is an acronym for the four basic operations you can perform on data: Create, Read, Update, and Delete.

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How ORDA will change the way you work

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Imagine a way of using your database with an object-oriented approach, without worrying about its physical structure. Imagine that you could maintain multiple current selections at the same time or that you could perform recursive queries in a single line of codeWell, this is now a reality thanks to ORDA! With 4D v17, your code can be written in an object-oriented mode, and you can easily navigate through your entire data model.

ORDA was one of the major announcements of 4D Summit 2018, opening a world of new possibilities in 4D. It’s now time to give you more details about the ORDA features available with 4D v17. To do so, we’ve prepared a series of blog posts dedicated specifically to ORDA core concepts and related features. And we’ll release them, one after another, day after day.

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Discover the power of dynamic forms

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You’ve told us how much you want a feature to dynamically build forms fully adapted to your end users’ needs. Well, we heard you, and 4D v16 R6 now opens new opportunities with dynamic forms! Provided as a preview in 4D v16 R6, dynamic forms allow you to programmatically build your forms in an object or load them from a text file. But this only scratches the surface of what we’ve cooked up for you…

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A wide range of possibilities to manage your collections

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4D v16 R6 provides advanced capabilities to manipulate collections, thanks to a series of methods to be used with Object Notation. Over 40 methods are now available, which allow, for example, the ability to add or remove elements in a collection, sort it, search the elements in it and much more! There are so many new possibilities that it is impossible to present them in a single post. This post is the first of a series you don’t want to miss…

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Dates inside objects!

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Objects are great! Their flexibility, combined with speed and elegance, make them a first choice for most developers. Using dates inside objects is now easier and more intuitive. From now on, dates can be set as datesand not strings inside objects!