Compute statistics on entity selections with ORDA
ORDA provides a great feature to channel data through filters and get aggregated values, by including a set of easily-understood aggregation operations that examine and perform calculations on the data sets. For example, the sum, average, count, min, and max methods are used to perform the operations which their names describe!
A+ security ranking for 4D web sites
After introducing Perfect Forward Secrecy, the security level of 4D Web server has been increased again with the support of HTTP Strict transport Security (HSTS). Henceforth, 4D Web server is compliant with the very latest security protocols. Simply upgrade to 4D v17 and enable HSTS to get the A+ ranking (the highest level) from SSL Labs for your web sites!
4 different ways to find items in a collection
As a developer, you often need to know whether a specified item already exists in a collection, or to find all the items corresponding to particular criteria. 4D collection methods offer many different ways to look up specific items.
Query collections
Simplicity is the ultimate sophistication, and with over 40 methods in 4D v16 R6 to manage collections, things are getting much easier for you as a developer. Not only is your code clean and more readable, but its also written in record time!
In this blog post we’ll take a look at how the two new methods, query and indices, will allow you to manipulate and retrieve items from a collection in a snap!
Calculations in collections
Calculate average, total or price (including tax) are common tasks in any business application. Collections are an easy way to aggregate your data in a consistent way. With it, this type of calculation becomes very simple, because there are collection methods that do everything for you!
Combine and sort collections
4D v16 R6 opens a wide range of possibilities to manage collections. Merging two collections into one, cloning or just ordering a collection is as easy as calling a method. It saves valuable time, for example, when you need to concatenate two collections, keep only the distinct values, or sort it.
Autocomplete function expanded to object attributes
Object notation opens new possibilities! To help you adopt this way of coding, we have improved the autocomplete mechanism of the method editor. Whenever you type a dot after an object, you will now get a list of suggested attributes. Just what you need to speed up your coding!
Convert collections
4D v16 R6 provides advanced capabilities to manipulate collections, thanks to 40+ methods to be used with Object Notation. By using them, you’ll be able to write your code in a more efficient way. New code is great, but we also kept in mind that this new code needs to easily integrate with your existing code. This is why we’ve introduced dedicated commands to convert collections to arrays or strings, and vice-versa.
Using path elements in objects
4D is making your developer’s life easier with two new commands to effortlessly manage file or folder paths. Save valuable time with the Path to object command which, in a single line of code, extracts the extension, the file name or the parent folder. Then you can modify and recombine the different object attributes to compose a new path with Object to path.
Insert or remove elements from a collection
Adding and/or removing elements to and from collections are common programming tasks that developers often encounter. 4D v16 R6 provides over 40 collection methods, including methods specifically dedicated to the addition and removal of elements in a collection. With these methods, you can easily create a stack (FIFO) or queue (LIFO), add new elements at any position, and much more…
Contact us
Got a question, suggestion or just want to get in touch with the 4D bloggers? Drop us a line!
* Your privacy is very important to us. Please click here to view our Policy