offers the latest features and bug fixes. It now updates your installation of Atelier to build 1.1.291 for Mac, Windows, Red Hat and SUSE. Here’s an account of what’s recently been improved:
Recently I was conducting a remote support session with a site. The desktop they were sharing with me was on a PC configured with German as the native language. Since my German is rather rusty, and virtually non-existent when it comes to computing terms, I was glad to be able to switch the Portal session into English.
This is done from the page that appears when you use the About link:
In addition to its general security, Caché offers SQL security with a granularity of a single row. This is called row-level security. With row-level security, each row holds a list of authorized viewers, which can be either users or roles. By default access is determined at object modification Some time ago I became interested in determining row-level security at runtime. Here's how to implement it.
This is a translation of the following article. Thanks [@Evgeny Shvarov] for the help in translation.
Someone posted a question on DC asking whether it was possible to determine access rights for a particular table row always at runtime, and if it was, how could one do that? Answer: it is possible and it’s not hard at all.
I needed to use the OnGetNodeInfo callback of a Zen <dynaTree>, because this seems to be the only way to control the style separately for different levels of the tree. This post describes two discoveries I made.
How a dynaTree builds a tree via the OnGetNodeInfo callback
When you use a dynaTree with the OnGetNodeInfo callback, the dynaTree creates a series of nodes and displays them top to bottom in the order they were created.
In our last lesson, we implemented a linkage to our WidgetAccessory class, and debugged some errors we encountered along the way. We now have our data being returned by REST, but what if we want to update or add new data to our application?
We left our application over the weekend, secure in the knowledge that it was returning data from our primary persistent class, User.Widget. However, Widgets Direct are the premier supplier of both Widgets AND Widget Accessories, so we should really start working on adding these Accessories to our application.
During a Caché system management training course today we discussed structural database integrity (a.k.a. physical integrity) and the tools InterSystems provides for checking integrity and fixing problems.
Today I helped someone solve a mystery. He had been trying to use the -U namespace argument of a csession command to specify the namespace in which to run a particular routine, and was puzzled when the routine could not be found.
The Data Platforms department here at InterSystems is gearing up for this year's crop of interns, and I for one am very excited to meet them all next week!
We've got folks from top technical colleges with diverse specialties from hard core engineers to pure computer scientists to mathematicians to business professionals. They come from countries around the world like Vietnam, China, and Finland and they all come with impressive backgrounds. We're sure they will do very well this summer.
If you are looking to breathe new life into an old MUMPS application follow these steps to map your globals to classes and expose all that beautiful data to Objects and SQL.
This example is going to cram in 4 or 5 different things beyond what was covered in Part 1
Most frameworks support either REST or WebSockets, and don't make it easy to switch between the two, and/or support both styles of application at the same time. WebSockets offer many advantages over REST, eg:
- most benchmarks show WebSocket messaging to be significantly faster than over HTTP
This is a translation of the following article. Thanks @Evgeny Shvarov for the help in translation.
Let's assume that you wrote a program that shows "Hello World!", for example:
write "Hello, World!"
The program works and everyone is happy.
With time, however, your program becomes more complex, gets more features and you eventually need to show the same string in different languages. Moreover you don't know the number and names of these languages.
The spoiler below contains a description of how the task of multi-language localization is solved in Caché.
Most of you should be aware that the Wanna Cry virus is massively infecting un-patched windows machines all around the world. It's particularly affecting the NHS, one of my main clients.
Wanna Cry is one of a line of Viruses that exploit SMBv1 over ports 135 and 445.
A kill switch has been enabled, but this won't protect machines sitting behind http proxies, and there are already reports of new versions without a kill switch.
All windows machines should be isolated and updated a.s.a.p.
In our last lesson, we added some formatting and validation to our Edit Widget form. So, now we are ready to add the ability to add new Widgets to our application. However, the great Widget Wars have come to an abrupt end, as Widget Direct has purchased its biggest competitor, WorldWideWidgets. In order to maintain some continuity, we need to display their catalog on our new application.
It's almost a year since I have published a series of articles explaining how to configure Cache instance as a client / resource server / authorization server. By that time, the implementation of OAuth 2.0 was still a pre-release software.
In our last lesson, we added a form to Edit our existing Widgets, and save them back to the server. However, our Form was not well structured and our Save button had no intelligence, and was not fully visible. So today, we will apply some Material components and Angular style to make the form more useful
Created by Daniel Kutac, Sales Engineer, InterSystems
Part 3. Appendix
InterSystems IRIS OAUTH classes explained
In the previous part of our series we have learned about configuring InterSystems IRIS to act as an OAUTH client as well as authorization and authentication server (by means of OpenID Connect). In this final part of our series we are going to describe classes implementing InterSystems IRIS OAuth 2.0 framework. We will also discuss use cases for selected methods of API classes.
The API classes implementing OAuth 2.0 can be separated into three different groups according to their purpose. All classes are implemented in %SYS namespace. Some of them are public (via % package), some not and should not be called by developers directly.
Say you have a global in one database that you instead want to map from a different database. If you just create a global mapping to the new database, the existing global will become inaccessible because it still lives on the old database. The documentation notes this problem here but doesn't give details on how to fix it.
Prompted by this post about accessing a global at its original location after you have changed a mapping, here's a tip about one specific dropdown in Portal that's sometimes useful.
We finished our last lesson with our Widgets Direct page iterating over a list of widgets, displaying an ID and a Name value. While we have been able to achieve this with only a small amount of coding, the page itself is not the most visually appealing place to be. The AngularJS framework is providing a powerful Model-View-Controller framework for our structure and logic, but it does not implement anything that will provide a nice UI experience.
If your application is raising <PROTECT> errors and you're finding it hard to work out why, here's a way to get additional information.
First, if auditing is not already enabled, turn it on:
Then use "Configure System Events" (highlighted above) and locate the event named %System/%Security/Protect. In the screenshot below I used the Filter field to do this (type "protect" - highlighted below - and press TAB):
At the end of our last lesson, we ended with our page displaying a nice (but garish) Angular Material Toolbar, and our Widget data displaying in a list of Material cards. Our page feels a bit static, and we already know that the large number of Widgets that we will be dealing with will not be especially usable on a static list. What can we do to help?
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