The DeepSee Shell Best Practices Series - Reset your DeepSee cache in the DeepSee Shell
This method is provided as a convenience for developers for use on development or test systems. You should not use this method on production systems as it will have immediate effect on the performance of end user operations.
If I have defined a class query in one of my classes and I want to use that query from a method of another class, what are the pros and cons of using the %SQL.Statement interface versus the %Library.ResultSet interface?
I'm trying to run a simple SQL query in atelier but it complains about the manager. I'm not sure if this is the best way to do it but here is what I got so far:
I have a tablepane in my Zen page that is tied to a class query. When the page first loads, the table is empty. A button onclick event causes the tablepane query to execute and load query results into the table. I want an onchange event from a datalistbox to clear the tablepane so that it looks empty as it was when the page first loaded. I have had no luck fiddling with javascript in the datalistbox's onchange.
A simple and rather automated search portal leveraging iFind capabilities for rich text search in 2016.1. It has simple faceting, result ranking, highlighting of search results etc and just works off any table you point it to that has an iFind index by appending ?t=MyPackage.TableName to the URL.
I need to perform additional checks before Cache user logins (let's say in a terminal for simplicity) and allow access only to those, who passed them. How do I do it?
This advisory concerns the recently announced vulnerability CVE-2016-0800, aka DROWN, which is due to weaknesses in SSLv2. For more information, see https://drownattack.com. This vulnerability may be relevant to InterSystems customers as InterSystems products have the capability to utilize SSLv2.
Can a Cache Mirror be used in the cloud ? (ie stand up a Primary and Backup member instances in a High Availability Cache Mirroring configuration)
I'm investigating the validity of this configuration, because I was of the understanding that this may not possible due to these cloud servers not (typically) having fixed ip addresses, which interferes with the Virtual IP settings for the mirror set.
Is this correct, and if there are workarounds (like Load Balancing ?) can I have details on how this should be configured ?
I just saw this new posting by Mike Kadow on the "Caché, Ensemble, DeepSee" Google Group announcing the availability of his new book, "Caché and MUMPS - Part II"
I am pleased to announce the next 2016.2 field test kit, 2016.2.0.609.0.
This is a relatively light update with only a few dozen changes from the previous field test, spread out across all areas of the product. Also, in a break from the recent past, this update doesn’t contain any new fixes to problems found in the field.
Please download the kit and give it a try; the latest field test of 2016.2 is available HERE. And, as always, we welcome your feedback.
There have been a few use cases recently within InterSystems where we've needed to connect to Caché-based web services from PHP. The first of these was actually the Developer Community itself, which uses web services as part of Single Sign-On with other InterSystems sites/applications. The following example demonstrates how to connect to a Caché-based web service (particularly, the web service in the SAMPLES namespace) from PHP, using password authentication.
When developing or maintaining Caché Objects applications, or even ones written in plain COS code, it's sometimes useful to investigate dependencies. Yuzinji is a tool that analyzes the Caché class dictionary plus the COS code within methods and routines, then feeds its results into Structure101g Studio.
We are beginning a project to switch over to a differnt EMR for our inpatient system, and we are wondering if others out here have worked on a similar project and how did you handle your Ensemble environment?
Currently, we use one namespace for all of our HL7 interfaces. Has anyone used a separate namespace for a project to keep the build separate until go-live? What were the pros/cons for you using a different namespace? Or did you use one and what issues did you have because of it?
February 25, 2016 – Alert: Incorrect SQL Results
InterSystems has corrected a defect that can cause incorrect results for certain SQL INSERT, UPDATE, and DELETE statements.
This defect is present only in Caché and Ensemble 2015.2 and HealthShare distributions based on them. The problem affects all platforms.
Incorrect results occur only when two or more of these statements are nested within each other.
The example below demonstrates one possible way for this problem to happen:
When my COS code is executing in a Caché process it might want to interact with the host operating system. For the purpose of this post I'm focusing on a Windows host, but much of it applies to other host OS platforms as well.
A common example of host OS interaction is when my process wants to read from or write to a file. What credentials will apply when Windows is checking whether or not to allow me access to the file?
To answer that we need to consider another question. How did our process start?
If you've got more than one developer on a project, do you each work in your own namespace? Or do you all use a common namespace?
Through my work at George James Software I have encountered many different Caché and Ensemble development setups. At risk of over-generalizing, the older and more established users of InterSystems technologies seem more likely to have all their developers working in a common namespace, whereas the newer 'converts' tend to favour giving each developer their own namespace.
As I know Atelier sources already on github, but I think in private repository. May you say when this project will be opened, and how about if I want to contibute to this project?
I have programmed this over a hunch, in order to facilitate the retrieval of source code from a Caché installation. It makes use of the Java API provided by Caché.
Right now, I use it as a means to salvage sources in order to analyze them using the SonarQube plugin I develop for my employer. Unfortunately this plugin is not open source.