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Dmitry Maslennikov · Feb 17, 2016

There are some ways to concat values in a cloumn in Caché: CONCAT and STRING.

CONCAT concatenates two strings to return a concatenated string. You can perform exactly the same operation using the concatenate operator (||).

STRING converts one or more strings to the STRING format, and then concatenates these strings into a single string. No case transformation is performed.

Dmitry Maslennikov · Feb 16, 2016

Cool markdown, is nearly here.
Well, but it is not so clear, that Disable rich-text, means markdown.

But there are some errors, in markdown.

~~strikethrough~~, >! spolier    does not work at all,

A [link](http://example.com). shows as  

 

When I press Preview button, in editing new post, after reload, editor opens in rich-mode and brakes all my markdown. And I think we need preview button, or live preview for markdown in comments.

Dmitry Maslennikov · Feb 16, 2016

You can calculate such property on a class side, something like this. Index by CitizenRef and RelocationDate, and method which looking for the next date, and returns true if nothing found.

Index CitizenRelocation On (CitizenRef, RelocationDate);

Property IsLastKnownRecord As %Boolean [ Calculated, SqlComputeCode = {set {*}=##class({%%CLASSNAME}).IsLastKnownRecordCheck({CitizenRef}, {RelocationDate})}, SqlComputed ];

Method IsLastKnownRecordGet() As %Boolean
{
    quit ..IsLastKnownRecordCheck(i%CitizenRef, i%RelocationDate)
}

ClassMethod IsLastKnownRecordCheck(CitizenRef As %Integer, RelocationDate As %Date) As %Boolean [ CodeMode = objectgenerator ]
{
    set storagename="Default"
    set storageInd=%class.Storages.FindObjectId(%classname_"||"_storagename)
    set storage=%class.Storages.GetAt(storageInd)
    set indexLocation=storage.IndexLocation
    set indexLocation=$name(@indexLocation@("CitizenRelocation"))
    do %code.WriteLine($c(9)_"quit $order(@($name("_indexLocation_"))@(CitizenRef, RelocationDate))=""""")
    quit $$$OK
}

And result you can see below

Dmitry Maslennikov · Feb 15, 2016

When macrocomment appeared in the same line with continue, next line will be marked as an error

for i=1:1:10 {
  continue:condition ##; comment
  set a=1
}

 

Interesting example I've found in Ens.Util.Time
                GoTo $Case(spec
                ,"a":getWeekdayAbbrev
                ,"A":getWeekdayFull
                ,"b":getMonthAbbrev
                ,"Z":getTimezoneName
                ,:getX)
 

Dmitry Maslennikov · Feb 15, 2016

I just have found that $system.OBJ.Load() supports loading in an UDL format. And found $system.OBJ.ExportUDL() which can export classes and routines in UDL format. So, it means that we can easily organize work in Studio and in Atelier at the same time. What we should, it is to export all files in Studio hook at the same manner as it doing Atelier.

With this new possiblility, will be much easier to migrate from Studio to Atelier.
Thanks.

Dmitry Maslennikov · Feb 12, 2016

Ok then, how to manage to get it worked with REST in Caché. For example. My application uses REST dispatch class for csp application. This class returns static files from disk in development, or from XData in production. And then I need to use WebSocket as well, but all requests catch by REST class. And in REST route map, i want to have path '/websocket', and send it to my WebSocket class.

Dmitry Maslennikov · Feb 8, 2016

Unfortunately not so many information could be found in documentation, yet. But what I know, when ordinary class/classmethod or clientmethod defined in %Dictionary.MethodDefinition, systemmethod defined in %Dictionary.SystemMethodDefinition (link to localhost:57772). Defintion for systemmethod is quite close to method, but with much less parameters.

Dmitry Maslennikov · Feb 1, 2016

Hi Luca,

Will there any academic sessions at global summit with Docker ?
I think it should be, it will be very helpful, to understand how it works with Cache, how possible to deploy applications. I like docker, and think about it, but still do not understand how it can be used with our applications, and how to make container for it, and connect to Cache's container.