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John Murray · Mar 6, 2017 go to post

The "My Account" section already looks like it separates Subscriptions from Favorites, but currently the "MY FAVORITES" option goes to the "Saved Content" tab of a page called "My Content".

AFAIK the "Saved Content" tab is no longer operational in its original mode. But perhaps it could be useful for this case.

John Murray · Mar 3, 2017 go to post

Here are some initial suggestions / comments (no particular priority):

  1. Standardize on capitalization in naming. For example classnames EX.example and Sample.Classes, and property names name and Location.
  2. Use singular for your classname, e.g. Class rather than Classes
  3. Use meaningful classnames, e.g. Sample.Employee rather than Sample.Classes
  4. Use meaningful method names. e.g. insert or Insert rather than hello
  5. Avoid namespace switching unless really necessary. Presumably in your case the Sample.Classes class is in the USER namespace and the EX.example is somewhere else (maybe you wrote it in your SAMPLES namespace).
  6. For a REST interface, consider returning results in a structured form, e.g. JSON.
  7. Make good use of indenting. Perhaps you already have done this and the post to DC has mangled it.
  8. Avoid using Z-commands, $Z-functions and $Z if non-Z equivalents are available. For example, SET $NAMESPACE="USER" instead of ZN "USER". Note that you can also preserve the current $NAMESPACE value using NEW $NAMESPACE which will automatically reinstate the value when the stack level is exited.

I hope this is a useful start.

John Murray · Mar 2, 2017 go to post

Please clarify your architecture. When ECP is involved there are usually at least 2 Cache instances. One is an "ECP application server" and the other is an "ECP data server".

What Cache instance are your ODBC clients connecting to?

Where are you wanting to add load balancing?

John Murray · Mar 2, 2017 go to post

Did you answer your own question here? If so, DC now allows you to add an Answer to your own, and even mark it as the accepted answer. But I have a followup question: did you determine whether your solution is "legal" (i.e. a quirk of Management Portal), or is it a bug and likely to get "fixed" in a future release (thus breaking your app)?

John Murray · Mar 2, 2017 go to post

I just re-tested this, and starting a new post from a group's homepage still doesn't default the Group field of the post. Maybe it never will...

John Murray · Mar 2, 2017 go to post

Since the issue no longer exists I'm adding this "answer", and then accepting it, in order to remove it from the "unanswered" and "no answer" lists.

John Murray · Mar 2, 2017 go to post

Now we can, I'm adding this "answer", and then accepting it, in order to remove it from the "unanswered" and "no answer" lists.

John Murray · Mar 2, 2017 go to post

I think this post of mine may have predated the Question/Article distinction in DC, so the responses show as Comments rather than Answers. I'm adding this "answer", and then accepting it, in order to remove it from the "unanswered" and "no answer" lists.

John Murray · Mar 2, 2017 go to post

I think this post of mine may have predated the Question/Article distinction in DC, so the responses show as Comments rather than Answers. I'm adding this "answer", and then accepting it, in order to remove it from the "unanswered" and "no answer" lists.

John Murray · Mar 2, 2017 go to post

My post got misclassified as a Question rather than an Article. I've added this dummy answer to remove it from the "unanswered" list.

John Murray · Mar 2, 2017 go to post

Joyce answered this in a comment. I'm adding this as an answer so that the post no longer lists as "unanswered".

John Murray · Feb 28, 2017 go to post

Re the better notification, I just got this one in my hourly digest:

But it looks like it was triggered by a new comment added to the answer, not by a new answer. There is currently only one answer on the question, and that was added just over a day ago. But a new comment was added to that answer about an hour ago.

John Murray · Feb 27, 2017 go to post

Glad to have helped. Please click the checkmark alongside one of the answers so that the question no longer lists as "unanswered".

John Murray · Feb 27, 2017 go to post

After Michael's post originally appeared on the intersystems-public-cache Google Group (as a result of the automatic crossposting being done by a username intersystems.dc) my colleague George James responded in the Google Group (GG). However, whatever mechanism the user intersystems.dc has set up for crossposting only handles the initial DC post, and nor does it feed GG responses back to DC. So I'm re-posting George's response here where I think it will get a wider audience.

George wrote:

It seems to me that your ixdLastName index might be usable as some kind of rainbow table to attack the data contained in the AES encrypted field.
 

If I were able to perform a chosen-plaintext attack then querying with like 'J%', then 'Ja%', then 'Jam%' would trivially discover where my name was in the database. 

 
Have you carried out a cryptographic analysis of the strength of this approach?  Logically it must be weaker than just AES on its own.  My question is how much weaker?
John Murray · Feb 27, 2017 go to post

Amplifying what Dmitry wrote, here's the web app I defined to make your example class work:

I also had to change your classmethods so they Quit $$$OK instead of simply quitting.

And to test from the browser I used http://localhost:57772/csp/user/testing/print because that's the route you have defined as accepting the GET method from the browser.

There's a REST sample (REST.DocServer) in the SAMPLES namespace. To use it you need to enable the /csp/samples/docserver web application by setting this checkbox:

Then this URL will return the source of the Cinema.Review class from the SAMPLES namespace:

http://localhost:57772/csp/samples/docserver/class/samples/Cinema.Review

Given that this REST sample will return the source of any class from any namespace, it's understandable that the /csp/samples/docserver application is disabled by default on a new installation.

John Murray · Feb 27, 2017 go to post

In case it's not obvious to people, the Security package is only available in the %SYS namespace.

John Murray · Feb 24, 2017 go to post

I am also on Windows 10 and just updated Atelier from 1.0.262 to 1.0.263. I'm not seeing what you're seeing. My icons don't seem to have changed.

John Murray · Feb 24, 2017 go to post

So far I've not had any success in engaging with whoever controls that group. My message using the "Contact owner" link from the group's About page has produced no response. The last few times I've started a new post to the group I've been told it'll have to go through moderation. Then silence.

John Murray · Feb 21, 2017 go to post

Can I use the analytics to identify questions with at least one answer but with no accepted answer?

John Murray · Feb 21, 2017 go to post

Thanks for the update and the detailed info.

Re #4, I just went through the 46 pages that the "unanswered" filter returned, looking for questions I asked in order to pick an accepted answer. Could I have done that more easily than scanning each of the 46 pages one at a time?

John Murray · Feb 17, 2017 go to post

I guess this means that if you code things to allow the requester to specify the filename you may wish to take precautions against a directory escape exploit.

John Murray · Feb 14, 2017 go to post

The docs for GetConnectionList state "The list is obtained from the client machine's registry" so it's equivalent to the list of connections you can see in the "Preferred Server" submenu from your local system tray cube.

What is the $ZV string of the Cache instance on port 1972 on server 10.56.135.160 ?

John Murray · Feb 10, 2017 go to post

Are you able to try CTerm.exe from an older Caché? Maybe the newer ones are coded to do fancier things such as work over a SSL/TLS connection. In which case, an older one might not have such demanding requirements of its host platform's APIs.

John Murray · Feb 10, 2017 go to post

Thanks for posting this info Jamie, but please make the diagram PushPull.png available to us. One way is to use this button in the DC editor:

John Murray · Feb 7, 2017 go to post

Based on my reading of 2014.1 code the Exists method in Ens.Util.FunctionSet doesn't check locks when testing for the existence of the entry.

I think the Save button from Portal leads to the SaveLookupTable method of EnsPortal.LookupSettings. That method obtains an exclusive lock on the subtree of ^Ens.LookupTable where the LUT gets stored. It then kills the entire LUT and re-files each entry one by one. Once finished it releases the lock.

All of that is protected by a TSTART / TCOMMIT but this is not sufficient to prevent another process momentarily detecting the absence of an entry that would normally exist.

John Murray · Feb 2, 2017 go to post

I assume you want the subscripts of the global always to collate as strings. If so, here's how you can specify the collation type of a global when you create it. Note that the global must not exist to start with:

USER>w $D(^a)
0
USER>s sc=##class(%Library.GlobalEdit).Create(,"a",133)
 
USER>w sc
1
USER>s ^a("1.0012")=""
 
USER>s ^a("1.0011")=""
 
USER>s ^a("1.0010")=""
 
USER>zw ^a
^a("1.0010")=""
^a(1.0011)=""
^a(1.0012)=""
 
USER>

To get a list of collation codes (which is where I found 133):

%SYS>d ^COLLATE
 
Status       Number   Abbrev   Name
----------   ------   ------   ----------------------
Built-in        0     OANS     ISM Pre-6.2
Built-in        1     ANSI     ISM 6.2->6.4
Built-in        2     COBR     Ipsum/Cobra
Built-in        3     DTMC     DTM-compatible
Built-in        4     CBR2     Ipsum/Cobra-2
Built-in        5     UNIC     Cache standard
Not loaded     10     GER1     German1
Not loaded     11     POR1     Portuguese1
Not loaded     12     POL1     Polish1
Not loaded     13     GER2     German2
Not loaded     14     SPA1     Spanish1
Not loaded     15     DAN1     Danish1
Not loaded     16     CYR1     Cyrillic1
Not loaded     17     GRE1     Greek1
Not loaded     18     CZE1     Czech1
Not loaded     19     CZE2     Czech2
Not loaded     20     POR2     Portuguese2
Not loaded     21     FIN1     Finnish1
Not loaded     22     JAP1     Japanese1
Not loaded     24     POL2     Polish2
Not loaded     27     FRE1     French1
Not loaded     28     FIN2     Finnish2
Not loaded     29     HUN1     Hungarian1
Not loaded     30     GER3     German3
Not loaded     31     POL3     Polish3
Not loaded     32     SPA2     Spanish2
Not loaded     33     DAN2     Danish2
Not loaded     34     GRE2     Greek2
Not loaded     35     FIN3     Finnish3
Not loaded     36     LIT1     Lithuanian1
Not loaded     37     CYR3     Cyrillic3
Not loaded     38     SLO1     Slovenian1
Not loaded     39     SLO2     Slovenian2
Not loaded     40     TUR1     Turkish1
Not loaded     41     DAN3     Danish3
Not loaded     42     UKR1     Ukrainian1
Not loaded     43     CYR4     Cyrillic4
Not loaded     44     CZE3     Czech3
Not loaded     46     MAL1     Maltese1
Not loaded     48     MAL2     Maltese2
Not loaded     49     SPA4     Spanish4
Not loaded     50     SLO1     Slovak1
Not loaded     51     SPA5     Spanish5
Not loaded     52     FIN4     Finnish4
Built-in      128     OSTR     ISM Pre-6.2 string
Built-in      129     NSTR     ISM 6.2->6.4 string
Built-in      133     USTR     Cache standard string
 
%SYS>

If you don't want to have to bother with setting the global to use String collation rather than the default (which will be what's sometimes called Numeric collation), then prefix all your subscripts with a character that will force them to be interpreted as a string. Cache SQL uses this trick internally, adding a leading space (" ") to the subscripts it creates.