go to post Joel Solon · Jan 6, 2020 I'm sorry to mislead; ReturnResultSets doesn't make a difference after all. I played around a little more, calling a simple stored procedure from a JDBC client (DBeaver). Select Sample.Employee_StoredProcTest('jj') returns the result, and ignores anything in %sqlcontext unless you throw an exception, and the %sqlcontext properties are nested. Call Sample.Employee_StoredProcTest('jj', '') shows the un-nested %SQLCode and %Message properties of %sqlcontext, but doesn't return the result. So maybe the solution is to return tMsg.Size by reference and use Call?
go to post Joel Solon · Jan 6, 2020 Would you please try adding ReturnResultSets to your original method and let us know? This works for me. ClassMethod Get(pId As %String) As %String [ SqlName = GetMsg, SqlProc, ReturnResultSets]
go to post Joel Solon · Dec 23, 2019 %OnNew() must return a %Status to %New(). But the code that calls %New() also needs the %Status. I think a "best practice" is simply to add an Output %Status argument to %OnNew() that will therefore be returned to %New(). So the %Status is being returned using return (for %New()) and by using a pass-by-reference argument (for the code that calls %New()). /// constructor Method %OnNew(name As %String = "", phone As %String = "", dob as %Date, Output st As %Status) As %Status [Private] { set st = $$$OK set ..Name = name set ..Phone = phone set ..DOB = dob set st = ..%ValidateObject() // validate the new object return st }
go to post Joel Solon · Nov 18, 2019 Since transactions can be nested, and TROLLBACK rolls back all transactions, it's best practice to pair each TSTART with TROLLBACK 1, which will rollback only the currenct transaction.
go to post Joel Solon · Nov 18, 2019 In the example for READ UNCOMMITTED, after the second (right-hand) Terminal session sets ^t(1)=2, when the first (left-hand) Terminal session writes ^t(1), the example shows/states that a "3" appears, but that's wrong; it should be a "2".
go to post Joel Solon · Oct 28, 2019 I started as an M guy, abbreviating everything, for many years. Once extra spaces were allowed in ObjectScript, I re-trained myself to use extra spaces and fully spelled out commands and $functions. When I'm writing code for myself in the Terminal, I don't always spell everything out. But any code I write that others will see, I spell everything out. Some folks in this thread talk about abbreviating some commands but not others, or some $functions and not others. Imagine code at one company written by 10 programmers, all of whom choose their own way of abbreviating or not abbreviating. A new programmer joining the company will see a mess. Then imagine trying to come up with an agreed upon set of standards at the company ("you can abbreviate these commands but not those, and you can abbreviate these functions but not those") so that the code appears (at least) consistent. A new programmer joining the company will still see a messy standards document that they'll have to keep checking until they have it memorized. Compare that to: "spell everything out, spaces around all operators, a space after every comma" (what I do) or something similar. I think the end result justifies the extra typing.
go to post Joel Solon · Oct 3, 2019 If you want to allow subclasses of class A with a property that references Abstract %Persistent Class B, and allow A objects to use that property to reference any of the subclasses of B, class B must have its own extent (all subclass data stored in the same global). Otherwise, since the A objects only store the ID of the referenced B objects, how would the system determine which subclass of B ID #52 refers to? When all the subclass data is stored in the same global, IDs are unique across all subclasses, and ID #52 refers to one object only. Adding a BitMap extent index to class B helps compensate for the fact that all B objects are stored together, and improves the performance of queries on the subclasses.
go to post Joel Solon · Oct 3, 2019 OK. In your original post, you wrote "storing data in separate globals for each class" which made me ask my question. You should probably edit that to be "storing data in separate globals for each subclass". And, yes, that is the correct way to achieve that.
go to post Joel Solon · Jul 29, 2019 As Eduard said, use a custom resource. Now it depends on what you want to do:If you want to restrict certain Portal pages to a subset of users, create a custom resource (R1 for this example), add it to the pages you want the subset of users to access, and then add Use permission on the R1 resource to an existing or new role. Only users that are members of that role will have access to the pages.If you want to restrict certain users to a subset of Portal pages (your question), create a custom resource (R2 for this example), add it to all the pages the users should not access, and then add Use permission on the R2 resource to an existing or new role. All other users should be in this role, and they will have access to all the pages, as they did before these changes. Any pages that aren't protected by R2 will be the only pages available to the users that aren't in the role. Hope that's clear.
go to post Joel Solon · Jul 29, 2019 James, for this one, there is no easy answer. But first, here are some corrections FYI:Since what you're passing in to execute contains quotes ("SYSTEM"), surround that with single quotes instead of double quotesSince the Security.System class is in %SYS, specify the namespace in your command.So it's this:csession TEST -U %SYS '##class(Security.System).AutheEnabledGetStored("SYSTEM")'But the problem is that this expression doesn't output its value, and you can't include "write" at the beginning. You should probably describe exactly what you're trying to do in more detail, and someone here will make a suggestion.
go to post Joel Solon · Jul 29, 2019 Security.System is a persistent class with 1 object in it. The ID of the object is "SYSTEM". So this works set ss = ##class(Security.System).%OpenId("SYSTEM") write ss.AutheEnabled The approach above is best if you want to access several properties. But if all you really want is one or two properties of Security.System, you can do this: write ##class(Security.System).AutheEnabledGetStored("SYSTEM")
go to post Joel Solon · Mar 19, 2019 Also note:InterSystems IRIS v2019.1 also provides direct access to globals, using a feature called the Native API for .Net. Check the doc for it here. The Native API for .Net can connect to InterSystems IRIS on the same machine or another machine. On the same machine, the connection speed between .Net and InterSystems IRIS is even faster than with Caché, through the use of a shared memory connection. Read more about it here.
go to post Joel Solon · Mar 5, 2019 Brendan's comment from the other thread summarizes it nicely. Here's a little more...you have 2 good alternatives to parent-children:Without using either relationship option, just use a simple reference from the "many/child" class to the "one/parent" class, and add the FK constraint yourself (using "cascade"). This allows bitmap indexes in either class.Simulate parent-children relationship using one-many. After setting up the one-many relationship, in the Relationship definition in the "many" class, add the bold items shown here: [Cardinality = one, Inverse = Orders, Required, OnDelete = cascade]. This allows bitmap indexes in either class.
go to post Joel Solon · Jan 31, 2019 To me, the answer is Yes. I guess using CompileAfter signals to another developer that the code doesn't have to be runnable at compile time, but DependsOn signals that it does.
go to post Joel Solon · Jan 30, 2019 From @Simon Player: as an alternate approach for Example #1 above:I would be inclined to abstract all the ‘shared’ params to a superclass (or more than one if it makes sense due to conflicts or large number of params), and inherit that class where needed in all the places where is it referenced – then simply use {..#PARAMBBB}This is easier to manage, more balanced, and the class compiler can take care of the dependencies, and is arguably cleaner than having a number of cross dependencies (assumes there are not too many, and no conflicts in param names).
go to post Joel Solon · Jan 8, 2019 Evgeny, if I understand you, you're saying that they downloaded the quotes to a CSV file and then they read in the CSV file. I'm now wondering if/how they "chunked" the quotes. Did they read in and store each quote one at a time, or did they read in 1000 quotes into a Java array and then store those quotes, read in another 1000 and store those, etc.
go to post Joel Solon · Jan 7, 2019 Great post! I have a followup question: How did you load the Finam data? Was it "over the wire" all at once? Or were you reading from one or more csv files?
go to post Joel Solon · Jan 2, 2019 It sounds like you want to do pattern matching, but for some reason you don't want to use ObjectScript pattern match syntax for your mask. So you've decided that you want to use * for "any number of any character" and ? for "a single character" which are pretty common.Remember that ObjectScript also has the $match Regex function. So your match() method could use that syntax for the search mask and you wouldn't have to write any code to change * into .E and ? into 1E and you'd get the benefit of additional options offered by $match.