I'm just getting started with Subsonic 3.0 ActiveRecord and am trying to implement a batch query like the one in the SubSonic docs. I'm using a batch so I can query a User and a list of the users Orders in one shot.
When I call the BatchQuery.Queue() method, adding my "select user" query, SubSonic throws the following exception:
System.InvalidOperationException : Can't decide which property to consider the Key - you can create one called 'ID' or mark one with SubSonicPrimaryKey attribute
The code is as follows:
var db = new MyDB();
var userQuery = from u in db.Users //gets user by uid
where u.uid == 1
select u;
var provider = ProviderFactory.GetProvider();
var batch = new BatchQuery(provider);
batch.Queue(userQuery); //exception here
//create and add "select users orders" query here...
First things first - Why this error? My SubSonic Users object knows it's PK. "uid" is the PK in the database and the generated code reflects this. And I thought SubSonicPrimaryKey attribute was for the SimpleRepository? Is this way of batching not for ActiveRecord?
I could ask a number of other questions, but I'll leave it at that. If anyone can help me figure out what is going on and how to issue 2 batched queries I'd be grateful!
Edit - after further investigation
I ran through the source code with the debugger. Adam is correct - the ToSchemaTable() method in Objects.cs is apparently building out my schema and failing to find a PK. At the very end, it tries to find a column property named "ID" and flags this as the PK, otherwise it throws the exception. I added a check for "UID" and this works!
Still... I'm confused. I'm admittedly a bit lost after peeling back layer after layer of the source, but it seems like this portion of code is trying to build up a schema for my table and completely ignoring my generated User class - which quite nicely identifies which column/property is the PK! It doesn't seem quite right that I'd be required to name all keys "ID" w/ ActiveRecord.
I think the answer you're looking for is that this is a really stupid bug on my part. I'm hoping to push another build next week and if you could put this on the issue list I'd really appreciate it. My apologies...
SubSonic expects your primary key to be called Id so it's getting confused. SubSonicPrimaryKey is for simple repository but I assume where that exception is being thrown is shared between the different templates. If you rename your PK to Id or id or ID your query will work.
Related
I want to mention that I'm new to SSAS and MDX.
In the past several days I've been dwelling with an excel generated query that errors out.
The problem is that a query is generated by excel when trying to read data from an online cube data source preventing other reads for that cube. The query is executed against an AZURE cube and I manage to profile it and get the following query:
with set __XLUniqueNames as {[Stores].[Chain].[Chain].&[SuperBrugsen], [Stores].[Chain].[Chain].&[Salling], [Stores].[Chain].[Chain].&[SuperBrugsen] }
set __XLDrilledUp as
Generate(__XLUniqueNames,
{ IIF([Stores].[Chain].currentmember.LEVEL_NUMBER <= 2147483647,
[Stores].[Chain].currentmember,
Ancestor([Stores].[Chain].currentmember,
[Stores].[Chain].currentmember.LEVEL_NUMBER - 2147483647)) } )
member [Measures].__XLPath as
Generate(
Ascendants([Stores].[Chain].currentmember),
[Stores].[Chain].currentmember.unique_name,
"__XLPSEP")
select { [Measures].__XLPath } on 0,
__XLDrilledUp on 1
from [SomeCube]
cell properties value
Each time query contains more than one member (an existing member from that dimension) it errors out with this message:
"Either you do not have permission to access the specified member or the specified member does not exist.".
What I have tried:
First, I tried to identify a pattern of member combinations that errors out, with no luck. It seems that for some certain members I get the error and for some, It doesn't. For single member, duplicate members and combination of members that don't exist in the cube it doesn't error.
Second, I did try the query on a different cube (on-premise SSAS) and I didn't get the error.
Third, by modifying the connection string I tried to make Excel ignore the missing members in the hope it will work using the "MDXMissingMemberMode" flag set to Ignore. I didn't work.
Forth, I tried to dissect the query to see which clause was giving the error. With my limited knowledge of MDX I suspect that "currentmember" with its "LEVEL_NUMBER" property is at fault. My guess is that it fails to get the current member for the next member in the set.
Fifth, the last thing and the longest, by accident I discovered that in SSMS you can execute a query in an mdx session (Right-click on cube -> New query) or you can open the cube in browse mode (Right-click on cube -> Browse) which results in a UI similar to the mdx query like.
No here comes the surprise, in this browse "mode" my query executes successfully each time. Intrigued by this I started to profile the request and see what was different. The difference was some additional xml structure like a list with properties. Seeing this I figured I could manipulate my connection string from excel to send some of the properties to make it work, but in the end, I didn't work.
Additional proprieties that worked:
<PropertyList xmlns="urn:schemas-microsoft-com:xml-analysis">
<Catalog>SomeCatalog</Catalog>
<ShowHiddenCubes>true</ShowHiddenCubes>
<SspropInitAppName>Microsoft SQL Server Management Studio</SspropInitAppName>
<Timeout>3600</Timeout>
<LocaleIdentifier>1033</LocaleIdentifier>
<ClientProcessID>24400</ClientProcessID>
<DataSourceInfo/>
<Format>Tabular</Format>
<Content>Schema</Content>
<DbpropMsmdFlattened2>true</DbpropMsmdFlattened2>
<ReturnCellProperties>true</ReturnCellProperties>
<DbpropMsmdActivityID>2309dfa2-3607-41b2-9446-8ece2f5ababa</DbpropMsmdActivityID>
<DbpropMsmdCurrentActivityID>2309dfa2-3607-41b2-9446-8ece2f5ababa</DbpropMsmdCurrentActivityID>
<DbpropMsmdRequestID>d3dbd079-5ca7-496c-ab55-afea71889238</DbpropMsmdRequestID>
</PropertyList>
Additional properties that didn't work:
<PropertyList xmlns="urn:schemas-microsoft-com:xml-analysis">
<Catalog>SomeCatalog</Catalog>
<SspropInitAppName>Microsoft SQL Server Management Studio - Query</SspropInitAppName>
<LocaleIdentifier>1033</LocaleIdentifier>
<ClientProcessID>24400</ClientProcessID>
<DataSourceInfo/>
<Format>Native</Format>
<AxisFormat>TupleFormat</AxisFormat>
<Content>SchemaData</Content>
<Timeout>0</Timeout>
<DbpropMsmdActivityID>e5e75ad6-8fca-4f25-abba-047f86198602</DbpropMsmdActivityID>
<DbpropMsmdCurrentActivityID>e5e75ad6-8fca-4f25-abba-047f86198602</DbpropMsmdCurrentActivityID>
<DbpropMsmdRequestID>8901787f-15a7-48a0-86eb-18ff0b92bdc4</DbpropMsmdRequestID>
</PropertyList>
Excel additional properties:
<PropertyList xmlns="urn:schemas-microsoft-com:xml-analysis" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<Catalog>SomeCatalog</Catalog>
<Timeout>0</Timeout>
<Format>Native</Format>
<DbpropMsmdFlattened2>false</DbpropMsmdFlattened2>
<SafetyOptions>2</SafetyOptions>
<Dialect>MDX</Dialect>
<MdxMissingMemberMode>Error</MdxMissingMemberMode>
<DbpropMsmdOptimizeResponse>9</DbpropMsmdOptimizeResponse>
<DbpropMsmdActivityID>9D69640F-553A-4970-BD4E-7234F1CD928C</DbpropMsmdActivityID>
<DbpropMsmdRequestID>B5E10FF0-EF2F-409E-83BF-CD2DBA20C2BE</DbpropMsmdRequestID>
<LocaleIdentifier>1030</LocaleIdentifier>
<DbpropMsmdMDXCompatibility>1</DbpropMsmdMDXCompatibility>
</PropertyList>
Result of a single member working mxd query:
SuperBrugsen [Stores].[Chain].[Chain].&[SuperBrugsen]__XLPSEP[Stores].[Chain].[All]
This all the info that I could gather for my problem. My next step is to get to Microsoft for help by I don't want to do that just yet due to the costs.
Can someone of you guys please help me out? any ideas or suggestion are most welcomed because I ran out of ideas.
It seems that the problem solved itself. Most likely there was an update that solved this issue. Ref. to azure update logs page: https://azure.microsoft.com/en-us/updates/?product=analysis-services&status=nowavailable
I have created a non-persistent attribute in my WoActivity table named VDS_COMPLETE. it is a bool that get changed by a checkbox in one of my application.
I am trying to make a automatisation script in Python to change the status of every task a work order that have been check when I save the WorkOrder.
I don't know why it isn't working but I'm pretty sure I'm close to the answer...
Do you have an idea why it isn't working? I know that I have code in comments, I have done a few experimentations...
from psdi.mbo import MboConstants
from psdi.server import MXServer
mxServer = MXServer.getMXServer()
userInfo = mxServer.getUserInfo(user)
mboSet = mxServer.getMboSet("WORKORDER")
#where1 = "wonum = :wonum"
#mboSet .setWhere(where1)
#mboSet.reset()
workorderSet = mboSet.getMbo(0).getMboSet("WOACTIVITY", "STATUS NOT IN ('FERME' , 'ANNULE' , 'COMPLETE' , 'ATTDOC')")
#where2 = "STATUS NOT IN ('FERME' , 'ANNULE' , 'COMPLETE' , 'ATTDOC')"
#workorderSet.setWhere(where2)
if workorderSet.count() > 0:
for x in range(0,workorderSet.count()):
if workorderSet.getString("VDS_COMPLETE") == 1:
workorder = workorderSet.getMbo(x)
workorder.changeStatus("COMPLETE",MXServer.getMXServer().getDate(), u"Script d'automatisation", MboConstants.NOACCESSCHECK)
workorderSet.save()
workorderSet.close()
It looks like your two biggest mistakes here are 1. trying to get your boolean field (VDS_COMPLETE) off the set (meaning off of the collection of records, like the whole table) instead of off of the MBO (meaning an actual record, one entry in the table) and 2. getting your set of data fresh from the database (via that MXServer call) which means using the previously saved data instead of getting your data set from the screen where the pending changes have actually been made (and remember that non-persistent fields do not get saved to the database).
There are some other problems with this script too, like your use of "count()" in your for loop (or even more than once at all) which is an expensive operation, and the way you are currently (though this may be a result of your debugging) not filtering the work order set before grabbing the first work order (meaning you get a random work order from the table) and then doing a dynamic relationship off of that record (instead of using a normal relationship or skipping the relationship altogether and using just a "where" clause), even though that relationship likely already exists.
Here is a Stack Overflow describing in more detail about relationships and "where" clauses in Maximo: Describe relationship in maximo 7.5
This question also has some more information about getting data from the screen versus new from the database: Adding a new row to another table using java in Maximo
Basically when a foreign key becomes null (after it was set to a value) the relationship in core data is not reset.
Take as an example the following one-to-many relationship:
contact <<---> company (contact has one company, company has many contacts)
Which is mapped in both directions with the following methods from Restkit:
RKRelationshipMapping *contactCustomerRelationshipMapping = [RKRelationshipMapping relationshipMappingFromKeyPath:#"contacts" toKeyPath:#"hasContacts" withMapping:contactResponseMapping];
[customerResponseMapping addPropertyMapping:contactCustomerRelationshipMapping];
[contactResponseMapping addConnectionForRelationship:#"forCustomer" connectedBy:#{#"companyID" : #"identifier"}];
Then, assume that a contact is linked to a company both in core data and in the remote server, so the JSON returns:
company_id = 123
which is correctly mapped to the relationship in Core Data.
Although when the relationship is null-ed out the returning JSON in response of a GET contact returns:
'contact': {
....
address = "20 Wordworth Ave";
city = "<null>";
"company_id" = "<null>";
...
}
The company_id is then set correctly in the core data entity but the relationship connection mapper then does not delete the reference to the company with id 123 via the relationship. So it seems like Restkit is not applying the null value of the foreign key to the relationship in Core Data.
I have verified that this happens only when company_id is reset to null and not when the value is changed to another company_id.
Let me know if you have any suggestion on how to solve the issue.
(Right now I am thinking to implement the setter for company_id and manually reset the relationship when it's null)
Thanks a lot!
I am using the latest Restkit development branch (which is tagged as 0.21.0 - currently the lastest release is 0.20.3 but blake watters told me that the development branch has already been tagged but he did not have the time to prepare docs)
I am actually using cocoapods and included the latest dev release with the line:
pod 'RestKit', :head
Your workaround should be doable.
This could be classed as a bug in RestKit. As such you'd be better off raising it as an issue. You can also looking at adding it as a feature.
It's possible that you could use fetchRequestBlocks in order to provide RestKit with the information required to handle this, but this would result in the object being deleted which may not be what you want.
Ok, so I'm working with an ObservableList, which is working fine, but now I need to use the observable list to insert rows into and update rows in an SQL database table. I've found little info on working between JavaFX and SQL databases ... all the examples of data tables have the data created in the java code. I had hope when I saw "update SQL database" in this post:
Update sql database from FoxPro data on Glassfish server
but it was not applicable to my situation.
So the question is, how do I start the code to read from the ObservableList so I can run my SQL Insert statement? If you could point me to an example code where an ObservableList is used and an SQL table is created/added to/updated I would greatly appreciate it.
Thanks!
UPDATE TO QUESTION:
I can't really post relevant code here because the relevant parts are what I don't have. However, I'm thinking what I need to do is something like this:
mylist.moveToFirst();
while (mylist.next()) {
make connection // think I got it
INSERT INTO mytable (name, address, phone) VALUES (observablename, observableaddress, observablephone // think I got this as well
Obviously I'm applying my knowledge of other areas to ObservableList, but I am doing it to demonstrate what I don't know how to do with my ObservableList (mylist).
Again, thanks for any help.
Tying up loose ends today, and this question has not really been answered. I reposted a newer question with more specifics once I learned more about the situation, and that question also went unanswered, but I did figure it out, and posted an answer here: Understanding my ObservableList.
However, to be neat and tidy, let me post here some code to help me remember, as well as help anyone else who looks at this question and says, "YES, BUT WHAT IS THE SOLUTION?!?!?"
Generically, it looks something like this:
I like to open my connection and prepare my statement(s) first.
Use the iterator to get the variables from the list
within the iterator, add the variables to the prepared statement and execute.
I read somewhere about batch execution of statements, but with as few updates as I'm doing with each list, that seemed too complicated, so I just do each update individually within the iterator.
Specifically, here is some code:
Connection con;
con = [your connection string]; // I actually keep my connection string in its own class
// and just call it (OpenDB.connect()). This way I can swap out the class OpenDB
// for whatever database I'm using (MySQL, MS Access, etc.) and I don't have to
// change a bunch of connection strings in other classes.
PreparedStatement pst;
String insertString = "INSERT INTO People (Name, Address, Phone) VALUES (?, ?, ?)";
pst = con.prepareStatement(insertString);
for(Person p : mylist) { // read as: for each Person [a data model defined in a class
// named Person] which in this set of statements we shall call 'p' within the list
// previously defined and named 'mylist' ... or "For each Person 'p' in 'mylist'"
String name = p.name.get(); // get the name which corresponds to the Person in this object of 'mylist'
String address = p.address.get(); // ditto, address
Integer phone = p.phone.get(); // ditto, phone. Did as integer here to show how to add to pst below
pst.setString(1, name); // replace question mark 1 with value of 'name'
pst.setString(2, address); // ditto, 2 and 'address'
pst.setInt(3, phone); // ditto, 3 and 'phone'
pst.executeUpdate();
And that's how I did it. Not sure if it's the 'proper' way to do it, but it works. Any input is welcomed, as I'm still learning.
In JavaFX you usually get to be the person to create the example :)
ObservableList supports listeners, these receive events which tell you what has been added or updated by default. There is a good example in the javadocs here.
To get update events you need to provide an 'extractor' to the method creating the list here. This should take an instance of the object in the list and provide an array of the properties you want to listen to.
Try this:
SQLEXEC(lnConn, "Update INVENTORY SET brand = ?_brand, model = ?_model, code =?_code, timestamp =?_datetime where recno=?_id ")
I'm trying to make something like this:
int count = new Select().From(tblSchema).Where("Type & 1").IsEqualTo("1").GetRecordCount();
And the error message is:
Incorrect syntax near '&'.
Must declare the scalar variable "#Deleted".
Is it possible to do that with SubSonic?
Must declare the scalar variable
"#Deleted"
The second error would be caused by using logical deletes on the table you are querying (the table has an isDeleted or Deleted column).
But I'm looking through the code, I'm not sure how that parameter is getting in there. The SqlQuery.GetRecordCount method doesn't call CheckLogicalDelete(), from what I can tell. Is that error message unrelated?
This seems to be a bug in the way SubSonic is naming it's parameters when it generates the SQL to be executed.
What's happening is that SubSonic is looking at "Type & 1" and then creating a parameter to compare against called #Type&10 which is not a valid SQL parameter name. So you'll end up with the following SQL from your original query. You should submit a bug to http://code.google.com/p/subsonicproject/
Meanwhile you can workaround the bug for now by using an inline query:
http://subsonicproject.com/docs/Inline_Query_Tool
It is a little fuzzy as to what you are trying to accomplish but here is a best guess.
int count = new Select().From(tbl.Schema).Where(tbl.TypeColumn).IsEqualTo(true).GetRecordCount();