I created a custom event that is tracked by Azure Application Insights. It has a few custom data properties I am able to successfully track, as well as 2 custom event properties of interest (one of which I cannot display).
The one I cannot successfully query is the event name. I'm trying to reference it in the query by using event.name, but it's returning null for all records, even though I know for sure the names are not actually null.
If anyone knows the proper way to query the custom event's name, please let me know! I can't find it on: https://learn.microsoft.com/en-us/azure/application-insights/app-insights-export-data-model
The issue here is name is in an array, so event.name returns NULL since it doesn't exist.
Will you always have only 1 name in this array?
If so the following query will extract that value:
SELECT GetRecordPropertyValue(GetArrayElement(event, 0),'name') as eventName from input
If you have various names, the query will depend of the logic (hence the suggestion to use CROSS APPLY).
Related
I have a problem creating sql dynamic action in oracle apex v4.2. I have two fields, Department number and department name. Department number is a text field with autocomplete. The department name is a display field. On changing the department number, the department name should be displayed by an sql query.
I created a set value dynamic action on department number, giving the correct values in page item to submit and the correct sql query referencing P3_DEPARTMENT_NO.
When i run the page, after select a department number, the department name is not coming up automatically.
Could you please suggest on what i might be missing.
Thanks in advance.
You can try use this way:
First step: In the Shared Components -> Application Processes: create a process myProcess an put your sql dynamic in.
Second step: Create a javascript function myFunction to call the process myProcess.
Third step: Use onChange event to call your javascript function myFunction.
Also you can find a lot of exemples on Denes Kubicek app: https://apex.oracle.com/pls/otn/f?p=31517:101:116042570427567.
Best regards,
iulian
The exact behaviour of autocomplete lists is probably browser dependent, but generally speaking, don't rely on the "Change" event, as it won't necessarily fire when you select from the list.
You'll need to experiment to get the behaviour you want in your particular situation, but as a starting point you might want to try replacing the "Change" event type on your dynamic action with "Lose focus". That way the dynamic action should always be triggered when you tab or click away from P3_DEPARTMENT_NO.
In similar situations in the past, I've used "Key release" instead of "Lose focus", and I've created a second dynamic action which does the same thing, but triggered by "Get focus". That combination ensures that the display field stays synchronised with the user's selection, whether a value is keyed in or selected from the autocomplete list. Whether or not you go this route depends on how happy you are about the database being hit with your department name query every time a user interacts with P3_DEPARTMENT_NO in any way.
I've got a table "Events" with a linked table "Registrations", and I want to create an OData service that returns records from the Events table, plus the number of registrations for each event. The data will be consumed client-side in JavaScript, so I want to keep the size of the returned data down and not include all linked registration records completely.
For example:
ID Title Date Regs
1 Breakfast 01.01.01 12:00 4
2 Party 01.01.01 20:00 20
I'm building the service with ASP.NET MVC4. The tables are in an MSSQL database. I am really just getting started with OData and LINQ.
I tried using the WebAPI OData system first (using classes of EntitySetController) but was getting cryptic server errors as soon as I included the Registrations table in the entity set. ("The complex type 'Models.Registration' refers to the entity type 'Models.Event' through the property 'Event'.")
I had more success building a WCF OData system, and can request event information and information on related registrations.
However, I have no clue how to include the aggregate count information in the event result set. Do I need to create a custom entity set that will be the source for the OData service? I probably included too litte information here for finding a solution, but I don't really know where to look. Can somebody help me?
If you're willing to make an extra request per Event, you could query http://.../YourService.svc/Events(<key>)/Registrations/$count (or http://.../YourService.svc/Events(<key>)/$links/Registrations?$inlinecount=allpages if you're also using the links to the Registration entities).
Examples of both of these approaches on a public service:
http://services.odata.org/V3/OData/OData.svc/Suppliers(0)/Products/$count
http://services.odata.org/V3/OData/OData.svc/Suppliers(0)/$links/Products?$inlinecount=allpages&$format=json
I'm guessing that you'd prefer this information to come bundled together with the rest of the Events response though. It's not ideal, but you could issue a query along these lines:
http://services.odata.org/V3/OData/OData.svc/Suppliers?$format=json&$expand=Products&$select=Products/ID,*
I'm expanding Products (analogous to your Registrations) and selecting Products/ID in order to force the response to include an array that is the same size as the nested Products collection. I don't care about ID -- I just chose a piece of data that would be small. With this JSON response, your javascript client can get the length of the Products array and use that as the number of Products that are linked to the given Supplier.
(Note: to have your service support $select queries using WCF Data Services, you'll need to include this line when you initialize the service: config.DataServiceBehavior.AcceptProjectionRequests = true;)
Edit to add: The approach using $expand and $select won't be guaranteed to give you the correct count if your server does server-driving paging. In general, there isn't a simple single-response way to do what you're asking for in OData v3, but in OData v4, this will be possible with the new expand/select syntax.
i'm using oData v4 and i used this syntax :
var url = '.../odata/clients?$expand=Orders($count=true)';
// ...
a field called Orders#odata.count has been added to the response entity which contains the correct count.
and now to access the JSON property containing a dash you have to do it like this :
var ordersCount = response.value['Orders#odata.count'];
hope this helps.
Can you edit your Event model and add a RegistrationCount property? That'd be the simplest way I think
What I ended up doing was actually very simple; I created a View in SQL Server that returns the table including the registration counts. Never thought about using a view, since I've never used them before...
I used this to get the child count without returning the entities:
/Parents$expand=Children($count=true;$top=0)
(I tried posting this to the CFWheels Google Group (twice), but for some reason my message never appears. Is that list moderated?)
Here's my problem: I'm working on a social networking app in CF on Wheels, not too dissimilar from the one we're all familiar with in Chris Peters's awesome tutorials. In mine, though, I'm required to display the most recent status message in the user directory. I've got a User model with hasMany("statuses") and a Status model with belongsTo("user"). So here's the code I started with:
users = model("user").findAll(include="userprofile, statuses");
This of course returns one record for every status message in the statuses table. Massive overkill. So next I try:
users = model("user").findAll(include="userprofile, statuses", group="users.id");
Getting closer, but now we're getting the first status record for each user (the lowest status.id), when I want to select for the most recent status. I think in straight SQL I would use a subquery to reorder the statuses first, but that's not available to me in the Wheels ORM. So is there another clean way to achieve this, or will I have to drag a huge query result or object the statuses into my CFML and then filter them out while I loop?
You can grab the most recent status using a calculated property:
// models/User.cfc
function init() {
property(
name="mostRecentStatusMessage",
sql="SELECT message FROM statuses WHERE userid = users.id ORDER BY createdat DESC LIMIT 1,1"
);
}
Of course, the syntax of the SELECT statement will depend on your RDBMS, but that should get you started.
The downside is that you'll need to create a calculated property for each column that you need available in your query.
The other option is to create a method in your model and write custom SQL in <cfquery> tags. That way is perfectly valid as well.
I don't know your exact DB schema, but shouldn't your findAll() look more like something such as this:
statuses = model("status").findAll(include="userprofile(user)", where="userid = users.id");
That should get all statuses from a specific user...or is it that you need it for all users? I'm finding your question a little tricky to work out. What is it you're exactly trying to get returned?
I have an object graph consisting of a base employee object, and a set of related message objects.
I am able to return the employee objects based on search criteria on the employee properties (eg team) etc. However, if I expand on the messages, I get the full collection of messages back. I would like to be able to either take the top n messages (i.e. restrict to 10 most recent) or ideally use a date range on the message objects to limit how many are brought back.
So far I have not been able to figure out a way of doing this:
I get an error if I attempt to filter on properties on the message (&$filter=employee/message/StartDate gives an error ">No property 'StartDate' exists in type 'System.Data.Objects.DataClasses.EntityCollection`1).
Attempting to use Top on the message related object doesn't work either.
I have also tried using a WebGet extension that takes a string list of employee IDs. That works until the list gets too long, and then fails due to the URL getting too long (it might be possible to setup a paging mechanism on this approach)...
Unfortunately the UI control I am using requires the data to be in a fairly specific hierarchical shape, so I can't easily come at this from starting on the message side and working backwards.
Outside of making multiple calls does anyone know of a method to accomplish this with wcf data services?
Thanks!
M.
Looks like the only real way of doing this is in fact to reverse the direction of the query.
So instead of starting from the Employee, I go from the message side. You can filter back on the employee properties, and restrict on the Messages collection. Its not ideal, as it means iterating the collection on return to re-center it on the employee for what I am attempting to do, but it will work. The async nature of silverlight and rich client at least means while an extra iteration is required, it still appears to be reasonably fast.
Another interesting thing to note: the current version of odata/wcf data services does not support querying on properties of inherited classes, so I had to move the start/end date properties up to the base class in order to be able to restrict my search on them.
http://Site/Service.svc/Messages()?&$filter=Employee/OfficeName eq 'Toronto' and (year(StartDate) eq 2010 and month(StartDate) ge 9 )
Hi does any one know how to check if a given DB object (Table/View/SP/Function) is used inside Oracle.
For example to check if the table "A" is used in any SP/Function or View definitions. I am trying to cleanup unused objects in the database.
I tried the query select * from all_source WHERE TEXT like '%A%' (A is the table name). Do you thing it is safe to assume it is not being used if it does not return any results?
From this ASKTOM question:
You'll have to enable auditing and then come back in 3 months to see.
We don't track this information by default -- also, even with auditing, it may be very
possible to have an object that is INDIRECTLY accessed (eg: via a foreign key for
example) that won't show up.
You can try USER_DEPENDENCIES but that won't tell you about objects referenced by code in
client apps or via dynamic sql
There's code in the thread for checking ALL_SOURCE, but it's highlighted that this isn't a silver bullet.