I want to assign current login username into an apex 5.0 item, how can i do it.
I did below but it is not working.
dynamic action = 'on page load' action = set value Set Type = Static Asisgnment Value = &APP_USER; also :APP_USER. Affected Elements = :P12_USERNAME;
Values like this can be baked into the page render, no dynamic action necessary. Though I suspect your problem was all you needed to supply for affected elements was the item name, no punctuation.
If you want to assign it as a default value just on the UI item, then use the 'Default' option, below source details. Use Static Value:
&APP_USER.
If you need the value to also be in session state, then use a 'before region' computation on the item, but it only needs to be the same static value.
If you're not sure what session state is, then please read the concepts manual, then read a few blogs and presentations on that specific topic.
http://docs.oracle.com/cd/E59726_01/doc.50/e39147/concept.htm#HTMDB03000
If you ever need to refer to it within PL/SQL, don't use substitution strings, this opens your application to SQL Injection security issues. Use this instead:
:P12_ID := :APP_USER;
There are a list of built in substutition strings here
http://docs.oracle.com/cd/E59726_01/doc.50/e39147/concept_sub.htm#HTMDB25032
with following code i solved my problem.
1: create a PROCESS and set the EXECUTION POINT to AFTER HEADER, selected process TYPE to PL/SQL, with the below code.
Declare
username varchar2(20) := '&APP_USER.';
BEGIN
:P12_ID := username;
END;
Related
I'm building a PowerApps app on Azure SQL
The requirement
I have a form which has "Save" and "Confirm" buttons.
Both buttons should save the form data. The Commit button should also set database column "Confirm" to 1
I've read at length about how I can programatically override the update value of a hidden control for this. But I'm not satisfied with the level of complexity (maintenance) required to get this working, i.e.
Populate a variable with the current db value
In the button code set the variable value
In the form field, set the update property to the variable
What I'm Trying
So I'm trying a different approach: SubmitForm then Patch. Even though this requires an extra database call, I'd like to understand if this will work. This is the code for OnSelect in the commit button:
// Save the record
SubmitForm(frmEdit);
// Update confirmed to 1
Patch('[dbo].[Comments]',cRecord,{Confirmed:1});
Some Complexities
Note that my record is a variable, cRecord. In short I want this app to be able to upsert based on URL parameters.
This is my App.OnStart which captures URL values, inserts a record if required. Regardless, the result of this event is that cRecord is set to the record to be edited.
// Cache employees and store lookups (as they are in a different db)
Concurrent(Collect(cEmployees, Filter('[dbo].[SalesPerson]', Status = "A")),Collect(cStores, '[dbo].[Store]'));
// Check for parameters in the URL. If found, set to Edit/Add mode
Set(bURLRecord,If((!IsBlank(Param("PersonId")) && !IsBlank(Param("Date"))),true,false));
// If URL Parameters were passed, create the record if it doesn't exist
If(bURLRecord,
Set(pPersonId,Value(Param("PersonId")));
Set(pDate,DateValue(Param("Date")));
// Try and find the record
Set(cRecord,LookUp('[dbo].[Comments]',SalesPersonId=pPersonId && TransactionDate = pDate));
If(IsBlank(cRecord),
// If the record doesn't exist, create it with Patch and capture the resulting record
Set(cRecord,Patch('[dbo].[Comments]',Defaults('[dbo].[Comments]'),{SalesPersonId:pPersonId,TransactionDate:pDate}))
);
// Navigate to the data entry screen. This screen uses cRecord as its item
Navigate(scrEdit);
)
frmEdit.Item is set to cRecord. As an aside I also have a gallery that sets this variable value when clicked so we can also navigate here from a gallery.
The navigating using new and existing URL parameters works. Navigating from the gallery works.
The problem
When I press the Commit button against a record which has Confirmed=0 I get this popup error:
The data returned by the service is invalid
When I run this code against a record which already has Confirmed=1 I don't get an error
If I run the PowerApps monitor it doesn't show any errors but it does show some counts being run after the update. I can paste it here if required.
I also tried wrapping the Path in a Set in case it's result was confusing the button event but it didn't make a difference.
What I want
So can anyone offer me any of the following info:
How can I get more info about "The data returned by the service is invalid"?
How can I get this to run without erroring?
Is there a simpler way to do the initial upsert? I was hoping a function called Patch could upsert in one call but it seems it can't
With regards to the setting field beforehand approach, I'm happy to try this again but I had some issues implementing it - understanding which control where to edit.
Any assistance appreciated.
Edit
As per recommendations in the answer, I moved the patch code into OnSuccess
If(Confirmed=1,Patch('[dbo].[CoachingComments]',cRecord,{Confirmed:1}));
But now I get the same error there. Worse I cleared out OnSucces and just put SubmitForm(frmEdit); into the OnSelect event and it is saving data but still saying
The data returned by the service was invalid
First things first,
Refactoring has multiple steps,
I can t type all out at once...
The submitform and patch issue:
Never use the submitforn with extra conplexity
Submitform is only the trigger to send the form out,
The form handler will work with your data...
If you hsven t filled out the form correctly, u don t want to trigger your patch action...
So:
On your form, you have an OnSucces property,
Place your patch code there...
Change your cRecord in your patch statement:
YourForm.LastSubmit
I am trying to create a Lua program using Sublime and Corona. I want to fetch a webpage, use a pattern to extract certain text from the page, and then save the extracted text into a table. I am using the network.request method provided by Corona
The problem: The extracted text is not saving into the global variable I created. Whenever I try to reference it or print it outside of the function it returns nil. Any ideas why this is happening?
I have attached a screen shot of my event.response output. This is what I want to be saved into my Lua table
Event.response Output
Here is my code:
local restaurants = {}
yelpString = ""
--this method tells the program what to do once the website is retrieved
local function networkListener( event )
if ( event.isError ) then
print( "Network error: ", event.response )
else
yelpString = event.response
--loops through the website to find the pattern that extracts
restaurant names and prints it out
for i in string.gmatch(yelpString, "<span >(.-)<") do
table.insert(restaurants, i)
print(i)
end
end
end
-- retrieves the website
network.request( "https://www.yelp.com/search?
cflt=restaurants&find_loc=Cleveland%2C+OH%2C+US", "GET", networkListener )
This sounds like a scoping problem. From the output you give, it looks like networkListener is being called, and you are successfully adding the text into the restaurants table. Moreover, since you define restaurants as a table, it should be a table when you reference it, not nil. So by deduction, the issue must be that you are trying to access the restaurants table from somewhere where it is not in scope.
If you declare restaurants as "local" in the top level of a file (i.e. not within a function or a block), it will be accessible to the whole file, but it won't be accessible to anything outside the file. So the table.insert(restaurants, i) in your code will work, but if you try to reference restaurants from somewhere outside the file, it will be nil. I'm guessing this is the cause of the problems that you are running into.
For more details on scope, have a look at the Programming in Lua book. The book is for Lua 5.0, but the scoping rules for local variables have not changed in later versions of Lua (as of this writing, the latest is Lua 5.3).
I am currently making an app on apex.oracle.com, and I've been trying to solve this for a couple hours now, but I have no idea how to.
Alright, so basically my application has custom authentication based on a user table I created inside of my application. Therefore, it seems to render useless most APEX_UTIL functions to retrieve info on the current user. The issue is, I am trying to find a way to store the user's numeric ID from my table in the session, so I could retrieve it directly in the queries throughout my application, in order to do something like WHERE id = :MEMBER_ID instead of WHERE UPPER(username) = UPPER(:APP_USER).
Now, the way I attempted to do this is by creating a Post Authentication procedure that retrieves the user ID based on the username, and stores that value in the session using APEX_UTIL.SET_SESSION_STATE( p_name => 'MEMBER_ID', p_value => member_id ). However, it seems that SET_SESSION_STATE is unable to create custom session values or something, returning an ERR-1002 every time I use a value name that isn't specifically mentioned in the documentation.
I am a total newbie to APEX so I am probably unaware of something, however I have done many searches, but I could not find anything specifically related to my issue.
Thanks a lot if you can help.
You're trying to store a value into an item, whether page or application level. This requires that the item with that name exists in one of those scopes. So, do you have an item somewhere that is called MEMBER_ID?
I'd suggest you create one in the application scope. Go through Shared Components > Application items. Once created, you should be able to assign a value either through apex_util.set_session_state or with bind variable syntax eg :MEMBER_ID := somevariable;
There are a number of ways you can do this. Some have already been suggested in other answers.
Application Item (as per Tom's answer)
PL/SQL package global (as per hol's answer) - although you'd have to reset it for each call (e.g. by adding code to the application's Security Attribute Initialization PL/SQL Code and clearing it by adding code to Cleanup PL/SQL Code).
Globally Accessible Context - this method, while a little more complex, has some benefits especially for security and debugging. I've described it here: http://jeffkemponoracle.com/2013/02/28/apex-and-application-contexts/, but basically:
Create a globally accessible context:
CREATE OR REPLACE CONTEXT MY_CONTEXT USING MY_PACKAGE ACCESSED GLOBALLY;
In the post-authentication procedure (in the database package MY_PACKAGE), you can store the data you wish to keep track of, e.g.
DBMS_SESSION.set_context
(namespace => 'MY_CONTEXT'
,attribute => 'MEMBER_ID'
,value => '12345whatever'
,client_id => v('APP_USER') || ':' || v('APP_SESSION'));
(note the caveats in my blog article and the subsequent comments from others about CLIENT_IDENTIFIER not being reliably set at the post-auth stage)
In your views, code, etc. you can access the MEMBER_ID by simply referring to SYS_CONTEXT('MY_CONTEXT','MEMBER_ID').
How can i write a function to update record in Microsoft Dynamic NAV using Role Tailored Client Report ?
Thx in advance,
Makara
You can place code in your report triggers.
Below is a simple example of code that can be put in the OnAfterGetRecord trigger of a Customer data item that refers to the Customer table.
IF Customer.Name[1] = 'A' THEN BEGIN
Customer.Name[1] := 'B';
Customer.MODIFY;
END
The code above changes the first character of the name of any customer included in the report that begins with an upper case 'A' to an upper case 'B'.
A complete report with just this functionality and no printout can be found from pastebin:
Simple Dynamics Nav Report Sample.
You can copy the entire content of the paste into a text file and import it into Nav as text.
Beware, however that doing this will replace any previous report with the id of 50000 with this example without any additional warning or prompt. The report imported as text will need to be saved in compiled form in Nav prior to you being able to run it.
You cannot place C/AL code directly on RTC Reports -- instead you should use the triggers behind DataItems in the 'Classic' client/Development Environment, as this code is common to both Classic and RTC reports, and executed when the report is run in either environment.
To use a similar example;
Vendor - OnAfterGetRecord()
----------------------------
...
IF Vendor."Phone No." = '' THEN BEGIN
Vendor."Phone No." := NewPhoneNo;
Vendor.MODIFY;
END;
...
You may want to set the following properties on the report itself to hide the print dialog, as well as the request form (assuming you don't want filters applied):
UseReqForm := FALSE;
ProcessingOnly := TRUE;
Another important thing to note is that code sitting behind sections is only used for Classic reports and won't be executed if running in the RTC (which may explain unexpected results).
Using: Oracle ApEx 3.0.1
I have a SQL report region that contains a hidden page item as part of the "where clause". My problem is, based on a value entered by the user, I need to assign this value entered to my hidden item, so that it can be used within the where condition of my SQL but this would need to be done without actually submitting the form.
At the moment, I can set the value via an on-demand process but my SQL is still not returning any values as the hidden page item within the query is not set (as page has not been submitted).
I am not sure how to do this and whether in actual fact, this is possible to do, without having submitted the page.
Since you are on Apex 3, you don't have dynamic actions, but that doesn't hinder so much.
I've set up an example on apex.oracle.com. To get in the workspace, use workspace 'tompetrusbe' + apex_demo / demo.
There is a dynamic action there, which can do the work too, but i've disabled it.
What you need to make it work:
an ajax callback process, with the following line:
apex_util.set_session_state('P2_PAR_ENAME', apex_application.g_x01);
Give your report region a static id, i called mine 'report_emp'. This so i can easily retrieve it.
In the javascript region of the page, you then need to call the app process, and then refresh the region. Also bind the event which needs to trigger this action. I've done it here through the onchange event of the parameter textfield.
function refresh_report(oTrgEl){
//alert('refresh: ' + $v(oTrgEl));
//calling the application process which sets the session state of P2_PAR_ENAME
var oGet = new htmldb_Get(null, &APP_ID., 'APPLICATION_PROCESS=set_session_state', &APP_PAGE_ID.);
oGet.addParam("x01", $v(oTrgEl));
oGet.get(); //the app process just sets something, it returns nothing
//refresh the report region
$("#report_emp").trigger("apexrefresh");
};
function bind_events(){
//call this onload
$("#P2_PAR_ENAME").change(function(){refresh_report(this);});
};
In the query of the report i use where ename like '%'||UPPER(:P2_PAR_ENAME)||'%'.
When you type (for example) 'bl' in, and tab out (to trigger the onchange), the region will refresh and will be filtered.
You'll just need to adapt to your solution :)