Application Express :: Validation And Accessibility In 3.2
Sep 17, 2012
my employer wants me to create an application that will respect our accessibility rules. I know APEX 4.1.1 do it far better then APEX 3.2, but this is our current version.
Do you know any way to tweak how APEX 3.2 show the error messages on the fields after the validation have been executed ?We must show the error messages before the field's caption.
And, if I use the native validation process of 3.2, will it be upgraded to 4.1.1 when we do the move without any actions ?
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Feb 25, 2013
I have to check if an entered item is identical to a previous entered item.
Tried to use the Page Level Validation but am confused with the way to do it.
P.S> The issue is that the entered item should be identical to part of the previous item (i.e. substr(P5_item, 1, 8)...)
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Apr 29, 2013
I am trying to apply page validations on a tabular form. The form allows users to update data in a database table. I have created some validations such as "column x must not be null" etc and on submit, the error message appears and the relevant cells are highlighted in red. All ok so far.
However, for the primary key, I am relying on the table definitions in the Oracle database to not allow duplicate row entries. When a user tries to enter a duplicate row the error message appears but the relevant row / cells are not highlighted, just the row number is given. In a table with many rows this is a bit annoying.
Is there anyway to get the cells to highlight in red for such circumstances or do I need to create the primary keys within APEX itself?
APEX 4.2.1.00.08
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Dec 12, 2012
i want to apply validation on date item. i have created some cases if any case would be fail then error shold be fire.How can i do this.
my code
DECLARE
F DATE;
T DATE;
BEGIN
SELECT TO_DATE(F_DATE),TO_DATE(T_DATE) INTO F,T FROM VENDOR_CONTRACT_MAS WHERE CONTRACT_ID=:P5_CONTRACT_ID
[code]...
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Aug 30, 2012
I use apex 4.1..I have a tabular form a select like this
select
"STRATEGYID",
"STRATEGYID" STRATEGYID_DISPLAY,
"STRATEGYNAME",
"ISAVTIVE",
"STRATEGYSTARTYEAR",
"STRATEGYSTOPTYEAR",
"STRATEGYTYPEID"
from "#OWNER#"."STRATEGY"
where ISAVTIVE = 1STRATEGYSTARTYEAR and STRATEGYSTOPTYEAR as a Select List contain a value of year
I select from LOV like this
select y l, y v
from (select extract(year from sysdate) + rownum - 1y from dual connect by rownum <= 51)and
I have to Validate STRATEGYSTARTYEAR must Less than STRATEGYSTOPTYEAR
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Mar 12, 2013
Application Express 4.1.1.00.23 ( plus all earlier versions that I've ever used)
When using the wizard to create a Validation of type "PLSQL Function returning Boolean", why is it mandatory to enter a value in the text field "Error Message" on the screen that follows? This message is never used as the message actually displayed comes from a PLSQL return statement.
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Sep 18, 2012
I am trying to apply 11.2.0.2.5 psu on a 2-node cluster running on RHEL 5.5 vms. Followed ORACLE-BASE examples when installed this laptop RAC. I am not using any ACFS and none of GI and DB homes are shared. But, on node 2, cluvfy THINKS database home is shared.
[oracle@rac1 trace]$ /oracle_grid/product/11.2.0.2/bin/cluvfy comp ssa -t software -s /oracle/product/11.2.0.2/db_1 -n rac1,rac2 -display_status
Verifying shared storage accessibility
Checking shared storage accessibility...
"/oracle/product/11.2.0.2/db_1" is not shared
Shared storage check failed on nodes "rac2,rac1"
Verification of shared storage accessibility was unsuccessful on all the specified nodes.
NODE_STATUS::rac2:VFAIL
NODE_STATUS::rac1:VFAIL
OVERALL_STATUS::VFAIL
[oracle@rac1 trace]$ /oracle_grid/product/11.2.0.2/bin/cluvfy comp ssa -t software -s /oracle_grid/product/11.2.0.2 -n rac1,rac2 -display_status
Verifying shared storage accessibility
Checking shared storage accessibility...
"/oracle_grid/product/11.2.0.2" is not shared
Shared storage check failed on nodes "rac2,rac1"
Verification of shared storage accessibility was unsuccessful on all the specified nodes.
NODE_STATUS::rac2:VFAIL
NODE_STATUS::rac1:VFAIL
OVERALL_STATUS::VFAIL
[oracle@rac1 trace]$ hostname
rac1
[oracle@rac1 trace]$ echo $ORACLE_HOSTNAME
rac1
[oracle@rac1 trace]$
##################################################################################
[oracle@rac2 trace]$ /oracle_grid/product/11.2.0.2/bin/cluvfy comp ssa -t software -s /oracle/product/11.2.0.2/db_1 -n rac1,rac2 -display_status
Verifying shared storage accessibility
Checking shared storage accessibility...
"/oracle/product/11.2.0.2/db_1" is shared
Shared storage check was successful on nodes "rac2,rac1"
Verification of shared storage accessibility was successful.
NODE_STATUS::rac2:SUCC
NODE_STATUS::rac1:SUCC
OVERALL_STATUS::SUCC
[oracle@rac2 trace]$ /oracle_grid/product/11.2.0.2/bin/cluvfy comp ssa -t software -s /oracle_grid/product/11.2.0.2/ -n rac1,rac2 -display_status
Verifying shared storage accessibility
Checking shared storage accessibility...
"/oracle_grid/product/11.2.0.2/" is not shared
Shared storage check failed on nodes "rac2,rac1"
Verification of shared storage accessibility was unsuccessful on all the specified nodes.
NODE_STATUS::rac2:VFAIL
NODE_STATUS::rac1:VFAIL
OVERALL_STATUS::VFAIL
[oracle@rac2 trace]$ hostname
rac2
[oracle@rac2 trace]$ echo $ORACLE_HOSTNAME
rac2
[oracle@rac2 trace]$
I can not determine any reasons and do not know how to fix.
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Sep 19, 2012
Is it possible to create a validation for tabular form which will be fired only for created?
There is a possibility in APEX 4.1 to choose two types of "*Execution scope*" first is "*For created and Modified Rows*" and second is "*All Submitted Rows*".
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Oct 13, 2012
i have text item :P1_ADMISSION_DATE .i want to validate that item if user does not enter valid date forrmat then display me error.
Date Format is 'DD-MON-YYYY'
i have try with PL/SQL Expression in Validation
My validation code
:P1_ADMISSION_DATE=TO_CHAR(SYSDATE,'DD-MON-YYYY');How can i validate :P1_ADMISSION_DATE to enter valid date format by user.
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Oct 17, 2012
In Apex 4.2, the item validation of "Function Returning Boolean" and "Function Returning Error Text"; They seam to be backwards.
Is there a simple statement that can be used to fix this in the apex dictionary?
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Mar 4, 2013
We have integrated Oracle Access Manager 11gR1 with Oracle Apex 4.1. The OAM-Apex integration is working fine. Now we want an additional header variable to be passed from OAM to the Apex application. This new header variable will be user's sAMAccountName in Active Directory. OAM is integrated with AD and the AD users are successfully able to access the Apex applications.
The three header variables which are configure in OAM right now are:
Header variable name Value
1. OAM_REMOTE_USER $user.userid
2. OAM_REMOTE_USER_EMAIL $user.attr.mail
3. OAM_REMOTE_USER_GROUPS $user.groups
We need an additional header variable as mentioned below:
Header variable name: OAM_SAMACCOUNTNAME
Value: $user.attr.samaccountname
The new header variable was added in the OHS server's dads.conf file like shown below:
=========== dads.conf =============
...
PlsqlCGIEnvironmentList HTTP_OAM_REMOTE_USER
PlsqlCGIEnvironmentList HTTP_OAM_REMOTE_USER_GROUPS
PlsqlCGIEnvironmentList HTTP_OAM_REMOTE_USER_EMAIL
PlsqlCGIEnvironmentList HTTP_OAM_SAMACCOUNTNAME
But we are not able to read the value of this attribute in the Apex application.On the Apex application, we have a text box which shows the value of this header variable. This textbox is attached with the following stored procedure call to fetch the header variable:
===================
begin
:P1_HEADER_VALUE := owa_util.get_cgi_env( 'HTTP_OAM_SAMACCOUNTNAME' );
end;
The textbox shows the correct value if HTTP_OAM_REMOTE_USER is passed to the get_cgi_env method but does not shows anything when HTTP_OAM_SAMACCOUNTNAME is passed to the same method. if I am missing some configuration to pass the HTTP_OAM_SAMACCOUNTNAME haeder variable from OAM to Apex.
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Jan 24, 2013
I have multiple application set-up using session sharing within the workspace.Technically all works fine, however it does not play nice with user behaviour.
Example:
Users logs into APP_ID:100. Since he isn't authenticated yet, he provides user/pass and the APP_SESSION is authenticated.
Now if the user switches using to another application (using a link provided in application 100) he gets redirect to APP_ID:101:APP_SESSION all is fine.
The session is already authenticated, the application shares the session and the user gains access to app 101 without having to authenticate again. All's fine!
However users don't behave they way. Instead of using an easy link in the application. They will use their own bookmark or type in the url for app 101 manually. That way the next application is either called with f?p=101:1:[SOME OLD SESSIONID FROM BOOMARK] or f?p=101 (with no further page or session info) In both cases instead of using the already authenticated session apex spawns a new session, which of course isn't authenticated yet thus forcing the user to authenticate and come complaining they have to login again.
Similar behaviour problems exists when the user opens a browser and tries to open both applications in each in a tab next to each other.Both tabs fetch there own initial session id and start writing it to the same cookie each in turn invalidating the other tab's session.These can lead to some fanatic ping pong actions. Thus it's impossible to open 2 applications sharing session in the same browser.
Is there any remedy for these situations?Can apex be as smart as for instance first trying to resume the session stored in the cookie and only if that session is invalid, start a new session?
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Apr 26, 2013
how to use checkbox item, and trying to get checked options values via application global arrays. So, this may be quite simple question, but I'm completely stuck here...
When I was looking through various threads and guides, I've encountered checkbox corresponding array names like "g_f01" - "g_f50". And so far i saw that these names are derived from item name in generated HTML code, for example:
<input type="checkbox" name="*f10*" value="3" />
And this one stands for array name "g_*f10*".However, when I tried to do the same thing - i receive item name which looks like "*p_v04*", and therefore, I can't figure out, which array name should I choose to adress it properly.
My generated HTML snippet:
<input type="checkbox" id="P6_ANSWER_0" name="*p_v04*" value="3"/>
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Mar 23, 2013
i want to display a list of all users on a page those currently accessing or using the application. How do i accomplish this requirement?
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Jul 5, 2013
APEX 4.0 Sometimes, I am getting the below error when I tried to logging into APEX workspace (after giving workspace name, User name and password), Expecting p_company or wwv_flow_company cookie to contain security group id of application owner.
ErrorERR-7621 Could not determine workspace for application (:) on application accept. I found some threads related to this but in different way not exactly when I am getting this error.
After 2 or 3 times, this error will not come and I can able to logging into workspace What is the cause for this issue??
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Nov 4, 2013
Each time when I import an application into my workspace in local 10g XE using the APEX 4.2 Application Builder, I get the "ORA-02291, constraint wwv_flows_fk violated..". The application I whant to import was originally exported from [URL]. I found out, that it has to to with wwv_flow_application_install.get_workspace_id in the installation script, which obviously returns NULL and not my current workspace id as I suppose it should. I replaced wwv_flow_application_install.get_workspace_id by '<my worskspace id>' and then the import does work.
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Jun 12, 2012
I have an application that I'd like to prevent activity in after a certain time of day, say 3pm. Is there any way I can force logout of all current users and then prevent re-login until 9am the next day (short of deleting all of their login credentials and then recreating them the next morning)?
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Sep 12, 2013
We have developed an application for our clients,planning to deploy it in client server soon. we have plans to support the application in future,so we want to restrict the clients from any modifications. By Doubt is, 'build_status=Run only' alone,cannot protect our application from client developers to edit our application,
Because though we install our application as 'Run Only' at the time of installation in client instance,we can still import the original application and change the type to 'Build and Run Application',and run the new application as 'Build and Run'.(which is not supposed to) we want to make sure,if there is any way we can protect our application from modifications after client side installation.
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Sep 5, 2013
I'm trying to connect a javascript UI control within my page to an APEX Application Process. The control calls the application process via AJAX and appends a variable number of GET / POST parameters to its URL.What is the best way to obtain these parameters from within the PLSQL procedure of the process? Or is there a better way to connect my javascript AJAX control to the Database behind my APEX app?
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Jul 16, 2012
I have some applications on Apex public workspace (apex.oracle.com), and suddenly the Tree View, on Application Builder stopped showing any content. If I select "Component View", I see the page components, but if I switch to tree view, it shows me only some empty frames.
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Jul 23, 2013
I'm trying to set up a PL/SQL dynamic action that is triggered by clicking on a button. The dynamic action sets two values in a table and then I would like to redirect to another page. Setting the values works fine. The code is below:
declarel_information varchar2(255) := :P94_FILENAME;BEGINcommit;UPDATE VDI_METADATASET CREATEUSERLISTNAME = l_information, CREATEUSERLISTON = sysdate();commit;htp.init;owa_util.redirect_url('f?p=&APP_ID.:81:&APP_SESSION.::NO:::');END; The redirect fails with the following eror: "Error: parseerror: JSON.parse: unexpected non-whitespace character after JSON data"
how to redirect to a page from within PL/SQL . None of them result in success.
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Feb 12, 2013
I'm doing a small application in Apex 4.2.0.00.27 mobile themes.
Application is used to search for books.Will work on a PC Windows with touchscreen.
How do I add a virtual keyboard to my application?
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Aug 6, 2012
version 4.0.2.00.07
I had an error importing an application into Production that was exported from Development. The application exists and I was trying to replace it.
The error I received was:
ORA-20001: GET_BLOCK Error. ORA-20001: Execution of the statement was unsuccessful.
ORA-20001: Error creating dynamic action sub-action name="NATIVE_JAVASCRIPT_CODE" id="9503820976918886"
ORA-02291: integrity constraint (APEX_040000.WWV_FLOW_PAGE_DA_A_AR_FK) violated - parent key not found<pre>
begin wwv_flow_api.create_page_da_event ( p_id => 9504132415918888 + wwv_flow_api.g_id_offset ,p_flow_id => wwv_flow.g_flow_id ,p_page_id =>I
opened the SQL that was created from the export utility and this is where it errored:
begin
wwv_flow_api.create_page_da_event (
p_id => 9503820976918886 + wwv_flow_api.g_id_offset
,p_flow_id => wwv_flow.g_flow_id
,p_page_id => 6
,p_name => 'Add tooltip to Numeric filter operators'
,p_event_sequence => 40
[code]....
Unless I'm not understanding this error it means that it can find the ACTION part that is attached to the WHAT part of this Dynamic Action? The Dynamic Action does work when the application is run (in Development)also, there are 3 others that are similar to this one. The export was created by the export utility in the Application Builder.
If I export only the page and import that into Production the import is successful and the page runs correctly. This is error is happening only when I try to import the entire Application.There are many other changes made which is why I was trying to do an Application export/import instead of individual pages.
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Feb 22, 2013
I have to modify the Form layout of an existing application (Application Express 4.0.2.) where the data for each field is retrieved using SQL statements
Presently the form looks something like this and the Data for each field is rendered properly in this layout:
UNIT # : 123456
ADMISSION #: 2012101510 DISCHARGE DATE: ADMISSION DATE:
FIRST NAME: JON LAST NAME: DOEFIRST NAME, LAST NAME and UNIT # are all "Display Only" item type.
What I'm trying to do is to move "FIRST NAME" underneath "LAST NAME" and "UNIT #" next to "LAST NAME" This part is very simple. However, the issue I'm having is as soon as the "UNIT #" is moved next to "FIRST NAME", the data for "FIRST NAME" and "LAST NAME" simply disappear
This is how it looks
ADMISSION #: 2012101510 DISCHARGE DATE: ADMISSION DATE:
FIRST NAME: UNIT #: 123456
LAST NAME:
I have played around for hours and even created from scratch a new page with a new form using SQL statements to pull the data for each field, only to get the same result.
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Aug 22, 2013
I have an application item that receives a web service result. This result is like 'MARIA','JOSE','JESUS'. I'm using this string into the parameters of the interactive report, but this is not recognized. I'm showing the content of the application item into a pl sql region and the content is 'MARIA','JOSE','JESUS', when I include this application item into the query, the IR shows me 'MARIA','JOSE','JESUS'
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Mar 6, 2013
How do I center a button within a region? I tried 'align="center"' but this seemed to be ignored. The button is at the left of the screen. Also, what are the 'display points' (Page Template Region Position 1-8) used for, and why is there a specification for column position of 1-9? Could these be attributes that will allow my button to be centered on the window instead of on the left?
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Jul 18, 2013
I am using Apex 4.2. On a click of button a Dynamic Action is written, which calls a DB Package. The DB package has exception handlers and also the package has two output parametersError Code and Error MsgSo in my code(Dynamic Code) i make a call to the package and checks the value for Erroc Code.
Begin Package call...... If v_error_code <> '0' Then Raise SC_Error; End if;Exception When SC_Error Then RAise_Application_error(v_err_code, v_err_msg);End;
But when i run the page and I click I get an Internal exception errorOutput from Debug -- I am not sure what the Cell in Red colour means, because the package is returning a correct message (before the red line).AJAX call returned server error ORA-20003:
Customer has already been matched for Execute PL/SQL Code.4......is_internal_error: true4......apex_error_code: APEX.AJAX_ SERVER_ ERROR4.. ora_ sqlcode: -200034......ora_sqlerrm: ORA-20003: Customer has already been matched4......error_backtrace: ORA-06512: at line 41 ORA-06512: at "SYS.DBMS_SYS_SQL", line 1926 ORA-06512: at "SYS.WWV_DBMS_SQL", line 973 ORA-06512: at "SYS.WWV_DBMS_SQL", line 999 ORA-06512: at "APEX_040200.WWV_FLOW_DYNAMIC_EXEC", line 830 ORA-06512: at "APEX_040200.WWV_FLOW_PLUGIN_UTIL", line 2304 ORA-06512: at "APEX_040200.WWV_FLOW_DYNAMIC_ACTION_NATIVE", line 442 4......component.type: APEX_APPLICATION_PAGE_DA_ACTS4......component.id: 231852037977562094......component.name: NATIVE_EXECUTE_PLSQL_CODE4.
Execute Error Handling Callout defined on Page or Application Level4...Execute Statement: begin declare l_error wwv_flow_error_api.t_error; begin l_error := wwv_flow_error_api.g_error; wwv_flow_error_api.g_error_result := apx_error_utils.handleerror ( p_error => l_error ); end; end;4......Values changed by callout:4..
An unexpected internal application error has occurred. Please get in contact with your system administrator and provide reference# for further investigation. 4..display_location: ON_ERROR_PAGE4Stop APEX Engine detected4Final commit4-1 - 59
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Feb 5, 2013
I need to change "File Character" when I export application with Apex 4.2.1.00.08 version, but this option, is not possible. The ComboBox already select with
"Unicode UTF-8]', but I need "ISO-8859-1 - Europa Ocidental",
how can I do change it?
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Jan 2, 2013
My question is, if I define an object type (create type ... as object ...) is it possible to hold a variable of this type as the session level? For example, if I am creating an order using multiple web pages, it would be much easier (and intuitive) to create and manipulate an order object than to hold the data in generic collections.
If that is not possible, is there some way to make a generic Apex collection appear more application specific? By this I mean some way to map the columns C001, C002, ... to more intuitive names such as CUST_NO and ORDER_DATE. I had considered possibly creating a view of the APEX_COLLECTIONS view which would rename the columns but then I would also have to create a bunch of instead of triggers if I wanted to update it as well.
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Jun 20, 2012
I've been creating numerous sample applications. In my latest one, I've been working on custom security schema and it's been working great for the most part. The one issue I'm having is passing login values into my application items. Though I don't receive any error messages or anything, upon checking the value of the application items via the session button, they never contain anything. The code I have in place on my login page is as follows:
begin
select username, user_id
into :F56_USER_NAME, :F56_USER_ID
from GS_USERS
where username = lower( rtrim( ltrim( :P101_USERNAME ) ) );
[code].........
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