Application Express :: Clearing (or NOT) Form Fields After ARP CREATE Or DELETE Operation
Jan 15, 2013
I understand everything -- <gripe> need better Automated Row Fetch (ARF) documentation </gripe>, but I now have CREATE, QUERY, and DELETE working and I can choose to clear the form (or NOT). And I don't claim this is the best or simplest or most-efficient or most straight-forward approach. It's one virtue is that it does seem to work.
I need to be careful state that this involves both Automated Row Processing (ARP) -- which enables INSERT, UPDATE and DELETE. And Automated Row Fetch (ARF) -- which enables SELECT. ARF is found under Page Rendering and ARP is found under page processing. As we have seen, the two are -- or can be -- interdependent. For example, I believe the error I talk about next is caused by ARF trying to fetch the record just deleted by ARP.
Starting from the situation of
1) having the values retained on the screen when CREATE is clicked and the record is added and
2) getting a database error after a DELETE of a row, A solution is the "reset" processes. Under Page Rendering add a "reset page" process to: "Clear Cache for all Items on Pages (PageID,PageID,PageID)" and indicate the page with the database operations and under Conditions: When Button Pressed: choose CANCEL, CREATE, DELETE, QUERY or SAVE. I made two of these - one for CREATE and one for DELETE. To cover both buttons, you need two processes as you can only indicate one button per process.
Now the form (screen) is cleared after the CREATE (by process
1). And since it's also cleared after the DELETE (by process
2), there is no Database error on DELETE.
(The source of that error was ARF trying to retrieve the deleted record because the PK field had the "just deleted" key value. This nulls it and I have ARF set not to attempt a fetch when the key field is null.
So, how about that? Burleson has an example here which adds more detail than I recall seeing before.URL>....
I think the DML Fetch Mode settings he shows are new to the ARP screen in 4.2. I don't see them in 4.1.
I have an application where I'm trying to match skillset supply to skillset demand. We have resources and we have work for resources to do. Resources possess a set of skills. Work requires a set of skills. Skillsets are described by three fields: Domain, Target, Skill. So, we are able to capture the supply of skills in a table:
RSRC_ID (FK to Resource table) DOMAIN TARGET SKILL PROFICIENCY (this is the skill level 1 to 5)
The relationship of resources to skill supply is 1 to many. Conversely, work demands skills, and so we capture skill demand in a table:
WORK_ID (FK to Work table) DOMAIN TARGET SKILL.
The relationship of work to skill demand is 1 to many also.
Users assign skills to resources using a master-detail form. It works fine Users assign skills needed to work also using a master-detail form, and it works fine as well
A view then joins the skillset supply to skillset demand so that assignments can be made only where supply and demand match. This view is used in the LOV below.
I am using a mapping table to capture assignments of work to resources or resources to work. It is a many to many mapping of work and resources with matching skillsets, and it looks like this:
RSRC_ID WORK_ID DOMAIN ( TARGET ( These are the skillsets where demand equals supply and are derived from the view and presented in the LOV ) SKILL (I've created master-detail forms for the two types of assignments. An LOV in the detail form will present qualified resources or eligible work and then return the appropriate RSRC_ID or WORK_ID, but I must also populate the other three fields (DOMAIN, TARGET and SKILL) before I can insert or update the record. Here's the LOV from the form where resources are assigned to work:
SELECT sed.domain||'.'|| sed.target||'.'|| sed.skill||'/'|| sed.skill_prof||' '|| r.first_name||' '|| r.last_name "d", r.rsrc_id "r" FROM ri_resource r, ri_skill_supply_eq_demand sed WHERE r.rsrc_id = sed.rsrc_id AND sed.work_id = :P18_WORK_ID
order by 1It is not enough to just match the work to the resource, we must record for what skillset they are matched. I can't seem to see an easy way to populate the three other fields in the tabular form using data that I can retrieve with the LOV.
I created report with row selector, when I select one row I get tabular form regarding to the selected row from report. I can insert and update data from tabular form, but I have problem with deleting them. Error I get is
ORA-01403: no data found (Row 207589)
My tabular form is created by wizard and primary key is managed by database rowid, I use apex 4.1 an 10g database.
I have a wizard created tabular form, adding a row is easy using addRow() function, is there a way that I can delete the row from it? Let's say I have added a row and not submitted the form, but now I want to delete just that row from the form, how can I do that?
I am not familiar with form with report in APEX. I have a lot of forms with reports that was created before, but they have only create buttons. Now I need to add edit and delete buttons. I wish I do not have to recreate forms with reports. But when I tried to add delete function by comparing a form with delete button created by APEX, but it does not work. the delete button does not react at all.
setting is as follows:
button style: template based button button template: Button button type: normal action: redirect to URL execute validation: NO URL target: javascript:apex.confirm(htmldb_delete_message,'DELETE'); database action: SQL delete action condition type: value of item / column in expression1 is not null expression1: P2172_ALIAS_ID
I also enable the delete in the process of :"Process Row of SOR_ALIAS"
If I set action of delete button as submit page, I can delete the row, but no standard popup warning,
I am using theme 4, topaz. Region_Position_06 is a home link.
I have placed a company graphic at this position on page zero, and when a user clicks it on any page, she exits that page and goes to the home page, a main menu page. So no matter how deep a user may be into the application's pages, she may always click this logo image and return directly to the main menu page.
This is convenient, but there is one problem. Clicking this logo does not clear the cache on the page the user is exiting or, for that matter, on any page in the trail of pages the user took to get to the current page. I navigate primarily with buttons and always clear the cache on a page when I exit it. I need to find a way to do this when a user clicks the logo image.
using apex 4.1, created tabular form for inserting values from customer with a simple query
table name : customer select USER_ID , USERNAME, PASSWORD, STATUS, PRODUCT_ID from CUSTOMER
I WANT TO FETCH THE NAME OF PRODUCT FROM ANOTHER TABLE NAME PRODUCT_NAME, I WANT THAT WITH TABULAR FORM COULMN OF PRODUCT NAME IS ALSO DISPLAYED, HOW I DID THAT ? JUST WANT TO ADD COLUMN FROM ANOTHER TABLE IN TABULAR FORM.
WHEN I ADD TABLE NAME IN FIRST QUERY IT IS NOT WORKING GIVING ERROR ABOUT NOT JOINING THE TABLE
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*".
how to make a form with report and an insert form in the same page, these two forms are related to the same table. Our customer wants a user can add new row to the table in a form and see all of rows created by this user in a report, this report should provide edit link as well. the problem is: whenever I inserted a new row or edit a row or delete a row, and submitted, and return to this page, all of hidden items lost their values, so report is blank, and some display only items also lost their values.
how to dynamically populate text fields.For eg, i have a lov with employee no, as soon as a no is selected next text field with employee name will be populated.
I am running APEX 4.0.2.I am having an issue where I have a page item that has a post calculation
My source used is "Always..." My source type is "Database Column"
I have tried putting the code in the page item under "Post Calculation Computation", as a dynamic action, and as a Computation Process. It displays properly on the form no matter where I put the code, but when I select Apply Changes it is not updating the database. What am I doing wrong? I have provided a sample of the code, and yes the column name is in the database.
CASE WHEN :P12_NUM_OF_BOOKED_DEALS>0 AND :P12_DATE_1ST_COMPLETE IS NULL THEN '(2) In Process' ELSE '(D1) Open Draft' END
How to have a dynamic action populate text fields. When the create button is hit, it will insert the record in the DB like normal.
I had a search box doing a dynamic action when a record_number is entered and the selection changes It populates the remaining text boxes with the results of the record_number.
I used a "SET_VALUE" true action on each individual ITEM
For each individual item i have different SQL Statement populating that item.
Ex. To populate Last_Name/ P2_LAST_NAME item i do the following
Select LAST_NAME from patient_Demographics where record_id = :P2_RECORD_ID
Affected Elements: P2_LAST_NAME
So i have about 8 of these true statements, so i'm hitting the DB 8 times to get the individual items. Is there a way to hit the DB once and set the items using one PL/SQL statement? I tried using a PL/sql function body,
Let me explain, I have two items in my page, the first is not required, if it is null the second field is a value list based on selection A (select from A. .. A. .. where . A..) but if the field is not null then the list of values of the second field is based on the selection B (Select B from B where B. ..).
I create a dynamic action on the event "change" of my first field, on the "true action" I tried this:
I'm trying to simulate a delete operation through using an update on a trigger my tables are
CREATE TABLE EMPLOYEE ( LNAME VARCHAR(15) NOT NULL, SSN CHAR(9) NOT NULL, salary FLOAT, dno INT NOT NULL, vst DATE, vet DATE, PRIMARY KEY (Ssn)); [code]....
What I want to do is whenever there is an update on vet( valid end time) in employee, delete the values from the employee table and insert the old values from employee into the emp_history table along with the new value for vet. Here's my trigger
CREATE TRIGGER trig4 AFTER UPDATE OF VET ON EMPLOYEE FOR EACH ROW BEGIN INSERT INTO EMP_HIST VALUES( : old.LNAME, : old.SSN, : old.salary, : old.dno, : old.vst, :new.vet); DELETE FROM EMPLOYEE WHERE(SSN = :NEW.ssn AND vet IS NOT NULL); END trig4; //ignore the space between : and o as it makes a smily
The problem is I get an error for a mutating change, what I'd like to know is if the above trigger is possible, and if so how to implement it without giving me an error. I mean it makes sense syntactically and logically(at least to me).
I created a master-detail form using wizard in oracle apex 4.2 Now I want to attach an LOV to one of the items of detail form, which is visible on the same window as of master form. To do so, I need to first find the item in detail page, details of which are not available in page definitions. I can see all the items of master form but none for detail form in "Page Rendering" section.
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.
I have created a simple page with a tabular form built on a view. The view is on top of a collection that is created when the page is ran. I added a tabular form column validation. I then was going to add a pl/sql process to handle the updates into the db, but before I did that I wanted to delete the ApplyMRU that was created when I first created the tabular form because it does not make sense on my view. When I went to delete the MRU it gave me an error saying "Multi Row Update processes can't be deleted as long as there are validations defined for the tabular form".
I have searched for an answer on this, but so far I have not found much. I am hoping it is something simple that I am missing. I even tried deleting the MRU first and then add the validation, but then it gave me another error about "Tabular form validations require multi-row update processes" I know this was possible in 4.1, but now I am trying it on 4.2
I need to delete all the registers where the table 1 does join with table 2 in 3 fields... for example:
delete taba1 t1 where t1.campo1 in ( select distinct(tr.campo1) from tabla1 tr, tabla2 t2 where t2.error = 0 tr.campo1 = t2.campo1 and tr.campo2 = t2.campo2
How i can use check box in tabular form . working with 4.1 and am using simple check box (display as) .it creating the check box. how i can set value yes or no into it?
registration forms for events (like Technology days and so on) with Apex? I want to build up something like that where customers can register for several events.
What is needed:
registration form with a limited registration (e. g. 80 customers) e. g. create a trigger?
This problem went away for me in 4.2, but I am limited to 4.1 in production. The problem is this: I have three editable columns in my Tabular Form
1) I make a change to column 3 and press submit. The values in columns 1 & 2 (that were not changed) are overwritten with null during the update (submit). Column 3 is saved correctly.
I deleted my tabular form and re-created it thinking that I may have trashed something. But it appears that is the way it works. How do I prevent the unchanged editable columns from being overwritten with nulls?
I need a form that will allow me to put Classifications and Sub Classifications against a Person. I want to be able to add new Classifications and SubClass Values which are dynamical added to the form...
I have a table that holds other data and links the People to the Assessment
I have a table to hold the Values of the Assessment...
Table(*AssessmentValues*) AValuesID, AssessmentID, ClassID, SubClassID ----------------------------------------------------------------- A typical person may look like: e.g.
Now I have the data tables but how to create the table and save the values for the Assessment Values in one table the dynamically adds values based on the different classifications available...
