Adding function delete to existing tabular forms

Hi all

I have an application with several tabular forms that allow to update the data. At the time, were created the tabular forms, remove feature has not been added. But now I want to allow the user to delete records of these tabular forms. Is it possible to add features to remove the tabular forms exist rather than remove the tabular forms and recreate them?

(I use apex 4.2.)

Thanks for the help,

RN

RN,

Since you use ROWID, make sure you that ROWID is defined as a PK in the 'ApplyMRD' removal of process.

Regarding the line selector, I use apex 4.2 as well.  Under tasks, you see other options such as 'Add column link' and 'add a derived column? "  I encountered the same problem before.  I clicked on the link 'Add a derived column' and 'Add line selector', then appeared (I don't know why).  Then I could add the line selector and remove the column derived in the attributes of my report.

Hope this helps,

Brett

Tags: Database

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  • Adding line by submitting the manual tabular form while adding lines

    Hi all

    I'm a newbie in the Apex.

    I created a manual tabular form based on Apex_Collection. In addition, created the buttons ADD, DELETE and APPLY the CHANGES .

    The data below are the steps that I did.

    1 initialize the Collections

    Process: When loading - before header

    Enforcement process: once a Page visit

    Source:

    DECLARE
  l_collection_name APEX_COLLECTIONS.COLLECTION_NAME%TYPE;
  l_bind_names      APEX_APPLICATION_GLOBAL.VC_ARR2;
  l_bind_values     APEX_APPLICATION_GLOBAL.VC_ARR2;
  l_query           VARCHAR2(32767);
BEGIN
  l_collection_name := 'EMAILDETAILS';

  IF apex_collection.collection_exists(l_collection_name)
  THEN
  apex_collection.delete_collection(p_collection_name => l_collection_name);
  END IF;

  l_query := '   SELECT cmp_cd, ' --c001 => f01
  || '   email, ' --c002 => f02
  || '   tab_seq_id, '  --c003 => f03
  || '   NULL, ' --c004 => f04
  || '   NULL, ' --c005 => f05
  || '   NULL, ' --c006 => f06
  || '   NULL, ' --c007 => f07
  || '   NULL, ' --c008 => f08
  || '   NULL, ' --c009 => f09
  || '   NULL, ' --c010 => f10
  || '   NULL, ' --c011 => f11
  || '   NULL, ' --c012 => f12
  || '   NULL, ' --c013 => f13
  || '   NULL, ' --c014 => f14
  || '   NULL, ' --c015 => f15
  || '   NULL, ' --c016 => f16
  || '   NULL, ' --c017 => f17
  || '   NULL, ' --c018 => f18
  || '   NULL, ' --c019 => f19
  || '   NULL, ' --c020 => f20
  || '   NULL, ' --c021 => f21
  || '   NULL, ' --c022 => f22
  || '   NULL, ' --c023 => f23
  || '   NULL, ' --c024 => f24
  || '   NULL, ' --c025 => f25
  || '   NULL, ' --c026 => f26
  || '   NULL, ' --c027 => f27
  || '   NULL, ' --c028 => f28
  || '   NULL, ' --c029 => f29
  || '   NULL, ' --c030 => f30
  || '   NULL, ' --c031 => f31
  || '   NULL, ' --c032 => f32
  || '   NULL, ' --c033 => f33
  || '   NULL, ' --c034 => f34
  || '   NULL, ' --c035 => f35
  || '   NULL, ' --c036 => f36
  || '   NULL, ' --c037 => f37
  || '   NULL, ' --c038 => f38
  || '   NULL, ' --c039 => f39
  || '   NULL, ' --c040 => f40
  || '   NULL, ' --c041 => f41
  || '   NULL, ' --c042 => f42
  || '   NULL, ' --c043 => f43
  || '   NULL, ' --c044 => f44
  || '   NULL, ' --c045 => f45
  || '   NULL, ' --c046 => f46
  || '   ''O'', ' --c047 (for record status)
  || '   wwv_flow_item.md5(cmp_cd, email, tab_seq_id) ' --c048 (for optimistic locking)
  --c049 for (not used in collection/reserevered for seq_id array)
  --c050 (not used in collection/reservered for delete checkbox array)
  || ' FROM Cmp_Email '
  || ' WHERE cmp_cd= v(''P9_CMP_CD'') ';

  apex_collection.create_collection_from_query_b (
  p_collection_name => l_collection_name,
  p_query           => l_query
  );


  IF :REQUEST = 'ADD'
  THEN
  APEX_COLLECTION.ADD_MEMBER(p_collection_name => l_collection_name);
  END IF;

END;

    2. tabular Guide

    Type: SQL query

    Source:

    SELECT apex_item.hidden(4,c047,NULL,'f04_'|| '#ROWNUM#')
  || apex_item.hidden(5,c048,NULL,'f05_'|| '#ROWNUM#')
  || apex_item.hidden(6,seq_id,NULL,'f06_'|| '#ROWNUM#')
  || apex_item.hidden(3,c003,NULL,'f03_'|| '#ROWNUM#')
  || apex_item.hidden(1,c001,NULL,'f01_'|| '#ROWNUM#')
  || apex_item.checkbox(
  7, 
  seq_id,
  NULL,
  CASE 
  WHEN c047 = 'D' THEN seq_id
  END,
  ':',
  'f07_' || '#ROWNUM#'
  ) AS delete_checkbox,
  apex_item.text(
  2,
  c002,
  20,
  50,
  NULL,
  'f02_' || '#ROWNUM#'
  ) AS email_id
FROM apex_collections
WHERE collection_name ='EMAILDETAILS'
ORDER BY c002

    The buttons used:

    1. name button: ADD

    Action: send the Page

    2 button name: DELETE

    Action: send the Page

    3 Collection page

    Point process: present now - before the calculations and Validations

    Enforcement process: once a Page visit

    Source:

    DECLARE


  l_collection_name APEX_COLLECTIONS.COLLECTION_NAME%TYPE;
  l_original_md5    VARCHAR2(32);
  l_latest_md5      VARCHAR2(32);

BEGIN

  l_collection_name := 'EMAILDETAILS';

  FOR x IN 1 .. apex_application.g_f06.count 
  LOOP         
  IF apex_application.g_f01(x) IS NOT NULL --ID exists, check to see if record was updated
  THEN
  SELECT c048 INTO l_original_md5
  FROM apex_collections
  WHERE collection_name = l_collection_name
  AND seq_id = apex_application.g_f06(x);

  l_latest_md5 := wwv_flow_item.md5(
  apex_application.g_f01(x),
  apex_application.g_f02(x),
  apex_application.g_f03(x)
  );

  IF l_original_md5 != l_latest_md5 
  THEN
  apex_collection.update_member(
  p_collection_name => l_collection_name,
  p_seq             => apex_application.g_f06(x),
  p_c001            => apex_application.g_f01(x),
  p_c002            => apex_application.g_f02(x),
  p_c003            => apex_application.g_f03(x),
  p_c047            => 'U',
  p_c048            => apex_application.g_f05(x)
  );
  END IF;
  ELSE --ID does not exist, must be new record
  apex_collection.update_member(
  p_collection_name => l_collection_name,
  p_seq             => apex_application.g_f06(x),
  p_c001            => apex_application.g_f01(x),
  p_c002            => apex_application.g_f02(x),
  p_c003            => apex_application.g_f03(x),
  p_c047            => 'N',
  p_c048            => apex_application.g_f05(x)
  );
  END IF;
  END LOOP;

  IF :REQUEST = 'DELETE' 
  THEN
  FOR x IN 1 .. apex_application.g_f07.count 
  LOOP
  apex_collection.update_member_attribute(
  p_collection_name => l_collection_name, 
  p_seq             => apex_application.g_f07(x), 
  p_attr_number     => '47', 
  p_attr_value      => 'D'
  );
  END LOOP;
  END IF;
   
END;

    4. table collection

    Point process: submit now - after calculations and Validations

    Enforcement process: once a Page visit

    Source:

    DECLARE
  l_table_md5       VARCHAR2(32);
  l_collection_name APEX_COLLECTIONS.COLLECTION_NAME%TYPE;
  l_del_count       PLS_INTEGER := 0;
  l_upd_count       PLS_INTEGER := 0;
  l_ins_count       PLS_INTEGER := 0;
  l_success_message VARCHAR2(32767);
   
  CURSOR op_lock_check_cur (p_id IN NUMBER)
  IS
  SELECT wwv_flow_item.md5(cmp_cd, email, tab_seq_id)
  FROM Cmp_Email
  WHERE tab_seq_id = op_lock_check_cur.p_id
  FOR UPDATE;
BEGIN
  l_collection_name := 'EMAILDETAILS';


  FOR x IN (
  SELECT *
  FROM apex_collections
  WHERE collection_name = l_collection_name
  AND c047 IN ('N','U','D')) 
  LOOP
  IF x.c047 = 'N'
  THEN
  INSERT INTO Cmp_Email(tab_seq_id,cmp_cd,email) 
  VALUES (cmp_email_seq.nextval,
  :P5_CMP_CD_HIDN, 
  x.c002
  );

  l_ins_count := l_ins_count + 1;
  ELSIF x.c047 = 'U'
  THEN
  OPEN op_lock_check_cur(x.c003);
  FETCH op_lock_check_cur INTO l_table_md5;


  IF l_table_md5 != x.c048 
  THEN
  raise_application_error(-20001,'Current version of data in database has changed since user initiated update process.');
  END IF;

  UPDATE Cmp_Email
  SET cmp_cd=:P5_CMP_CD_HIDN
  ,email = x.c002
  WHERE CURRENT OF op_lock_check_cur;

  CLOSE op_lock_check_cur;

  l_upd_count := l_upd_count + 1;
  ELSIF x.c047 = 'D'
  THEN
  DELETE FROM Cmp_Email
  WHERE tab_seq_id = x.c003;

  l_del_count := l_del_count + 1;
  END IF;
  END LOOP;
   
  apex_collection.delete_collection(p_collection_name => l_collection_name);
   
  l_success_message :=  
  l_ins_count || ' rows inserted, ' ||
  l_upd_count || ' rows updated, ' ||
  l_del_count || ' rows deleted';

  :P5_SUCCESS_MESSAGE:= l_success_message;
   
END;

    When I press the ADD button, a new line must be added to the shape of the table and the data should be saved to the collection. , But currently, the page is being submitted to the database table when adding new lines in the form of tables. The data should only be saved in the database when the user clicks on the APPLY CHANGES button

    I searched the Forum about this issue and have found many discussions which suggested to use JavaScript to add new lines. As I have no knowledge of JavaScript, these solutions have been strange for me.

    Please help me solve this problem.

    Thanks in advance.

    Kind regards

    Aravind

    Hi Christophe,

    Follow the changes mentioned below

    1. remove this your Collections initialize

    IF :REQUEST = 'ADD'
THEN
  APEX_COLLECTION.ADD_MEMBER(p_collection_name => l_collection_name);
END IF;

    2 condition your collection process initialize

    Modify your process-> conditions-> PLSQL Expressions->: REQUEST IS NULL

    3. create a process more onload I say Add new line to the collection

    DECLARE
    l_collection_name APEX_COLLECTIONS.COLLECTION_NAME%TYPE;
   BEGIN
      l_collection_name := 'EMAILDETAILS';
     IF apex_collection.collection_exists(l_collection_name)
      THEN
          APEX_COLLECTION.ADD_MEMBER(p_collection_name => l_collection_name);
          END IF;
   END;

    4 condition your Add new line to the collection

    Modify your process-> conditions-> request = Expression1-> ADD (this should be request ADD button)

    5. change your button-> Action addition-> redirect to this application page :-> page no (same page)->-> ADD APPLICATION

    6. check your through the process conditional Page collection

    Modify your process-> conditions-> PLSQL Expressions->: ASK IN ('ADD', 'APPLY_CHANGES', 'DELETE')

    7. check your subject to the process of Collection to Table under condition

    Modify your process-> conditions-> PLSQL Expressions->: ASK IN ('APPLY_CHANGES')

    8. for the whole process to remove the conditions when the button is pressed.

    If the problems persists, create a sample on apex.oracle.com and share the connection information with the name of workspace.

    Hope this helps you,

    Kind regards

    Jitendra

  • APEX: Can we add additional items in tabular form existing

    Hi Experts,

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    Hi JAS-Oracle,

    JAS-Oracle wrote:

    Hi Experts,

    I built a nice tabular form with all the buttons and whistles.  All goes well until my request for the user to add another

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    Kind regards

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   ELSE
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   END IF;
END;

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0.01635 0.00008 Branch point: Before Computation
0.01643 0.00003 Process point: AFTER_SUBMIT
0.01646 0.00022 Tabs: Perform Branching for Tab Requests
0.01668 0.00008 Branch point: Before Validation
0.01676 0.00024 Validations:
0.01700 0.00135 Perform basic and predefined validations:
0.01835 0.00020 Perform custom validations:
0.01855 0.00049 ...Validation "TEST_NBR must be numeric" - Type: ITEM_IS_NUMERIC
0.01904 0.00007 ......Skip for row 1 because row hasn't changed
0.01911 0.00016 ......Skip for row 2 because row hasn't changed
0.01927 0.00012 ...Validation "TEST_ID2 must be numeric" - Type: ITEM_IS_NUMERIC
0.01939 0.00007 ......Skip for row 1 because row hasn't changed
0.01945 0.00018 ......Skip for row 2 because row hasn't changed
0.01964 0.00005 Branch point: Before Processing
0.01968 0.00004 Processes - point: AFTER_SUBMIT
0.01972 0.00588 ...Process "ApplyMRU" - Type: MULTI_ROW_UPDATE
0.02560 0.00154 ...Execute Statement: declare function x return varchar2 is begin begin for c1 in ( select "RSN_TEST_SEQ".nextval pk from sys.dual ) loop return c1.pk; end loop; end; return null; end; begin wwv_flow.g_value := x; end;
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0.02854 0.00011 ...Process "ApplyMRD" - Type: MULTI_ROW_DELETE
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0.02869 0.00015 ...Process "Process Submit" - Type: PLSQL
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0.03432 0.00007 Stop APEX Engine detected
0.03439 - Final commit

    Any suggestions?

    I have run tests on

    https://apex.Oracle.com/pls/apex/f?p=83488:1 demo/demo

    to see your problem.

    I have 2 solution for your problem.
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