Use the Oracle Forms APP

The Oracle® APP_MULTI package enables you to add multi-selection functionality to a form. This option is available in APPCORE Library.

By using the APP_MULTI package, you can select single or multiple records and process them as needed. The following image illustrates random record selection:

Image Source: https://i36.me/images/oracle/ebs/ebs_frm_lnchse_with_app_multi_01.jpg

Functionality

The APP_MULTI package enables you to perform the following actions:

Click on a single record to select it.
Press and hold the Ctrl key and click on multiple records to select several records at the same time.
Choose Select All from the application menu to select all records.
Choose Deselect All from the application menu to deselect all selected records.
Click the first record, and hold down the shift key while you click the last record in a sequence to select several contiguous records.

APP_MULTI package events

The APP_MULTI package responds to the following events on a form:

KEY-CLRFRM: (form-level) Validates the record before it clears the form. Use example: APP_MULTI.EVENT('KEY-CLRFRM');
KEY-CLRREC: (block-level) Fires when you clear the current record. It is equivalent to the clear_record command.
KEY-CREREC: (block-level) Fires when you create a new record. It is equivalent to the create_record command.
KEY-DELREC: (block-level) Fires when you delete an existing record. It is equivalent to the delete_record command.
PRE-BLOCK: (block-level) Fires when you enter a block.
POST-BLOCK: (block-level) Fires when you exit from a block.
SELECT_ALL: (block-level) Fires when you select all records.
DESELECT_ALL: (block-level) Fires when you deselect all records.
WHEN-CLEAR-BLOCK: (block-level) Fires when you clear the block.
WHEN-MOUSE-CLICK: (block-level) Fires when you click the mouse.
WHEN-NEW-RECORD-INSTANCE: (block-level) Fires when you create or query a record on the block.

Manually create triggers

You need to create the necessary triggers and explicitly call the APP_MULTI.EVENT procedure by passing the name of the event being handled, as shown in the following example:

PROCEDURE event(p_event_name VARCHAR2,p_blockname
VARCHAR2 DEFAULT NULL);

For example, the KEY-CLRREC trigger can be as simple as the following command:

APP_MULTI.EVENT('KEY-CLRREC');

Note: The procedure accepts an optional argument p_blockname. If you don’t pass p_blockname, the procedure uses the value of SYSTEM.TRIGGER_BLOCK.

Selection and deselection events

When you implement the custom MULTI_RETURN_ACTION trigger (either in a data block or at the top-level of a form), the system notifies you of the record selection and deselection. The trigger fires after every individual or bulk record selection or deselection.

Trigger variables

You can use the following variables in the triggers:

The GLOBAL.APPCORE_MULTI_BLOCK global: has the name of the data block that is affected by record selection or deselection.

The GLOBAL.APPCORE_MULTI_ACTION global: has any of the following values:

- **'RECORD\_SELECTED'**: When a record is selected

- **'RECORD\_DESELECTED'**: When a record is deselected

- **'LABEL\_CHANGE'**: When the **Select All** or **Deselect All** menu
  items are enabled or disabled

The APP_MULTI.LOOPING package variable: has either TRUE or FALSE values, depending on whether you called MULTI_RECORD_ACTION within a loop.

Retrieve data selected on a form

For each data block, the APP_MULTI package has a record group with the record numbers of the currently selected records.

You can perform the following tasks by providing the name of the data block:

Use the **APP_MULTI.GET_GROUP_COL function to access a record group’s Only column for a specific data block.
Use the APP_MULTI.GET_GROUP_COUNT to get the number of selected records.

For example, given a discrete jobs form, block W_JOBS, and a field, WIP_ENTITY_ID, you can print the IDs of the selected jobs by using the following PL/SQL code:

DECLARE
 record_number_column    groupcolumn;
 selected_record_count   NUMBER;
 BEGIN
   record_number_column := app_multi.get_group_col ('W_JOBS');
   selected_record_count :=app_multi.get_group_count ('W_JOBS');

 FOR i IN 1 .. selected_record_count
  LOOP
   DECLARE
    record_number     NUMBER;

  v_wip_entity_id   NUMBER;
  BEGIN

   record_number := GET_GROUP_NUMBER_CELL (record_number_column, i);

   GO_RECORD (record_number);

   v_wip_entity_id := NAME_IN ('W_JOBS.WIP_ENTITY_ID');

   fnd_message.debug ( 'v_wip_entity_id' || v_wip_entity_id);

   EXCEPTION
    WHEN OTHERS  THEN
      Null;
  END;
 END LOOP;
END;

Conclusion

With the APP_MULTI package, you can process bulk data in custom Oracle forms. This package lets you get the details of bulk data that a user selects on the standard forms. You can use it in form personalization or custom.pll code to add custom functionality in a standard Oracle form.

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