Creating a Child Object in Application Composer


This demonstration shows how to create a child object in Application Composer. The child object we are creating appears as a subtab in the runtime application.

 

Child objects do not have a separate work area, and their records are deleted when you delete the  parent object records.

 

In this demonstration, we will create a child object, called activity. At runtime, users will create activities to record what they did to resolve the issues in a trouble ticket.

 

This is the first in a series of related demonstrations on creating a child object in Application Composer. These demonstrations cover:

1. Creating a child object

2. Adding a long text field to a child object

3. Adding a fixed choice list field to a child object

4. Adding a subtab to display the child object records

5. Testing the subtab in the runtime application


Steps:

  1. Here is a trouble ticket to show you what the finished child object will look like to the user.

    Step 1

  2. The child object will appear on a subtab that we will create in a related demonstration.

    Step 2

  3. Activities capture the tasks the organization takes in response to the issues in the trouble ticket.

    Step 3

  4. The activity child object is made up of four fields.

    - Activity Name

    - Creation Date

    - Description

    - Status

    Step 4

  5. Activity Name is added automatically when you create the child object.

    Step 5

  6. Creation Date is provided by Oracle and available for display in every custom object.

    Step 6

  7. Description is a long text field we will create in a related demonstration.

    Step 7

  8. Status is a fixed choice list field that we will show you how to create in another demonstration.

    Step 8

  9. To create a child object, begin by navigating to the Application Composer and selecting the application where the parent object was created.

     

    The trouble ticket is part of the Sales application.

    Step 9

  10. Click the Trouble Ticket link.

    Step 10

  11. Click the Create Child Object button on the far right.

    Step 11

  12. The Create Custom Child Object window appears.

    Step 12

  13. In the Display Label field, enter a name for the object. Enter "Activity".

    Step 13

  14. The application will fill in the rest  of the fields for us, so we are done.

    Step 14

  15. Click the OK button.

    Step 15

  16. The application populates the rest of the fields and creates the object.

    Step 16

  17. The Plural Label field is not used for creating a child object, so we can ignore it.

    Step 17

  18. Activity Name is the label for the field where users enter a brief summary of the activity.

    Step 18

  19. The  Activity child object is now listed among the custom objects.

     

    In related demonstrations, we will add fields to this object and create a subtab for it on the work area of its parent object, the trouble ticket.

    Step 19

This completes the demonstration of creating a child object in Application Composer.

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