Defining Relationship between Entities

After you create multiple entities, you can define the relationship between two entities. While defining the relationship, you can make one entity as a child entity of another entity. You can define the relationship between two entities as follows:

To define the relationship:

1. On the vDesigner dashboard, locate the left navigation pane.
2. In the left navigation pane, click Modules, and the navigation pane expands.

3. Under Modules, click Entity & Relationship, and the Entity & Relationship dialog box opens.

4. In the Entity & Relationship dialog box, click the Relationship tab, the Entity & Relationship dialog box displays the following fields (boxes):
   • Parent Entity
   • Child Entity
   • Relation
   • Associated Attr Array

5. In these fields, enter/select values as follows:

Box/List	Description
Parent Entity	Click this list, it displays the currently existing entities. In the list, select the entity (For example: – POD) that you want to make as a parent entity.
Child Entity	Click this list, it also displays the currently existing entities. In the list, select the entity (For example: – DUMMY) that you want to make as a child entity.
Relation	In this box, enter the following value: 1*n This value specifies the one-to-many relationship between parent and the child entity.
Associated Attr Array	In this box, enter the hardcoded value as follows: $.POD.DUMMY[]                            This hardcoded expression specifies that the DUMMY[] array type JSON object has been defined as a child object under POD entity.

6. After you enter/select the value in the respective box/list, click Save, and the parent-child relationship between two entities is successfully defined.