Example: Category relationships

We can insert, replace, or delete your category relationship data simultaneously using the Data Load utility. These examples use a CSV file to demonstrate how to insert, replace, or delete your categories relationship data.

This example uses a CSV file to demonstrate how to insert, replace, or delete your data. We can also create and use an XML formatted file to insert, replace, or delete your data. If you choose to create and use an XML formatted file, ensure that your XML elements use the same names as are used for CSV column names.

CSV column and XML element definitions

GroupUniqueId

(Integer) The internal unique reference number of the category. Either this field or the GroupIdentifier is required.

GroupIdentifier

(String) The category identifier. This field cannot be null, and it must be unique. Either this field or the GroupUniqueId is required.

ParentGroupUniqueId

(Integer) The unique reference number of the parent category. Either this field or the ParentGroupIdentifier is required. This is null if this is a top-level category.

ParentGroupIdentifier

(String) The parent identifier of this category. Either this field or the ParentGroupUniqueId is required. This is null if this is a top-level category.

ParentStoreUniqueId

(Integer) The unique reference number of the store that owns the parent category.

ParentStoreIdentifier

(String) The Store identifier the parent category belongs to. Use this field in an extended sites store, where the parent store is different from the store that the category is added to.

CatalogIdentifier

(String) The identifier of the catalog that the parent category belongs to.

Sequence

(Double) An optional number used to control the order in which child categories are displayed in a parent category.

Delete

(String) A flag indicating whether to delete. Specify 1 to delete the row.

CSV file with sample category relationship data

Insert or replace The CSV file contains sample category relationship data with columns delimited by commas: CSV file with sample category relationship data

Formatted CSV file with column headings

GroupIdentifier	ParentGroupIdentifier	Sequence
LCD_category	TV_category	1
Fridge_category	Appl_category	2

Delete The CSV file contains sample category relationship data with columns delimited by commas: CSV file with sample category relationship data

Formatted CSV file with column headings

GroupIdentifier	ParentGroupIdentifier	Sequence	Delete
LCD_category	TV_category	1	1
Fridge_category	Appl_category	2	1

Mapping data

The following code snippet from the catalog relationship loader configuration file demonstrates how to map each value to a business object logical schema path.

<_config:DataMapping>
  <_config:mapping xpath="CatalogGroupIdentifier/UniqueID" value="GroupUniqueId" />
  <_config:mapping xpath="CatalogGroupIdentifier/ExternalIdentifier/GroupIdentifier" value="GroupIdentifier" />
  <_config:mapping xpath="ParentCatalogGroupIdentifier/UniqueID" value="ParentGroupUniqueId" />
  <_config:mapping xpath="ParentCatalogGroupIdentifier/ExternalIdentifier/GroupIdentifier" value="ParentGroupIdentifier" />  
  <_config:mapping xpath="ParentCatalogGroupIdentifier/ExternalIdentifier/StoreIdentifier/UniqueID" value="ParentStoreUniqueId" />
  <_config:mapping xpath="ParentCatalogGroupIdentifier/ExternalIdentifier/StoreIdentifier/ExternalIdentifier/NameIdentifier" value="ParentStoreIdentifier" />
  <_config:mapping xpath="Attributes/CatalogIdentifier" value="CatalogIdentifier" />
  <_config:mapping xpath="displaySequence" value="Sequence" />
  <_config:mapping xpath="" value="Delete" deleteValue="1"/>
</_config:DataMapping>

If you perform an insert or replace operation, do not specify the "Delete" column in the CSV file or we can leave the "Delete" column empty.

Business object mediator

The mediator class name is CatalogGroupRelationshipMediator.

Note: When we use a mediator that is provided with WebSphere Commerce with the Data Load utility, the utility assumes that we are loading data for all columns for a business object. To update the data in only specific columns, configure a column exclusion list for the load process. A column exclusion list causes the Data Load utility to ignore specific columns during the load operation. If you do not use a column exclusion list, the utility updates all columns in the row of a database table row when the utility updates the row. If no value is set in the input file, the utility can replace the existing column value with a default value or set the value to be null. See Configure a column exclusion list.