Description

Remove duplicate items from an array of content recommendations, so that the same product or article is not displayed more than once.

array dedupe( array input [, string field] )

Based on the specified field–the name of any content attribute supported by the Content API such as a key (e.g. url) or var–deduplicate the array of content items, returning a new content array in which the value for each field exists only once. The default field (when the field parameter is not specified) is url — the URL of the content items. Note: If you want to deduplicate a content feed while maintaining the locations of content items that are pinned using Recommendations, use filter_content() instead.

Examples

• Deduplicate the content array based on matches of the url field:
  {content = dedupe(content)} or {content = dedupe(content, "url")}
  Either of the above would transform the following content array to remove duplicate URLs:

  content Before { "url" : "http://example.com/1", <additional fields> }, { "url" : "http://example.com/2", <additional fields> }, { "url" : "http://example.com/2", <additional fields> }, { "url" : "http://example.com/3", <additional fields> }

  content After { "url" : "http://example.com/1", <additional fields> }, { "url" : "http://example.com/2", <additional fields> }, { "url" : "http://example.com/3", <additional fields> }

• Deduplicate the content array based on matches of the sku field:
  {content = dedupe(content, "sku")}
• Deduplicate the content array based on matches of the title field:
  {content = dedupe(content, "title")}
• Deduplicate the content array based on matches of a content var named item_id:
  {content = dedupe(content, "vars.item_id")}
• Deduplicate the content array based on matches of a content var named item.id:
  {content = dedupe(content, "vars.item.id")}