Rating feedback line - function that will return the medium value for all entries for a product for a line.

Function format: |RATING_ITEM_CHECK(rating_code,rating_item,line,operation)| , where:

• rating_code - ke rating code from existsing ratings
• rating_item - rating item it - partner, product, etc
• line - a line number
• operation - operation type, only AVG is implemented for now

Example:

AVG: |RATING_ITEM_CHECK(CODE,1234,3,AVG)|
|RATING_ITEM_CHECK(BUSINESS_RATINGS,|PARTNER_ID|,1,AVG|