VbzCart/docs/procs/Upd TitleIttyps fr CatItems Titles

About

• Purpose: fills Template:Vbzcart.
• Input: Template:Vbzcart, Template:Vbzcart, Template:Vbzcart/query
• Output: Template:Vbzcart (replace)
• History:
  • 2007-09-20
    • Removed "WHERE i.isForSale" because this prevented the availability of discontinued items from being properly zeroed out
    • Added cntInStock calculation; see table schema
  • 2010-11-10
    • Added DROP PROCEDURE for easier maintenance.
    • Actually created in database (procs did not get ported from L48 to Rizzo).
  • 2010-11-13 Source field qtyInStock was renamed to qtyIn_Stk some time ago...
    • Added cntInPrint, cntLines
    • Added (ID_Dept IS NOT NULL) AND (ID_ItTyp IS NOT NULL) to prevent those fields being null (not allowed in target table)
  • 2011-01-23 fetching Stock data from Template:Vbzcart/query instead of relying on Template:Vbzcart to be current
• Notes:
  • This is a revised version which combines two earlier procedures.
  • I had a note that "the ID_Dept field is informational, not a grouping", but I don't remember what that meant and it doesn't make sense.

SQL

<section begin=sql /><mysql>DROP PROCEDURE IF EXISTS Upd_TitleIttyps_fr_CatItems_Titles; CREATE PROCEDURE Upd_TitleIttyps_fr_CatItems_Titles()

   REPLACE INTO _title_ittyps(
     ID_Title,
     ID_ItTyp,
     ID_Dept,
     TitleName,
     cntLines,
     cntCurrent,
     cntInPrint,
     cntForSale,
     cntInStock,
     qtyInStock,
     currMinPrice,
     currMaxPrice)
   SELECT
     i.ID_Title,
     i.ID_ItTyp,
     t.ID_Dept,
     t.Name AS TitleName,
     i.cntLines,
     i.cntCurrent,
     i.cntInPrint,
     i.cntForSale,
     i.cntInStock,
     i.qtyInStock,
     i.currMinPrice,
     i.currMaxPrice
    FROM (
      SELECT
        ID_Title, ID_ItTyp,
        COUNT(ID) AS cntLines,
        SUM(IF(isCurrent,1,0)) AS cntCurrent,
        SUM(IF(isInPrint,1,0)) AS cntInPrint,
        SUM(IF(isForSale,1,0)) AS cntForSale,
        SUM(IF(iq.qtyForSale>0,1,0)) AS cntInStock,
        SUM(iq.qtyForSale) AS qtyInStock,
        MIN(PriceSell) AS currMinPrice,
        MAX(PriceSell) AS currMaxPrice
      FROM cat_items AS i LEFT JOIN qryStk_items_remaining AS iq ON i.ID=iq.ID_Item
      GROUP BY ID_Title, ID_ItTyp
    ) AS i LEFT JOIN cat_titles AS t ON i.ID_Title=t.ID
 WHERE (ID_Dept IS NOT NULL) AND (ID_ItTyp IS NOT NULL);</mysql>

<section end=sql />