Difference between revisions of "VbzCart/pieces/catalog/building"
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==Version== | ==Version== | ||
| − | This is | + | This is a tricky process which has been revised multiple times. |
| − | + | ||
| − | + | * {{l/sub|2017}} version - 2016 code apparently never really got finished, and the Items table needs some flag changes | |
| − | + | * {{l/sub|2016}} version - webified version of 2010, with rules finally documented | |
| − | + | * '''2010''' version: see {{l/vbzcart/code|maint/build-cat.php}} | |
| − | + | * {{l/sub|2009}} version - SQL statements executed directly from PHP code | |
| − | + | * {{l/sub|2008}} version - started in 2007 - a set of stored queries called from a stored procedure | |
| − | + | * {{l/sub|2006}} version | |
| − | + | ||
| − | + | It's interesting to note that I originally thought of SCM Groups as groups ''of Titles'' -- an explanation from the [[VbzCart/tables]] page on 2008-02-17 (and only removed on 2016-02-01) says: | |
| − | + | <blockquote>The key concept here is "catalog title groups" (CTGs). A CTG is a set of titles which are all available with the same set of options (e.g. sizes) at the same prices (e.g. $10 S, $11 M-XL, $12 2XL). The final vbz catalog (cat_items) is the result of a sort of vector multiplication of Titles (cat_titles) and CTGs plus any items in stock. | |
| − | < | + | </blockquote> |
| − | + | This conceptualization no longer works, as a SCM Title may have one or more SCM Groups -- e.g. if it has a set of standard sizes (like S-3X) but is also available in super-large sizes (4X+). | |
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Latest revision as of 11:07, 12 June 2017
Version
This is a tricky process which has been revised multiple times.
- 2017 version - 2016 code apparently never really got finished, and the Items table needs some flag changes
- 2016 version - webified version of 2010, with rules finally documented
- 2010 version: see maint/build-cat.php
- 2009 version - SQL statements executed directly from PHP code
- 2008 version - started in 2007 - a set of stored queries called from a stored procedure
- 2006 version
It's interesting to note that I originally thought of SCM Groups as groups of Titles -- an explanation from the VbzCart/tables page on 2008-02-17 (and only removed on 2016-02-01) says:
The key concept here is "catalog title groups" (CTGs). A CTG is a set of titles which are all available with the same set of options (e.g. sizes) at the same prices (e.g. $10 S, $11 M-XL, $12 2XL). The final vbz catalog (cat_items) is the result of a sort of vector multiplication of Titles (cat_titles) and CTGs plus any items in stock.
This conceptualization no longer works, as a SCM Title may have one or more SCM Groups -- e.g. if it has a set of standard sizes (like S-3X) but is also available in super-large sizes (4X+).