many-to-one problem
This WebDNA talk-list message is from 1998
It keeps the original formatting.
numero = 17128
interpreted = N
texte = I have to setup a shop with one single product db and multiple client db's.I need one main-database for SKU, ProductID, Category, Type, Description, HasPhoto, Photo, and many databases (one for each client) with SKU, ProductID, ItemPrice, Unit, UnitPrice.The clue is to let our customer upload price-lists for his clients with different selections of ProductID's and individually units and prices and maintaining just one db with the actual product information.Starting point for each client is a sorted category-list with unique names. And there is the problem: I step through ProductID's of the client_x.db and find each associated Category in the product.db with a lookup. Then, of course, I get all found categories and not unique names...I tried to solve this problem by filtering out dup names with variables: I want set a variable oldcat to the found Category and a variable newcat to the new found Category. If the two match, skip that line... ---------- [search ...] (process all ProductID's in client_x.db) [interpret]oldcat=[/interpret] (initialize variable) [founditems] [interpret]newcat=[lookup ...][/interpret] (get Category in product.db) [hideif [[newcat]=[oldcat]]] (skip, if they match) [Category]
[/hideif] [interpret][newcat]=[oldcat][/interpret] (prepare for the next loop) [/founditems] [/search] ---------- I know, this use of [interpret] is nonsense, but how can I set a string variable? I manage to set variables with [math] but not with a string.Am I completely wrong with this database design for WebCat? If I put all stuff in one database I would get up to 200 fields. Or I put at least all clients names into the product database to have a client_x_HasProduct field, or duplicate the categories in the clients, which I don't like either... I could even write a setup program which combines all databases to a huge single one after something changes - please, don�t tell me that ;-)TIA, Peter__________________________________________ Peter Ostry Ostry & Partner - Ostry Internet Solutions Auhofstrasse 29 A-1130 Vienna Austria fon ++43-1-877 74 54 fax ++43-1-877 74 54 po@ostry.com _______________ www.ostry.com
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I have to setup a shop with one single product db and multiple client db's.I need one main-database for SKU, ProductID, Category, Type, Description, HasPhoto, Photo, and many databases (one for each client) with SKU, ProductID, ItemPrice, Unit, UnitPrice.The clue is to let our customer upload price-lists for his clients with different selections of ProductID's and individually units and prices and maintaining just one db with the actual product information.Starting point for each client is a sorted category-list with unique names. And there is the problem: I step through ProductID's of the client_x.db and find each associated Category in the product.db with a lookup. Then, of course, I get all found categories and not unique names...I tried to solve this problem by filtering out dup names with variables: I want set a variable oldcat to the found Category and a variable newcat to the new found Category. If the two match, skip that line... ---------- [search ...] (process all ProductID's in client_x.db)
[interpret]oldcat=[/interpret] (initialize variable)
[founditems] [interpret]newcat=[lookup ...][/interpret] (get Category in product.db) [hideif [[newcat]=[oldcat]]] (skip, if they match) [Category]
[/hideif]
[interpret][newcat]=[oldcat][/interpret] (prepare for the next loop) [/founditems] [/search] ---------- I know, this use of
[interpret] is nonsense, but how can I set a string variable? I manage to set variables with
[math] but not with a string.Am I completely wrong with this database design for WebCat? If I put all stuff in one database I would get up to 200 fields. Or I put at least all clients names into the product database to have a client_x_HasProduct field, or duplicate the categories in the clients, which I don't like either... I could even write a setup program which combines all databases to a huge single one after something changes - please, don�t tell me that ;-)TIA, Peter__________________________________________ Peter Ostry Ostry & Partner - Ostry Internet Solutions Auhofstrasse 29 A-1130 Vienna Austria fon ++43-1-877 74 54 fax ++43-1-877 74 54 po@ostry.com _______________ www.ostry.com
Peter Ostry
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