Re: Trying to loop for letters
This WebDNA talk-list message is from 1999
It keeps the original formatting.
numero = 23696
interpreted = N
texte = >I'm wondering what the best method would be to generate a heading at the top >of a results page that gives a listing of the letters in the alphabet as >anchored links (like the results page for http://maps.nemonline.org/). It's >a no brainer to just put a hard coded list there but how would I go about >only listing the letters that have results in the search, and then break up >the listing into the alphabetical sections. Is this the kind of thing that >would require 26 showifs at the top of the page setting variables and then >26 more showifs in the listing or is there a more elegant way?It's pretty tough to know exactly which letters were found in a search, because you'd have to visit each [founditem] in order to test it. But it's do-able if you don't mind a little extra work. The idea is to create a small database of 26 letters where each record indicates how many were found of that letter. Then zip thru the [founditems] and do a replace/increment for each matching letter.-- letters.db -- Letter HowMany A 15 B 3 C 0 ..... Z 2So of course you'd first need to clear out any old entries in the database with [Replace db=letters.db&neLetterdata=[blank]]HowMany=0[/Replace]Then you'd loop thru the [Founditems] and check the first letter of the result field and increment by 1 (any unusual carriage returns here are artifacts of this email,and should not be copied verbatim)[FoundItems] [text]theLetter=[GetChars start=1&end=1][YOURFIELD][/GetChars][/text] [Replace db=letters.db&eqLetterdata=[theLetter]]HowMany=[Math][Lookup db=letters.db&lookInField=Letter&value=[theLetter]]+1[/Math][/Replace] [/FoundItems]Now you've got a letters.db database you can use to display your hyperlink list with, and the added benefit of knowing exactly how *many* are in each section as well!Technical Support | ==== eCommerce and Beyond ==== Pacific Coast Software | WebCatalog, WebMerchant, 11770 Bernardo Plaza Court | SiteEdit Pro, PhotoMaster, San Diego, CA 92128 | Typhoon 619/675-1106 Fax: 619/675-0372 | http://www.smithmicro.com/
Associated Messages, from the most recent to the oldest:
>I'm wondering what the best method would be to generate a heading at the top >of a results page that gives a listing of the letters in the alphabet as >anchored links (like the results page for http://maps.nemonline.org/). It's >a no brainer to just put a hard coded list there but how would I go about >only listing the letters that have results in the search, and then break up >the listing into the alphabetical sections. Is this the kind of thing that >would require 26 showifs at the top of the page setting variables and then >26 more showifs in the listing or is there a more elegant way?It's pretty tough to know exactly which letters were found in a search, because you'd have to visit each [founditem] in order to test it. But it's do-able if you don't mind a little extra work. The idea is to create a small database of 26 letters where each record indicates how many were found of that letter. Then zip thru the
[founditems] and do a replace/increment for each matching letter.-- letters.db -- Letter HowMany A 15 B 3 C 0 ..... Z 2So of course you'd first need to clear out any old entries in the database with [Replace db=letters.db&neLetterdata=[blank]]HowMany=0[/Replace]Then you'd loop thru the
[founditems] and check the first letter of the result field and increment by 1 (any unusual carriage returns here are artifacts of this email,and should not be copied verbatim)
[founditems] [text]theLetter=[GetChars start=1&end=1][YOURFIELD][/GetChars][/text] [Replace db=letters.db&eqLetterdata=[theLetter]]HowMany=
[math][Lookup db=letters.db&lookInField=Letter&value=[theLetter]]+1[/Math][/Replace] [/FoundItems]Now you've got a letters.db database you can use to display your hyperlink list with, and the added benefit of knowing exactly how *many* are in each section as well!Technical Support | ==== eCommerce and Beyond ==== Pacific Coast Software | WebCatalog, WebMerchant, 11770 Bernardo Plaza Court | SiteEdit Pro, PhotoMaster, San Diego, CA 92128 | Typhoon 619/675-1106 Fax: 619/675-0372 | http://www.smithmicro.com/
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