Re: [WebDNA] How to use [function]
This WebDNA talk-list message is from 2012
It keeps the original formatting.
numero = 108659
interpreted = N
texte = Lawrence I tend to use functions where I have a complicated bit of logic (either = within or without a search context), more often when I would prefer no = white space in between lines you can do it like this [hideif [myVar]=3D1][!] [/!][text]myNewVar=3D100[/text][!] [/!][/hideif] is the same as this [function name=3DgenerateNewVar] [hideif [myVar]=3D1] [text scope=3Dglobal]myNewVar=3D100[/text] [/hideif] [return][/return] [/function][generateNewVar] I find the 2nd one easier to read. It is especially handy when generating XML, I find. Alternatively I would use it for text translation - [translateMyText = textToTranslate=3D[myDateVar]&language=3Dfrench] - and MySQL functions - = somehow it's easier to print out [findMyRecords myVar=3D1] than do all = the steps necessary for=20 Normally a repeated bit of logic where the output is always in the same = format, but small input elements change is where I would use it most. In = the example you have given, I would almost always write this as inline = code. If, however, you wanted to have a find function that always = printed the results out in the same manner, you could do the following: [function name=3DgetResults] [search db=3D[whichDb].db&&neSKUdata=3D[blank]] [founditems] [return]
[SKU]-[name]
[/return] [/founditems] [showif [numfound]=3D0] [return]Nothing to see here[/return] [/showif] [/search] [/function] and on your page
[getResults whichDb=3DmyDb]
and again somewhere else
[getResults whichDb=3DanotherDb]
Hope this helps.... TC > Toby,=20 > I'm trying to understand in which case I should use the [function] or = not. > Your example is clear, It looks like it would be nice to have all the = webdna code in separate files, and have only the result called in the = page, that would make page codes clear. > for the break/stop the documentation says : > "'The [return] context does NOT 'break out' of a function call, so it = is possible to use one or more [return] contexts to 'tailor' the = functions output. " >=20 > Kenneth,=20 > how would you use an array with this kind of search function? >=20 > Thanks > Lawrence
Associated Messages, from the most recent to the oldest:
Lawrence I tend to use functions where I have a complicated bit of logic (either = within or without a search context), more often when I would prefer no = white space in between lines you can do it like this [hideif [myVar]=3D1]
[!] [/!]
[text]myNewVar=3D100[/text]
[!] [/!][/hideif] is the same as this [function name=3DgenerateNewVar] [hideif [myVar]=3D1] [text scope=3Dglobal]myNewVar=3D100[/text] [/hideif]
[return][/return] [/function][generateNewVar] I find the 2nd one easier to read. It is especially handy when generating XML, I find. Alternatively I would use it for text translation - [translateMyText = textToTranslate=3D[myDateVar]&language=3Dfrench] - and MySQL functions - = somehow it's easier to print out [findMyRecords myVar=3D1] than do all = the steps necessary for=20 Normally a repeated bit of logic where the output is always in the same = format, but small input elements change is where I would use it most. In = the example you have given, I would almost always write this as inline = code. If, however, you wanted to have a find function that always = printed the results out in the same manner, you could do the following: [function name=3DgetResults] [search db=3D[whichDb].db&&neSKUdata=3D[blank]]
[founditems] [return][SKU]-[name]
[/return] [/founditems] [showif [numfound]=3D0]
[return]Nothing to see here[/return] [/showif] [/search] [/function] and on your page
[getResults whichDb=3DmyDb]
and again somewhere else
[getResults whichDb=3DanotherDb]
Hope this helps.... TC > Toby,=20 > I'm trying to understand in which case I should use the
[function] or = not. > Your example is clear, It looks like it would be nice to have all the = webdna code in separate files, and have only the result called in the = page, that would make page codes clear. > for the break/stop the documentation says : > "'The
[return] context does NOT 'break out' of a function call, so it = is possible to use one or more
[return] contexts to 'tailor' the = functions output. " >=20 > Kenneth,=20 > how would you use an array with this kind of search function? >=20 > Thanks > Lawrence
Toby Cox
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