Re: _ in front of field name
This WebDNA talk-list message is from 1998
It keeps the original formatting.
numero = 18913
interpreted = N
texte = >>At 13:31 Uhr 15.07.1998, Sue Ann Sanders wrote: >>>What is the significance of a _ in front of the field names within a >>>form?At 14:41 Uhr 15.07.1998, Sue Ann Sanders wrote: >Is there documentation on this _ thing?No, you can use anything. It is just helpful for the programmer and has no special meaning to WebCat. Name it sue.Date if you like. I recommend to use a prefix only, not a suffix to mark your fields and variables. This is easier to handle. If you submit a form with WebCat ALL variables and fields go to the following page. You can check this with [formvariables]. If you have your special prefix, it is easy to find out wether a variable is a form field or not. >Is there a list of reserved words?Yes for variables: all commands of WebCat ;-) (a form field is a variable too, once the form got submitted) But instead comparing all self-invented name against the list of commands, we simply add something to the name - to avoid conflicts.Generally: if you have your own unique names for fields and variables, you are on the safe side. For example v.MyName for a variable and f.MyName for a field will let you easily find out which kind of variable you are dealing with, and they get never confused with WebCat-commands.To see what we are talking about, set up a simple page with a form like this:
And on the page response.tpl you write: [formvariables] [name]=[value]
[/formvariables]Then fill in the fields and submit the form: response.tpl will list all variables it got from the previous page, line by line. Now you can imagine that it is quite easy to find out which variables are user-entered fields and do some action on them. Peter__________________________________________ Peter Ostry - po@ostry.com - www.ostry.com Ostry & Partner - Ostry Internet Solutions Auhofstrasse 29 A-1130 Vienna Austria fon ++43-1-8777454 fax ++43-1-8777454-21
Associated Messages, from the most recent to the oldest:
>>At 13:31 Uhr 15.07.1998, Sue Ann Sanders wrote: >>>What is the significance of a _ in front of the field names within a >>>form?At 14:41 Uhr 15.07.1998, Sue Ann Sanders wrote: >Is there documentation on this _ thing?No, you can use anything. It is just helpful for the programmer and has no special meaning to WebCat. Name it sue.Date if you like. I recommend to use a prefix only, not a suffix to mark your fields and variables. This is easier to handle. If you submit a form with WebCat ALL variables and fields go to the following page. You can check this with
[formvariables]. If you have your special prefix, it is easy to find out wether a variable is a form field or not. >Is there a list of reserved words?Yes for variables: all commands of WebCat ;-) (a form field is a variable too, once the form got submitted) But instead comparing all self-invented name against the list of commands, we simply add something to the name - to avoid conflicts.Generally: if you have your own unique names for fields and variables, you are on the safe side. For example v.MyName for a variable and f.MyName for a field will let you easily find out which kind of variable you are dealing with, and they get never confused with WebCat-commands.To see what we are talking about, set up a simple page with a form like this:
And on the page response.tpl you write:
[formvariables] [name]=[value]
[/formvariables]Then fill in the fields and submit the form: response.tpl will list all variables it got from the previous page, line by line. Now you can imagine that it is quite easy to find out which variables are user-entered fields and do some action on them. Peter__________________________________________ Peter Ostry - po@ostry.com - www.ostry.com Ostry & Partner - Ostry Internet Solutions Auhofstrasse 29 A-1130 Vienna Austria fon ++43-1-8777454 fax ++43-1-8777454-21
Peter Ostry
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