hi all,
I am just setting out on the OO express (couldnt find any oo books for cf,
so im using action script book instead!), so i thought i would create a
group of cfcs, whcih will create a form dynamically, validate and return
any errors automatically so i dont have to keep binding errors and data
back to the form.
I currently have 4 objects.
tempForm.cfc
This creates a copy of the form data values on re post, which, if any
errors are found, are bound to the form elements when displayed to the
user
ElementBuilder.cfc
Wherever i want a form element, i invoke the makeformelement function
(below) and the function returns a html string of the form element
required. n.b During this stage, if the error object is initialised
(signifying a re post and the validator finding an error) then the form
values are taken from tempform, instead of the values passed
(session.myName)
#application.formbuilder.makeFormElement("name","text",20,50,session.myName)#
Validator.cfc
This is passed the arguments collection:form, and then validates each form
element based upon a prefix it is given s_=string, n_=numeric etc.
Errors.cfc
If the validator finds any problems then the error object is initialised,
and gets passed the error and field name etc to display to the user
This just a very brief explanation, but am i on the right track? Should
all of the above be bundled into one cfc as they are all working on the
same object (theform). Is this an ok use of a cfc function (elementbuilder
cfc) or should this really be done with a custom tag? Personally, as the
function is returning 1 value, it seems ok. just after some views on it
thats all. I havent got any cf chums you see, my friends work on the dark
side (asp.net), cfug in uk is not very good :-(
Also, if OO programming is the future, then why arent there any books for
cf out there. I have many books on cf, and each one has about two pages on
oop, "this is an object, this a class", but they really dont explain the
real benefits of oop, and how cf fits in. i spent a year learning how ot
program in cf (the traditional way) and it was only once i found cfaussie
that i found there was a better way! The right way! the OOP way! But if
there had been a book out there on oop when i took up cf, then i would
have got it then, and be good at it now!
Sorry went off on one there!
cheers in advance!
jamo
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