What best practices of cfc

What do you think of this code? I use right of arguments? Can I use the argmuents collection instead? Cfparam becomes redundant when you use cfargument? Thanks for the advice, I try just to understand these last points thanks again

>
> I have (as a rule, if it can be avoided ~) acceding not external scopes
> directly into a CFC method. It breaks encapsulation and made less code
> reusable.
> hmm, I don't understand - I was setting a default value for the session.getemp session
> so it has been inside, apologies, I don't understand that we

Maybe it's a good idea if read you on the encapsulation and data hiding.
Or the fundamental principles of programming procedure (leaving aside the OO principles
as a first step).

Your function could well be designed to set the values default to * a user object *,.
but where this user object is stored and how much should really be his
company. If possible a function should do something:
-validate a user object;
-Put it in the session.

It's two things.

What happens on the track when you want valdiate a user but object
* don't * want to session? It could be part of your process of
creation of the user record in the first place, before putting it in the DB.
You don't want to write another function which is almost the same.
with the exception of the end of the session. So you have two pieces of code to maintain
If something changes. It is, of course, just the visible part of the iceberg.

My approach here would be to put a vanilla user object (a structure in the)
CFC instance taking bits and user data elements), and * back * that.
Then in your calling code you assign to the scope of the session.

Google "getters and setters.

In general, a function should only manipulate data in its own scope of application
(past arguments and local variables in the function (or the CFC
instance) and then go back a result based on this manipulation. They
should not manipulate anything "outside". The session scope is
intrinsically outdoors.

Except that I would have to this would be to have a session manager, which is
especially used to hold the values in the scope of the session. While its
job: managaing the scope of the session. He don't care about whether it is a user
permissions object or authorization, or a [something] State that
persists for the session; It handles just to put things in and to
things out of session.

However, for good practice, there is a situation where it is not the
best approach. However, I don't think this falls into this category.

Dan probably roll his eyes and goes 'too complicated', but I think that
We differ in opinion as to what is a good level of "complication" (I wish I
you mean "abstraction"), which is too much and what is too little ;-)

>
>
> Why don't you param just for a struct in the first place?
> OK so like so:
>

N ° you don't want it to be a string, even a vacuum. Param to a
* structure *:

> True if the values of arguments are not passed in there is an error thrown.
> That's why I was using the cfparam to stop all errors, if they were not passed

The error would be thrown by the code that performs the function call, so the
params would not get a look.

> so it should be
>
> where can I "both"?

Just the VAR statement is fine.

>
> no name
> Considered generally bad form to produce anything from a function.
>
> I'm sorry that you completely lost me on this one!

I mean exactly what I said (that is to say: I was not at an angle). In general, the
the code in a function should not out anything. An if function
* Return * something, no exit it.

I can't recommend which specific books / web pages to read, but I recommend
you google on the place of writing functions coding practices.

--
Adam

Tags: ColdFusion

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