Rails - Jul 2006 - add method parameter for form helper

Hello,

Most of the form helpers are build using Object / Method without the 
possibility of using a method parameter (as I know ...)

    text_field(object_name, method, options = {})

how do you solve this problem ?

-> (I did my own helper and generate the html ... well I think there is 
a better way;-)
-> do I have to overide text_field(object_name, method, parameters {}, 
options = {})

thanks
arnaud

Hi Arnaud,

Arnaud Garcia wrote:
> Most of the form helpers are build using Object / Method without the 
> possibility of using a method parameter (as I know ...)
>
>    text_field(object_name, method, options = {})
>
> how do you solve this problem ?
Could you say more about exactly what you''re trying to accomplish? 
I''m not
sure what you mean by ''method parameter''.

Best regards,
Bill

hi bill,
Instead of a simple object method (without parameter) Person.firstName 
=> text_field("Person","firstName")
I have something like Person.display("firstName") so the text_field 
cannot be populate by the simple call Person.display ... I need to give 
the parameter for display method ...

Thanks for help,

arnaud


Bill Walton a ?crit :
> Hi Arnaud,
>
> Arnaud Garcia wrote:
>
>> Most of the form helpers are build using Object / Method without the 
>> possibility of using a method parameter (as I know ...)
>>
>>    text_field(object_name, method, options = {})
>>
>> how do you solve this problem ?
>
>
> Could you say more about exactly what you''re trying to accomplish?
> I''m not sure what you mean by ''method
parameter''.
>
> Best regards,
> Bill
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>

Hi Arnaud,

Arnaud Garcia wrote:
> Instead of a simple object method (without parameter) Person.firstName
=>
> text_field("Person","firstName")
> I have something like Person.display("firstName") so the
text_field cannot
> be populate by the simple call Person.display ... I need to give the 
> parameter for display method ...
text_field is already bound to the ''firstName'' attribute of
the ''Person''
object in your example.  You don''t need a display method to have your
view
display the value.  You need to pass the ''Person'' object to
the view from
the controller and text_field will automatically display the value of the 
attribute.  To illustrate, let''s assume you''ve already entered
a record for
''Dave'' and now want to edit it.

In your edit.rhtml view, you''ll have statements like...

<%= text_field ''Person'', ''firstName''
%>
<%= text_field ''Person'', ''lastName'' %>
<%= text_field ''Person'', ''address'' %>

In your controller, your edit action / method will look like...

def edit
  @Person = Actor.find(:first, :conditions ["firstName = ?",
''Dave''] )
end

The controller code above assumes ''Actor'' is the class name of
the Person
object.

One more note...  you might want to take a look at the wiki or pick up a 
book or two to get a handle on Rails naming conventions.  Understanding 
those conventions is a necessary first-step towards success with Rails.

hth,
Bill

sorry bill but Person.firstname was just an example, I know that rails 
will automatically call Person.firstname and populate the textfield ...I 
just write it to illustrate the mechanism that rails "just" call a 
method on the object... The problem is how you do if you want to 
populate with Object.method(param1) ?

Bill Walton a ?crit :
> Hi Arnaud,
>
> Arnaud Garcia wrote:
>
>> Instead of a simple object method (without parameter) 
>> Person.firstName =>
text_field("Person","firstName")
>> I have something like Person.display("firstName") so the
text_field
>> cannot be populate by the simple call Person.display ... I need to 
>> give the parameter for display method ...
>
>
> text_field is already bound to the ''firstName'' attribute
of the
> ''Person'' object in your example.  You don''t need
a display method to
> have your view display the value.  You need to pass the
''Person''
> object to the view from the controller and text_field will 
> automatically display the value of the attribute.  To illustrate, 
> let''s assume you''ve already entered a record for
''Dave'' and now want
> to edit it.
>
> In your edit.rhtml view, you''ll have statements like...
>
> <%= text_field ''Person'', ''firstName''
%>
> <%= text_field ''Person'', ''lastName''
%>
> <%= text_field ''Person'', ''address''
%>
>
> In your controller, your edit action / method will look like...
>
> def edit
>  @Person = Actor.find(:first, :conditions ["firstName = ?",
''Dave''] )
> end
>
> The controller code above assumes ''Actor'' is the class
name of the
> Person object.
>
> One more note...  you might want to take a look at the wiki or pick up 
> a book or two to get a handle on Rails naming conventions.  
> Understanding those conventions is a necessary first-step towards 
> success with Rails.
>
> hth,
> Bill
> _______________________________________________
> Rails mailing list
> Rails@lists.rubyonrails.org
> http://lists.rubyonrails.org/mailman/listinfo/rails
>