unknown wrote:
Hi –
On Sat, 2 Dec 2006, Blake M. wrote:
def component(uniqueId) # note: uniqueId is a string
@components.find { |comp| comp.getUniqueId == uniqueId }
end
end=========================================================
class SearchWidgetComponent
:attr_reader :uniqueIdNo : on attr_reader; it’s a method:
attr_reader :uniqueID
def getUniqueId
@uniqueId
endYou’ve now got two “get” methods for @uniqueID: the one attr_reader
created (which will be called uniqueID), and the one you’ve written.end
=============================
class SearchWidgetComparisonComponentdef getUniqueId
supersuper won’t work here, unless this class is a subclass of
SearchWidgetComponent. And if it is a subclass, it will have that
method anyway. And… you don’t need the method in the first place,
because of attr_readerend
endAlso, you need a way to set as well as get your uniqueID values,
unless they’re going to be something inherent in the object (the
object’s object_id). Do you want attr_writer too?David
Noted, and changed. Sorry if I’m dragging this out, I know I left out a
couple details in the code I showed. Indeed
SearchWidgetComparisonComponent does, and has been extending
SearchWidgetComponent. My new code is like this:
class SearchWidget
def initialize
@components = Array.new
end
def add_component(component)
@components << component # these will always be subclass of
SearchWidgetComponent
end
def printcomps # i call this from index.rhtml, and it prints correctly
the 2 different component ids
str = “”
@components.each_with_index do |comp, index|
str += @components[index].uniqueId
end
str
end
def component(uniqueId)
@components.find { |comp| comp.uniqueId == uniqueId }
end
end
==================================
class SearchWidgetComponent
attr_accessor :uniqueId
def initialize(label, uniqueId) # see I pass a string as the id when I
init
@label = label
@uniqueId = uniqueId
end
end
class SearchWidgetComparisonComponent < SearchWidgetComponent
def initialize(label, uniqueId)
super(label, uniqueId)
@dbFields = Array.new
@showCalendar = false;
end
end
in my index.rhtml, I have (please note I’ve added comments below only to
this post, they are not in the source):
<%= @sw.printcomps %> # prints “swCompareComp1”, and “anoth” (my two
unique ids)
should return a SearchWidgetComparisonComponent
<% @obj = @sw.component(“swCompareComp1”) %>
call method stylize() on the object
<%= @obj.stylize(“sdbfPulldown”, “scPulldown”, “svfClass”)%>
; however, the line that calls the stylize() method returns an error
saying " NoMethodError in Region#index…You have a nil object when
you didn’t expect it! The error occured while evaluating nil.stylize"
Thanks ahead for the help yo. I’ve been tearin my hair out for 5 hours
now.