Questions tagged [alias-method]
32 questions
3
votes
1 answer
alias_method, alias_method_chain, and self.included
I'm having a little difficulty understanding alias_method/alias_method_chain. I have the following code:
module ActionView::Helpers
module FormHelper
alias_method :form_for_without_cherries, :form_for
def form_for(record, options = {},…
PlankTon
- 12,443
- 16
- 84
- 153
2
votes
1 answer
ruby method_alias in inherited class
I'm deeping into ruby metaprogramming and have next question.
Example:
module ExampleAliaser
def do_example_alias(prefix=:origin)
class_eval <<-EOS
class << self
alias_method :#{prefix}_example, :example
def…
Fivell
- 11,829
- 3
- 61
- 99
2
votes
3 answers
OO-Perl Aliasing Class Attributes
I have a module that I'm working on. I am setting up a few attributes like this:
$self->{FOO};
$self->{BAR};
$self->{FOOBAR};
And, I want to use AUTOLOAD to help create methods for accessing these attributes. For example, $foo->Bar() returns the…
David W.
- 281
- 2
- 4
2
votes
1 answer
ruby alias_method in class method
It seems that alias_method doesn't work the same way inside a class << self block as it does outside. Specifically, when I use alias_method for an instance method and subsequently override the method, the alias name can be used to access the…
Andrew Schwartz
- 4,440
- 3
- 25
- 58
2
votes
1 answer
alias_attribute and creating and method with the original attribute name causes a loop
Im trying to dynamically create a method chain in one attribute in my model.
By now I have this function:
def create_filtered_attribute(attribute_name)
alias_attribute "#{attribute_name}_without_filter", attribute_name
…
Tiago
- 2,966
- 4
- 33
- 41
2
votes
1 answer
Is it possible to alias to_s?
Instead of overriding to_s in my model I'd like to alias it to an existing method called full_name.
Both alias and alias_method don't seem to work as expected.
Using alias
class Person < ActiveRecord::Base
# ... other model code.
alias to_s…
Joshua Pinter
- 45,245
- 23
- 243
- 245
2
votes
2 answers
ruby on rails add functionality to model property change
In my rails model, I have a decimal property called employer_wcb. I would like it if, when employer_wcb was changed, a dirty bit was set to true. I'd like to override the employer_wcb setter method. Any way to do so (in particular using…
Daniel
- 16,026
- 18
- 65
- 89
1
vote
1 answer
class << self, alias_method, and monkey patching Mechanize::Cookie
I have an issue with Mechanize::Cookie misbehaving and I want to trying to monkey patch it.
My code:
class Mechanize::Cookie
class << self; alias_method :old_parse, :parse end
def self.parse(uri, str, log = Mechanize.log)
puts 'new parse!'
…
pguardiario
- 53,827
- 19
- 119
- 159
1
vote
2 answers
Improving on hacky ruby 'method_alias' fix for conflicting redmine plugins?
Using redmine 3.x, I have a dependency conflict between two plugins - redmine subtask list accordion and Subtask list inherited fields. Installing both raises 500 errors when trying to view an issue.
ActionView::Template::Error (undefined method…
Ben S
- 95
- 1
- 7
1
vote
2 answers
When should I use an Alias Method? - Ruby
I've looked through and haven't seen an answer to:
What would you use an alias method?
class Vampire
attr_reader :name, :thirsty
alias_method :thirsty?, :thirsty
end
Is the only reason I would use one is to be able to use a question mark with…
mph85
- 1,276
- 4
- 19
- 39
1
vote
1 answer
Add alias to logical operators
I have ruby project (without rails) and i want to add aliases to the logical AND and OR operators for my class. I have already overloaded logical operators for my class, but if I add alias_method :foo, :or and use like class_example_1 foo…
Egor Pavlov
- 23
- 4
0
votes
1 answer
undefined method for model class that I want no modify by alias_method
I tried to path the ActiveRecord model validation -
require_dependency "issue"
module IssuePath
def self.included(base) # :nodoc:
base.send(:include, InstanceMethods)
base.class_eval do
alias_method :strict_validate_issue,…
Rostislav Ruban
- 127
- 10
0
votes
0 answers
Rails Monkey Patch alias_method cause no method error
I am trying to monkey patch rails Rails.cache.fetch/read method, and add my extra log on every fetch/read happened, but i got some other error that i can't google any answer.
here is my monkey patch code
module ActiveSupport
module Cache
…
Wallace
- 151
- 1
- 9
0
votes
1 answer
ruby self.inherited alias_method
class Base
def sam
"I m the base"
end
def self.inherited(base)
alias_method :old_sam, :sam
base.class_eval do
def sam
old_sam
p "Inside inherited"
end
end
super
end
end
class Derived < Base
…
Subin
- 33
- 4
0
votes
1 answer
How to access 'layout' of parent controller?
In one of my controllers I want to change the layout given some condition, and otherwise keep the default layout used by the parent ApplicationController (was "application" initially, but I'm trying some others now). Tried accessing the "layout"…
shaimo
- 376
- 3
- 17