Class: Trust::Controller::Resource::ResourceInfo

Inherits:
Info
  • Object
show all
Defined in:
lib/trust/controller/resource.rb

Overview

Resource::ResorceInfo

Resolves the resource in subject (see #Resource::Info)

Instance Attribute Summary

Attributes inherited from Info

#klass, #name, #params, #path, #real_class

Instance Method Summary collapse

Constructor Details

#initialize(model, params) ⇒ ResourceInfo

:nodoc:



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# File 'lib/trust/controller/resource.rb', line 252

def initialize(model, params)  #:nodoc:
  @path, params = model, params
  @klass = model.to_s.classify.constantize
  @name = model.to_s.singularize.underscore.gsub('/','_').to_sym
  ptr = @klass.descendants.detect do |c|
    params.key? var_name(c)
  end || @klass
  @real_class = ptr
  @data = params[var_name(ptr)]
end

Instance Method Details

#association_name(associated_resource) ⇒ Object

:nodoc



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# File 'lib/trust/controller/resource.rb', line 307

def association_name(associated_resource) # :nodoc
  name = associated_resource.as || plural_name
  associated_resource.object.class.reflect_on_association(name) ? name : klass.to_s.demodulize.underscore.pluralize        
end

#collection(associated_resource, instance = nil) ⇒ Object

Returns a collection that can be used for index, new and creation actions.

If specifying an instance, returns the full path for that instance. Can be used when not using shallow routes

Example

Assumption
  resource is instance of Lottery::Package #1 (@lottery_package)
  association is Lottery::Prizes
  if association is named lottery_prizes, then [@lottery_package, :lottery_prizes] is returned
  if association is named prizes, then [@lottery_package, :prizes] is returned
  if you specify an instance, then [@lottery_package, @prize] is returned



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# File 'lib/trust/controller/resource.rb', line 299

def collection(associated_resource, instance = nil)
  if associated_resource && associated_resource.object
    [associated_resource.object, instance || association_name(associated_resource)]
  else
    klass
  end
end

#plural_name ⇒ Object

Returns the plural name of the resource



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# File 'lib/trust/controller/resource.rb', line 264

def plural_name
  @plural_name ||= path.underscore.tr('/','_').to_sym
end

#relation(associated_resource) ⇒ Object

Returns an accessor for association. Tries with full name association first, and if that does not match, tries the demodularized association.

Explanation

Assuming 
  resource is instance of Lottery::Package #1 (@lottery_package)
  association is Lottery::Prizes
  if association is named lottery_prizes, then that association is returned
  if association is named prizes, then that association is returned



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# File 'lib/trust/controller/resource.rb', line 278

def relation(associated_resource)
  if associated_resource && associated_resource.object
    associated_resource.object.send(association_name(associated_resource))
  else
    klass
  end
end