Module: Motr::Mods

Defined in:
lib/motr/mods.rb,
lib/motr/mods/scopeable.rb,
lib/motr/mods/sluggable.rb

Defined Under Namespace

Modules: Scopeable, Sluggable

Instance Method Summary collapse

Instance Method Details

#modded_with(*mods) ⇒ Object Also known as: motr, mod_with

modded_with provides the “hook” functionality to mod a model/class with a particular mod. Multiple mods can be applied at once, with options.

Examples:

Mod a model with the sluggable mod


class Awesome < ActiveRecord::Base
  modded_with :sluggable, :fields => :title, :as => :slug
end

Parameters:

  • *mods (Array) —

    Argument list of mods, and/or options



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# File 'lib/motr/mods.rb', line 17

def modded_with(*mods)
  
  include Motr::Mods::Scopeable
  
  options  = mods.extract_options!
  modules  = mods.map(&:to_sym).uniq
  
  modules.each do |mod|  
    const_name = mod.to_s.classify
    next unless Motr::Mods.const_defined?(:"#{const_name}")
    
    self.motr_mods << mod
    const_incl     = Motr::Mods.const_get(:"#{const_name}")        
    
    # Apply passed options to modules where applicable.
    # 
    if const_incl.instance_variable_defined?("@_mod_options")        
      mod_opts = const_incl.instance_variable_get("@_mod_options")

      new_opts = mod_opts.inject({}) do |hsh, option|
        next hsh unless options.key?(option)
        hsh.merge!(option => options.delete(option))
      end
      
      (class << self; self; end).class_eval do            
        define_method("#{mod}_mod_options"){ motr_mod_options[mod.to_s] }
        define_method("#{mod}_mod_options="){ |opts| motr_mod_options[mod.to_s] = opts }                       
      end
      
      write_inheritable_attribute(:motr_mod_options, {}) if motr_mod_options.nil?
      motr_mod_options[mod.to_s] = new_opts
      
    end

    if const_incl.instance_variable_defined?("@_mod_apply_callback")
      self.class_eval(&const_incl.instance_variable_get("@_mod_apply_callback"))
    end
    
    include const_incl
    Motr.track_mod(mod, self.name.to_s)
    
  end
  
end

#motr_mod_options ⇒ Object 



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# File 'lib/motr/mods.rb', line 62

def motr_mod_options
  read_inheritable_attribute(:motr_mod_options)
end