Module: SimpleRecord::Callbacks

Included in:
Base
Defined in:
lib/simple_record/callbacks.rb

Constant Summary collapse

@@callbacks =

this bit of code creates a “run_blank” function for everything value in the @@callbacks array. this function can then be inserted in the appropriate place in the save, new, destroy, etc overrides basically, this is how we recreate the callback functions

["before_validation", "before_validation_on_create", "before_validation_on_update",
"after_validation", "after_validation_on_create", "after_validation_on_update",
"before_save", "before_create", "before_update", "before_destroy",
"after_create", "after_update", "after_save",
"after_destroy"]

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/simple_record/callbacks.rb', line 38

def self.included(base)
  #puts 'Callbacks included in ' + base.inspect

#        puts "setup callbacks #{base.inspect}"
  base.instance_eval <<-endofeval

        def callbacks
            @callbacks ||= {}
            @callbacks
        end


  endofeval

  @@callbacks.each do |callback|
    base.class_eval <<-endofeval

     def run_#{callback}
        # puts 'CLASS CALLBACKS for ' + self.inspect + ' = ' + self.class.callbacks.inspect
        return true if self.class.callbacks.nil?
        cnames = self.class.callbacks['#{callback}']
        cnames = [] if cnames.nil?
        # cnames += super.class.callbacks['#{callback}'] unless super.class.callbacks.nil?
        # puts 'cnames for #{callback} = ' + cnames.inspect
        return true if cnames.nil?
        cnames.each { |name|
            #puts 'run_  #{name}'
          if eval(name) == false # nil should be an ok return, only looking for false
            return false
          end
      }
      # super.run_#{callback}
      return true
    end

    endofeval

    #this bit of code creates a "run_blank" function for everything value in the @@callbacks array.
    #this function can then be inserted in the appropriate place in the save, new, destroy, etc overrides
    #basically, this is how we recreate the callback functions
    base.instance_eval <<-endofeval

#            puts 'defining callback=' + callback + ' for ' + self.inspect
        #we first have to make an initialized array for each of the callbacks, to prevent problems if they are not called

        def #{callback}(*args)
#                puts 'callback called in ' + self.inspect + ' with ' + args.inspect

            #make_dirty(arg_s, value)
            #self[arg.to_s]=value
            #puts 'value in callback #{callback}=' + value.to_s
            args.each do |arg|
                cnames = callbacks['#{callback}']
                #puts '\tcnames1=' + cnames.inspect + ' for class ' + self.inspect
                cnames = [] if cnames.nil?
                cnames << arg.to_s if cnames.index(arg.to_s).nil?
                #puts '\tcnames2=' + cnames.inspect
                callbacks['#{callback}'] = cnames
            end
        end

    endofeval
  end
end

.setup_callbacks(base) ⇒ Object 



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# File 'lib/simple_record/callbacks.rb', line 110

def self.setup_callbacks(base)

end

Instance Method Details

#after_destroy ⇒ Object 



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# File 'lib/simple_record/callbacks.rb', line 106

def after_destroy()
end

#before_destroy ⇒ Object 



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# File 'lib/simple_record/callbacks.rb', line 103

def before_destroy()
end