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Mage

2006-Aug-24 21:35 UTC

[Rails] return from an action

Hello,

I would like to exit an action, however, I cannot use return because it 
should be called from another method:

def click
    requires_valid_login
    other_things
end

protected
def requires_valid_login
    if !@user
       flash[:error] = ''you must be logged for view this page''
       redirect_to :back
    end
end

Is there any elegant way to exit from action :click and don''t process 
"other things"?

I could use:
    requires_valid_login or return

However I don''t like this.

       Mage


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Carl Fyffe

2006-Aug-24 21:54 UTC

head link

[Rails] Re: return from an action

Hope this helps...

def click
  return unless valid_login
  other_things
end

 def valid_login
     if !@user
        flash[:error] = ''you must be logged for view this
page''
        redirect_to :back
        false
     end
     true
 end


On 8/24/06, Mage <mage-EXzRiRwUxcg@public.gmane.org>
wrote:>
>           Hello,
>
> I would like to exit an action, however, I cannot use return because it
> should be called from another method:
>
> def click
>     requires_valid_login
>     other_things
> end
>
> protected
> def requires_valid_login
>     if !@user
>        flash[:error] = ''you must be logged for view this
page''
>        redirect_to :back
>     end
> end
>
> Is there any elegant way to exit from action :click and don''t
process
> "other things"?
>
> I could use:
>     requires_valid_login or return
>
> However I don''t like this.
>
>        Mage
>
>
> >
>
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Carl Fyffe

2006-Aug-24 21:55 UTC

head link

[Rails] Re: return from an action

Uhhhh to keep the syntax ruby-like you should rename valid_login to valid_login?

On 8/24/06, Carl Fyffe
<carl.fyffe-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> Hope this helps...
>
> def click
>   return unless valid_login
>   other_things
> end
>
>  def valid_login
>      if !@user
>         flash[:error] = ''you must be logged for view this
page''
>         redirect_to :back
>         false
>      end
>      true
>  end
>
>
> On 8/24/06, Mage <mage-EXzRiRwUxcg@public.gmane.org> wrote:
> >
> >           Hello,
> >
> > I would like to exit an action, however, I cannot use return because
it
> > should be called from another method:
> >
> > def click
> >     requires_valid_login
> >     other_things
> > end
> >
> > protected
> > def requires_valid_login
> >     if !@user
> >        flash[:error] = ''you must be logged for view this
page''
> >        redirect_to :back
> >     end
> > end
> >
> > Is there any elegant way to exit from action :click and don''t
process
> > "other things"?
> >
> > I could use:
> >     requires_valid_login or return
> >
> > However I don''t like this.
> >
> >        Mage
> >
> >
> > > >
> >
>
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Jeremy Kemper

2006-Aug-24 22:02 UTC

head link

[Rails] Re: return from an action

On 8/24/06, Mage <mage-EXzRiRwUxcg@public.gmane.org>
wrote:>
>
>           Hello,
>
> I would like to exit an action, however, I cannot use return because it
> should be called from another method:
>
> def click
>     requires_valid_login
>     other_things
> end
>
> protected
> def requires_valid_login
>     if !@user
>        flash[:error] = ''you must be logged for view this
page''
>        redirect_to :back
>     end
> end
>
> Is there any elegant way to exit from action :click and don''t
process
> "other things"?
>
> I could use:
>     requires_valid_login or return

Use a before_filter and return false, aborting the action.

jeremy


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Mage

2006-Aug-24 22:24 UTC

head link

[Rails] Re: return from an action

Jeremy Kemper wrote:
>
>
> Use a before_filter and return false, aborting the action.
Thank you, I am already using before filter which does the 
authentication, however I don''t want to abort every actions, only some 
of them.

Is it possible to abort the action inside from a method called by the 
action itself?

       Mage





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Mage

2006-Aug-24 22:25 UTC

head link

[Rails] Re: return from an action

Carl Fyffe wrote:
>Hope this helps...
>
>def click
>  return unless valid_login
>  other_things
>end
>
> 
>That''s what I am trying to avoid, the explicit return from the action 
itself.

       Mage



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Al Evans

2006-Aug-25 14:33 UTC

head link

Re: return from an action

Mage wrote:> Jeremy Kemper wrote:
> 
>>
>>
>> Use a before_filter and return false, aborting the action.
> 
> Thank you, I am already using before filter which does the
> authentication, however I don''t want to abort every actions, only
some
> of them.
For example:

before_filter :valid_login, :except => :login

--Al Evans

-- 
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Alex Wayne

2006-Aug-25 16:01 UTC

head link

Re: return from an action

Al Evans wrote:> Mage wrote:
>> Jeremy Kemper wrote:
>> 
>>>
>>>
>>> Use a before_filter and return false, aborting the action.
>> 
>> Thank you, I am already using before filter which does the
>> authentication, however I don''t want to abort every actions,
only some
>> of them.
> 
> For example:
> 
> before_filter :valid_login, :except => :login
> 
> --Al Evans
Yes before_filter accepts some options that let you skip filters on 
certain actions.  :except is one, and :only is the other.  You can give 
it a single action name or an array of action names.

  before_filter :valid_login, :only => [:protected_one, :protected_two]

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Rails - Aug 2006 - return from an action

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