The truncate result is pool mostly time, so i think a more meaningful is 
useful

在 2013年6月2日星期日UTC+8上午4时30分12秒,tamouse写道:
>
> soffolk Zhu <zlx....@gmail.com <javascript:>> wrote: 
> > sometimes we need to truncate a long text more smart. 
> > 
> >     The Model layer represents your domain model (such as Account, 
> Product, Person, Post, etc.) and encapsulates 
> >     the business logic that is specific to your application. In Rails, 
> database-backed model classes are derived 
> >     from ActiveRecord::Base. Active Record allows you to present the 
> data from database rows as objects and 
> >     embellish these data objects with business logic methods. Although 
> most Rails models are backed by a 
> >     database, models can also be ordinary Ruby classes, or Ruby classes 
> that implement a set of interfaces as 
> >     provided by the Active Model module. You can read more about Active 
> Record in its README. 
> >     
> > to 
> > 
> >     The Model layer represents your domain model (such as Account, 
> Product, Person, Post, etc.) and encapsulates 
> >     the business logic that is specific to your application. 
> >     
> > I create a method content_truncate to implementation my requirement. But 
> it is so immature for merge into 
> > activesupport 
> > 
> > So welcome advices 
>
> I'd use it either in a validation or a callback to the model. 
>
>

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