Rails - Jul 2006 - Does Find also tell you a count of the array size?

When I use @persons = Find(:all) (for example) and I get back an array 
of persons, is there an easy way to tell how many rows the find 
returned?

I have been using Persons.count(:all) but you would think Find knows how 
many it returned -- is the count/array size stored somewhere in the ret 
array?

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On 7/20/06, Mike Kogan <mike@kogan.org> wrote:
> When I use @persons = Find(:all) (for example) and I get back an array
> of persons, is there an easy way to tell how many rows the find
> returned?
>
> I have been using Persons.count(:all) but you would think Find knows how
> many it returned -- is the count/array size stored somewhere in the ret
> array?

You can inspect your @persons array with irb.  @persons.methods.sort
for example will show you that you have a method called
''count''.



-- 
Greg Donald
http://destiney.com/

On 7/20/06, Mike Kogan <mike@kogan.org> wrote:
>
> When I use @persons = Find(:all) (for example) and I get back an array
> of persons, is there an easy way to tell how many rows the find
> returned?
>
> I have been using Persons.count(:all) but you would think Find knows how
> many it returned -- is the count/array size stored somewhere in the ret
> array?

As you stated the result is stored in an array, based on this you can use
the methods of the array to find out the number of entries:

@people = Person.find :all
@people_count = @people.size

References:

http://www.ruby-doc.org/core/classes/Array.html
http://www.manning.com/black/

Josh
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thanks, I found count and it is just what I needed ;)

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