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Mlle

2010-May-07 13:35 UTC

Reject a nested object if all parameters of its own nested object are blank

Hello,

I have a model called Sample that has many Treatments.  A Treatment
can have many Results.

I want to reject the creation of a Treatment if all its fields are
blank and if all the fields of each of its nested Results are blank.

I have this in the Sample model:

accepts_nested_attributes_for :treatments, :allow_destroy =>
true, :reject_if => proc { |attributes|
attributes[''treatmenttype''].blank? &&
attributes[''author''].blank? &&
attributes[''results_attributes''].blank? }


This part:
attributes[''results_attributes''].blank?

only makes it reject the Treatment if there are no Results, but how
can I write the conditions so that it will reject the creation of a
Treatment if all the attirubtes of each Result are blank?  Right now
it creates the Treatment if the Result exists, regardless of whether
all its fields are blank.

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Fattah

2010-May-07 14:46 UTC

head link

RE: Reject a nested object if all parameters of its own nested object are blank

You can write method to validate nested result attributes.

Def valid_nested_results?(results_attributes)

results_attributes.each do|res_attr|
return false if(res_attr[''attr1''].blank? and
res_attr[''attr2''].blank? ....)
end

return true

end

And use this method in reject_if instead of
attributes[''results_attributes''].blank?

Or you can also define the appropriate :reject_if for nested attribute
definition for results in treatment model.

Does it help?

-----Original Message-----
From: Mlle <emstolfo-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Sent: Friday, 7 May 2010 7:35 PM
To: Ruby on Rails: Talk
<rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
Subject: [Rails] Reject a nested object if all parameters of its own nested
object are blank

Hello,

I have a model called Sample that has many Treatments.  A Treatment
can have many Results.

I want to reject the creation of a Treatment if all its fields are
blank and if all the fields of each of its nested Results are blank.

I have this in the Sample model:

accepts_nested_attributes_for :treatments, :allow_destroy =>
true, :reject_if => proc { |attributes|
attributes[''treatmenttype''].blank? &&
attributes[''author''].blank? &&
attributes[''results_attributes''].blank? }


This part:
attributes[''results_attributes''].blank?

only makes it reject the Treatment if there are no Results, but how
can I write the conditions so that it will reject the creation of a
Treatment if all the attirubtes of each Result are blank?  Right now
it creates the Treatment if the Result exists, regardless of whether
all its fields are blank.

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Mlle

2010-May-11 17:23 UTC

head link

Re: Reject a nested object if all parameters of its own nested object are blank

oh, it works if you reject the creation of the third-level nested
model in the second-level nested model.

On May 7, 4:46 pm, Fattah
<fattah.u...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
wrote:> You can write method to validate nested result attributes.
>
> Def valid_nested_results?(results_attributes)
>
> results_attributes.each do|res_attr|
> return false if(res_attr[''attr1''].blank? and
res_attr[''attr2''].blank? ....)
> end
>
> return true
>
> end
>
> And use this method in reject_if instead of
attributes[''results_attributes''].blank?
>
> Or you can also define the appropriate :reject_if for nested attribute
definition for results in treatment model.
>
> Does it help?
>
> -----Original Message-----
> From: Mlle <emsto...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> Sent: Friday, 7 May 2010 7:35 PM
> To: Ruby on Rails: Talk
<rubyonrails-talk-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
> Subject: [Rails] Reject a nested object if all parameters of its own nested
object are blank
>
> Hello,
>
> I have a model called Sample that has many Treatments.  A Treatment
> can have many Results.
>
> I want to reject the creation of a Treatment if all its fields are
> blank and if all the fields of each of its nested Results are blank.
>
> I have this in the Sample model:
>
> accepts_nested_attributes_for :treatments, :allow_destroy =>
> true, :reject_if => proc { |attributes|
> attributes[''treatmenttype''].blank? &&
attributes[''author''].blank? &&
> attributes[''results_attributes''].blank? }
>
> This part:
> attributes[''results_attributes''].blank?
>
> only makes it reject the Treatment if there are no Results, but how
> can I write the conditions so that it will reject the creation of a
> Treatment if all the attirubtes of each Result are blank?  Right now
> it creates the Treatment if the Result exists, regardless of whether
> all its fields are blank.
>
> --
> You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
> To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
> To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe@googlegroups.com.
> For more options, visit this group
athttp://groups.google.com/group/rubyonrails-talk?hl=en.
>
> --
> You received this message because you are subscribed to the Google Groups
"Ruby on Rails: Talk" group.
> To post to this group, send email to
rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
> To unsubscribe from this group, send email to
rubyonrails-talk+unsubscribe@googlegroups.com.
> For more options, visit this group
athttp://groups.google.com/group/rubyonrails-talk?hl=en.
>
>
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Rails - May 2010 - Reject a nested object if all parameters of its own nested object are blank

Reject a nested object if all parameters of its own nested object are blank

RE: Reject a nested object if all parameters of its own nested object are blank

Re: Reject a nested object if all parameters of its own nested object are blank