Re: Suggestion: default values for models

Allen Madsen
Thu, 18 Oct 2012 15:00:46 -0000

This is relevant:
http://stackoverflow.com/questions/328525/what-is-the-best-way-to-set-default-values-in-activerecord

They mention using after_initialize.

Allen Madsen
http://www.allenmadsen.com


On Thu, Oct 18, 2012 at 8:50 AM, Gabriel Sobrinho <
gabriel.sobrinho@gmail.com> wrote:

> That is a problem for me either.
>
> I can''t use before_save callback because I need to show the
default value
> on forms.
>
> So, I have a date field and the default value is today, but when user open
> the form, today must be on that field.
>
>
> I''m setting this kind of default value on controller like that:
>
> def new
>   @payment = Payment.new
>   @payment.date = Date.current
> end
>
> But this become a mess since I have "dynamic" default values in
almost
> every model of my application.
>
>
> On Wednesday, October 17, 2012 4:41:55 PM UTC-3, Zamith wrote:
>
>> Isn''t this just the same as having a before_save callback
where you
>> define these default values?
>>
>> Also, what do you mean with "We can use db''s default
values but they are
>> evaluated during migrations"?
>> On Oct 17, 2012, at 8:28 PM, Alexander Kurakin wrote:
>>
>> ROR doesn''t realize functionality of setting default values
for models.
>> We can use db''s default values but they are evaluated during
migrations. We
>> can''t set default value i.e. Time.now. But there are completed
gems that
>> realize this. I.e. default_value_for (https://github.com/**
>>
FooBarWidget/default_value_for<https://github.com/FooBarWidget/default_value_for>
>> **). Why not to merge it in rails? Thanks.
>>
>> --
>> You received this message because you are subscribed to the Google
Groups
>> "Ruby on Rails: Core" group.
>> To view this discussion on the web visit https://groups.google.com/d/**
>>
msg/rubyonrails-core/-/**u1PNgYmkABUJ<https://groups.google.com/d/msg/rubyonrails-core/-/u1PNgYmkABUJ>
>> .
>> To post to this group, send email to rubyonra...@googlegroups.**com.
>> To unsubscribe from this group, send email to rubyonrails-co...@**
>> googlegroups.com.
>>
>> For more options, visit this group at http://groups.google.com/**
>>
group/rubyonrails-core?hl=en<http://groups.google.com/group/rubyonrails-core?hl=en>
>> .
>>
>>
>>  Cumprimentos,
>> Luís Ferreira
>>
>>
>>
>>  --
> You received this message because you are subscribed to the Google Groups
> "Ruby on Rails: Core" group.
> To view this discussion on the web visit
> https://groups.google.com/d/msg/rubyonrails-core/-/Q5Pjbb3Oow0J.
>
> To post to this group, send email to rubyonrails-core@googlegroups.com.
> To unsubscribe from this group, send email to
> rubyonrails-core+unsubscribe@googlegroups.com.