Re: [Rails] do i need associations to use fields_for

[Ariel Juodziukynas]

accepts_nested_attributes_for explicitly checks for associations to exist
https://github.com/rails/rails/blob/f33d52c95217212cbacc8d5e44b5a8e3cdc6f5b3/activerecord/lib/active_record/nested_attributes.rb#L340

fields_for does not require accepts_nested_attributes_for to be defined,
but it won't behave the same without that, you can inspect the generated
html on both cases

El lun., 17 feb. 2020 a las 6:19, Nicholas Schwaderer (<
nicholas.schwade...@gmail.com>) escribió:

> Hello again Fugee,
>
> Fields in forms in Rails do not necessarily have to correspond with model
> attributes.
>
> Generally, you might find the Rails edge guide on forms very helpful- as
> well as the `form_with` API docs which are a bit more specific for some of
> these questions.
>
> https://guides.rubyonrails.org/form_helpers.html
> https://apidock.com/rails/ActionView/Helpers/FormHelper/form_with
>
> Nick Schwaderer
>
> On Mon, 17 Feb 2020 at 07:45, fugee ohu  wrote:
>
>>
>>
>> On Monday, February 17, 2020 at 12:38:03 AM UTC-5, Walter Lee Davis wrote:
>>>
>>> You may use fields_for for any object that you have declared
>>> "accepts_nested_attributes_for" in your form's parent model. It obviously
>>> makes the most sense to do this with a related object.
>>>
>>> Walter
>>>
>>> > On Feb 16, 2020, at 10:41 PM, fugee ohu  wrote:
>>> >
>>> > Can I use fields_for for any models or do they have to be associated?
>>> >
>>> > --
>>> > You received this message because you are subscribed to the Google
>>> Groups "Ruby on Rails: Talk" group.
>>> > To unsubscribe from this group and stop receiving emails from it, send
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>>> > To view this discussion on the web visit
>>> https://groups.google.com/d/msgid/rubyonrails-talk/09881329-3137-4c90-94a1-6495bccc90bd%40googlegroups.com.
>>>
>>>
>>
>> In my app users have many artists, artists have many tourdates, artists
>> have many venues, users have many venues through artists, tour_dates when
>> added have to provide a venue so they can select from clubs or festivals
>> that are included in the app, and they can also create a user defined
>> venue, or select from previous user defined venues I had this working
>> before I started concerning myself with associations by prepending all the
>> venue fields with venue so state and city become venue_state and venue_city
>> and I add an attribute_accessor to the tour_dates model for each venue
>> field I feel like that still the way to do it, as long as the user defined
>> venues belong to the artist and user so if the user ever deletes the artist
>> the venue will be deleted also
>>
>> --
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>> "Ruby on Rails: Talk" group.
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>> 
>> .
>>
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> 
> .
>

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Re: [Rails] do i need associations to use fields_for

[Nicholas Schwaderer]

Hello again Fugee,

Fields in forms in Rails do not necessarily have to correspond with model
attributes.

Generally, you might find the Rails edge guide on forms very helpful- as
well as the `form_with` API docs which are a bit more specific for some of
these questions.

https://guides.rubyonrails.org/form_helpers.html
https://apidock.com/rails/ActionView/Helpers/FormHelper/form_with

Nick Schwaderer

On Mon, 17 Feb 2020 at 07:45, fugee ohu  wrote:

>
>
> On Monday, February 17, 2020 at 12:38:03 AM UTC-5, Walter Lee Davis wrote:
>>
>> You may use fields_for for any object that you have declared
>> "accepts_nested_attributes_for" in your form's parent model. It obviously
>> makes the most sense to do this with a related object.
>>
>> Walter
>>
>> > On Feb 16, 2020, at 10:41 PM, fugee ohu  wrote:
>> >
>> > Can I use fields_for for any models or do they have to be associated?
>> >
>> > --
>> > You received this message because you are subscribed to the Google
>> Groups "Ruby on Rails: Talk" group.
>> > To unsubscribe from this group and stop receiving emails from it, send
>> an email to rubyonra...@googlegroups.com.
>> > To view this discussion on the web visit
>> https://groups.google.com/d/msgid/rubyonrails-talk/09881329-3137-4c90-94a1-6495bccc90bd%40googlegroups.com.
>>
>>
>
> In my app users have many artists, artists have many tourdates, artists
> have many venues, users have many venues through artists, tour_dates when
> added have to provide a venue so they can select from clubs or festivals
> that are included in the app, and they can also create a user defined
> venue, or select from previous user defined venues I had this working
> before I started concerning myself with associations by prepending all the
> venue fields with venue so state and city become venue_state and venue_city
> and I add an attribute_accessor to the tour_dates model for each venue
> field I feel like that still the way to do it, as long as the user defined
> venues belong to the artist and user so if the user ever deletes the artist
> the venue will be deleted also
>
> --
> You received this message because you are subscribed to the Google Groups
> "Ruby on Rails: Talk" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to rubyonrails-talk+unsubscr...@googlegroups.com.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/rubyonrails-talk/f2ba1d66-8420-41e9-b228-2456080f0ffb%40googlegroups.com
> 
> .
>

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Re: [Rails] do i need associations to use fields_for

[fugee ohu]

On Monday, February 17, 2020 at 12:38:03 AM UTC-5, Walter Lee Davis wrote:
>
> You may use fields_for for any object that you have declared 
> "accepts_nested_attributes_for" in your form's parent model. It obviously 
> makes the most sense to do this with a related object. 
>
> Walter 
>
> > On Feb 16, 2020, at 10:41 PM, fugee ohu > 
> wrote: 
> > 
> > Can I use fields_for for any models or do they have to be associated? 
> > 
> > -- 
> > You received this message because you are subscribed to the Google 
> Groups "Ruby on Rails: Talk" group. 
> > To unsubscribe from this group and stop receiving emails from it, send 
> an email to rubyonra...@googlegroups.com . 
> > To view this discussion on the web visit 
> https://groups.google.com/d/msgid/rubyonrails-talk/09881329-3137-4c90-94a1-6495bccc90bd%40googlegroups.com.
>  
>
>

In my app users have many artists, artists have many tourdates, artists 
have many venues, users have many venues through artists, tour_dates when 
added have to provide a venue so they can select from clubs or festivals 
that are included in the app, and they can also create a user defined 
venue, or select from previous user defined venues I had this working 
before I started concerning myself with associations by prepending all the 
venue fields with venue so state and city become venue_state and venue_city 
and I add an attribute_accessor to the tour_dates model for each venue 
field I feel like that still the way to do it, as long as the user defined 
venues belong to the artist and user so if the user ever deletes the artist 
the venue will be deleted also

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Re: [Rails] do i need associations to use fields_for

[fugee ohu]

On Monday, February 17, 2020 at 12:38:03 AM UTC-5, Walter Lee Davis wrote:
>
> You may use fields_for for any object that you have declared 
> "accepts_nested_attributes_for" in your form's parent model. It obviously 
> makes the most sense to do this with a related object. 
>
> Walter 
>
> > On Feb 16, 2020, at 10:41 PM, fugee ohu > 
> wrote:
> > 
> > Can I use fields_for for any models or do they have to be associated? 
> > 
> > -- 
> > You received this message because you are subscribed to the Google 
> Groups "Ruby on Rails: Talk" group. 
> > To unsubscribe from this group and stop receiving emails from it, send 
> an email to rubyonra...@googlegroups.com . 
> > To view this discussion on the web visit 
> https://groups.google.com/d/msgid/rubyonrails-talk/09881329-3137-4c90-94a1-6495bccc90bd%40googlegroups.com.
>  
>
>
>
If you use accepts_nested_attributes_for in a model without an association 
rails will raise an error In my models users have many artists, artists 
have many tour_dates and tour_dates have many user_venues I need to add 
fields for user_venues to the tour_dates form Pretty confused what to do

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Re: [Rails] do i need associations to use fields_for

[Walter Lee Davis]

You may use fields_for for any object that you have declared 
"accepts_nested_attributes_for" in your form's parent model. It obviously makes 
the most sense to do this with a related object.

Walter

> On Feb 16, 2020, at 10:41 PM, fugee ohu  wrote:
> 
> Can I use fields_for for any models or do they have to be associated?
> 
> -- 
> You received this message because you are subscribed to the Google Groups 
> "Ruby on Rails: Talk" group.
> To unsubscribe from this group and stop receiving emails from it, send an 
> email to rubyonrails-talk+unsubscr...@googlegroups.com.
> To view this discussion on the web visit 
> https://groups.google.com/d/msgid/rubyonrails-talk/09881329-3137-4c90-94a1-6495bccc90bd%40googlegroups.com.

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