hi thanks for answer sorry I quite new in RoR. If I do how u said, will I have to validate "manually" all the attributes for details ?
Le mercredi 30 janvier 2013 15:27:43 UTC+1, jim a écrit : > > > On Wed, Jan 30, 2013 at 6:48 PM, oto iashvili > <optimum...@laposte.net<javascript:> > > wrote: > >> I want to do >> @ad = Ad.attributes(params[:ad]) >> maybe Im wrong, but as I understood about polymorphic in rails, this >> would thow an error say that ad_real_estate_details does not exist >> >> as they explained here http://stackoverflow.** >> com/questions/3969025/accepts-**nested-attributes-for-with-** >> belongs-to-polymorphic<http://stackoverflow.com/questions/3969025/accepts-nested-attributes-for-with-belongs-to-polymorphic> >> > > As I've said, don't use accepts_nested_attributes_for. Create a getter > and setter method for each kind of details that you want. > If you don't want to do that, create an attr_accessor for the details, and > create the detail record in a callback. > > > >> >> >> Le mardi 29 janvier 2013 13:39:18 UTC+1, jim a écrit : >>> >>> >>> >>> >>> On Tue, Jan 29, 2013 at 7:41 PM, oto iashvili <optimum...@laposte.net>wrote: >>> >>>> Hi, >>>> >>>> thanks for answer. My pb with polymorphic is that I would have to >>>> create first in db a ligne for ad_real_estate_details and then create my >>>> ad, what is non sense for me, in terms of logic. >>>> and it might brings some pb as I read there http://stackoverflow.** >>>> com/questions/3969025/accepts-**nested-attributes-for-with-** >>>> belongs-to-polymorphic<http://stackoverflow.com/questions/3969025/accepts-nested-attributes-for-with-belongs-to-polymorphic> >>>> >>>> lets have another example which is almost the same >>>> >>>> image we have Student (age, classe, ...) and Teacher (subject_taught) >>>> classes that inherit from User classes. I would be non sense to create >>>> first a Teacher entity, and then to link it to User, no ? >>>> >>> >>> Why are you thinking of creating the details first? Why not create the >>> ad first, then add the details later? Sometimes, >>> accepts_nested_attributes_for is not always the answer for creating >>> association records. Try to look into virtual attributes >>> and callbacks. >>> >>> >>>> >>>> >>>> Le lundi 28 janvier 2013 01:10:30 UTC+1, jim a écrit : >>>>> >>>>> >>>>> >>>>> >>>>> On Mon, Jan 28, 2013 at 6:27 AM, oto iashvili >>>>> <optimum...@laposte.net>wrote: >>>>> >>>>>> hi, >>>>>> >>>>>> i' trying to re-create my project from php to rails. But now Im faced >>>>>> with a pb to witch I had solution with php, but I cant figure how to >>>>>> make >>>>>> it work with rails >>>>>> >>>>>> here my tables >>>>>> >>>>>> ads >>>>>> id >>>>>> category_id >>>>>> title >>>>>> text >>>>>> >>>>>> ad_real_estate_details >>>>>> id >>>>>> ad_id >>>>>> nb_room >>>>>> floor >>>>>> >>>>>> ad_car_details >>>>>> id >>>>>> ad_id >>>>>> color >>>>>> brand >>>>>> >>>>>> here what I succeed to do >>>>>> >>>>>> >>>>>> class Ad < ActiveRecord::Base >>>>>> attr_accessible :category_id :title, :text, :ad_real_estate_details >>>>>> has_one :ad_real_estate_details >>>>>> accepts_nested_attributes_for :ad_real_estate_details, >>>>>> allow_destroy: true >>>>>> end >>>>>> >>>>>> class AdRealEstateDetail < ActiveRecord::Base >>>>>> belongs_to :ad >>>>>> validates :ad_id, presence: true >>>>>> end >>>>>> >>>>>> but this only work for other category than real_estate >>>>>> >>>>>> so I was thinking of polymorphism, but polymorphism mean I should add >>>>>> a reference in my "ad" table to the detail tables, and remove annonce_id >>>>>> from detail tables , what I thing is non-sense as some ads can have no >>>>>> details, but details are non-sense without an ad. >>>>>> >>>>> >>>>> i think you have it right when you mentioned using polymorphic >>>>> associations. it is fine to leave the polymorphic association >>>>> nil if the ad has no details if that's what you're worried about. >>>>> >>>>> >>>>>> >>>>>> I was also thinking of a class AdDetails, and AdRealEstateDetail >>>>>> would inherite from it, but this is not possible with rails as all >>>>>> subclasses will share the same table >>>>>> >>>>>> does anyone have a solution for this kind of problem ? >>>>>> >>>>>> thanks >>>>>> >>>>>> -- >>>>>> 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 rubyonra...@googlegroups.**com. >>>>>> To unsubscribe from this group, send email to rubyonrails-ta...@** >>>>>> googlegroups**.com. >>>>>> >>>>>> To view this discussion on the web visit https://groups.google.com/d/ >>>>>> **ms**g/rubyonrails-talk/-/**GLpFbbHm0**ogJ<https://groups.google.com/d/msg/rubyonrails-talk/-/GLpFbbHm0ogJ> >>>>>> . >>>>>> For more options, visit >>>>>> https://groups.google.com/**grou**ps/opt_out<https://groups.google.com/groups/opt_out> >>>>>> . >>>>>> >>>>>> >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> ------------------------------****------------------------------****- >>>>> visit my blog at http://jimlabs.heroku.com >>>>> >>>> -- >>>> 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-ta...@**googlegroups.com. >>>> >>>> To post to this group, send email to rubyonra...@googlegroups.**com. >>>> To view this discussion on the web visit https://groups.google.com/d/** >>>> msg/rubyonrails-talk/-/**zT4pri8N4GUJ<https://groups.google.com/d/msg/rubyonrails-talk/-/zT4pri8N4GUJ> >>>> . >>>> >>>> For more options, visit >>>> https://groups.google.com/**groups/opt_out<https://groups.google.com/groups/opt_out> >>>> . >>>> >>>> >>>> >>> >>> >>> >>> -- >>> ------------------------------**------------------------------**- >>> visit my blog at http://jimlabs.heroku.com >>> >> -- >> 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-ta...@googlegroups.com <javascript:>. >> To post to this group, send email to >> rubyonra...@googlegroups.com<javascript:> >> . >> To view this discussion on the web visit >> https://groups.google.com/d/msg/rubyonrails-talk/-/DT2QhvrfLpUJ. >> >> For more options, visit https://groups.google.com/groups/opt_out. >> >> >> > > > > -- > ------------------------------------------------------------- > visit my blog at http://jimlabs.heroku.com > -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. 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