On Thursday, October 31, 2019 at 9:33:22 PM UTC-4, Ariel Juodziukynas wrote: > > @item.item_item_properties returns a collection of objects, you are > calling a method on something array-like, it makes no sense. > > If you want to get all the item_property_ids you can > do @item.item_item_properties.pluck(:item_property_id) for example. I'm not > sure what you want to achieve. > > El jue., 31 oct. 2019 a las 22:29, fugee ohu (<fuge...@gmail.com > <javascript:>>) escribió: > >> >> >> On Thursday, October 31, 2019 at 2:15:48 PM UTC-4, Ariel Juodziukynas >> wrote: >>> >>> Use `.size` instead of `.count`. "count" does a database query and since >>> you only built the element the COUNT db query will return 0. "size" knows >>> what to do if the association is already initialized so it will return "1" >>> in your case (and if it's not already loaded it will run a COUNT db query). >>> >>> El jue., 31 oct. 2019 a las 8:42, fugee ohu (<fuge...@gmail.com>) >>> escribió: >>> >>>> > @item=Item.new >>>> > @item.item_item_properties.build >>>> > @item.item_item_properties.count >>>> => 0 >>>> >>>> Why doesn't my @item object have any item_item_properties after build >>>> method >>>> >>>> -- >>>> 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/161b90ed-b6b1-4d4d-9f67-fb70f0463621%40googlegroups.com >>>> >>>> <https://groups.google.com/d/msgid/rubyonrails-talk/161b90ed-b6b1-4d4d-9f67-fb70f0463621%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>> >> How do I reference individual columns? >> 2.3.3 :006 > @item.item_item_properties.item_property_id >> NoMethodError: undefined method `item_property_id' for >> #<ItemItemProperty::ActiveRecord_Associations_CollectionProxy:0x0055d4167fd628> >> >> -- >> 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 <javascript:>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/rubyonrails-talk/a80b3961-82df-4943-9e5a-adb764d516b7%40googlegroups.com >> >> <https://groups.google.com/d/msgid/rubyonrails-talk/a80b3961-82df-4943-9e5a-adb764d516b7%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > 2.3.3 :006 > @item.item_item_properties.pluck(:item_property_id) => []
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