タグactiverecord - これはページ9です - GeneraCodice

Rails How to store signed decimals and how to parse a string for numbers in ruby

https://www.generacodice.com/jp/articolo/13557571/rails-how-to-store-signed-decimals-and-how-to-parse-a-string-for-numbers-in-ruby
  database  -  ruby  -  activerecord  -  ruby-on-rails-4
StackOverflow StackOverflow

User ID is NULL when saving record for logged in user

https://www.generacodice.com/jp/articolo/13554583/user-id-is-null-when-saving-record-for-logged-in-user
  mysql  -  ruby-on-rails  -  session  -  activerecord
StackOverflow StackOverflow

ActiveRecord::Base has_many fetch all for a given parent

https://www.generacodice.com/jp/articolo/13549945/activerecord-base-has-many-fetch-all-for-a-given-parent
  ruby  -  activerecord  -  rack  -  ruby-grape
StackOverflow StackOverflow

Rails group/having/count query

https://www.generacodice.com/jp/articolo/13542094/rails-group-having-count-query
  sql  -  ruby-on-rails  -  activerecord
StackOverflow StackOverflow

Rails 4 Update Nested Attributes

https://www.generacodice.com/jp/articolo/13541194/rails-4-update-nested-attributes
  ruby  -  ruby-on-rails  -  activerecord
StackOverflow StackOverflow

Update old record instead of creating a new one?

https://www.generacodice.com/jp/articolo/13536496/update-old-record-instead-of-creating-a-new-one
  ruby  -  ruby-on-rails  -  activerecord
StackOverflow StackOverflow

codeigniter active record left join

https://www.generacodice.com/jp/articolo/13536451/codeigniter-active-record-left-join
  PHP  -  left-join  -  activerecord  -  codeigniter
StackOverflow StackOverflow

Grape API + Active Record Wrapping Transaction

https://www.generacodice.com/jp/articolo/13534897/grape-api-active-record-wrapping-transaction
  ruby  -  ruby-on-rails  -  activerecord  -  transactions  -  grape-api
StackOverflow StackOverflow

I have a mistakes: undefined method `name' for nil:NilClass and undefined method `id' for nil:NilClass

https://www.generacodice.com/jp/articolo/13530961/i-have-a-mistakes-undefined-method-name-for-nil-nilclass-and-undefined-method-id-for-nil-nilclass
  ruby  -  ruby-on-rails  -  activerecord  -  ruby-on-rails-4
StackOverflow StackOverflow

user model error - Rails

https://www.generacodice.com/jp/articolo/13529275/user-model-error-rails
  ruby-on-rails  -  activerecord  -  devise  -  pundit
StackOverflow StackOverflow
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