回答編集履歴
2
tobeのパラメータ更新
test
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@@ -80,11 +80,11 @@
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"gender"=>"1",
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-
"user_categories_attributes"=>{
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"user_categories_attributes"=>[{
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"category_ids"=>["", "1", "3", "4"]
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}
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}]
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}
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1
collection_check_boxesの書き方について追記
test
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@@ -3,3 +3,109 @@
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3
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[https://qiita.com/shingo-nakanishi/items/229ae20bc1ddf7192dfb](https://qiita.com/shingo-nakanishi/items/229ae20bc1ddf7192dfb)
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4
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を参考にして、fileds_forタグを使ってみたらどうでしょう？
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---
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追記
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AsIsのパラメーターでは以下のようになっているのですが、、、
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```
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{
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"user"=>{
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"name"=>"test22",
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"email"=>"test22@a.com",
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"password"=>"[FILTERED]",
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"password_confirmation"=>"[FILTERED]",
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"birthday(1i)"=>"1991",
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"birthday(2i)"=>"1",
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"birthday(3i)"=>"1",
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"gender"=>"1"
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},
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"user_categories_attributes"=>{
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"category_ids"=>["", "1", "3", "4"]
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}
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}
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```
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正しくは以下のようにならないと、accepts_nested_attributes_forが起動してくれません。
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（※ user_categories_attributesの位置に注目してくださ）
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```
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{
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"user"=>{
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"name"=>"test22",
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"email"=>"test22@a.com",
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"password"=>"[FILTERED]",
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"password_confirmation"=>"[FILTERED]",
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"birthday(1i)"=>"1991",
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"birthday(2i)"=>"1",
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"birthday(3i)"=>"1",
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"gender"=>"1",
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"user_categories_attributes"=>{
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"category_ids"=>["", "1", "3", "4"]
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}
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}
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}
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```
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95
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96
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ですので、おそらく対応箇所は以下です（実環境で試してないので、動かなかったらcollection_check_boxes helperのリファレンスを調べてみてください）
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98
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100
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101
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new.html.erb
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102
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103
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```html
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105
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<%= f.fields_for :category do |fc| %>
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<%= fc.collection_check_boxes :category_ids, Category.all, :id, :name %>
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<% end %>
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```
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