回答編集履歴
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要求場所を誤ったので回答風に修正
answer
CHANGED
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@@ -2,4 +2,20 @@
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2
2
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app>views>sessions>new.html.erb
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3
3
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ではなく、
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4
4
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app>views>registrations>new.html.erb
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5
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-
を
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5
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+
を確認してみてください。
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6
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+
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7
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usernameに変える場合は、以下の設定も忘れずに必要です。
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8
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```
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9
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# config/initializers/devise.rb
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10
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...
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11
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# ==> Configuration for any authentication mechanism
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# Configure which keys are used when authenticating a user. The default is
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13
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# just :email. You can configure it to use [:username, :subdomain], so for
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# authenticating a user, both parameters are required. Remember that those
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# parameters are used only when authenticating and not when retrieving from
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# session. If you need permissions, you should implement that in a before filter.
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# You can also supply a hash where the value is a boolean determining whether
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# or not authentication should be aborted when the value is not present.
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# config.authentication_keys = [ :email ]
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20
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config.authentication_keys = [ :username ]
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21
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```
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