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Railsでhtml template内のJSON-LDをjbuilderを使って楽に書く

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例えばslim, jbuilder環境だとして

$ tree app/views
app/views
├── users
│   └── show.html.slim
└── schemas
    └── person.json.jbuilder

というファイル構成の場合に

users/show.html.slim
script type="application/ld+json"
  /escapeされてしまうので、`==`でraw出力
  == render partial: 'schemas/person.json', locals: { name: 'damele0n' }
schemas/person.json.jbuilder
# json.@contextのようには記述できないので、`set!`を用いてSymbolで指定する
json.set! :@context, 'http://schema.org/'
json.set! :@type, 'Person'
json.name name

のように、partial templateとしてjbuilderで記述したtemplateを呼び込むとある程度楽に記述できる。


※script内でraw出力しているので、間違った指定やtemplateをrenderすると簡単にXSSを起こせるので注意すること

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