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带有验证的实验室nyc-web-060319
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2021-02-13
15:06:02
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带有验证实验室的CRUD 在本实验中,您的目标是为一个模型Song创建一个完整的CRUD接口。 歌曲 歌曲具有以下属性和限制: title , string 不能空白 不能由同一位艺术家在同一年重复 released ,一个boolean描述歌曲是否曾经正式发布必须为true或false release_year ,一个integer 如果released为false则为可选 如果released为true则不能为空 必须小于或等于当年 artist_name ,一个string 不能空白 genre ,一个string 要求 使用resource生成器,而不是scaffold生成器 使用Song验证定义模型。 定义歌曲的所有RESTful路由。 在HTML表格中呈现歌曲列表。 使用路由助手建立相互连接的视图。 使用form_for构建具有预填充和错误列表功能的表单。 (
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