我需要获取一个名为@users的数据数组，并将其转换为具有正确格式的json响应。
@users数组有一堆属性。我只需要id和screen_name，但我需要格式化如下：
[
{"id":"856","screen_name":"joerogan"},
{"id":"1035","screen_name":"redban"},
{"id":"1245","screen_name":"madflavor"}
...
]
def user_json_list
...
results = @users # ?
respond_to do |format|
format.html
format.json { render :json => results }
end
end
@users数组如下所示：
[{
"profile_sidebar_fill_color":"C0DFEC",
"protected":false,
"is_translator":false,
"default_profile":false,
"lang":"en",
"profile_background_tile":false,
"profile_image_url":"http://a3.twimg.com/profile_images/1443034111/new_avatar_normal.jpg",
"name":"Joe Rogan",
"follow_request_sent":false,
"verified":true,
"utc_offset":-25200,
"profile_link_color":"0084B4",
"followers_count":416343,
"screen_name":"joerogan",
"profile_sidebar_border_color":"a8c7f7",
"location":"","contributors_enabled":false,
"time_zone":"Mountain Time (US & Canada)",
"status":
{
"favorited":false,
"in_reply_to_status_id_str":null,
"place":null,
"in_reply_to_screen_name":null,
"in_reply_to_user_id_str":null,
"contributors":null,"geo":null,
"retweeted":false,
"truncated":false,
"coordinates":null,
"text":"The Joe Rogan Daily is out! http://bit.ly/bgRzbI \u25b8 Top stories today via @bryanbrinkman @madmanwoo",
"in_reply_to_user_id":null,
"retweet_count":0,
"in_reply_to_status_id":null,
"id_str":"99032523769782272",
"source":"<a href=\"http://paper.li\" rel=\"nofollow\">Paper.li</a>",
"created_at":"Thu Aug 04 08:22:48 +0000 2011",
"possibly_sensitive":false,
"id":99032523769782272
},
"show_all_inline_media":false,
"listed_count":9675,
"following":true,
"geo_enabled":false,
"profile_use_background_image":true,
"profile_background_image_url_https":"https://si0.twimg.com/profile_background_images/293713769/back.jpg",
"url":"http://www.joerogan.net",
"description":"Stand up comic/mixed martial arts fanatic/psychedelic adventurer/occasional tv whore\r\n\r\nSayNow number: 818-237-4245",
"profile_background_color":"022330",
"profile_image_url_https":"https://si0.twimg.com/profile_images/1443034111/new_avatar_normal.jpg",
"id_str":"18208354",
"profile_background_image_url":"http://a0.twimg.com/profile_background_images/293713769/back.jpg",
"created_at":"Thu Dec 18 04:01:47 +0000 2008",
"statuses_count":7464,
"notifications":false,
"friends_count":982,"id":18208354,
"default_profile_image":false,
"favourites_count":88,"profile_text_color":"333333"
},
{
"listed_count":517,
"profile_background_image_url_https":"https://si0.twimg.com/profile_background_images/188153775/redbak.jpg",
"profile_sidebar_fill_color":"C0DFEC",
"protected":false,
"lang":"en",
"profile_background_tile":true,
"profile_image_url_https":"https://si0.twimg.com/profile_images/1475168425/189391_2151954270770_1003770965_32544227_8147843_n_normal.jpg",
"profile_image_url":"http://a3.twimg.com/profile_images/1475168425/189391_2151954270770_1003770965_32544227_8147843_n_normal.jpg",
"name":"redban",
"default_profile":false,
"verified":false,
"utc_offset":-28800,
"friends_count":1074,
"profile_link_color":"0084B4",
"followers_count":26651,
"screen_name":"redban",
"default_profile_image":false,
"profile_sidebar_border_color":"a8c7f7",
"location":"Burbank, CA",
"time_zone":"Pacific Time (US & Canada)",
"status":
{
"favorited":false,
"in_reply_to_status_id_str":"98986315491713024",
"place":null,"in_reply_to_screen_name":"WarriorPoetUS",
"in_reply_to_user_id_str":"105196298",
"contributors":null,
"geo":null,
"retweeted":false,
"truncated":false,
"coordinates":null,
"text":"@WarriorPoetUS I feel blessed just knowing you brotha!",
"in_reply_to_user_id":105196298,
"retweet_count":0,
"in_reply_to_status_id":98986315491713024,
"id_str":"99002282691137536",
"source":"<a href=\"http://twitter.com/#!/download/iphone\" rel=\"nofollow\">Twitter for iPhone</a>",
"created_at":"Thu Aug 04 06:22:38 +0000 2011",
"id":99002282691137536
},
"is_translator":false,
"following":false,
"profile_use_background_image":true,
"url":"http://www.redban.com",
"description":"If you know me, you're paying attention. For all the podcasts I produce check out: http://www.deathsquad.tv and subscribe to DEATHSQUAD on iTunes.",
"show_all_inline_media":true,
"follow_request_sent":false,
"geo_enabled":false,
"profile_background_color":"022330",
"id_str":"14829533",
"profile_background_image_url":"http://a0.twimg.com/profile_background_images/188153775/redbak.jpg",
"created_at":"Mon May 19 06:48:27 +0000 2008",
"notifications":false,
"id":14829533,
"contributors_enabled":false,
"statuses_count":5753,
"favourites_count":71,
"profile_text_color":"333333"
},
{
"show_all_inline_media":false,
"geo_enabled":false,
"profile_sidebar_fill_color":"DDEEF6",
"protected":false,
"profile_image_url_https":"https://si0.twimg.com/profile_images/295809307/doc_normal.jpg",
"lang":"en",
"profile_background_tile":false,
"profile_image_url":"http://a1.twimg.com/profile_images/295809307/doc_normal.jpg",
"name":"Joey CoCo Diaz",
"verified":false,
"friends_count":99,
"default_profile_image":false,
"statuses_count":3440,
"utc_offset":-28800,
"profile_link_color":"0084B4",
"followers_count":26489,
"screen_name":"madflavor",
"profile_sidebar_border_color":"C0DEED",
"location":"Los Angeles CALIFORNIA",
"is_translator":false,
"time_zone":"Pacific Time (US & Canada)",
"status":
{
"favorited":false,
"in_reply_to_status_id_str":"99014475436408833",
"place":null,
"in_reply_to_screen_name":"msunner1",
"in_reply_to_user_id_str":"308440624",
"contributors":null,
"geo":null,
"retweeted":false,
"truncated":false,
"coordinates":null,
"text":"@msunner1 Real soon! Much love!",
"in_reply_to_user_id":308440624,
"retweet_count":0,
"in_reply_to_status_id":99014475436408833,
"id_str":"99029735958511616",
"source":"web",
"created_at":"Thu Aug 04 08:11:43 +0000 2011",
"id":99029735958511616
},
"follow_request_sent":false,
"following":false,
"profile_use_background_image":true,
"url":"http://blogs.myspace.com/39708886",
"description":"LIFECOACH/COMEDIAN/ CRIMINAL/ WEIGHTWATCHER",
"profile_background_color":"C0DEED",
"id_str":"29226377",
"profile_background_image_url":"http://a0.twimg.com/images/themes/theme1/bg.png",
"created_at":"Mon Apr 06 15:49:20 +0000 2009",
"contributors_enabled":false,
"notifications":false,
"id":29226377,
"default_profile":true,
"listed_count":547,
"profile_background_image_url_https":"https://si0.twimg.com/images/themes/theme1/bg.png",
"favourites_count":3,
"profile_text_color":"333333"
}]
答案 0 :(得分：1)
respond_to do |format|
format.html
format.json { render :json => @users.map{|u| {:id => u.id, :screen_name => u.screen_name}} }
end