Question

我正在使用rails 4，使用Koala gem从Graph API检索用户图片。

我可以收到宝石来接收图片：

picture, picture_medium, picture_small = graph.batch do |batch_api|
  batch_api.get_picture(facebook_id, {'width' => PIC_SIZE_LARGE, 'height' => PIC_SIZE_LARGE}, 'return_ssl_resources' => '0')
  batch_api.get_picture(facebook_id, {'width' => PIC_SIZE_MED, 'height' => PIC_SIZE_MED}, 'return_ssl_resources' => '0')
  batch_api.get_picture(facebook_id, {'width' => PIC_SIZE_SMALL, 'height' => PIC_SIZE_SMALL}, 'return_ssl_resources' => '0')
end

但我想保存Koala正在使用的网址（我预先知道用户会调用网址，而不是我）。我假设gem调用： https://graph.facebook.com/facebook_id/picture

但我不希望它被硬编码。有没有办法从宝石中提取网址？感谢

Answer 1

更改此

picture, picture_medium, picture_small = graph.batch do |batch_api|
  batch_api.get_picture(facebook_id, {'width' => PIC_SIZE_LARGE, 'height' => PIC_SIZE_LARGE}, 'return_ssl_resources' => '0')
  batch_api.get_picture(facebook_id, {'width' => PIC_SIZE_MED, 'height' => PIC_SIZE_MED}, 'return_ssl_resources' => '0')
  batch_api.get_picture(facebook_id, {'width' => PIC_SIZE_SMALL, 'height' => PIC_SIZE_SMALL}, 'return_ssl_resources' => '0')
end

到这个

@graph = Koala::Facebook::API.new(oauth_access_token)

@graph.batch do |batch_api|
  @large_pic = batch_api.get_picture(facebook_id, {'width' => PIC_SIZE_LARGE, 'height' => PIC_SIZE_LARGE}, 'return_ssl_resources' => '0')
  @med_pic = batch_api.get_picture(facebook_id, {'width' => PIC_SIZE_MED, 'height' => PIC_SIZE_MED}, 'return_ssl_resources' => '0')
  @small_pic = batch_api.get_picture(facebook_id, {'width' => PIC_SIZE_SMALL, 'height' => PIC_SIZE_SMALL}, 'return_ssl_resources' => '0')
end

然后在您的视图中将照片保存到数据库

= image_tag @large_pic

rails koala gem - 获取API网址请求

1 个答案: