Question

这些是传递给我的HTTP POST请求的参数，如下所示：

Parameters: {
"vision"=>{
  "description"=>"dsfsfdsfdsfsd",
  "image"=>"file:///Users/ozgecokyasar/Library/Developer/
     CoreSimulator/Devices/EDD6C498-DACD-433E-B96D-3A30BAE7BA6D/data/
     Containers/Data/Application/
     6F633096-E665-46BB-952F-2775DD85A4A6/Library/Caches/
     ExponentExperienceData/%2540anonymous%252Fmanifestation-react- 
     3ac1cbe2-549f-
     49e7-8506-ef29638d1643/ImagePicker/0E426602-8110-4A9C-8B9A- 
     96D0BF1B2ECE.jpg"
  }
}

但是，它照原样保存（图像为零）：

SQL (2.1ms)  INSERT INTO "visions" ("image", "description", "created_at",
 "updated_at", "user_id") VALUES ($1, $2, $3, $4, $5) RETURNING "id" 
 [["image", nil], ["description", "dsfsfdsfdsfsd"], ["created_at", "2019-
01-12 01:14:34.341356"],["updated_at", "2019-01-12 01:14:34.341356"], 
["user_id", 3]]

为什么图片列为零？

visions_controller.rb：

  def create
    @vision = current_user&.visions.build(vision_params)
    @vision.remote_image_url = params[:image]

    @vision.save
    render :create, status: :created
  end

视觉模型：

class Vision < ApplicationRecord
    belongs_to :user
    mount_uploader :image, ImageUploader

end

但是，如果将visions_controller中的create动作更改为：

，我就能成功地将远程URL保存到我的图像列中。

  def create
    @vision = current_user&.visions.build(vision_params)
    @vision.remote_image_url = 'ANY REMOTE IMAGE URL'

    @vision.save
    render :create, status: :created
  end

为什么当我添加params [：image]时，传递的图像参数被保存为nil？

Rails API-本地文件未上传到s3 / Heroku

0 个答案: