Ruby on rails 如何检查扩展类型,然后将其保存在正确的位置
我有带图片和视频的模型 如何检查Ruby on rails 如何检查扩展类型,然后将其保存在正确的位置,ruby-on-rails,mongoid,feedjira,Ruby On Rails,Mongoid,Feedjira,我有带图片和视频的模型 如何检查存储模块类型,然后保存到正确的位置 feed_entry.rb class FeedEntry include Mongoid::Document field :enclosure_url, type: String field :enclosure_type, type: String field :video, type: String mount_uploader :picture, PictureUploader end 例如: f
存储模块类型
,然后保存到正确的位置
feed_entry.rb
class FeedEntry
include Mongoid::Document
field :enclosure_url, type: String
field :enclosure_type, type: String
field :video, type: String
mount_uploader :picture, PictureUploader
end
例如:
feed = Feedjira::Feed.fetch_and_parse 'http://example.com/feed.xml'
feed.entries.first.enclosure_url # => "http://example.com/d260eb5c"
feed.entries.first.enclosure_type # => "image/jpeg"
feed.entries.last.enclosure_url # => 'https://youtu.be/AnXR-MKhg64'
feed.entries.last.enclosure_type # => "video/x-ms-asf"
这是我在控制器中所做的事情,但让我向你们展示我所做的
class FilesController < ApplicationController
def create
...
feed_entry.save
if params[:file].content_type == 'image/jpeg'
feed_entry.save_image
# save file at images location
elsif params[:file].content_type == 'video/x-ms-asf'
feed_entry.save_video
# save file at video location
else
# Dont know how to process file
end
...
end
end
class filecontroller
虽然此代码可以回答问题,但提供有关此代码回答问题的原因和/或方式的其他上下文可以提高其长期价值。
before_save :save_uri
def media_type
if self.enclosure_type =~ /image\//
self.remote_picture_url = self.enclosure_url
elsif self.enclosure_type =~ /video\//
self.video = self.enclosure_url
else
self.video = self.enclosure_url
end
end