如何將base64編碼文件提交到回形針？

Question

我有一個反應本機應用程序從設備讀取圖像文件作爲base64字符串，並通過axios將其提交到rails應用程序。以下是正在提交的數據的一部分：

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 

問題是，我無法直接將此添加到回形針。我應該怎麼做才能使它工作？在模型

Answer 1

方法附加文件（Event在這個例子中）：在控制器

def add_picture(picture_64, picture_name) 
    picture_data     = Paperclip.io_adapters.for(picture_64) 
    picture_data.original_filename = picture_name 
    self.picture = picture_data 
    end 

方法：

def create_picture 
    if params[:picture] 
     picture_params = params[:picture] 
     @event.add_picture(picture_params[:file_data], picture_params[:file_name]) 
    end 
    end 

一般來說，你只需要Paperclip.io_adapters.for(picture_64)，會產生你需要的對象，它可以接受通過Paperclip。