Carrierwave圖像調整大小不起作用

Question

我無法獲取圖像大小調整，我放在我的Rails應用程序正常工作。我添加了一個大小調整到picture_uploader.rb但它不能正常工作：

上傳/ picture_uploader.rb

class PictureUploader < CarrierWave::Uploader::Base 
    include CarrierWave::MiniMagick 
    process resize_to_limit: [400, 400] 

    if Rails.env.production? 
    storage :fog 
    else 
    storage :file 
    end 

    # Override the directory where uploaded files will be stored. 
    # This is a sensible default for uploaders that are meant to be mounted: 
    def store_dir 
    "uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}" 
    end 

    # Add a white list of extensions which are allowed to be uploaded. 
    def extension_white_list 
    %w(jpg jpeg gif png) 
    end 
end 

這裏是上傳：

home.html.erb

<span class="picture"> 
    <%= f.file_field :picture, accept: 'image/jpeg,image/gif,image/png' %> 
    </span> 

我需要圖片以相同尺寸上傳。

Answer 1

resize_to_limit只有在圖像大小大於指定值時纔會生效。在這裏閱讀文檔：link

你會使用resize_to_fil