你能用 Paperclip 识别图像的当前尺寸吗? [英] Can you identify the current dimensions of an image with Paperclip?

问题描述

我刚刚更新了图像缩略图的尺寸，并且一直致力于更新 28,000 个照片对象.不幸的是，这种过程需要很长时间才能完成.在这个过程中，有的被拒绝，有的被取消.

I just updated the dimensions of an image thumbnail, and have been working on updating 28,000 photo objects. Unfortunately, this kind of process takes many processes over a long time to accomplish. In this process, some get rejected, and some processes get canceled.

有没有办法识别图像缩略图是否具有当前尺寸?

Is there a way to identify whether an image thumbnail has the current dimensions or not?

推荐答案

我不确定我是否理解您的问题，但您可以使用 Paperclip 获取任何文件的宽度和高度.

I'm unsure I understood your question but you can get the width and height of any file using Paperclip.

geo = Paperclip::Geometry.from_file(user.picture.path(:thumbnail))
geo.width
geo.height

您可以自动获取任何样式的尺寸:

You could get the dimensions of any style automatically:

user.picture.styles[:thumbnail].geometry # => "125x125!"

你甚至有一些有用的方法，比如:

You even have some useful methods like:

geo.horizontal?
geo.vertical?

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