How-to conform to a max/min width/height
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10-10-2019 - |
문제
I am using Carrierwave (https://github.com/jnicklas/carrierwave). I need to make sure images conform to a maximum/minimum height and width? Otherwise an error should display.
Should this be handled in the uploader class or in the model (possibly through a custom validation method)?
해결책
You can validate image width/height on the client side, but that does not guarantee anything, because it's easy to manipulate/circumvent.
For user friendliness: check on the client side and give a warning before uploading. For data integrity, check on the server side after upload.
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