This checklist should help you to check edge cases that are not part of the default Carrierwave configuration.

Check Default Configuration and Suggested Changes
Use secret URLs.
Check if you need expiring public URLs.
Check if you need an optimized cache
Use a nested directory structure
Make your uploaders remove empty directories
Deliver sensitive attachments to authorized users only

When storing images:

Check if you need to resize your images:
- ImageMagick.
- libvips.
Check if your allow list for file extensions Show archive.org snapshot and content types Show archive.org snapshot is correct.
Check if you process images efficiently.
Check if you need to partially remove exif data like GPS:
- ImageMagick
- libvips
Handle color profiles correctly
- ImageMagick
- libvips
Handle rotated images.
Check if you want to accept GIF images and/or animated GIF images.

Emanuel

makandra.de

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Last edit

2023-08-28

Emanuel

Keywords

list, issue, topic, standard, mind, remember

License

Source code in this card is licensed under the MIT License.

Delivering Carrierwave attachments to authorized users only

Preparation

To attach files to your records, you will need a new database column representing the filename of the file. To do this, add a new migration (rails g migration <name>) with the following content:

class AddAttachmentToNotes...

Async control flow in JavaScript: Promises, Microtasks, async/await

Slides for Henning's talk on Sep 21st 2017.

Understanding sync vs. async control flow

Talking to synchronous (or "blocking") API

print('script start')
html = get('/foo')
print(html)
print('s...

Posted by Emanuel to makandra dev (2020-02-10 09:03)

Checklist: Using Carrierwave in a Rails project

Related cards:

Introduction

Summary

Preparation

Understanding sync vs. async control flow

Talking to synchronous (or "blocking") API