How to: Store same file on same place, but different record

CarrierwaveSingleStore Plugin

This plugin helps carrierwave(https://github.com/jnicklas/carrierwave) saving images/docs with same content on one place, even if you have different names. It was developed for the models that can save the same(same content) files but in different records, saving disk space.

Imagine:
item = Item.find(3)
item.id
//3
item.name
//Hard Disk 100Gb
item.image
//1234567_hex.jpg
item.image_url 
//uploads/item/image/12/34/56/1234567_hex.jpg

otherItem = Item.find(5)
otherItem.id
//5
otherItem.name
//Hard Disk 120Gb
otherItem.update_attributes(:image=>'web_image_but_same_content.jpg')
otherItem.image
//1234567_hex.jpg
otherItem.image_url
//uploads/item/image/12/34/56/1234567_hex.jpg

these two records have different data, but with identical content files. CarrierWave::SingleStore holds one file for both records, saving space disk

Example

See examples folder. https://github.com/stvkoch/carrierwave_single_store/tree/master/examples

Dependencies

https://github.com/jnicklas/carrierwave

Install

rails plugin install [email protected]:stvkoch/carrierwave_single_store.git