GNIP-66: curated_thumbs contrib application

[capooti]

Hello GeoNode developers

we have the following requirement: in many cases GeoNode users would like to be able to upload a static image that can be used in place of the automatically GeoNode generated thumbnail.

We would like to develop a contrib application which, when added in INSTALLED_APPS, will act in the following way:

• in the edit layer/map form, there will be a new button, named "Upload" in the Thumbnail section
• clicking on the button, the user will get to an "Upload thumbnail" page, identical for layers and maps
• the user will be able to upload a thumbnail to be associated with the layer/map. If an image is uploaded, then it will be used as the thumbnail for that layer/map. Otherwise the usual GeoNode behaviour will keep going

How GeoNode would be impacted when the contrib application is used:

• there won't be any schema change in existing tables
• there will be a new model (table) which will keep a 1-1 relation with base_resourcebase
• thumbnail_url will be dehydrated in geonode/api/resourcebase_api.py (only when the extension is used) in order to return the static image url in place of the thumbnail
• the edit layer/map form will have a new "upload thumbnail" button
• a new page with the upload thumbnail feature will be available

Please provide your feedback (maybe with changes/improvements), and I would soon send a PR with this new contrib application.

[t-book]

Thanks, @capooti I would very welcome this. +1.

It would be great to have some settings option which filesize and types are allowed (maybe even svg :)) By the way have you seen there is an upload option in mapstore for thumbs as well nevertheless I like the idea of a viewer independent contrib app.

[afabiani]

@capooti +1 nice feature.

There's already a similar feature available for Documents by default since a long time

[t-book]

@capooti As the PR has already been merged. Can we close this issue?

[capooti]

yes let's close this @t-book