observe_media_upload_props/3
Notification that a medium file has been uploaded. This is the moment to change properties, modify the file etc. The folded accumulator is the map with updated medium properties.
Type:
Return:
modified medium properties map
#media_upload_props{}
properties:
id:
m_rsc:resource_id()|insert_rsc
mime:
binary
archive_file:
file:filename_all()|undefined
options:
list