Knowledgebase

IFC cloud allows you to create aliases for mimetypes, so that you can display custom icons for files. For example, you might want a nice audio icon for audiofiles instead of the default file icon.

By default IFC cloud is distributed withnextcloud/resources/config/mimetypealiases.dist.json.Do not modify this file, as it will be replaced when Nextcloud is updated.Instead, create your own nextcloud/config/mimetypealiases.jsonfile with your custom aliases. Use the same syntax as innextcloud/resources/config/mimetypealiases.dist.json.

Once you have made changes to your mimetypealiases.json, use the occcommand to propagate the changes through the system. This example is forUbuntu Linux:

 

$ sudo -u www-data php occ maintenance:mimetype:update-js

 

See Using the occ command to learn more about occ.

Some common mimetypes that may be useful in creating aliases are:

image

Generic image

image/vector

Vector image

audio

Generic audio file

x-office/document

Word processed document

x-office/spreadsheet

Spreadsheet

x-office/presentation

Presentation

text

Generic text document

text/code

Source code

 

 

Mimetype mapping

           Ifc cloud allows administrators to specify the mapping of a file extension to amimetype. For example files ending in mp3 map to audio/mpeg. Whichthen in turn allows IFC cloud to show the audio icon.

By default Nextcloud comes with mimetypemapping.dist.json. This is asimple json array.Administrators should not update this file as it will get replaced on upgradesof Nextcloud. Instead the file mimetypemapping.json should be created andmodified, this file has precedence over the shipped file.

 

 

Icon retrieval

When an icon is retrieved for a mimetype, if the full mimetype cannot be found,the search will fallback to looking for the part before the slash. Given a filewith the mimetype ‘image/my-custom-image’, if no icon exists for the full mimetype, the icon for ‘image’ will be used instead. This allows specialisedmimetypes to fallback to generic icons when the relevant icons are unavailable