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Sortable collections ​
Sortable collections are implemented by the modules
f_collectionf_collection_item
The permissions for module f_collection_item derived from module f_collection and therefore no configuration in admin snap-in for this module.
The permissions for read and delete are handled in an CollectionItemAfterCreateSessionEventListener.
The permissions for edit and create are handled in before_set_single and before_set_multiple hooks, because not possible in CollectionItemAfterCreateSessionEventListener.
Permission definition:
readset to
readpermission from modulesf_collectionandfiledeleteset to
editpermission from modulef_collectioncreateOnly possible when
collectionset to a collection witheditpermission andfileset to a file withreadpermission.editOnly when recent collection is
editableand when properties fromcreatepermission set then the same conditions have to take effectassignnot supported because not make sense

