3.4. Metadata#

Each entity type in CubicWeb has at least the following meta-data attributes and relations:

eid

entity’s identifier which is unique in an instance. We usually call this identifier eid for historical reason.

creation_date

Date and time of the creation of the entity.

modification_date

Date and time of the latest modification of an entity.

cwuri

Reference URL of the entity, which is not expected to change.

created_by

Relation to the users who has created the entity

owned_by

Relation to users whom the entity belongs; usually the creator but not necessary, and it could have multiple owners notably for permission control

is

Relation to the entity type of which type the entity is.

is_instance

Relation to the entity types of which type the entity is an instance of.