1 .. _pre_defined_entity_types:

     2 

     3 Pre-defined entities in the library

     4 -----------------------------------

     5 

     6 The library defines a set of entity schemas that are required by the system

     7 or commonly used in *CubicWeb* instances.

     8 

     9 

    10 Entity types used to store the schema

    11 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    12 * _`CWEType`, entity type

    13 * _`CWRType`, relation type

    14 * _`CWRelation`, relation definition

    15 * _`CWAttribute`, attribute relation definition

    16 * _`CWConstraint`,  `CWConstraintType`, `RQLExpression`

    17 

    18 Entity types used to manage users and permissions

    19 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    20 * _`CWUser`, system users

    21 * _`CWGroup`, users groups

    22 

    23 Entity types used to manage workflows

    24 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    25 * :ref:`Workflow <Workflow>`, workflow entity, linked to some entity types which may use this workflow

    26 * _`State`, workflow state

    27 * _`Transition`, workflow transition

    28 * _`TrInfo`, record of a transition trafic for an entity

    29 

    30 Other entity types

    31 ~~~~~~~~~~~~~~~~~~

    32 * _`CWCache`, cache entities used to improve performances

    33 * _`CWProperty`, used to configure the instance

    34 

    35 * _`EmailAddress`, email address, used by the system to send notifications

    36   to the users and also used by others optionnals schemas

    37 

    38 * _`Bookmark`, an entity type used to allow a user to customize his links within

    39   the instance

    40 

    41 * _`ExternalUri`, used for semantic web site to indicate that an entity is the

    42   same as another from an external site