[doc] Renaming of part II sub-sections accordingly.
authorSandrine Ribeau <sandrine.ribeau@logilab.fr>
Tue, 23 Dec 2008 13:50:56 -0800
changeset 292 2d9e83c34b23
parent 291 87c8d96f6173
child 293 a21688a55d21
[doc] Renaming of part II sub-sections accordingly.
doc/book/en/B0010-define-schema.en.txt
doc/book/en/B0011-schema-stdlib.en.txt
doc/book/en/B0012-schema-definition.en.txt
doc/book/en/B0030-data-as-objects.en.txt
doc/book/en/B0031-define-entities.en.txt
doc/book/en/B021-schema-stdlib.en.txt
doc/book/en/B022-schema-definition.en.txt
doc/book/en/B031-views-stdlib.en.txt
doc/book/en/B051-define-entities.en.txt
doc/book/en/B1020-define-views.en.txt
doc/book/en/B1021-views-stdlib.en.txt
doc/book/en/B141-intro.en.txt
doc/book/en/B142-install.en.txt
doc/book/en/B2050-google-appengine.en.txt
doc/book/en/B2051-intro.en.txt
doc/book/en/B2052-install.en.txt
--- a/doc/book/en/B0010-define-schema.en.txt	Tue Dec 23 13:38:02 2008 -0800
+++ b/doc/book/en/B0010-define-schema.en.txt	Tue Dec 23 13:50:56 2008 -0800
@@ -17,6 +17,6 @@
 relation definition of the schema.
 
 
-.. include:: B021-schema-stdlib.en.txt
-.. include:: B022-schema-definition.en.txt
+.. include:: B0011-schema-stdlib.en.txt
+.. include:: B0012-schema-definition.en.txt
 
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/doc/book/en/B0011-schema-stdlib.en.txt	Tue Dec 23 13:50:56 2008 -0800
@@ -0,0 +1,75 @@
+.. -*- coding: utf-8 -*-
+
+Pre-defined schemas in the library
+----------------------------------
+
+The library defines a set of entities schemas that are required by the system
+or commonly used in `CubicWeb` applications.
+Of course, you can extend those schemas if necessarry.
+
+
+System schemas
+``````````````
+The system entities available are :
+
+* `EUser`, system users
+* `EGroup`, users groups
+* `EEType`, entity type
+* `ERType`, relation type
+
+* `State`, workflow state
+* `Transition`, workflow transition
+* `TrInfo`, record of a transition trafic for an entity 
+
+* `EmailAddress`, email address, used by the system to send notifications
+  to the users and also used by others optionnals schemas
+
+* `EProperty`, used to configure the application
+* `EPermission`, used to configure the security of the application
+
+* `Card`, generic documenting card
+* `Bookmark`, an entity type used to allow a user to customize his links within
+  the application
+
+Cubes available
+```````````````
+
+An application is based on several basic cubes. In the set of available
+basic cubes we can find for example :
+
+* `comment`, provides an entity type for `Comment` allowing us to comment others
+  site's entities
+
+* `mailinglist`, provides an entity type for `Mailinglist` which groups informations
+  in a discussion list
+
+* `file`, provides entity types for `File` et `Image` used to represent
+  files (text or binary) with additionnal informations such as MIME type or
+  encoding.
+  
+* `link`, provides an entity type for hypertext link (`Link`)
+
+* `blog`, provides an entity type weblog (`Blog`)
+
+* `person`, provides an entity type for a person (`Person`)
+
+* `addressbook`, provides an entity type used to represent phone 
+  numbers (`PhoneNumber`) and mailing address (`PostalAddress`)
+  
+* `classtags`, categorization system based on tags (`Tag`)
+
+* `classfolders`, categorization system based on folders hierarchy in order 
+  to create navigation sections (`Folder`)
+
+* `email`, archiving management for emails (`Email`, `Emailpart`,
+  `Emailthread`)
+
+* `basket`, basket management (`Basket`) allowing to group entities
+
+To declare the use of a component, once installed, add the name of the component
+to the variable `__use__` in the file `__pkginfo__.py` of your own component.
+
+.. note::
+  The listed cubes above are available as debian-packages on `CubicWeb's forge`_.
+
+.. _`CubicWeb's forge`: http://www.cubicweb.org/project?vtitle=All%20cubicweb%20projects
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/doc/book/en/B0012-schema-definition.en.txt	Tue Dec 23 13:50:56 2008 -0800
@@ -0,0 +1,386 @@
+.. -*- coding: utf-8 -*-
+
+Entity type definition
+----------------------
+
+An entity type is defined by a Python class which inherits `EntityType`. The
+class name correponds to the type name. Then the content of the class contains
+the description of attributes and relations for the defined entity type,
+for example ::
+
+  class Personne(EntityType):
+    """A person with the properties and the relations necessarry for my
+    application"""
+
+    last_name = String(required=True, fulltextindexed=True)
+    first_name = String(required=True, fulltextindexed=True)
+    title = String(vocabulary=('M', 'Mme', 'Mlle'))
+    date_of_birth = Date()
+    works_for = SubjectRelation('Company', cardinality='?*')
+
+* the name of the Python attribute corresponds to the name of the attribute
+  or the relation in `CubicWeb` application.
+
+* all built-in types are available : `String`, `Int`, `Float`,
+  `Boolean`, `Date`, `Datetime`, `Time`, `Byte`.
+
+* each entity type has at least the following meta-relations :
+
+  - `eid` (`Int`)
+  
+  - `creation_date` (`Datetime`)
+  
+  - `modification_date` (`Datetime`)
+  
+  - `created_by` (`EUser`) (which user created the entity)
+  
+  - `owned_by` (`EUser`) (who does the entity belongs to, by default the 
+     creator but not necessarry and it could have multiple owners)
+     
+  - `is` (`EEType`)
+
+  
+* it is also possible to define relations of type object by using `ObjectRelation`
+  instead of `SubjectRelation`
+
+* the first argument of `SubjectRelation` and `ObjectRelation` gives respectively
+  the object/subject entity type of the relation. This could be :  
+
+  * a string corresponding to an entity type
+
+  * a tuple of string correponding to multiple entities types
+
+  * special string such as follows :
+
+    - "**" : all types of entities
+    - "*" : all types of non-meta entities 
+    - "@" : all types of meta entities but not system entities (e.g. used for
+      the basic schema description)
+
+* it is possible to use the attribute `meta` to flag an entity type as a `meta`
+  (e.g. used to describe/categorize other entities)
+
+* optional properties for attributes and relations : 
+
+  - `description` : string describing an attribute or a relation. By default
+    this string will be used in the editing form of the entity, which means
+    that it is supposed to help the end-user and should be flagged by the
+    function `_` to be properly internationalized.
+
+  - `constraints` : list of conditions/constraints that the relation needs to
+    satisfy (c.f. `Contraints`_)
+
+  - `cardinality` : two characters string which specify the cardinality of the
+    relation. The first character defines the cardinality of the relation on
+    the subject, the second on the object of the relation. When a relation
+    has multiple possible subjects or objects, the cardinality applies to all
+    and not on a one to one basis (so it must be consistent...). The possible
+    values are inspired from regular expressions syntax :
+
+    * `1`: 1..1
+    * `?`: 0..1
+    * `+`: 1..n
+    * `*`: 0..n
+
+  - `meta` : boolean indicating that the relation is a meta-relation (false by
+    default)
+
+* optionnal properties for attributes : 
+
+  - `required` : boolean indicating if the attribute is required (false by default)
+
+  - `unique` : boolean indicating if the value of the attribute has to be unique
+    or not within all entities of the same type (false by default)
+
+  - `indexed` : boolean indicating if an index needs to be created for this 
+    attribute in the database (false by default). This is usefull only if
+    you know that you will have to run numerous searches on the value of this
+    attribute.
+
+  - `default` : default value of the attribute. In case of date types, the values
+    which could be used correpond to the RQL keywords `TODAY` and `NOW`.
+  
+  - `vocabulary` : specify static possible values of an attribute
+
+* optionnal properties of type `String` : 
+
+  - `fulltextindexed` : boolean indicating if the attribute is part of
+    the full text index (false by default) (*applicable on the type `Byte`
+    as well*)
+
+  - `internationalizable` : boolean indicating if the value of the attribute
+    is internationalizable (false by default)
+
+  - `maxsize` : integer providing the maximum size of the string (no limit by default)
+
+* optionnal properties for relations : 
+
+  - `composite` : string indicating that the subject (composite == 'subject')
+    is composed of the objects of the relations. For the opposite case (when
+    the object is composed of the subjects of the relation), we just need
+    to set 'object' as the value. The composition implies that when the relation
+    is deleted (so when the composite is deleted), the composed are also deleted.
+
+Contraints
+``````````
+By default, the available constraints types are :
+
+* `SizeConstraint` : allows to specify a minimum and/or maximum size on
+  string (generic case of `maxsize`)
+
+* `BoundConstraint` : allows to specify a minimum and/or maximum value on 
+  numeric types
+
+* `UniqueConstraint` : identical to "unique=True"
+
+* `StaticVocabularyConstraint` : identical to "vocabulary=(...)"
+
+* `RQLConstraint` : allows to specify a RQL query that needs to be satisfied
+  by the subject and/or the object of the relation. In this query the variables
+  `S` and `O` are reserved for the entities subject and object of the 
+  relation.
+
+* `RQLVocabularyConstraint` : similar to the previous type of constraint except
+  that it does not express a "strong" constraint, which means it is only used to
+  restrict the values listed in the drop-down menu of editing form, but it does
+  not prevent another entity to be selected
+
+
+Relation definition
+-------------------
+
+XXX add note about defining relation type / definition
+
+A relation is defined by a Python class heriting `RelationType`. The name
+of the class corresponds to the name of the type. The class then contains
+a description of the properties of this type of relation, and could as well 
+contains a string for the subject and a string for the object. This allows to create
+new definition of associated relations, (so that the class can have the 
+definition properties from the relation) for example ::
+
+  class locked_by(RelationType):
+    """relation on all entities indicating that they are locked"""
+    inlined = True
+    cardinality = '?*'
+    subject = '*'
+    object = 'EUser'
+
+In addition to the permissions, the properties of the relation types
+(shared also by all definition of relation of this type) are :
+
+
+* `inlined` : boolean handling the physical optimization for archiving
+  the relation in the subject entity table, instead of creating a specific
+  table for the relation. This applies to the relation when the cardinality
+  of subject->relation->object is 0..1 (`?`) or 1..1 (`1`)
+
+* `symetric` : boolean indication that the relation is symetrical, which
+  means `X relation Y` implies `Y relation X`
+
+In the case of simultaneous relations definitions, `subject` and `object`
+can both be equal to the value of the first argument of `SubjectRelation`
+and `ObjectRelation`.
+
+When a relation is not inlined and not symetrical, and it does not require
+specific permissions, its definition (by using `SubjectRelation` and
+`ObjectRelation`) is all we need.
+
+
+The security model
+------------------
+
+The security model of `cubicWeb` is based on `Access Control List`. 
+The main principles are:
+
+* users and groups of users
+* a user belongs to at least one group of user
+* permissions (read, update, create, delete)
+* permissions are assigned to groups (and not to users)
+
+For `CubicWeb` in particular:
+
+* we associate rights at the enttities/relations schema level
+* for each entity, we distinguish four kind of permissions: read,
+  add, update and delete
+* for each relation, we distinguish three king of permissions: read,
+  add and delete (we can not modify a relation)
+* the basic groups are: Administrators, Users and Guests
+* by default, users belongs to the group Users
+* there is a virtual group called `Owners users` to which we
+  can associate only deletion and update permissions
+* we can not add users to the `Owners users` group, they are
+  implicetely added to it according to the context of the objects
+  they own
+* the permissions of this group are only be checked on update/deletion
+  actions if all the other groups the user belongs does not provide
+  those permissions
+
+  
+Permissions definition
+``````````````````````
+
+Define permissions is set through to the attribute `permissions` of entities and
+relations types. It defines a dictionnary where the keys are the access types
+(action), and the values are the authorized groups or expressions.
+
+For an entity type, the possible actions are `read`, `add`, `update` and
+`delete`.
+
+For a relation type, the possible actions are `read`, `add`, and `delete`.
+
+For each access type, a tuple indicates the name of the authorized groups and/or
+one or multiple RQL expressions to satisfy to grant access. The access is
+provided once the user is in the listed groups or one of the RQL condition is
+satisfied.
+
+The standard groups are :
+
+* `guests`
+
+* `users`
+
+* `managers`
+
+* `owners` : virtual group corresponding to the entity's owner.
+  This can only be used for the actions `update` and `delete` of an entity
+  type.
+
+It is also possible to use specific groups if they are defined in the precreate 
+of the cube (``migration/precreate.py``).
+
+
+Use of RQL expression for writing rights
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+It is possible to define RQL expression to provide update permission 
+(`add`, `delete` and `update`) on relation and entity types.
+
+RQL expression for entity type permission :
+
+* you have to use the class `ERQLExpression`
+
+* the used expression corresponds to the WHERE statement of an RQL query
+
+* in this expression, the variables X and U are pre-defined references
+  respectively on the current entity (on which the action is verified) and
+  on the user who send the request
+
+* it is possible to use, in this expression, a special relation 
+  "has_<ACTION>_permission" where the subject is the user and the 
+  object is a any variable, meaning that the user needs to have
+  permission to execute the action <ACTION> on the entities related
+  to this variable 
+
+For RQL expressions on a relation type, the principles are the same except 
+for the following :
+
+* you have to use the class `RQLExpression` in the case of a non-final relation
+
+* in the expression, the variables S, O and U are pre-defined references
+  to respectively the subject and the object of the current relation (on
+  which the action is being verified) and the user who executed the query
+
+* we can also defined rights on attributes of an entity (non-final relation),
+  knowing that : 
+
+  - to defines RQL expression, we have to use the class `ERQLExpression`
+    in which X represents the entity the attribute belongs to
+
+  - the permissions `add` and `delete` are equivalent. Only `add`/`read`
+    are actually taken in consideration.
+
+In addition to that the entity type `EPermission` from the standard library
+allow to build very complex and dynamic security architecture. The schema of
+this entity type is as follow : ::
+
+    class EPermission(MetaEntityType):
+	"""entity type that may be used to construct some advanced security configuration
+	"""
+	name = String(required=True, indexed=True, internationalizable=True, maxsize=100)
+	require_group = SubjectRelation('EGroup', cardinality='+*',
+					description=_('groups to which the permission is granted'))
+	require_state = SubjectRelation('State',
+				    description=_("entity'state in which the permission is applyable"))
+	# can be used on any entity
+	require_permission = ObjectRelation('**', cardinality='*1', composite='subject',
+					    description=_("link a permission to the entity. This "
+							  "permission should be used in the security "
+							  "definition of the entity's type to be useful."))
+
+
+Example of configuration ::
+
+
+    ...
+
+    class Version(EntityType):
+	"""a version is defining the content of a particular project's release"""
+
+	permissions = {'read':   ('managers', 'users', 'guests',),
+		       'update': ('managers', 'logilab', 'owners',),
+		       'delete': ('managers', ),
+		       'add':    ('managers', 'logilab',
+				  ERQLExpression('X version_of PROJ, U in_group G,'
+						 'PROJ require_permission P, P name "add_version",'
+						 'P require_group G'),)}
+
+    ...
+
+    class version_of(RelationType):
+	"""link a version to its project. A version is necessarily linked to one and only one project.
+	"""
+	permissions = {'read':   ('managers', 'users', 'guests',),
+		       'delete': ('managers', ),
+		       'add':    ('managers', 'logilab',
+				  RRQLExpression('O require_permission P, P name "add_version",'
+						 'U in_group G, P require_group G'),)
+		       }
+	inlined = True
+
+This configuration indicates that an entity `EPermission` named
+"add_version" can be associated to a project and provides rights to create
+new versions on this project to specific groups. It is important to notice that :
+
+* in such case, we have to protect both the entity type "Version" and the relation
+  associating a version to a project ("version_of")
+
+* because of the genricity of the entity type `EPermission`, we have to execute
+  a unification with the groups and/or the states if necessary in the expression
+  ("U in_group G, P require_group G" in the above example)
+
+Use of RQL expression for reading rights
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The principles are the same but with the following restrictions :
+
+* we can not use `RRQLExpression` on relation types for reading
+
+* special relations "has_<ACTION>_permission" can not be used
+
+
+Note on the use of RQL expression for `add` permission
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+Potentially, the use of an RQL expression to add an entity or a relation
+can cause problems for the user interface, because if the expression uses
+the entity or the relation to create, then we are not able to verify the 
+permissions before we actually add the entity (please note that this is
+not a problem for the RQL server at all, because the permissions checks are
+done after the creation). In such case, the permission check methods 
+(check_perm, has_perm) can indicate that the user is not allowed to create 
+this entity but can obtain the permission. 
+To compensate this problem, it is usually necessary, for such case,
+to use an action that reflects the schema permissions but which enables
+to check properly the permissions so that it would show up if necessary.
+
+
+Updating your application with your new schema
+``````````````````````````````````````````````
+
+You have to get a shell on your application ::
+
+   cubicweb-ctl shell moninstance
+
+and type ::
+
+   add_entity_type('Personne')
+
+And restart your application!
--- a/doc/book/en/B0030-data-as-objects.en.txt	Tue Dec 23 13:38:02 2008 -0800
+++ b/doc/book/en/B0030-data-as-objects.en.txt	Tue Dec 23 13:50:56 2008 -0800
@@ -141,4 +141,4 @@
 dictionnary from the parent class to modify it). Also, modify it after the 
 class is created will not have any effect...
 
-.. include:: B051-define-entities.en.txt
+.. include:: B0031-define-entities.en.txt
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/doc/book/en/B0031-define-entities.en.txt	Tue Dec 23 13:50:56 2008 -0800
@@ -0,0 +1,168 @@
+.. -*- coding: utf-8 -*-
+
+Parametrization and specific extensions
+---------------------------------------
+
+Dynamic default values
+``````````````````````
+It is possible to define in the schema *static* default values.
+It is also possible to define in the schema *dynamic* default values
+by defining in the entity class a method `default_<attribut name>` for
+a given attribute.
+
+
+Loaded attributes and default sorting management
+````````````````````````````````````````````````
+
+* The class attribute `fetch_attrs` allows to defined in an entity class
+  a list of names of attributes or relations that should be automatically
+  loaded when we recover the entities of this type. In the case of relations,
+  we are limited to *subject of cardinality `?` or `1`* relations.
+
+* The class method `fetch_order(attr, var)` expects an attribute (or relation)
+  name as a parameter and a variable name, and it should return a string
+  to use in the requirement `ORDER BY` of an RQL query to automatically
+  sort the list of entities of such type according to this attribute, or
+  `None` if we do not want to sort on the attribute given in the parameter.
+  By default, the entities are sorted according to their creation date.
+
+* The class method `fetch_unrelated_order(attr, var)` is similar to the 
+  method `fetch_order` except that it is essentially used to control
+  the sorting of drop-down lists enabling relations creation in 
+  the editing view of an entity.
+
+The function `fetch_config(fetchattrs, mainattr=None)` simplifies the
+definition of the attributes to load and the sorting by returning a 
+list of attributes to pre-load (considering automatically the attributes
+of `AnyEntity`) and a sorting function based on the main attribute
+(the second parameter if specified otherwisethe first attribute from
+the list `fetchattrs`).
+This function is defined in `cubicweb.entities`.
+
+For example: ::
+
+  class Transition(AnyEntity):
+    """..."""
+    id = 'Transition'
+    fetch_attrs, fetch_order = fetch_config(['name'])
+
+Indicates that for the entity type "Transition", you have to pre-load
+the attribute `name` and sort by default on this attribute.
+
+
+Editing forms management
+````````````````````````
+It is possible to manage attributes/relations in the simple or multiple
+editing form thanks to the following *rtags*: 
+
+* `primary`, indicates that an attribute or a relation has to be inserted
+  in the simple or multiple editing forms. In the case of a relation,
+  the related entity editing form will be included in the editing form.
+
+* `secondary`, indicates that an attribute or a relation has to be inserted
+  in the simple editing form only. In the case of a relation, the related
+  entity editing form sill be included in the editing form.
+
+* `generic`, indicates that a relation has to be inserted in the simple
+  editing form, in the generic box of relation creation.
+
+* `generated`, indicates that an attribute is dynamically computed
+  or other,  and that it should not be displayed in the editing form.
+
+If necessarry, it is possible to overwrite the method  
+`relation_category(rtype, x='subject')` to dynamically compute
+a relation editing category.
+
+``add_related`` box management
+``````````````````````````````
+
+The box ``add_related`` is an automatic box that allows to create
+an entity automatically related to the initial entity (context in
+which the box is displayed). By default, the links generated in this
+box are computed from the schema properties of the displayed entity,
+but it is possible to explicitely specify them thanks to the
+following *rtags*:
+
+* `link`, indicates that a relation is in general created pointing
+  to an existing entity and that we should not to display a link
+  for this relation
+
+* `create`, indicates that a relation is in general created pointing
+  to new entities and that we should display a link to create a new
+  entity and link to it automatically
+
+
+If necessarry, it is possible to overwrite the method  
+`relation_mode(rtype, targettype, x='subject')` to dynamically
+compute a relation creation category.
+
+Please note that if at least one action belongs to the `addrelated` category,
+the automatic behavior is desactivated in favor of an explicit behavior
+(e.g. display of `addrelated` category actions only).
+
+
+Filtering table forms management
+````````````````````````````````
+
+By default, the view ``table`` manages automatically a filtering
+form of its content. The algorithm is as follows:
+
+1. we consider that the first column contains the entities to constraint
+2. we collect the first entity of the table (row 0) to represent all the 
+   others
+3. for all the others variables defined in the original request:
+   
+   1. if the varaible is related to the main variable by at least one relation
+   2. we call the method ``filterform_vocabulary(rtype, x)`` on the entity,
+      if nothing is returned (meaning a tuple `Non`, see below), we go to the
+      next variable, otherwise a form filtering element is created based on
+      the vocabulary values returned
+
+4. there is no others limitations to the `RQL`, it can include sorting, grouping
+   conditions... Javascripts functions are used to regenerate a request based on the
+   initial request and on the selected values from the filtering form.
+
+The method ``filterform_vocabulary(rtype, x, var, rqlst, args, cachekey)`` takes 
+the name of a relation and the target as parameters, which indicates of the
+entity on which we apply the method is subject or object of the relation. It
+has to return:
+
+* a 2-uple of None if it does not know how to handle the relation
+
+* a type and a list containing the vocabulary
+  
+  * the list has to contain couples (value, label)
+  * the type indicates if the value designate an integer (`type == 'int'`),
+    a string (`type =='string'` or a non-final relation (`type == 'eid'`)
+
+For example in our application managing tickets, we want to be able to filter
+them by :
+
+* type
+* priority
+* state (in_state)
+* tag (tags)
+* version (done_in)
+
+For that we define the following method: ::
+
+
+    class Ticket(AnyEntity):
+
+	...
+
+	def filterform_vocabulary(self, rtype, x, var, rqlst, args, cachekey):
+	    _ = self.req._
+	    if rtype == 'type':
+		return 'string', [(x, _(x)) for x in ('bug', 'story')]
+	    if rtype == 'priority':
+		return 'string', [(x, _(x)) for x in ('minor', 'normal', 'important')]
+	    if rtype == 'done_in':
+		rql = insert_attr_select_relation(rqlst, var, rtype, 'num')
+		return 'eid', self.req.execute(rql, args, cachekey)
+	    return super(Ticket, self).filterform_vocabulary(rtype, x, var, rqlst,
+							     args, cachekey)
+
+.. note::
+  Filtering on state and tags is automatically installed, no need to handle it.
+
--- a/doc/book/en/B021-schema-stdlib.en.txt	Tue Dec 23 13:38:02 2008 -0800
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,75 +0,0 @@
-.. -*- coding: utf-8 -*-
-
-Pre-defined schemas in the library
-----------------------------------
-
-The library defines a set of entities schemas that are required by the system
-or commonly used in `CubicWeb` applications.
-Of course, you can extend those schemas if necessarry.
-
-
-System schemas
-``````````````
-The system entities available are :
-
-* `EUser`, system users
-* `EGroup`, users groups
-* `EEType`, entity type
-* `ERType`, relation type
-
-* `State`, workflow state
-* `Transition`, workflow transition
-* `TrInfo`, record of a transition trafic for an entity 
-
-* `EmailAddress`, email address, used by the system to send notifications
-  to the users and also used by others optionnals schemas
-
-* `EProperty`, used to configure the application
-* `EPermission`, used to configure the security of the application
-
-* `Card`, generic documenting card
-* `Bookmark`, an entity type used to allow a user to customize his links within
-  the application
-
-Cubes available
-```````````````
-
-An application is based on several basic cubes. In the set of available
-basic cubes we can find for example :
-
-* `comment`, provides an entity type for `Comment` allowing us to comment others
-  site's entities
-
-* `mailinglist`, provides an entity type for `Mailinglist` which groups informations
-  in a discussion list
-
-* `file`, provides entity types for `File` et `Image` used to represent
-  files (text or binary) with additionnal informations such as MIME type or
-  encoding.
-  
-* `link`, provides an entity type for hypertext link (`Link`)
-
-* `blog`, provides an entity type weblog (`Blog`)
-
-* `person`, provides an entity type for a person (`Person`)
-
-* `addressbook`, provides an entity type used to represent phone 
-  numbers (`PhoneNumber`) and mailing address (`PostalAddress`)
-  
-* `classtags`, categorization system based on tags (`Tag`)
-
-* `classfolders`, categorization system based on folders hierarchy in order 
-  to create navigation sections (`Folder`)
-
-* `email`, archiving management for emails (`Email`, `Emailpart`,
-  `Emailthread`)
-
-* `basket`, basket management (`Basket`) allowing to group entities
-
-To declare the use of a component, once installed, add the name of the component
-to the variable `__use__` in the file `__pkginfo__.py` of your own component.
-
-.. note::
-  The listed cubes above are available as debian-packages on `CubicWeb's forge`_.
-
-.. _`CubicWeb's forge`: http://www.cubicweb.org/project?vtitle=All%20cubicweb%20projects
--- a/doc/book/en/B022-schema-definition.en.txt	Tue Dec 23 13:38:02 2008 -0800
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,386 +0,0 @@
-.. -*- coding: utf-8 -*-
-
-Entity type definition
-----------------------
-
-An entity type is defined by a Python class which inherits `EntityType`. The
-class name correponds to the type name. Then the content of the class contains
-the description of attributes and relations for the defined entity type,
-for example ::
-
-  class Personne(EntityType):
-    """A person with the properties and the relations necessarry for my
-    application"""
-
-    last_name = String(required=True, fulltextindexed=True)
-    first_name = String(required=True, fulltextindexed=True)
-    title = String(vocabulary=('M', 'Mme', 'Mlle'))
-    date_of_birth = Date()
-    works_for = SubjectRelation('Company', cardinality='?*')
-
-* the name of the Python attribute corresponds to the name of the attribute
-  or the relation in `CubicWeb` application.
-
-* all built-in types are available : `String`, `Int`, `Float`,
-  `Boolean`, `Date`, `Datetime`, `Time`, `Byte`.
-
-* each entity type has at least the following meta-relations :
-
-  - `eid` (`Int`)
-  
-  - `creation_date` (`Datetime`)
-  
-  - `modification_date` (`Datetime`)
-  
-  - `created_by` (`EUser`) (which user created the entity)
-  
-  - `owned_by` (`EUser`) (who does the entity belongs to, by default the 
-     creator but not necessarry and it could have multiple owners)
-     
-  - `is` (`EEType`)
-
-  
-* it is also possible to define relations of type object by using `ObjectRelation`
-  instead of `SubjectRelation`
-
-* the first argument of `SubjectRelation` and `ObjectRelation` gives respectively
-  the object/subject entity type of the relation. This could be :  
-
-  * a string corresponding to an entity type
-
-  * a tuple of string correponding to multiple entities types
-
-  * special string such as follows :
-
-    - "**" : all types of entities
-    - "*" : all types of non-meta entities 
-    - "@" : all types of meta entities but not system entities (e.g. used for
-      the basic schema description)
-
-* it is possible to use the attribute `meta` to flag an entity type as a `meta`
-  (e.g. used to describe/categorize other entities)
-
-* optional properties for attributes and relations : 
-
-  - `description` : string describing an attribute or a relation. By default
-    this string will be used in the editing form of the entity, which means
-    that it is supposed to help the end-user and should be flagged by the
-    function `_` to be properly internationalized.
-
-  - `constraints` : list of conditions/constraints that the relation needs to
-    satisfy (c.f. `Contraints`_)
-
-  - `cardinality` : two characters string which specify the cardinality of the
-    relation. The first character defines the cardinality of the relation on
-    the subject, the second on the object of the relation. When a relation
-    has multiple possible subjects or objects, the cardinality applies to all
-    and not on a one to one basis (so it must be consistent...). The possible
-    values are inspired from regular expressions syntax :
-
-    * `1`: 1..1
-    * `?`: 0..1
-    * `+`: 1..n
-    * `*`: 0..n
-
-  - `meta` : boolean indicating that the relation is a meta-relation (false by
-    default)
-
-* optionnal properties for attributes : 
-
-  - `required` : boolean indicating if the attribute is required (false by default)
-
-  - `unique` : boolean indicating if the value of the attribute has to be unique
-    or not within all entities of the same type (false by default)
-
-  - `indexed` : boolean indicating if an index needs to be created for this 
-    attribute in the database (false by default). This is usefull only if
-    you know that you will have to run numerous searches on the value of this
-    attribute.
-
-  - `default` : default value of the attribute. In case of date types, the values
-    which could be used correpond to the RQL keywords `TODAY` and `NOW`.
-  
-  - `vocabulary` : specify static possible values of an attribute
-
-* optionnal properties of type `String` : 
-
-  - `fulltextindexed` : boolean indicating if the attribute is part of
-    the full text index (false by default) (*applicable on the type `Byte`
-    as well*)
-
-  - `internationalizable` : boolean indicating if the value of the attribute
-    is internationalizable (false by default)
-
-  - `maxsize` : integer providing the maximum size of the string (no limit by default)
-
-* optionnal properties for relations : 
-
-  - `composite` : string indicating that the subject (composite == 'subject')
-    is composed of the objects of the relations. For the opposite case (when
-    the object is composed of the subjects of the relation), we just need
-    to set 'object' as the value. The composition implies that when the relation
-    is deleted (so when the composite is deleted), the composed are also deleted.
-
-Contraints
-``````````
-By default, the available constraints types are :
-
-* `SizeConstraint` : allows to specify a minimum and/or maximum size on
-  string (generic case of `maxsize`)
-
-* `BoundConstraint` : allows to specify a minimum and/or maximum value on 
-  numeric types
-
-* `UniqueConstraint` : identical to "unique=True"
-
-* `StaticVocabularyConstraint` : identical to "vocabulary=(...)"
-
-* `RQLConstraint` : allows to specify a RQL query that needs to be satisfied
-  by the subject and/or the object of the relation. In this query the variables
-  `S` and `O` are reserved for the entities subject and object of the 
-  relation.
-
-* `RQLVocabularyConstraint` : similar to the previous type of constraint except
-  that it does not express a "strong" constraint, which means it is only used to
-  restrict the values listed in the drop-down menu of editing form, but it does
-  not prevent another entity to be selected
-
-
-Relation definition
--------------------
-
-XXX add note about defining relation type / definition
-
-A relation is defined by a Python class heriting `RelationType`. The name
-of the class corresponds to the name of the type. The class then contains
-a description of the properties of this type of relation, and could as well 
-contains a string for the subject and a string for the object. This allows to create
-new definition of associated relations, (so that the class can have the 
-definition properties from the relation) for example ::
-
-  class locked_by(RelationType):
-    """relation on all entities indicating that they are locked"""
-    inlined = True
-    cardinality = '?*'
-    subject = '*'
-    object = 'EUser'
-
-In addition to the permissions, the properties of the relation types
-(shared also by all definition of relation of this type) are :
-
-
-* `inlined` : boolean handling the physical optimization for archiving
-  the relation in the subject entity table, instead of creating a specific
-  table for the relation. This applies to the relation when the cardinality
-  of subject->relation->object is 0..1 (`?`) or 1..1 (`1`)
-
-* `symetric` : boolean indication that the relation is symetrical, which
-  means `X relation Y` implies `Y relation X`
-
-In the case of simultaneous relations definitions, `subject` and `object`
-can both be equal to the value of the first argument of `SubjectRelation`
-and `ObjectRelation`.
-
-When a relation is not inlined and not symetrical, and it does not require
-specific permissions, its definition (by using `SubjectRelation` and
-`ObjectRelation`) is all we need.
-
-
-The security model
-------------------
-
-The security model of `cubicWeb` is based on `Access Control List`. 
-The main principles are:
-
-* users and groups of users
-* a user belongs to at least one group of user
-* permissions (read, update, create, delete)
-* permissions are assigned to groups (and not to users)
-
-For `CubicWeb` in particular:
-
-* we associate rights at the enttities/relations schema level
-* for each entity, we distinguish four kind of permissions: read,
-  add, update and delete
-* for each relation, we distinguish three king of permissions: read,
-  add and delete (we can not modify a relation)
-* the basic groups are: Administrators, Users and Guests
-* by default, users belongs to the group Users
-* there is a virtual group called `Owners users` to which we
-  can associate only deletion and update permissions
-* we can not add users to the `Owners users` group, they are
-  implicetely added to it according to the context of the objects
-  they own
-* the permissions of this group are only be checked on update/deletion
-  actions if all the other groups the user belongs does not provide
-  those permissions
-
-  
-Permissions definition
-``````````````````````
-
-Define permissions is set through to the attribute `permissions` of entities and
-relations types. It defines a dictionnary where the keys are the access types
-(action), and the values are the authorized groups or expressions.
-
-For an entity type, the possible actions are `read`, `add`, `update` and
-`delete`.
-
-For a relation type, the possible actions are `read`, `add`, and `delete`.
-
-For each access type, a tuple indicates the name of the authorized groups and/or
-one or multiple RQL expressions to satisfy to grant access. The access is
-provided once the user is in the listed groups or one of the RQL condition is
-satisfied.
-
-The standard groups are :
-
-* `guests`
-
-* `users`
-
-* `managers`
-
-* `owners` : virtual group corresponding to the entity's owner.
-  This can only be used for the actions `update` and `delete` of an entity
-  type.
-
-It is also possible to use specific groups if they are defined in the precreate 
-of the cube (``migration/precreate.py``).
-
-
-Use of RQL expression for writing rights
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-It is possible to define RQL expression to provide update permission 
-(`add`, `delete` and `update`) on relation and entity types.
-
-RQL expression for entity type permission :
-
-* you have to use the class `ERQLExpression`
-
-* the used expression corresponds to the WHERE statement of an RQL query
-
-* in this expression, the variables X and U are pre-defined references
-  respectively on the current entity (on which the action is verified) and
-  on the user who send the request
-
-* it is possible to use, in this expression, a special relation 
-  "has_<ACTION>_permission" where the subject is the user and the 
-  object is a any variable, meaning that the user needs to have
-  permission to execute the action <ACTION> on the entities related
-  to this variable 
-
-For RQL expressions on a relation type, the principles are the same except 
-for the following :
-
-* you have to use the class `RQLExpression` in the case of a non-final relation
-
-* in the expression, the variables S, O and U are pre-defined references
-  to respectively the subject and the object of the current relation (on
-  which the action is being verified) and the user who executed the query
-
-* we can also defined rights on attributes of an entity (non-final relation),
-  knowing that : 
-
-  - to defines RQL expression, we have to use the class `ERQLExpression`
-    in which X represents the entity the attribute belongs to
-
-  - the permissions `add` and `delete` are equivalent. Only `add`/`read`
-    are actually taken in consideration.
-
-In addition to that the entity type `EPermission` from the standard library
-allow to build very complex and dynamic security architecture. The schema of
-this entity type is as follow : ::
-
-    class EPermission(MetaEntityType):
-	"""entity type that may be used to construct some advanced security configuration
-	"""
-	name = String(required=True, indexed=True, internationalizable=True, maxsize=100)
-	require_group = SubjectRelation('EGroup', cardinality='+*',
-					description=_('groups to which the permission is granted'))
-	require_state = SubjectRelation('State',
-				    description=_("entity'state in which the permission is applyable"))
-	# can be used on any entity
-	require_permission = ObjectRelation('**', cardinality='*1', composite='subject',
-					    description=_("link a permission to the entity. This "
-							  "permission should be used in the security "
-							  "definition of the entity's type to be useful."))
-
-
-Example of configuration ::
-
-
-    ...
-
-    class Version(EntityType):
-	"""a version is defining the content of a particular project's release"""
-
-	permissions = {'read':   ('managers', 'users', 'guests',),
-		       'update': ('managers', 'logilab', 'owners',),
-		       'delete': ('managers', ),
-		       'add':    ('managers', 'logilab',
-				  ERQLExpression('X version_of PROJ, U in_group G,'
-						 'PROJ require_permission P, P name "add_version",'
-						 'P require_group G'),)}
-
-    ...
-
-    class version_of(RelationType):
-	"""link a version to its project. A version is necessarily linked to one and only one project.
-	"""
-	permissions = {'read':   ('managers', 'users', 'guests',),
-		       'delete': ('managers', ),
-		       'add':    ('managers', 'logilab',
-				  RRQLExpression('O require_permission P, P name "add_version",'
-						 'U in_group G, P require_group G'),)
-		       }
-	inlined = True
-
-This configuration indicates that an entity `EPermission` named
-"add_version" can be associated to a project and provides rights to create
-new versions on this project to specific groups. It is important to notice that :
-
-* in such case, we have to protect both the entity type "Version" and the relation
-  associating a version to a project ("version_of")
-
-* because of the genricity of the entity type `EPermission`, we have to execute
-  a unification with the groups and/or the states if necessary in the expression
-  ("U in_group G, P require_group G" in the above example)
-
-Use of RQL expression for reading rights
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-The principles are the same but with the following restrictions :
-
-* we can not use `RRQLExpression` on relation types for reading
-
-* special relations "has_<ACTION>_permission" can not be used
-
-
-Note on the use of RQL expression for `add` permission
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-Potentially, the use of an RQL expression to add an entity or a relation
-can cause problems for the user interface, because if the expression uses
-the entity or the relation to create, then we are not able to verify the 
-permissions before we actually add the entity (please note that this is
-not a problem for the RQL server at all, because the permissions checks are
-done after the creation). In such case, the permission check methods 
-(check_perm, has_perm) can indicate that the user is not allowed to create 
-this entity but can obtain the permission. 
-To compensate this problem, it is usually necessary, for such case,
-to use an action that reflects the schema permissions but which enables
-to check properly the permissions so that it would show up if necessary.
-
-
-Updating your application with your new schema
-``````````````````````````````````````````````
-
-You have to get a shell on your application ::
-
-   cubicweb-ctl shell moninstance
-
-and type ::
-
-   add_entity_type('Personne')
-
-And restart your application!
--- a/doc/book/en/B031-views-stdlib.en.txt	Tue Dec 23 13:38:02 2008 -0800
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,65 +0,0 @@
-.. -*- coding: utf-8 -*-
-
-Predefined views in the library
--------------------------------
-
-A certain number of views are used to build the web interface, which apply
-to one or more entities. Their identifier is what distinguish them from
-each others and the main ones are:
-
-:primary:
-    primary view of an entity, this is the view called by default when a single
-    entity is in the result set and needs to be displayed. This view is supposed
-    to render a maximum of informations about the entity.
-:secondary:
-    secondary view of an entity. By default it renders the two first attributes
-     of the entity as a clickable link redirecting to the primary view.
-:oneline:
-    similar to the `secondary` view, but called when we want the view to stand
-    on a single line, or just get a brief view. By default this view uses the
-    parameter `MAX_LINE_CHAR` to control the result size.
-:text:
-    similar to the `oneline` view, but should not contain HTML.
-:incontext, outofcontext:
-    similar to the `secondary` view, but called when an entity is considered
-    as in or out of context. By default it respectively returns the result of 
-    `textincontext` and `textoutofcontext` wrapped in a link leading to 
-    the primary view of the entity.
-:textincontext, textoutofcontext:
-    similar to the `text` view, but called is an entity is considered out or
-    in context. By default it returns respectively the result of the 
-    methods `.dc_title` and `.dc_long_title` of the entity.
-:list:
-    creates a HTML list (`<ul>`) and call the view `listitem` for each entity
-    of the result set
-:listitem:
-    redirects by default to the `outofcontext` view
-:rss:
-    creates a RSS/XML view and call the view `rssitem` for each entity of
-    the result set
-:rssitem:
-    create a RSS/XML view for each entity based on the results of the dunblin core
-    methods of the entity (`dc_*`)
-
-Start view:
-
-:index:
-    home page
-:schema:
-    display the schema of the application
-
-Special views:
-
-:noresult:
-    called if the result set is empty
-:finall:
-    display the value of a cell without trasnformation (in case of a non final
-    entity, we see the eid). Applicable on any result set.
-:table:
-    creates a HTML table (`<table>`) and call the view `cell` for each cell of
-    the result set. Applicable on any result set.
-:cell:
-    by default redirects to the `final` view if this is a final entity or
-    `outofcontext` view otherwise
-:null:
-    view always applicable and which does not return anything
--- a/doc/book/en/B051-define-entities.en.txt	Tue Dec 23 13:38:02 2008 -0800
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,168 +0,0 @@
-.. -*- coding: utf-8 -*-
-
-Parametrization and specific extensions
----------------------------------------
-
-Dynamic default values
-``````````````````````
-It is possible to define in the schema *static* default values.
-It is also possible to define in the schema *dynamic* default values
-by defining in the entity class a method `default_<attribut name>` for
-a given attribute.
-
-
-Loaded attributes and default sorting management
-````````````````````````````````````````````````
-
-* The class attribute `fetch_attrs` allows to defined in an entity class
-  a list of names of attributes or relations that should be automatically
-  loaded when we recover the entities of this type. In the case of relations,
-  we are limited to *subject of cardinality `?` or `1`* relations.
-
-* The class method `fetch_order(attr, var)` expects an attribute (or relation)
-  name as a parameter and a variable name, and it should return a string
-  to use in the requirement `ORDER BY` of an RQL query to automatically
-  sort the list of entities of such type according to this attribute, or
-  `None` if we do not want to sort on the attribute given in the parameter.
-  By default, the entities are sorted according to their creation date.
-
-* The class method `fetch_unrelated_order(attr, var)` is similar to the 
-  method `fetch_order` except that it is essentially used to control
-  the sorting of drop-down lists enabling relations creation in 
-  the editing view of an entity.
-
-The function `fetch_config(fetchattrs, mainattr=None)` simplifies the
-definition of the attributes to load and the sorting by returning a 
-list of attributes to pre-load (considering automatically the attributes
-of `AnyEntity`) and a sorting function based on the main attribute
-(the second parameter if specified otherwisethe first attribute from
-the list `fetchattrs`).
-This function is defined in `cubicweb.entities`.
-
-For example: ::
-
-  class Transition(AnyEntity):
-    """..."""
-    id = 'Transition'
-    fetch_attrs, fetch_order = fetch_config(['name'])
-
-Indicates that for the entity type "Transition", you have to pre-load
-the attribute `name` and sort by default on this attribute.
-
-
-Editing forms management
-````````````````````````
-It is possible to manage attributes/relations in the simple or multiple
-editing form thanks to the following *rtags*: 
-
-* `primary`, indicates that an attribute or a relation has to be inserted
-  in the simple or multiple editing forms. In the case of a relation,
-  the related entity editing form will be included in the editing form.
-
-* `secondary`, indicates that an attribute or a relation has to be inserted
-  in the simple editing form only. In the case of a relation, the related
-  entity editing form sill be included in the editing form.
-
-* `generic`, indicates that a relation has to be inserted in the simple
-  editing form, in the generic box of relation creation.
-
-* `generated`, indicates that an attribute is dynamically computed
-  or other,  and that it should not be displayed in the editing form.
-
-If necessarry, it is possible to overwrite the method  
-`relation_category(rtype, x='subject')` to dynamically compute
-a relation editing category.
-
-``add_related`` box management
-``````````````````````````````
-
-The box ``add_related`` is an automatic box that allows to create
-an entity automatically related to the initial entity (context in
-which the box is displayed). By default, the links generated in this
-box are computed from the schema properties of the displayed entity,
-but it is possible to explicitely specify them thanks to the
-following *rtags*:
-
-* `link`, indicates that a relation is in general created pointing
-  to an existing entity and that we should not to display a link
-  for this relation
-
-* `create`, indicates that a relation is in general created pointing
-  to new entities and that we should display a link to create a new
-  entity and link to it automatically
-
-
-If necessarry, it is possible to overwrite the method  
-`relation_mode(rtype, targettype, x='subject')` to dynamically
-compute a relation creation category.
-
-Please note that if at least one action belongs to the `addrelated` category,
-the automatic behavior is desactivated in favor of an explicit behavior
-(e.g. display of `addrelated` category actions only).
-
-
-Filtering table forms management
-````````````````````````````````
-
-By default, the view ``table`` manages automatically a filtering
-form of its content. The algorithm is as follows:
-
-1. we consider that the first column contains the entities to constraint
-2. we collect the first entity of the table (row 0) to represent all the 
-   others
-3. for all the others variables defined in the original request:
-   
-   1. if the varaible is related to the main variable by at least one relation
-   2. we call the method ``filterform_vocabulary(rtype, x)`` on the entity,
-      if nothing is returned (meaning a tuple `Non`, see below), we go to the
-      next variable, otherwise a form filtering element is created based on
-      the vocabulary values returned
-
-4. there is no others limitations to the `RQL`, it can include sorting, grouping
-   conditions... Javascripts functions are used to regenerate a request based on the
-   initial request and on the selected values from the filtering form.
-
-The method ``filterform_vocabulary(rtype, x, var, rqlst, args, cachekey)`` takes 
-the name of a relation and the target as parameters, which indicates of the
-entity on which we apply the method is subject or object of the relation. It
-has to return:
-
-* a 2-uple of None if it does not know how to handle the relation
-
-* a type and a list containing the vocabulary
-  
-  * the list has to contain couples (value, label)
-  * the type indicates if the value designate an integer (`type == 'int'`),
-    a string (`type =='string'` or a non-final relation (`type == 'eid'`)
-
-For example in our application managing tickets, we want to be able to filter
-them by :
-
-* type
-* priority
-* state (in_state)
-* tag (tags)
-* version (done_in)
-
-For that we define the following method: ::
-
-
-    class Ticket(AnyEntity):
-
-	...
-
-	def filterform_vocabulary(self, rtype, x, var, rqlst, args, cachekey):
-	    _ = self.req._
-	    if rtype == 'type':
-		return 'string', [(x, _(x)) for x in ('bug', 'story')]
-	    if rtype == 'priority':
-		return 'string', [(x, _(x)) for x in ('minor', 'normal', 'important')]
-	    if rtype == 'done_in':
-		rql = insert_attr_select_relation(rqlst, var, rtype, 'num')
-		return 'eid', self.req.execute(rql, args, cachekey)
-	    return super(Ticket, self).filterform_vocabulary(rtype, x, var, rqlst,
-							     args, cachekey)
-
-.. note::
-  Filtering on state and tags is automatically installed, no need to handle it.
-
--- a/doc/book/en/B1020-define-views.en.txt	Tue Dec 23 13:38:02 2008 -0800
+++ b/doc/book/en/B1020-define-views.en.txt	Tue Dec 23 13:50:56 2008 -0800
@@ -210,7 +210,7 @@
   the dictionnary of the forms parameters, before going the classic way (through
   step 1 and 2 described juste above)
 
-.. include:: B031-views-stdlib.en.txt
+.. include:: B1021-views-stdlib.en.txt
 
 
 XML views, binaries...
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/doc/book/en/B1021-views-stdlib.en.txt	Tue Dec 23 13:50:56 2008 -0800
@@ -0,0 +1,65 @@
+.. -*- coding: utf-8 -*-
+
+Predefined views in the library
+-------------------------------
+
+A certain number of views are used to build the web interface, which apply
+to one or more entities. Their identifier is what distinguish them from
+each others and the main ones are:
+
+:primary:
+    primary view of an entity, this is the view called by default when a single
+    entity is in the result set and needs to be displayed. This view is supposed
+    to render a maximum of informations about the entity.
+:secondary:
+    secondary view of an entity. By default it renders the two first attributes
+     of the entity as a clickable link redirecting to the primary view.
+:oneline:
+    similar to the `secondary` view, but called when we want the view to stand
+    on a single line, or just get a brief view. By default this view uses the
+    parameter `MAX_LINE_CHAR` to control the result size.
+:text:
+    similar to the `oneline` view, but should not contain HTML.
+:incontext, outofcontext:
+    similar to the `secondary` view, but called when an entity is considered
+    as in or out of context. By default it respectively returns the result of 
+    `textincontext` and `textoutofcontext` wrapped in a link leading to 
+    the primary view of the entity.
+:textincontext, textoutofcontext:
+    similar to the `text` view, but called is an entity is considered out or
+    in context. By default it returns respectively the result of the 
+    methods `.dc_title` and `.dc_long_title` of the entity.
+:list:
+    creates a HTML list (`<ul>`) and call the view `listitem` for each entity
+    of the result set
+:listitem:
+    redirects by default to the `outofcontext` view
+:rss:
+    creates a RSS/XML view and call the view `rssitem` for each entity of
+    the result set
+:rssitem:
+    create a RSS/XML view for each entity based on the results of the dunblin core
+    methods of the entity (`dc_*`)
+
+Start view:
+
+:index:
+    home page
+:schema:
+    display the schema of the application
+
+Special views:
+
+:noresult:
+    called if the result set is empty
+:finall:
+    display the value of a cell without trasnformation (in case of a non final
+    entity, we see the eid). Applicable on any result set.
+:table:
+    creates a HTML table (`<table>`) and call the view `cell` for each cell of
+    the result set. Applicable on any result set.
+:cell:
+    by default redirects to the `final` view if this is a final entity or
+    `outofcontext` view otherwise
+:null:
+    view always applicable and which does not return anything
--- a/doc/book/en/B141-intro.en.txt	Tue Dec 23 13:38:02 2008 -0800
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,44 +0,0 @@
-.. -*- coding: utf-8 -*-
-
-Introduction
-============
-
-What is  `Google AppEngine` ?
-------------------------------
-
-`Google AppEngine`_ is provided with a partial port of the `Django`
-framework, but Google stated at Google IO 2008 that it would not
-support a specific Python web framework and that all
-community-supported frameworks would be more than welcome [1]_. 
-
-Therefore `Logilab`_ ported `CubicWeb` to run on top of `Google AppEngine`'s
-datastore.
-
-.. _`Google AppEngine`: http://code.google.com/appengine/docs/whatisgoogleappengine.html
-.. _Logilab: http://www.logilab.fr/
-.. [1] for more on this matter, read our blog at http://www.logilab.org/blogentry/5216
-
-
-Essentials
-----------
-
-To build a web application for `Google App Engine`'s datastore, you
-need to have a good understanding of the main concepts of our 
-`CubicWeb` framework.
-
-The main concepts are:
-
-  - *schema*
-
-  - *query language*
-
-  - *result set*
-
-  - *views*
-
-  - *generated user interface*
-
-  - *cube*
-
-You can find detailled explanation of those concepts in :ref:`TermsVocabulary`.
-
--- a/doc/book/en/B142-install.en.txt	Tue Dec 23 13:38:02 2008 -0800
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,221 +0,0 @@
-.. -*- coding: utf-8 -*-
-
-.. _installation:
-
-Installation
-============
-
-Download the source
--------------------
-
-- The `Google AppEngine SDK` can be downloaded from:
-  http://code.google.com/appengine/downloads.html
-
-- `LAX` is available as an extension of `CubicWeb` under the GPLv2
-  license which can be downloaded from : http://cubicweb.org/
-
-Please follow instructions on how to install `CubicWeb` framework
-(:ref:`CubicWebInstallation`). 
-
-Once ``cubicweb-ctl`` is installed, then you can create a Google
-App Engine extension of our framework by running the command ::
-
-   cubicweb-ctl newgapp <myapp>
-
-This will create a directory containing ::
- 
-   `-- myapp/
-       |-- app.conf
-       |-- app.yaml
-       |-- bin/
-       |    `-- laxctl
-       |-- boostrap_cubes
-       |-- cubes/
-       |    |-- addressbook/
-       |    ..
-       |    |-- comment
-       |    ..
-       |    `-- zone/
-       |-- cubicweb/
-       |-- custom.py
-       |-- cw-cubes/
-       |-- dateutil/
-       |-- docutils/
-       |-- fckeditor/
-       |-- i18n/
-       |-- index.yaml
-       |-- loader.py
-       |-- logilab/
-       |-- main.py
-       |-- migration.py
-       |-- mx/
-       |-- roman.py
-       |-- rql/
-       |-- schema.py
-       |-- simplejson/
-       |-- tools/
-       |-- views.py
-       |-- vobject/
-       |-- yams/
-       `-- yapps/
-
-  
-This skeleton directory is a working `AppEngine` application. You will
-recognize the files ``app.yaml`` and ``main.py``. All the rest is the
-`LAX` framework and its third-party libraries. You will notice that 
-the directory ``cubes`` is a library of reusable cubes.
-
-The main directories that you should know about are:
-
-  - ``cubes`` : this is a library of reusable yams cubes. To use 
-    those cubes you will list them in the variable 
-    `included-yams-cubes` of ``app.conf``. See also :ref:`cubes`. 
-  - [WHICH OTHER ONES SHOULD BE LISTED HERE?]
-
-Dependencies
-------------
-
-Before starting anything, please make sure the following packages are installed:
-  - yaml : by default google appengine is providing yaml; make sure you can
-    import it. We recommend you create a symbolic link yaml instead of installing 
-    and using python-yaml:
-    yaml -> full/path/to/google_appengine/lib/yaml/lib/yaml/
-  - gettext
-
-Setup
------
-
-Once you executed ``cubicweb-ctl newgapp <myapp>``, you can use that ``myapp/`` 
-as an application directory and do as follows.
-
-This installation directory provides a configuration for an instance of `CubicWeb`
-ported for Google App Engine. It is installed with its own command ``laxctl`` 
-which is a port of the command tool ``cubicweb-ctl`` originally developped for 
-`CubicWeb`.
-
-You can have the details of available commands by running ::
-
-   $ python myapp/bin/laxctl --help
-
-
-Generating translation files
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-`LAX` is fully internationalized. Translation catalogs are found in
-``myapp/i18n``. To compile the translation files, use the `gettext` tools
-or the ``laxctl`` command ::
-
-  $ python myapp/bin/laxctl i18nupdate 
-  $ python myapp/bin/laxctl i18ncompile 
-
-Ignore the errors that print "No translation file found for domain
-'erudi'". They disappear after the first run of i18ncompile.
-
-.. note:: The command  myapp/bin/laxctl i18nupdate needs to be executed
-   only if your application is using cubes from ginco-apps.
-   Otherwise, please skip it.
-
-You will never need to add new entries in the translation catalog. Instead we would
-recommand you to use ``self.req._("msgId")`` in your application code
-to flag new message id to add to the catalog, where ``_`` refers to
-xgettext that is used to collect new strings to translate. 
-While running ``laxctl i18nupdate``, new string will be added to the catalogs.
-
-Generating the data directory
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-In order to generate the ``myapp/data`` directory that holds the static
-files like stylesheets and icons, you need to run the command::
-
-  $ python myapp/bin/laxctl populatedata
-
-Generating the schema diagram
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-There is a view named ``schema`` that displays a diagram of the
-entity-relationship graph defined by the schema. This diagram has to
-be generated from the command line::
-
-  $ python myapp/bin/laxctl genschema
-
-Application configuration
--------------------------
-
-Authentication
-~~~~~~~~~~~~~~
-
-You have the option of using or not google authentication for your application.
-This has to be define in ``app.conf`` and ``app.yaml``.
-
-In ``app.conf`` modify the following variable::

-  # does this application rely on google authentication service or not.
-  use-google-auth=no
- 
-In ``app.yaml`` comment the `login: required` set by default in the handler::
-
-  - url: .*
-  script: main.py
-  # comment the line below to allow anonymous access or if you don't want to use
-  # google authentication service
-  #login: required
-
-
-
-
-Quickstart : launch the application
------------------------------------
-
-On Mac OS X platforms, drag that directory on the
-`GoogleAppEngineLauncher`.
-
-On Unix and Windows platforms, run it with the dev_appserver::
-
-  $ python /path/to/google_appengine/dev_appserver.py /path/to/myapp/
-
-Once the local server is started, visit `http://MYAPP_URL/_load <http://localhost:8080/_load>`_ and sign in as administrator. 
-This will initialize the repository and enable you to log in into 
-the application and continue the installation.
-
-You should be redirected to a page displaying a message `content initialized`.
-
-Initialize the datastore
-~~~~~~~~~~~~~~~~~~~~~~~~
-
-You, then, want to visit  `http://MYAPP_URL/?vid=authinfo <http://localhost:8080/?vid=authinfo>`_ .
-If you selected not  to use google authentication, you will be prompted to a 
-login form where you should initialize the administrator login (recommended
-to use admin/admin at first). You will then be redirected to a page providing
-you the value to provide to ``./bin/laxctl --cookie``.
-
-If you choosed to use google authentication, then you will not need to set up
-and administrator login but you will get the cookie value as well.
-
-This cookie values needs to be provided to ``laxctl`` commands
-in order to handle datastore administration requests.
-
-.. image:: images/lax-book.02-cookie-values.en.png
-   :alt: displaying the detailed view of the cookie values returned
-
-
-.. note:: In case you are not redirected to a page providing the 
-   option --cookie value, please visit one more time  
-   `http://MYAPP_URL/?vid=authinfo <http://localhost:8080/?vid=authinfo>`_ .
-
-Once, you have this value, then return to the shell and execute ::
- 
-  $ python myapp/bin/laxctl db-init --cookie='dev_appserver_login=test@example.com:True; __session=7bbe973a6705bc5773a640f8cf4326cc' localhost:8080
-
-.. note:: In the case you are not using google authentication, the value returned
-   by `http://MYAPP_URL/?vid=authinfo <http://localhost:8080/?vid=authinfo>`_ 
-   will look like :
-   --cookie='__session=2b45d1a9c36c03d2a30cedb04bc37b6d'
-
-Log out by clicking in the menu at the top right corner
-and restart browsing from `http://MYAPP_URL/ <http://localhost:8080>`_ 
-as a normal user.
-
-Unless you did something to change it, http://MYAPP_URL should be
-http://localhost:8080/
-
-
--- a/doc/book/en/B2050-google-appengine.en.txt	Tue Dec 23 13:38:02 2008 -0800
+++ b/doc/book/en/B2050-google-appengine.en.txt	Tue Dec 23 13:50:56 2008 -0800
@@ -7,5 +7,5 @@
 ==========================
 
 
-.. include:: B141-intro.en.txt
-.. include:: B142-install.en.txt
+.. include:: B2051-intro.en.txt
+.. include:: B2052-install.en.txt
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/doc/book/en/B2051-intro.en.txt	Tue Dec 23 13:50:56 2008 -0800
@@ -0,0 +1,44 @@
+.. -*- coding: utf-8 -*-
+
+Introduction
+============
+
+What is  `Google AppEngine` ?
+------------------------------
+
+`Google AppEngine`_ is provided with a partial port of the `Django`
+framework, but Google stated at Google IO 2008 that it would not
+support a specific Python web framework and that all
+community-supported frameworks would be more than welcome [1]_. 
+
+Therefore `Logilab`_ ported `CubicWeb` to run on top of `Google AppEngine`'s
+datastore.
+
+.. _`Google AppEngine`: http://code.google.com/appengine/docs/whatisgoogleappengine.html
+.. _Logilab: http://www.logilab.fr/
+.. [1] for more on this matter, read our blog at http://www.logilab.org/blogentry/5216
+
+
+Essentials
+----------
+
+To build a web application for `Google App Engine`'s datastore, you
+need to have a good understanding of the main concepts of our 
+`CubicWeb` framework.
+
+The main concepts are:
+
+  - *schema*
+
+  - *query language*
+
+  - *result set*
+
+  - *views*
+
+  - *generated user interface*
+
+  - *cube*
+
+You can find detailled explanation of those concepts in :ref:`TermsVocabulary`.
+
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/doc/book/en/B2052-install.en.txt	Tue Dec 23 13:50:56 2008 -0800
@@ -0,0 +1,221 @@
+.. -*- coding: utf-8 -*-
+
+.. _installation:
+
+Installation
+============
+
+Download the source
+-------------------
+
+- The `Google AppEngine SDK` can be downloaded from:
+  http://code.google.com/appengine/downloads.html
+
+- `LAX` is available as an extension of `CubicWeb` under the GPLv2
+  license which can be downloaded from : http://cubicweb.org/
+
+Please follow instructions on how to install `CubicWeb` framework
+(:ref:`CubicWebInstallation`). 
+
+Once ``cubicweb-ctl`` is installed, then you can create a Google
+App Engine extension of our framework by running the command ::
+
+   cubicweb-ctl newgapp <myapp>
+
+This will create a directory containing ::
+ 
+   `-- myapp/
+       |-- app.conf
+       |-- app.yaml
+       |-- bin/
+       |    `-- laxctl
+       |-- boostrap_cubes
+       |-- cubes/
+       |    |-- addressbook/
+       |    ..
+       |    |-- comment
+       |    ..
+       |    `-- zone/
+       |-- cubicweb/
+       |-- custom.py
+       |-- cw-cubes/
+       |-- dateutil/
+       |-- docutils/
+       |-- fckeditor/
+       |-- i18n/
+       |-- index.yaml
+       |-- loader.py
+       |-- logilab/
+       |-- main.py
+       |-- migration.py
+       |-- mx/
+       |-- roman.py
+       |-- rql/
+       |-- schema.py
+       |-- simplejson/
+       |-- tools/
+       |-- views.py
+       |-- vobject/
+       |-- yams/
+       `-- yapps/
+
+  
+This skeleton directory is a working `AppEngine` application. You will
+recognize the files ``app.yaml`` and ``main.py``. All the rest is the
+`LAX` framework and its third-party libraries. You will notice that 
+the directory ``cubes`` is a library of reusable cubes.
+
+The main directories that you should know about are:
+
+  - ``cubes`` : this is a library of reusable yams cubes. To use 
+    those cubes you will list them in the variable 
+    `included-yams-cubes` of ``app.conf``. See also :ref:`cubes`. 
+  - [WHICH OTHER ONES SHOULD BE LISTED HERE?]
+
+Dependencies
+------------
+
+Before starting anything, please make sure the following packages are installed:
+  - yaml : by default google appengine is providing yaml; make sure you can
+    import it. We recommend you create a symbolic link yaml instead of installing 
+    and using python-yaml:
+    yaml -> full/path/to/google_appengine/lib/yaml/lib/yaml/
+  - gettext
+
+Setup
+-----
+
+Once you executed ``cubicweb-ctl newgapp <myapp>``, you can use that ``myapp/`` 
+as an application directory and do as follows.
+
+This installation directory provides a configuration for an instance of `CubicWeb`
+ported for Google App Engine. It is installed with its own command ``laxctl`` 
+which is a port of the command tool ``cubicweb-ctl`` originally developped for 
+`CubicWeb`.
+
+You can have the details of available commands by running ::
+
+   $ python myapp/bin/laxctl --help
+
+
+Generating translation files
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+`LAX` is fully internationalized. Translation catalogs are found in
+``myapp/i18n``. To compile the translation files, use the `gettext` tools
+or the ``laxctl`` command ::
+
+  $ python myapp/bin/laxctl i18nupdate 
+  $ python myapp/bin/laxctl i18ncompile 
+
+Ignore the errors that print "No translation file found for domain
+'erudi'". They disappear after the first run of i18ncompile.
+
+.. note:: The command  myapp/bin/laxctl i18nupdate needs to be executed
+   only if your application is using cubes from ginco-apps.
+   Otherwise, please skip it.
+
+You will never need to add new entries in the translation catalog. Instead we would
+recommand you to use ``self.req._("msgId")`` in your application code
+to flag new message id to add to the catalog, where ``_`` refers to
+xgettext that is used to collect new strings to translate. 
+While running ``laxctl i18nupdate``, new string will be added to the catalogs.
+
+Generating the data directory
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+In order to generate the ``myapp/data`` directory that holds the static
+files like stylesheets and icons, you need to run the command::
+
+  $ python myapp/bin/laxctl populatedata
+
+Generating the schema diagram
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+There is a view named ``schema`` that displays a diagram of the
+entity-relationship graph defined by the schema. This diagram has to
+be generated from the command line::
+
+  $ python myapp/bin/laxctl genschema
+
+Application configuration
+-------------------------
+
+Authentication
+~~~~~~~~~~~~~~
+
+You have the option of using or not google authentication for your application.
+This has to be define in ``app.conf`` and ``app.yaml``.
+
+In ``app.conf`` modify the following variable::

+  # does this application rely on google authentication service or not.
+  use-google-auth=no
+ 
+In ``app.yaml`` comment the `login: required` set by default in the handler::
+
+  - url: .*
+  script: main.py
+  # comment the line below to allow anonymous access or if you don't want to use
+  # google authentication service
+  #login: required
+
+
+
+
+Quickstart : launch the application
+-----------------------------------
+
+On Mac OS X platforms, drag that directory on the
+`GoogleAppEngineLauncher`.
+
+On Unix and Windows platforms, run it with the dev_appserver::
+
+  $ python /path/to/google_appengine/dev_appserver.py /path/to/myapp/
+
+Once the local server is started, visit `http://MYAPP_URL/_load <http://localhost:8080/_load>`_ and sign in as administrator. 
+This will initialize the repository and enable you to log in into 
+the application and continue the installation.
+
+You should be redirected to a page displaying a message `content initialized`.
+
+Initialize the datastore
+~~~~~~~~~~~~~~~~~~~~~~~~
+
+You, then, want to visit  `http://MYAPP_URL/?vid=authinfo <http://localhost:8080/?vid=authinfo>`_ .
+If you selected not  to use google authentication, you will be prompted to a 
+login form where you should initialize the administrator login (recommended
+to use admin/admin at first). You will then be redirected to a page providing
+you the value to provide to ``./bin/laxctl --cookie``.
+
+If you choosed to use google authentication, then you will not need to set up
+and administrator login but you will get the cookie value as well.
+
+This cookie values needs to be provided to ``laxctl`` commands
+in order to handle datastore administration requests.
+
+.. image:: images/lax-book.02-cookie-values.en.png
+   :alt: displaying the detailed view of the cookie values returned
+
+
+.. note:: In case you are not redirected to a page providing the 
+   option --cookie value, please visit one more time  
+   `http://MYAPP_URL/?vid=authinfo <http://localhost:8080/?vid=authinfo>`_ .
+
+Once, you have this value, then return to the shell and execute ::
+ 
+  $ python myapp/bin/laxctl db-init --cookie='dev_appserver_login=test@example.com:True; __session=7bbe973a6705bc5773a640f8cf4326cc' localhost:8080
+
+.. note:: In the case you are not using google authentication, the value returned
+   by `http://MYAPP_URL/?vid=authinfo <http://localhost:8080/?vid=authinfo>`_ 
+   will look like :
+   --cookie='__session=2b45d1a9c36c03d2a30cedb04bc37b6d'
+
+Log out by clicking in the menu at the top right corner
+and restart browsing from `http://MYAPP_URL/ <http://localhost:8080>`_ 
+as a normal user.
+
+Unless you did something to change it, http://MYAPP_URL should be
+http://localhost:8080/
+
+