--- a/doc/book/en/annexes/faq.rst Wed Apr 07 11:53:11 2010 +0200
+++ b/doc/book/en/annexes/faq.rst Wed Apr 07 11:56:30 2010 +0200
@@ -6,8 +6,6 @@
[XXX 'copy answer from forum' means reusing text from
http://groups.google.com/group/google-appengine/browse_frm/thread/c9476925f5f66ec6
and
-http://groups.google.com/group/google-appengine/browse_frm/thread/d791ce17e2716147/eb078f8cfe8426e0
-and
http://groups.google.com/group/google-appengine/browse_frm/thread/f48cf6099973aef5/c28cd6934dd72457
]
@@ -26,8 +24,13 @@
Python is the templating language that we use in *CubicWeb*, but again,
it does not prevent you from using a templating language.
-The reason template languages are not used in this book is that
-experience has proved us that using pure python was less cumbersome.
+Moreover, CubicWeb currently supports `simpletal`_ out of the box and
+it is also possible to use the `cwtags`_ library to build html trees
+using the `with statement`_ with more comfort than raw strings.
+
+.. _`simpletal`: http://www.owlfish.com/software/simpleTAL/
+.. _`cwtags`: http://www.cubicweb.org/project/cwtags
+.. _`with statement`: http://www.python.org/dev/peps/pep-0343/
Why do you think using pure python is better than using a template language ?
-----------------------------------------------------------------------------
@@ -36,31 +39,24 @@
already provides a consistent and strong architecture and syntax
a templating language would not reach.
-When doing development, you need a real language and template
-languages are not real languages.
-
Using Python instead of a template langage for describing the user interface
makes it to maintain with real functions/classes/contexts without the need of
learning a new dialect. By using Python, we use standard OOP techniques and
this is a key factor in a robust application.
-The `cwtags` (http://www.cubicweb.org/project/cwtags) package can be
-used in cubes to help generate html from Python with more comfort than
-raw strings.
-
Why do you use the LGPL license to prevent me from doing X ?
------------------------------------------------------------
LGPL means that *if* you redistribute your application, you need to
redistribute the changes you made to CubicWeb under the LGPL licence.
-Publishing a web site has nothing to do with redistributing
-source code. A fair amount of companies use modified LGPL code
-for internal use. And someone could publish a *CubicWeb* component
-under a BSD licence for others to plug into a LGPL framework without
-any problem. The only thing we are trying to prevent here is someone
-taking the framework and packaging it as closed source to his own
-clients.
+Publishing a web site has nothing to do with redistributing source
+code according to the terms of the LGPL. A fair amount of companies
+use modified LGPL code for internal use. And someone could publish a
+*CubicWeb* component under a BSD licence for others to plug into a
+LGPL framework without any problem. The only thing we are trying to
+prevent here is someone taking the framework and packaging it as
+closed source to his own clients.
CubicWeb looks pretty recent. Is it stable ?
@@ -77,7 +73,7 @@
SPARQL. Except that SPARQL did not exist when we started the project.
With version 3.4, CubicWeb has support for SPARQL.
-That RQL language is what is going to make a difference with django-
+The RQL language is what is going to make a difference with django-
like frameworks for several reasons.
1. accessing data is *much* easier with it. One can write complex
@@ -192,23 +188,17 @@
well defined context (request, result set). It enables much more
dynamic views.
-What is the difference between `AppRsetObject` and `AppObject` ?
-----------------------------------------------------------------
-
-`AppRsetObject` instances are selected on a request and a result
-set. `AppObject` instances are directly selected by id.
-
How to update a database after a schema modification ?
------------------------------------------------------
It depends on what has been modified in the schema.
-* Update the permissions and properties of an entity or a relation:
+* update the permissions and properties of an entity or a relation:
``sync_schema_props_perms('MyEntityOrRelation')``.
-* Add an attribute: ``add_attribute('MyEntityType', 'myattr')``.
+* add an attribute: ``add_attribute('MyEntityType', 'myattr')``.
-* Add a relation: ``add_relation_definition('SubjRelation', 'MyRelation', 'ObjRelation')``.
+* add a relation: ``add_relation_definition('SubjRelation', 'MyRelation', 'ObjRelation')``.
How to create an anonymous user ?
@@ -401,3 +391,9 @@
remove {'PR': 'Project', 'C': 'CWUser'} from solutions since your_user has no read access to cost
This is because you have to put your user in the "users" group. The user has to be in both groups.
+
+How do I translate an msg id defined (and translated) in another cube ?
+-----------------------------------------------------------------------
+
+You should put these translations in the `i18n/static-messages.pot`
+file of your own cube.
--- a/doc/book/en/development/devweb/js.rst Wed Apr 07 11:53:11 2010 +0200
+++ b/doc/book/en/development/devweb/js.rst Wed Apr 07 11:56:30 2010 +0200
@@ -4,9 +4,8 @@
----------
*CubicWeb* uses quite a bit of javascript in its user interface and
-ships with jquery (1.3.x) and parts of the jquery UI
-library, plus a number of homegrown files and also other thirparty
-libraries.
+ships with jquery (1.3.x) and parts of the jquery UI library, plus a
+number of homegrown files and also other thir party libraries.
All javascript files are stored in cubicweb/web/data/. There are
around thirty js files there. In a cube it goes to data/.
@@ -23,7 +22,7 @@
XXX external_resources variable (which needs love)
-CubicWeb javascript api
+CubicWeb javascript API
~~~~~~~~~~~~~~~~~~~~~~~
Javascript resources are typically loaded on demand, from views. The
@@ -57,13 +56,18 @@
Important AJAX APIS
~~~~~~~~~~~~~~~~~~~
+* `asyncRemoteExec` and `remoteExec` are the base building blocks for
+ doing arbitrary async (resp. sync) communications with the server
+
+* `reloadComponent` is a convenience function to replace a DOM node
+ with server supplied content coming from a specific registry (this
+ is quite handy to refresh the content of some boxes for instances)
+
* `jQuery.fn.loadxhtml` is an important extension to jQuery which
- allow proper loading and in-place DOM update of xhtml views. It is
+ allows proper loading and in-place DOM update of xhtml views. It is
suitably augmented to trigger necessary events, and process CubicWeb
specific elements such as the facet system, fckeditor, etc.
-* `asyncRemoteExec` and `remoteExec` are the base building blocks for
- doing arbitrary async (resp. sync) communications with the server
A simple example with asyncRemoteExec
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -89,20 +93,108 @@
.. sourcecode: javascript
- function async_hello(name) {
+ function asyncHello(name) {
var deferred = asyncRemoteExec('say_hello', name);
deferred.addCallback(function (response) {
alert(response);
});
- deferred.addErrback(function () {
+ deferred.addErrback(function (error) {
alert('something fishy happened');
});
}
- function sync_hello(name) {
+ function syncHello(name) {
alert( remoteExec('say_hello', name) );
}
+Anatomy of a reloadComponent call
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+`reloadComponent` allows to dynamically replace some DOM node with new
+elements. It has the following signature:
+
+* `compid` (mandatory) is the name of the component to be reloaded
+
+* `rql` (optional) will be used to generate a result set given as
+ argument to the selected component
+
+* `registry` (optional) defaults to 'components' but can be any other
+ valid registry name
+
+* `nodeid` (optional) defaults to compid + 'Component' but can be any
+ explicitly specified DOM node id
+
+* `extraargs` (optional) should be a dictionary of values that will be
+ given to the cell_call method of the component
+
+A simple reloadComponent example
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The server side implementation of `reloadComponent` is the
+js_component method of the JSonController.
+
+The following function implements a two-steps method to delete a
+standard bookmark and refresh the UI, while keeping the UI responsive.
+
+.. sourcecode:: javascript
+
+ function removeBookmark(beid) {
+ d = asyncRemoteExec('delete_bookmark', beid);
+ d.addCallback(function(boxcontent) {
+ reloadComponent('bookmarks_box', '', 'boxes', 'bookmarks_box');
+ document.location.hash = '#header';
+ updateMessage(_("bookmark has been removed"));
+ });
+ }
+
+`reloadComponent` is called with the id of the bookmark box as
+argument, no rql expression (because the bookmarks display is actually
+independant of any dataset context), a reference to the 'boxes'
+registry (which hosts all left, right and contextual boxes) and
+finally an explicit 'bookmarks_box' nodeid argument that stipulates
+the target DOM node.
+
+Anatomy of a loadxhtml call
+~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+`jQuery.fn.loadxhtml` is an important extension to jQuery which allows
+proper loading and in-place DOM update of xhtml views. The existing
+`jQuery.load`_ function does not handle xhtml, hence the addition. The
+API of loadxhtml is roughly similar to that of `jQuery.load`_.
+
+.. _`jQuery.load`: http://api.jquery.com/load/
+
+
+* `url` (mandatory) should be a complete url (typically referencing
+ the JSonController, but this is not strictly mandatory)
+
+* `data` (optional) is a dictionary of values given to the
+ controller specified through an `url` argument; some keys may have a
+ special meaning depending on the choosen controller (such as `fname`
+ for the JSonController); the `callback` key, if present, must refer
+ to a function to be called at the end of loadxhtml (more on this
+ below)
+
+* `reqtype` (optional) specifies the request method to be used (get or
+ post); if the argument is 'post', then the post method is used,
+ otherwise the get method is used
+
+* `mode` (optional) is one of `replace` (the default) which means the
+ loaded node will replace the current node content, `swap` to replace
+ the current node with the loaded node, and `append` which will
+ append the loaded node to the current node content
+
+About the `callback` option:
+
+* it is called with two parameters: the current node, and a list
+ containing the loaded (and post-processed node)
+
+* whenever is returns another function, this function is called in
+ turn with the same parameters as above
+
+This mechanism allows callback chaining.
+
+
A simple example with loadxhtml
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -110,7 +202,7 @@
injected in the live DOM. The view will be of course selected
server-side using an entity eid provided by the client side.
-.. sourcecode: python
+.. sourcecode:: python
from cubicweb import typed_eid
from cubicweb.web.views.basecontrollers import JSonController, xhtmlize
@@ -121,7 +213,7 @@
entity = self._cw.entity_from_eid(typed_eid(eid))
return entity.view('frob', name=frobname)
-.. sourcecode: javascript
+.. sourcecode:: javascript
function update_some_div(divid, eid, frobname) {
var params = {fname:'frob_status', eid: eid, frobname:frobname};
@@ -131,7 +223,7 @@
In this example, the url argument is the base json url of a cube
instance (it should contain something like
`http://myinstance/json?`). The actual JSonController method name is
-encoded in the `params` dictionnary using the `fname` key.
+encoded in the `params` dictionary using the `fname` key.
A more real-life example from CubicWeb
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
@@ -144,7 +236,7 @@
We present here a skeletal version of the mecanism used in CubicWeb
and available in web/views/tabs.py, in the `LazyViewMixin` class.
-.. sourcecode: python
+.. sourcecode:: python
def lazyview(self, vid, rql=None):
""" a lazy version of wview """
@@ -161,7 +253,7 @@
load_now('#lazy-%(vid)s');});"""
% {'event': 'load_%s' % vid, 'vid': vid})
-This creates a `div` with an specific event associated to it.
+This creates a `div` with a specific event associated to it.
The full version deals with:
@@ -177,7 +269,7 @@
The javascript side is quite simple, due to loadxhtml awesomeness.
-.. sourcecode: javascript
+.. sourcecode:: javascript
function load_now(eltsel) {
var lazydiv = jQuery(eltsel);
@@ -205,10 +297,10 @@
computation-intensive web page could be scinded into one fast-loading
part and a delayed part).
-In the server side, a simple call to a javascript function is
+On the server side, a simple call to a javascript function is
sufficient.
-.. sourcecode: python
+.. sourcecode:: python
def forceview(self, vid):
"""trigger an event that will force immediate loading of the view
@@ -218,49 +310,17 @@
The browser-side definition follows.
-.. sourcecode: javascript
+.. sourcecode:: javascript
function trigger_load(divid) {
jQuery('#lazy-' + divd).trigger('load_' + divid);
}
-Anatomy of a lodxhtml call
-~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-The loadxhtml extension to jQuery accept many parameters with rich
-semantics. Let us detail these.
-
-* `url` (mandatory) should be a complete url, typically based on the
- JSonController, but this is not strictly mandatory
-
-* `data` (optional) is a dictionnary of values given to the
- controller specified through an `url` argument; some keys may have a
- special meaning depending on the choosen controller (such as `fname`
- for the JSonController); the `callback` key, if present, must refer
- to a function to be called at the end of loadxhtml (more on this
- below)
-
-* `reqtype` (optional) specifies the request method to be used (get or
- post); if the argument is 'post', then the post method is used,
- otherwise the get method is used
-
-* `mode` (optional) is one of `replace` (the default) which means the
- loaded node will replace the current node content, `swap` to replace
- the current node with the loaded node, and `append` which will
- append the loaded node to the current node content
-About the `callback` option:
-
-* it is called with two parameters: the current node, and a list
- containing the loaded (and post-processed node)
-
-* whenever is returns another function, this function is called in
- turn with the same parameters as above
-
-This mecanism allows callback chaining.
-
+XXX reloadComponent
+XXX userCallback / user_callback
Javascript library: overview
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
--- a/doc/book/en/development/entityclasses/application-logic.rst Wed Apr 07 11:53:11 2010 +0200
+++ b/doc/book/en/development/entityclasses/application-logic.rst Wed Apr 07 11:56:30 2010 +0200
@@ -8,7 +8,7 @@
.. _`ORM`: http://en.wikipedia.org/wiki/Object-relational_mapping
Entities objects are used in the repository and web sides of
-CubicWeb. In the repository side of things, one should manipulate them
+CubicWeb. On the repository side of things, one should manipulate them
in Hooks and Operations.
Hooks and Operations provide support for the implementation of rules
@@ -19,7 +19,7 @@
So a lot of an application's business rules will be written in Hooks
(or Operations).
-In the web side, views also typically operate using entity
+On the web side, views also typically operate using entity
objects. Obvious entity methods for use in views are the dublin code
method like dc_title, etc. For separation of concerns reasons, one
should ensure no ui logic pervades the entities level, and also no
--- a/web/data/cubicweb.ajax.js Wed Apr 07 11:53:11 2010 +0200
+++ b/web/data/cubicweb.ajax.js Wed Apr 07 11:56:30 2010 +0200
@@ -239,7 +239,7 @@
function asyncRemoteExec(fname /* ... */) {
setProgressCursor();
var props = {'fname' : fname, 'pageid' : pageid,
- 'arg': map(jQuery.toJSON, sliceList(arguments, 1))};
+ 'arg': map(jQuery.toJSON, sliceList(arguments, 1))};
var deferred = loadRemote(JSON_BASE_URL, props, 'POST');
deferred = deferred.addErrback(remoteCallFailed);
deferred = deferred.addErrback(resetCursor);
--- a/web/views/basecontrollers.py Wed Apr 07 11:53:11 2010 +0200
+++ b/web/views/basecontrollers.py Wed Apr 07 11:56:30 2010 +0200
@@ -409,6 +409,7 @@
extraargs = extraargs or {}
stream = comp.set_stream()
comp.render(**extraargs)
+ # XXX why not _call_view ?
extresources = self._cw.html_headers.getvalue(skiphead=True)
if extresources:
stream.write(u'<div class="ajaxHtmlHead">\n')