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Handle web application parts as tiles.

Project description

A tile is a piece of web application, i.e. a form, a navigation, etc.

Splitting your application in such small and logic application parts makes it easy to re-use this application, simplifies application ajaxification and the use of same application parts in different manners.


>>> from bda.bfg.tile import Tile
>>> from bda.bfg.tile import TileRenderer
>>> from bda.bfg.tile import registerTile
>>> from bda.bfg.tile import tile

We need some dummies as model and request.:

>>> class Model(object): pass
>>> model = Model()
>>> from repoze.bfg.request import DEFAULT_REQUEST_FACTORIES
>>> request = DEFAULT_REQUEST_FACTORIES[None]['factory'](environ={})

The pure Tile itself. Normally you do not create this directly, this is done due registration, see below.:

>>> mytile = Tile('testdata/', None)
>>> mytile(model,  request)
u'<span>Tile One</span>'

Register a tile using the prior template testtemplate. When no object is given, the default tile is instanciated as above.:

>>> registerTile('tileone', 'testdata/')

Render the already registered tile.:

>>> TileRenderer(model, request)('tileone')
u'<span>Tile One</span>'

Now the decorator - level=1 is needed for the doctest only to reduce the module level.:

>>> @tile('tiletwo', 'testdata/', level=1)
... class Tile2(Tile):
...     data = u'custom'
>>> TileRenderer(model, request)('tiletwo')
u'<span>Tile Two: <b><span>Tile One</span></b></span>'

You can define an attribute which is responsible to render the tile instead of defining a template. By default render is taken. With the keyword argument attribute you can point to a different attribute.:

>>> @tile('attrtile')
... class Tile2(Tile):
...     def render(self):
...         return u'<h1>Rendered via attribute call</h1>'
>>> TileRenderer(model, request)('attrtile')
u'<h1>Rendered via attribute call</h1>'
>>> @tile('attrtile', attribute='foobar')
... class Tile2(Tile):
...     def foobar(self):
...         return u'<h1>Rendered via attribute foobar call</h1>'
>>> TileRenderer(model, request)('attrtile')
u'<h1>Rendered via attribute foobar call</h1>'

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