| Author: | Christopher Arndt |
|---|---|
| Version: | 0.1a |
| Date: | 2008-02-04 |
| Description: | TurboGears extension providing enhanced flash message display functions. |
This package provides an enhanced version of the turbogears.flash() function, giving your users much nicer-looking message boxes that can change their appearance based on the status of the message. With JavaScript enabled, messages can fade out after a timeout or be dismissed by the user with a mouse-click.
This is accomplished by encoding the message with JSON and decoding it again in the template of the target page. This is handled completely automatic and the programmer can just use the functional interface, e.g. fancyflash.error("Duh!").
Additionally, you can display messages with a simple JavaScript function call, for example when processing the results of an AJAX call in your callback function for loadJSONDoc.
For more information see the source of the fancyflash package, the epydoc-generated API documentation and the FancyFlashExample application.
To install TurboFancyFlash from the Cheeseshop use easy_install:
[sudo] easy_install TurboFancyFlash
This requires the setuptools package to be installed. If you have not done so already, download the ez_setup.py script and run it to install setuptools.
Controller (controllers.py):
# Import TurboGears
from turbogears import controllers, expose, redirect, validate, validators
# Import fancyflash package
import fancyflash as ff
# Set the default timeout for message box display
ff.set_default_flash_timeout(5)
# Let FancyFlashWidget be included on every page
ff.register_flash_widget()
class FlashTestController(controllers.Controller):
@expose('templates.welcome')
def index(self, timeout=0):
return {}
@expose()
def info(self):
ff.info("Hello TurboGears!")
redirect('/')
@expose()
@validate(validators=dict(timeout=validators.Int))
def success(self, timeout=0, tg_errors=None):
ff.success("Hello TurboGears!", timeout)
redirect('/')
@expose()
@validate(validators=dict(status=validators.String))
def message(self, status="info", tg_errors=None):
ff.statusmessage("Hello TurboGears!", status)
redirect('/')
Master template (master.kid):
<div id="main_content">
<div py:replace="tg_fancyflashwidget(tg_flash)">Status message
appears here</div>
<div py:replace="[item.text]+item[:]"/>
...
</div>
The idea for this widget is based on a blog post by Lee McFadden:
If I have time: