``bdajax`` integration for Plone.
Project description
Integration package
This is the plone integration package for bdajax.
Installation
Make egg available in your instance.
Apply extension profile.
Usage
For detailed documentation about bdajax please refer to bdajax.
Implement ajax action as browser view
An ajax action can be implemented as simple browser view. The easiest way is to render a template only. Create template tile_a.pt:
<div xmlns:ajax="http://namesspaces.bluedynamics.eu/ajax" tal:omit-tag="">
<!-- the tile -->
<div class="tile_a"
style="background-color:#ffc261;">
<h3>I am tile A</h3>
<!-- perform action directly. here we render tile_b, see below -->
<a href=""
ajax:bind="click"
ajax:action="bdajax_example_tile_b:.tile_a:replace"
ajax:target=""
tal:attributes="ajax:target context/absolute_url">alter me</a>
</div>
</div>
Configure via ZCML:
<browser:page for="*" name="bdajax_example_tile_a" template="tile_a.pt" permission="zope2.View" />
Implement ajax action as content provider
Create a template tile_b.pt containing the markup:
<div xmlns:ajax="http://namesspaces.bluedynamics.eu/ajax" tal:omit-tag="">
<!-- bind custom event to tile, perform action if event triggered -->
<!-- when event gets triggered, tile_a gets rendered, see above -->
<div class="tile_b"
style="background-color:#61ff68;"
ajax:bind="altertile"
ajax:action="bdajax_example_tile_a:.tile_b:replace">
<h3>I am tile B</h3>
<!-- bind element to click event and trigger custom event -->
<a href=""
ajax:bind="click"
ajax:event="altertile:.tile_b"
ajax:target=""
tal:attributes="ajax:target context/absolute_url">alter me</a>
</div>
</div>
Create content provider in provider.py:
from Acquisition import Explicit
from zope.interface import (
Interface,
implementer,
)
from zope.component import adapter
from zope.publisher.interfaces.browser import (
IBrowserRequest,
IBrowserView,
)
from zope.contentprovider.interfaces import IContentProvider
from Products.Five.browser.pagetemplatefile import ViewPageTemplateFile
from bda.plone.ajax import ajax_message
@implementer(IContentProvider)
@adapter(Interface, IBrowserRequest, IBrowserView)
class Provider(Explicit):
template = ViewPageTemplateFile(u'tile_b.pt')
def __init__(self, context, request, view):
self.__parent__ = view
self.context = context
self.request = request
def update(self):
pass
def render(self):
# set here continuation message. See bda.plone.ajax.__init__ for
# details.
ajax_message(self.request, 'Demo continuation message', flavor='info')
return self.template(self)
Configure provider via ZCML:
<adapter name="bdajax_example_tile_b" provides="zope.contentprovider.interfaces.IContentProvider" factory=".provider.Provider" />
Implement a wrapper view
The two ajax action rendering snippets above each render a tile only. now we need to wrap this inside a plone view. Create template ploneview.pt:
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"
xmlns:tal="http://xml.zope.org/namespaces/tal"
xmlns:metal="http://xml.zope.org/namespaces/metal"
xmlns:i18n="http://xml.zope.org/namespaces/i18n"
lang="en"
metal:use-macro="here/main_template/macros/master">
<body>
<metal:main fill-slot="main">
<tal:main-macro metal:define-macro="main">
<tal:tile replace="structure context/@@bdajax_example_tile_a" />
</tal:main-macro>
</metal:main>
</body>
</html>
And register via ZCML:
<browser:page for="*" name="bdajax_example_view" template="ploneview.pt" permission="zope2.View" />
Now start instance and navigate to @@bdajax_example_view. You get initially tile a rendered switching to tile b on click and vise versa. This code equates the one contained in examples folder.
Implement an ajax form
Create a view which renders a form.
Create template named ajaxform.pt. The attribute ajax:form tells bdajax to handle this form:
<form xmlns:ajax="http://namesspaces.bluedynamics.eu/ajax"
id="example_ajaxform"
method="post"
enctype="multipart/form-data"
ajax:form="True"
tal:define="error view/error"
tal:attributes="action view/form_action">
<label for="field">Field</label>
<div tal:condition="error"
tal:content="error"
style="font-weight:bold;color:red;">
Error Text
</div>
<input type="text"
name="field"
tal:attributes="value view/value" />
<input type="submit" name="submit" value="Submit" />
</form>
Create the view class:
from Products.Five import BrowserView
from bda.plone.ajax import ajax_continue
from bda.plone.ajax import ajax_form_fiddle
from bda.plone.ajax import AjaxMessage
class AjaxForm(BrowserView):
@property
def form_action(self):
return 'ajaxform?form_name=bdajax_example_form'
@property
def submitted(self):
return 'field' in self.request.form
@property
def error(self):
if not self.submitted:
return
if not self.request.form['field']:
return u'Field must not be empty'
@property
def value(self):
return self.request.form.get('field')
def __call__(self):
if self.submitted and not self.error:
ajax_continue(self.request, AjaxMessage('Success!', 'info', None))
return super(AjaxForm, self).__call__()
Register view via ZCML:
<browser:page for="*" name="bdajax_example_form" class=".AjaxForm" template="ajaxform.pt" permission="zope2.View" />
Create wrapper view for form named ajaxformview.pt:
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"
xmlns:tal="http://xml.zope.org/namespaces/tal"
xmlns:metal="http://xml.zope.org/namespaces/metal"
xmlns:i18n="http://xml.zope.org/namespaces/i18n"
lang="en"
metal:use-macro="here/main_template/macros/master">
<body>
<metal:main fill-slot="main">
<tal:main-macro metal:define-macro="main">
<tal:tile replace="structure context/@@bdajax_example_form" />
</tal:main-macro>
</metal:main>
</body>
</html>
And register via ZCML:
<browser:page for="*" name="bdajax_example_form_view" template="ajaxformview.pt" permission="zope2.View" />
Now start instance and navigate to @@bdajax_example_form_view.
Implement ajax batch
Create a batch implementation in python, i.e. examplebatch.py calculating batch vocab:
from Products.Five import BrowserView
from bda.plone.ajax.batch import Batch
RESULTLEN = 45
SLICESIZE = 10
class ExampleBatch(Batch):
batchname = 'examplebatch'
@property
def vocab(self):
ret = list()
# len result
count = RESULTLEN
# entries per page
slicesize = SLICESIZE
# number of batch pages
pages = count / slicesize
if count % slicesize != 0:
pages += 1
# current batch page
current = self.request.get('b_page', '0')
for i in range(pages):
# create query with page number
query = 'b_page=%s' % str(i)
# create batch target url
url = '%s?%s' % (self.context.absolute_url(), query)
# append batch page
ret.append({
'page': '%i' % (i + 1),
'current': current == str(i),
'visible': True,
'url': url,
})
return ret
Create batched result view:
class BatchedResult(BrowserView):
@property
def batch(self):
return ExampleBatch(self.context, self.request)()
@property
def slice(self):
result = range(RESULTLEN)
current = int(self.request.get('b_page', '0'))
start = current * SLICESIZE
end = start + SLICESIZE
return result[start:end]
Create batched result template, i.e. batchedresult.pt:
<div xmlns="http://www.w3.org/1999/xhtml"
xml:lang="en"
xmlns:tal="http://xml.zope.org/namespaces/tal"
xmlns:i18n="http://xml.zope.org/namespaces/i18n"
i18n:domain="bda.plone.ajax"
class="examplebatchsensitiv"
ajax:bind="batchclicked"
tal:attributes="ajax:target context/absolute_url;
ajax:action string:bdajax_example_batched_result:.examplebatchsensitiv:replace">
<tal:listingbatch replace="structure view/batch" />
<ul>
<li tal:repeat="item view/slice" tal:content="item">x</li>
</ul>
<tal:listingbatch replace="structure view/batch" />
</div>
Create wrapper view, i.e. batchview.pt:
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"
xmlns:tal="http://xml.zope.org/namespaces/tal"
xmlns:metal="http://xml.zope.org/namespaces/metal"
xmlns:i18n="http://xml.zope.org/namespaces/i18n"
lang="en"
metal:use-macro="here/main_template/macros/master"
i18n:domain="bda.plone.ajax">
<body>
<metal:main fill-slot="main">
<tal:main-macro metal:define-macro="main">
<tal:tile replace="structure context/@@bdajax_example_batched_result" />
</tal:main-macro>
</metal:main>
</body>
</html>
And register views via ZCML:
<browser:page for="*" name="bdajax_example_batch" template="batchview.pt" permission="zope2.View" /> <browser:page for="*" name="bdajax_example_batched_result" class=".examplebatch.BatchedResult" template="batchedresult.pt" permission="zope2.View" />
Now start instance and navigate to @@bdajax_example_batch. You get an example result rendered batched. This code equates the one contained in examples folder.
Examples
This package ships with examples, as explained above. To enable examples include bda.plone.ajax.examples via ZCML.
Contributors
Robert Niederreiter (Autor)
Jens W. Klein
Changes
1.5
Add ajaxform convenience browser page. [rnix, 2014-02-04]
1.4
Cleanup docs. [rnix, 2013-10-21]
Do not load examples by default. [rnix, 2013-10-21]
Add abstract batch for buidling ajax batches. [rnix, 2013-10-20]
1.3
Provide overlay configuration. [rnix, 2012-08-06]
Provide form continuation. [rnix, 2012-08-06]
1.2.2
render viewlet in IPortalTop, so it pops up centered and not at the end of the site. [jensens, 2011-12-02]
add z3c.autoinclude entry point. [jensens, 2011-12-02]
1.2.1
display bdajax.message with traceback if ajaxaction throws uncaught exception. [rnix]
1.2
add ajax continuation support and continuation helper objects and functions. [rnix]
1.1
add examples. [rnix]
add ajaxaction view. [rnix]
1.0
make it work. [rnix]
License
Copyright (c) 2010-2014, BlueDynamics Alliance, Austria All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name of the BlueDynamics Alliance nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY BlueDynamics Alliance AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BlueDynamics Alliance BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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