Note, you are not limited to passing just the text of the flash message via
response.flash -- instead, you can send any arbitrary HTML. So, a simpler
strategy is just to build the entire HTML DOM for the flash message and
send that in response.flash. You then just need to make two adjustments in
your layout/CSS: (1) change the HTML markup so it includes a div with just
the "flash" class and nothing else, and (2) create a CSS rule to hide the
#closeflash element automatically created by web2py.js (assuming you don't
want it). For example:
In layout.html:
<div class="flash">{{=response.flash or ''}}</div>
Add a CSS rule (in the head of layout.html or in a CSS file):
#closeflash {display: none;}
Create a flash helper function (in a model or module):
def flash(message, status='default'):
return DIV(message, BUTTON(SPAN('Close', _class='sr-only'),
data=dict(dismiss='alert'),
_type='button', _class='close'),
_class='alert alert-dismissable alert-%s' % status)
Then to set the flash message, just do:
response.flash = flash('This is a default alert')
or:
response.flash = flash('This is a warning alert', 'warning')
Anthony
On Friday, June 27, 2014 at 10:59:39 AM UTC-4, Leonel Câmara wrote:
>
> Hey,
>
> I wanted to change web2py response.flash to use bootstrap3 alerts.
>
> I started by creating an alert-default in my css since bootstrap3 doesn't
> have one and I wanted it, then I placed this in my layout.html
>
>
> <div class="{{='flash alert alert-dismissable ' + ('alert-' +
> (response.flash_status or 'default'))}}">{{if response.flash:}}
> {{=response.flash}}
> <button type="button" class="close"
> data-dismiss="alert"><span aria-hidden="true">×</span><span
> class="sr-only">Close</span></button>
> {{pass}}</div>
>
> response.flash_status was my solution so the controllers were able to
> determine what kind of flash they would want the view to show, this was
> working quite well until I started having stuff working via ajax. If a
> request was done using ajax all my alerts were being shown with default.
> After a bit of digging I found that $.web2py.flash also had a "status"
> argument that could add a class so I thought this would be quite simple.
> Nothing could be further from the truth. In the end I had to do this:
>
> 1. Add this to my models
>
> def ajax_flash_status(view):
> import urllib2
> if response.flash:
> if not response.flash_status:
> response.flash_status = 'default'
> response.headers['web2py-component-flash-status'] = \
> urllib2.quote('alert-'+xmlescape(response.flash_status)\
> .replace('\n',''))
> return view
> if request.ajax:
> response.postprocessing.append(ajax_flash_status)
>
>
> 2. Add a js file to the project which I add after all the other js files
> containing this:
>
> $.web2py.after_ajax = function (xhr) {
> /* called whenever an ajax request completes */
> var command = xhr.getResponseHeader('web2py-component-command');
> var flash = xhr.getResponseHeader('web2py-component-flash');
> var flash_status =
> xhr.getResponseHeader('web2py-component-flash-status');
> if(command !== null) {
> eval(decodeURIComponent(command));
> }
> if(flash) {
> $.web2py.flash(decodeURIComponent(flash),
> decodeURIComponent(flash_status));
> }
> };
>
> $.web2py.flash = function (message, status) {
> var flash = $('.flash');
> $.web2py.hide_flash();
>
> flash.html(message);
> if (typeof status !== 'undefined') {
> flash.removeClass('alert-default alert-success alert-info
> alert-warning alert-danger').addClass(status);
> }
> if(flash.html()) {
> flash.append(
> '<button type="button" class="close" data-dismiss="alert">' +
> '<span aria-hidden="true">×</span><span class="sr-only">' +
> w2p_ajax_close_message +
> '</span>' +
> '</button>'
> ).slideDown();
> }
> };
>
>
> Anyway, my question is, am I doing something wrong here? Wasn't there a
> simpler way to implement this?
>
>
>
>
>
>
>
--
Resources:
- http://web2py.com
- http://web2py.com/book (Documentation)
- http://github.com/web2py/web2py (Source code)
- https://code.google.com/p/web2py/issues/list (Report Issues)
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