Another possible approach:
In a model or module:
def flash(message, classes=None):
return CAT(message,
SCRIPT('jQuery(".flash").addClass("%s");' % classes) if
classes else '')
Then to create a flash message:
response.flash = flash('Congratulations, it worked!', 'success')
Anthony
On Thursday, November 20, 2014 7:19:52 AM UTC-5, Leonel Câmara wrote:
>
> Ok here it goes, brace yourself.
>
> First in layout.html replace the original flash div with:
>
> <div class="{{='flash alert alert-dismissable ' + ('alert-' +
> (response.flash_status or 'default'))}}">{{if
> response.flash:}}{{=response.flash}}{{pass}}</div>
>
>
> This will be enough to put some color in it using response.flash_status in
> a controller for example:
>
> response.flash = 'Form Accepted'
> response.flash_status = 'success'
>
>
> However what about session.flash and session.flash_status? You can add
> this to your models:
>
> if session.flash_status:
> response.flash_status = session.flash_status
> del session.flash_status
>
>
> Ok now we have it working with session and response, however what about
> when we get a flash from an ajax action that has a response.flash (for
> instance a form in a loaded component). This one is slightly more
> complicated and you need to add this to your 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)
>
> This is not enough, the only thing we did is make sure the status goes in
> a response header if we're answering an ajax request. Now we need to use
> it. To do that, we need to "patch" web2py.js, so you need to create a
> flashstatus.js file in your static folder and make sure it's included in
> your layout.html *AFTER* web2py.js. There, you put the following code:
>
> $.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();
> }
> };
>
>
> Aaaand you're done!
>
>
> I should probably make a plugin out of this to simplify stuff.
>
>
>
>
--
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- http://web2py.com/book (Documentation)
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