to do it depending on JSON or not use the after_render hook after_render is called with the response that is going to be sent, there you can check to see if it is a dictionary (for JSON case) and only in that case add the flash data.
On Wed, Sep 14, 2011 at 4:45 PM, julien tayon <[email protected]> wrote: > Hello, > > I try to add to the ouput dict of the json expose method the result > of flash (so that my web integrator can have my business logic > warning/error/info automagically) > > I wanted to know how to hook on @expose (in case json rendere is > called) in such a way I can alter the dict returned by the controller. > > I have 90% of the results with the following code. > > > any hint ? > > for instance imagine in the controller : > > @expose('adcop.templates.lost_password') > @validate(validators= { 'email' : validators.Email } ) > @expose('json') > @add_flash_to_outdict() > def lost(self, *a, **kw): > log = logging.getLogger("general") > email = kw.get('email') > if email is None: > flash("No email","error") > return dict(page = 'lost', fragment = fragment ) > #.... > > here is the actual result : > > {"fragment": false, "page": "lost", "_flash": {"status": "error", > "message": "No email"}} > > > in my a far away file I defined : > > from tg import flash, decorators, expose, request > import logging > import json > > log = logging.getLogger("general") > > > class add_flash_to_outdict(object): > > def __init__(self, error_handler = None, **option ): > self.error_handler = error_handler > self.option = option or dict() > > > def __call__(self, func): > #@beaker_cache(expire=30,type = 'file') > import logging > log = logging.getLogger('general') > self.log = log > > > def dict_wrap(*args, **kw): > res = func(*args, **kw) > if flash and flash.message: > res["_flash"] = { > "status" : flash.status or "", > "message" : flash.message or "" > } > return json.dumps(res) > > brutal = expose(content_type="application/json;charset='%s'" % > ( request.charset or 'utf-8')) > return brutal(dict_wrap) > > -- > You received this message because you are subscribed to the Google Groups > "TurboGears" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/turbogears?hl=en. > > -- You received this message because you are subscribed to the Google Groups "TurboGears" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/turbogears?hl=en.
