> This reminds me of an earlier conversation regarding an option to display
> all variables passed to the view for debugging purposes.

> It occurs to me this could be done as a "for free" variable (e.g. _data)

> Sounds easy to do. Is it practical?

> g

> _____________________________________________________________

> On 6 November 2012 22:39, Evan Miller <emmil...@gmail.com> wrote:

>> You need to pass the flash messages into the view from the controller:

>> Messages = boss_flash:get_and_clear(SessionID)
>> {ok, [{flash_messages, Messages}]}

>> View:

>> {% for message in flash_messages %} ... {% endfor %}

>> See here for a list of variables that the views can access "for free":

>> http://www.chicagoboss.org/api-view.html

>> Everything else must be passed in explicitly.

>> On Sun, Nov 4, 2012 at 7:36 AM, @chrisco <chris.come...@gmail.com> wrote:

>>> Hi,

>>> I am a beginner programmer (beginner at programming in general and
>>> Erlang and ChicagoBoss in particular) and am trying to understand Sessions
>>> and their related Flash Messages in Chicago Boss.  I have reviewed the
>>> tutorial and the API documentation and can't figure it out.  This is what
>>> I've done:

>>> Created headliners_app_controller.erl
>>> and put this as the one line in it:

>>> -module(headliners_app, [Req, SessionID]).

>>> When I run the app and use a Chrome extension ("Edit This Cookie") I see
>>> that a session has been created.  So far so good.

>>> When I try to test/experiment with boss_flash, as described here
>>> http://www.chicagoboss.org/api-session.html, I everything goes to shit.
>>>  I think (know?) I'm doing something dumb, but after trying for too long
>>> (embarrassed to say how long!), I can't figure it out and decided to ask
>>> for help, so here I am.

>>> How do I use boss_flash?  I just basically want to get to a Chicago Boss
>>> Sessions and Flash "hello world"!  Thanks.

>>> Here are further details on my beginner's folly:

>>> I added this line:
>>> boss_flash:add(SessionID, notice, "Welcome!", "Your Session has now
>>> begun!").

>>> to this file:
>>> headliners_app_controller.erl

>>> so it now looks like this:
>>> -module(appname_my_controller, [Req, SessionID]).
>>> boss_flash:add(SessionID, notice, "Welcome!", "Your Session has now
>>> begun!").

>>> I added this line to a view file:
>>> {% for flash in boss_flash %} {{ flash.method }} - {{ flash.title }} -
>>> {{ flash.message }} {% endfor %}

>>> I restarted the server with:
>>> ./init-dev.sh

>>> And get this error:
>>> Error:
>>> {function_clause,
>>>     [{erlydtl_runtime,init_counter_stats,
>>>          [undefined,undefined],
>>>          [{file,"src/erlydtl_runtime.erl"},{line,208}]},
>>>      {headliners_app_view_search_index_html,render_internal,4,[]},
>>>      {headliners_app_view_search_index_html,render,2,[]},
>>>      {boss_web_controller,render_view,6,
>>>          [{file,"src/boss/boss_web_controller.erl"},{line,836}]},
>>>      {boss_web_controller,execute_action,5,
>>>          [{file,"src/boss/boss_web_controller.erl"},{line,725}]},
>>>      {boss_web_controller,execute_action,5,
>>>          [{file,"src/boss/boss_web_controller.erl"},{line,727}]},
>>>      {boss_web_controller,process_request,5,
>>>          [{file,"src/boss/boss_web_controller.erl"},{line,459}]},
>>>      {timer,tc,3,[{file,"timer.erl"},{line,194}]}]}

>>> I tried all the combinations of moving the code to different files
>>> (mainly just the controller for the particular view I wanted to show the
>>> flash message in) and either got the same error or the server (in the
>>> server shell window) seems to keep looping through "starting development
>>> server" (or whatever the exact wording is that it uses when it launches).

>>> Thanks,
>>> Chris

>>> --

>> --
>> Evan Miller
>> http://www.evanmiller.org/

>> --

>  --