[Dancer-users] How to use dancer functions in other modules

[franck]

Hi

On Tue, Mar 8, 2011 at 7:40 AM, Flavio Poletti <polettix at gmail.com> wrote:

> Hi,
>
>    first of all you should import with the ":syntax" import option to avoid
> some collateral effects that should happen only in the main module:
>
> use Dancer ':syntax';
>
> Second, looking at the code the import mechanism is quite bare-bones and
> does not allow you to perform selective import. Considering that you have
> control upon the module that needs Dancer, do you think that you can rename
> your "sub params" in some other way? I think it should be better for you too
> - having two "params" requires a switch of mental context at each edit file
> change.
>
> Cheers,
>
>
I'm in the process of merging an awesome patch by ironcamel / sawyer /
schwern where you will be able to exclude some keywords, and importing
groups of keyword (like Dancer ':moose', which will exclude before and
after)

This will be available in our next release (probably this week).


>     Flavio.
>
>
>
>
> On Tue, Mar 8, 2011 at 3:43 AM, Brian E. Lozier <brian at massassi.com>wrote:
>
>> Well I think I hit "send" too soon.  The problem is that I have a
>> "params" METHOD already defined in this form class.  When I import
>> Dancer it seems to override that method.  Is there a way to only
>> import the logging functions and not all the Dancer functions?
>>
>> Thanks!
>>
>> On Mon, Mar 7, 2011 at 6:40 PM, Brian E. Lozier <brian at massassi.com>
>> wrote:
>> > I have some modules for form generation and processing that aren't
>> > Dancer classes (in that they don't contain any routes).  Inside these
>> > I'd like to use some of the dancer functions like "params."  When I
>> > "use Dancer" at the top of one of these modules I am getting a really
>> > odd error message.
>> >
>> > runtime error
>> >
>> > Operation "eq": no method found,
>> >        left argument in overloaded package Fan::Form::Register,
>> >        right argument has no overloaded magic at
>> > /usr/local/lib/perl5/site_perl/5.12.3/Dancer/Request.pm line 177.
>> >
>> > /usr/local/lib/perl5/site_perl/5.12.3/Dancer/Request.pm around line 177
>> >
>> > 174     return %{$self->{params}} if wantarray && @_ == 1;
>> > 175     return $self->{params} if @_ == 1;
>> > 176
>> > 177     if ($source eq 'query') {
>> > 178         return %{$self->{_query_params}} if wantarray;
>> > 179         return $self->{_query_params};
>> > 180     }
>> >
>> > In my main Dancer class, Fan::Web, I have a route sub that says:
>> >
>> > my $params = params();
>> >
>> > I then pass this hashref into my form module like this:
>> >
>> >   my $form = Fan::Form::Register->new($params);
>> >
>> > If I don't "use Dancer" in the form module, all works well.  If I "use
>> > Dancer;" in the form module I get the error message.  I am trying to
>> > use Dancer so I can use the debug/warning functions.  I don't
>> > understand the error message.  I have an overloaded "" operator in the
>> > form class (to return an HTML representation of the form) but I don't
>> > know how calling the params() function in my main Dancer routes class
>> > (Fan::Web) and then passing the hashref into my form class can cause
>> > an error like this.  Any thoughts?
>> >
>> > Thanks,
>> > Brian
>> >
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>>
>
>
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>


-- 

franck cuny

http://lumberjaph.net - http://github.com/franckcuny
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