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Thanks for the examples Mike. I see you are calling and manipulating
your RBDO classes directly in your routes. That answers my
integration question. I tend to keep all that stuff in separate
model classes so that I could change ORM to say DBIX::Class without
any change to the D2 classes. But it does increase complexity. Just
a thought regarding the expansion helpers - you don't utilise the
as_tree() function anywhere? I realise your helpers do more than
just simple object-to-hash conversion.<br>
<br>
<font face="courier new, monospace">my $rv = dbo2h($student);<br>
my $rv = $student->as_tree;<br>
my $rv = $student->as_tree(deflate => 0); # to keep eg
DateTime objects<br>
</font><br>
<div class="moz-cite-prefix">On 10/09/2014 21:00, Mike Schroeder
wrote:<br>
</div>
<blockquote
cite="mid:CALnrH9dnws1Qs1vTDvc-zjwcO=-2Z_1X3Z4-CLkZGH=YD+8mPA@mail.gmail.com"
type="cite">
<div dir="ltr">Hi Richard - not sure mine is the most elegant
approach vis a vi plugins - but it is working, and it is fast :)
For production I'm running multiple instances of Dancer with
shared memcached for session management, all behind balance.
This is all on a 12-core OS X Mavericks box and barely makes a
blip on utilization.
<div><br>
</div>
<div>1) I generated all the Rose::DB::Object classes from the
MySQL schema for the RDBO classes and Manager classes.</div>
<div><br>
</div>
<div>2) I wrote a few helper functions to convert DBO objects in
hash or array of hash suitable for Dancer templating (I'll
copy those in below). I still use HTML::Template over TT just
so that I can have non-coder HTML designers work with the
templates, so these data structures work for that template
engine. The result is a route that looks like this:</div>
<div><br>
</div>
<div>
<div><font face="courier new, monospace">#----------------------------------------------------------------------</font></div>
<div><font face="courier new, monospace">get
'/modal/points/:student_id' => sub {</font></div>
<div><font face="courier new, monospace">#----------------------------------------------------------------------</font></div>
<div><font face="courier new, monospace"> my $student =
NDB::Student->new( id => params->{student_id}
)->load;</font></div>
<div><font face="courier new, monospace"> my $rv =
dbo2h($student);</font></div>
<div><font face="courier new, monospace"> template
"staff/modal/points", $rv, {layout => "simple"};</font></div>
<div><font face="courier new, monospace">};</font></div>
</div>
<div><br>
</div>
<div>Here are a few other sample routes:</div>
<div><br>
</div>
<div>
<div><font face="courier new, monospace">#----------------------------------------------------------------------</font></div>
<div><font face="courier new, monospace">post '/studio' =>
sub {</font></div>
<div><font face="courier new, monospace">#----------------------------------------------------------------------</font></div>
<div><font face="courier new, monospace"> my @fields = ( qw(
studio_name campus_id location session_rate</font></div>
<div><font face="courier new, monospace">
calendar_id ) );</font></div>
<div><font face="courier new, monospace">
dbo_add_update("NDB::Studio", { params }, \@fields );</font></div>
<div><font face="courier new, monospace"> redirect
"/admin/campus";</font></div>
<div><font face="courier new, monospace">};</font></div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace">#----------------------------------------------------------------------</font></div>
<div><font face="courier new, monospace">post '/studio/delete'
=> sub {</font></div>
<div><font face="courier new, monospace">#----------------------------------------------------------------------</font></div>
<div><font face="courier new, monospace"> my $p =
NDB::Studio->new( id => params->{id} );</font></div>
<div><font face="courier new, monospace"> if (
params->{id} == params->{confirm_id} ) {</font></div>
<div><font face="courier new, monospace"> $p->delete;</font></div>
<div><font face="courier new, monospace"> }</font></div>
<div><font face="courier new, monospace"> redirect
"/admin/campus";</font></div>
<div><font face="courier new, monospace">};</font></div>
</div>
<div><br>
</div>
<div>I also have some other helpers that follow RDBO
relationships and inflate the data structures for templating:</div>
<div><br>
</div>
<div>
<div><font face="courier new, monospace">#----------------------------------------------------------------------</font></div>
<div><font face="courier new, monospace">get '/campus' =>
sub {</font></div>
<div><font face="courier new, monospace">#----------------------------------------------------------------------</font></div>
<div><font face="courier new, monospace"> my $campuses =
NDB::Campus::Manager->get_campus();</font></div>
<div><font face="courier new, monospace"> my $rv = dbom2aoh(
$campuses, { studios => 'studio_list',</font><span
style="font-family:'courier new',monospace"> staff =>
'staff_list', } );</span></div>
<div><font face="courier new, monospace"> template
"admin/campus", { campus_list => $rv, add_navbar() }, {
layout => 'staff'};</font></div>
<div><font face="courier new, monospace">};</font></div>
</div>
<div><br>
</div>
<div><br>
</div>
<div>3) The helper functions help glue Dancer and RDBO together:</div>
<div><br>
</div>
<div>
<div><br>
</div>
<div><font face="courier new, monospace">=head2 dbo2h()</font></div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace">dbo2h - convert a DBO
object into a hash of key/value pairs.</font></div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace"> my $hashref =
dbo2h( $dboobject, $date_format_string, $expandhash,
$prepend );</font></div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace">=cut</font></div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace">sub dbo2h {</font></div>
<div><font face="courier new, monospace"> my $row = shift;</font></div>
<div><font face="courier new, monospace"> my $date_format =
shift || '%Y-%m-%d %T';</font></div>
<div><font face="courier new, monospace"> my $expand =
shift;</font></div>
<div><font face="courier new, monospace"> my $prepend =
shift;</font></div>
<div><font face="courier new, monospace"> my $parent_prepend
= shift;</font></div>
<div><font face="courier new, monospace"> my %hash =
$row->column_value_pairs;</font></div>
<div><font face="courier new, monospace"> foreach my $key (
keys %$expand ) {</font></div>
<div><font face="courier new, monospace"> my $reln =
$expand->{$key};</font></div>
<div><font face="courier new, monospace"> if ( $prepend )
{</font></div>
<div><font face="courier new, monospace"> $hash{$reln
. '_' . $key} = ( $row->$reln ? $row->$reln->$key
: '' );</font></div>
<div><font face="courier new, monospace"> } else {</font></div>
<div><font face="courier new, monospace"> $hash{$key}
= ( $row->$reln ? $row->$reln->$key : '');</font></div>
<div><font face="courier new, monospace"> }</font></div>
<div><font face="courier new, monospace"> }</font></div>
<div><font face="courier new, monospace"> foreach my $key (
keys %hash ) {</font></div>
<div><font face="courier new, monospace"> if ( ref
$hash{$key} eq 'DateTime' ) {</font></div>
<div><font face="courier new, monospace"> $hash{$key}
= $hash{$key}->strftime($date_format);</font></div>
<div><font face="courier new, monospace"> }</font></div>
<div><font face="courier new, monospace"> elsif ( ref
$hash{$key} eq 'Time::Clock' ) {</font></div>
<div><font face="courier new, monospace"> $hash{$key}
= $hash{$key}->as_string;</font></div>
<div><font face="courier new, monospace"> }</font></div>
<div><font face="courier new, monospace"> $hash{$key} =~
s/\s+$//g;</font></div>
<div><font face="courier new, monospace"> if (
$parent_prepend ) {</font></div>
<div><font face="courier new, monospace">
$hash{$parent_prepend.'_'.$key} = delete $hash{$key};</font></div>
<div><font face="courier new, monospace"> }</font></div>
<div><font face="courier new, monospace"> }</font></div>
<div><font face="courier new, monospace"> return \%hash;</font></div>
<div><font face="courier new, monospace">}</font></div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace">=head2 dbo2aoh()</font></div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace">dbo2aoh - convert a
DBO set of objects into an array of hash of key/value
pairs.</font></div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace"> my $arrayref =
dbo2aoh( $dboarray, $date_format_string, $expandhash,
$prepend );</font></div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace">=cut</font></div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace">sub dbo2aoh {</font></div>
<div><font face="courier new, monospace"> my $rows = shift;</font></div>
<div><font face="courier new, monospace"> my $date_format =
shift;</font></div>
<div><font face="courier new, monospace"> my $expandhash =
shift;</font></div>
<div><font face="courier new, monospace"> my $prepend =
shift;</font></div>
<div><font face="courier new, monospace"> my $parent_prepend
= shift;</font></div>
<div><font face="courier new, monospace"> my @results;</font></div>
<div><font face="courier new, monospace"> foreach my $row (
@$rows ) {</font></div>
<div><font face="courier new, monospace"> push(@results,
dbo2h( $row, $date_format, $expandhash, $prepend,
$parent_prepend ) );</font></div>
<div><font face="courier new, monospace"> }</font></div>
<div><font face="courier new, monospace"> return \@results;</font></div>
<div><font face="courier new, monospace">}</font></div>
</div>
<div><font face="courier new, monospace"><br>
</font></div>
<div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace">=head2
dbo_add_update()</font></div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace">dbo_add_update -
convert Dancer params into DBO add/update</font></div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace"> my @fields = ( qw(
field1 field2 field3 ) );</font></div>
<div><font face="courier new, monospace"> @errors =
dbo_update( 'NDB::Lecture', { params }, \@fields, );</font></div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace">=cut</font></div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace">sub dbo_add_update {</font></div>
<div><font face="courier new, monospace"> my ( $class, $p,
$fields ) = @_;</font></div>
<div><font face="courier new, monospace"> my ( $obj, @errors
);</font></div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace"> if ( $p->{id} )
{</font></div>
<div><font face="courier new, monospace"> $obj =
$class->new( id => $p->{id} );</font></div>
<div><font face="courier new, monospace"> push(@errors,
"No such record") unless $obj->load_speculative;</font></div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace"> unless (
@errors ) {</font></div>
<div><font face="courier new, monospace"> foreach my
$field ( @$fields ) {</font></div>
<div><font face="courier new, monospace">
$obj->$field( $p->{$field} ) if exists
$p->{$field};</font></div>
<div><font face="courier new, monospace"> }</font></div>
<div><font face="courier new, monospace">
$obj->save;</font></div>
<div><font face="courier new, monospace"> }</font></div>
<div><font face="courier new, monospace"> } else {</font></div>
<div><font face="courier new, monospace"> my %columns;</font></div>
<div><font face="courier new, monospace"> foreach my
$field ( @$fields ) {</font></div>
<div><font face="courier new, monospace">
$columns{$field} = $p->{$field} if exists
$p->{$field};</font></div>
<div><font face="courier new, monospace"> }</font></div>
<div><font face="courier new, monospace"> $obj =
$class->new( %columns );</font></div>
<div><font face="courier new, monospace"> $obj->save;</font></div>
<div><font face="courier new, monospace"> }</font></div>
<div><font face="courier new, monospace"> return $obj;</font></div>
<div><font face="courier new, monospace">}</font></div>
</div>
<div><font face="courier new, monospace"><br>
</font></div>
<div><font face="courier new, monospace">
<div>=head2 dbom2aoh()</div>
<div><br>
</div>
<div>dbom2row - convert dbo to AOH and add DBOM
relationships as child AOH</div>
<div><br>
</div>
<div> $rv = dbo_update( $dbo, { relationship =>
'hash_key' }, $date_format_string, $expandhash, $prepend
);</div>
<div><br>
</div>
<div>=cut</div>
<div><br>
</div>
<div>sub dbom2aoh {</div>
<div> my ( $parent, $map, $dateformat, $expand, $prepend )
= @_;</div>
<div> my @rv;</div>
<div> foreach my $dbo ( @$parent ) {</div>
<div> my $row = dbo2h( $dbo, $dateformat, $expand,
$prepend );</div>
<div> foreach my $reln ( keys %$map ) {</div>
<div> my $children = $dbo->$reln;</div>
<div> $row->{ $map->{$reln} } = dbo2aoh(
$children, $dateformat );</div>
<div> }</div>
<div> push @rv, $row;</div>
<div> }</div>
<div> return \@rv;</div>
<div>}</div>
</font></div>
<div><br>
</div>
<div>Like I said in my initial post - I'm sure there are
refactor opportunities in my code - so please be kind :) I
tried to go for readability over conciseness so that I could
hand it off at some point.</div>
<div><br>
</div>
<div>Hope that helps.</div>
<div><br>
</div>
<div>Best,</div>
<div><br>
</div>
<div>Mike.</div>
<div><br>
</div>
<div class="gmail_extra">
<div>
<div dir="ltr">
<div><br>
</div>
</div>
</div>
<br>
<div class="gmail_quote">On Wed, Sep 10, 2014 at 12:19 PM,
Richard Jones <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:ra.jones@dpw.clara.co.uk" target="_blank">ra.jones@dpw.clara.co.uk</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0px 0px 0px
0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000"> Hello Mike,<br>
<br>
I was very interested to read about your experience. I'm
not touting for the job as I have a full-time job
already. But just to say I'm a recent convert to Dancer2
from developing long-term with
CGI::Application/RBDO/MySQL. I'm most interested in how
you integrated Rose with Dancer. I haven't tried it yet
as all my recent apps are small enough to use
DBIx::Simple, but I'm planning a bigger one that will
need an ORM. Do you use the MVC architecture? Do you use
an adapter class for Rose or just rely on the Dancer DB
plugin? Is your project open source or are you not able
to expose the code base publicly?<br>
<br>
Good luck recruiting.
<div>
<div class="h5"><br>
<br>
<div>On 10/09/2014 19:39, Mike Schroeder wrote:<br>
</div>
</div>
</div>
<blockquote type="cite">
<div>
<div class="h5">
<div dir="ltr">
<div>
<div dir="ltr">
<div>Hi all - I've been using Dancer for
years and have watched this list for years
- thank you to everyone for a great
framework.</div>
<div><br>
</div>
<div>In my new role at a new company (an
audio engineering and production school),
I searched for an off the shelf system to
do what I wanted, and finally gave up and
wrote my own. Dancer, Rose::DB::Object,
Bootstrap and MySQL - amazing what you can
do in 3-4 months of spare time :)</div>
<div><br>
</div>
<div>The project is up and in production,
running well, and now we are wanting to
add more features, etc. I am too busy
doing my real job (CEO) to have the time
to do the development work on the system.</div>
<div><br>
</div>
<div>I'm looking for someone who can can SSH
into our servers from anywhere, work
within my existing architecture to extend
and add features, refactor some of my
prototype code (it's not horrible, but I
know it could be better), and help move
the project forward.</div>
<div><br>
</div>
<div>The ideal candidate would have
experience with Dancer, Rose::DB::Object,
Bootstrap and MySQL. There is also a
POE-based daemon using Rose::DB::Object
running alongside for long-running
asynchronous job handling, so POE
experience would be helpful as well. </div>
<div><br>
</div>
<div>This is not a full-time job - more
project based work to add new features,
etc. I expect to keep building this out
over the next year, so I'm looking for a
good long term partner to work with. I'm
ok with different timezones, as long as we
can find some common time for Skype etc.
(I'm in Vancouver, so Pacific Timezone).</div>
<div><br>
</div>
<div>If you are interested, you can send an
email to mike at nimbusrecording dot com.
Let me know your experience and
expectations for payment.</div>
<div><br>
</div>
<div>Thanks all - I really appreciate the
Dancer community and what it allows us all
to create.</div>
<div><br>
</div>
<div>Best,</div>
<div><br>
</div>
<div>Mike.</div>
<div><br>
</div>
</div>
</div>
</div>
<br>
<fieldset></fieldset>
<br>
</div>
</div>
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</font></span></pre>
<span class=""><font color="#888888"> </font></span></blockquote>
<span class=""><font color="#888888"> <br>
<pre cols="72">--
Richard Jones</pre>
</font></span></div>
<br>
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<br>
</blockquote>
</div>
<br>
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</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
<pre wrap="">_______________________________________________
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</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Richard Jones</pre>
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