Hi David, I was able to get this code to work so thank you very much as it was very helpful. Now on to try and somehow figure out how I can get the hash refrence into my bootstrap drop down menu. Ughh...
2015-08-19 22:13 GMT-05:00 David H <[email protected]>: > Hi Richard, > > There are two ways that I get info into a page in Dancer/2. > The first is to use an Ajax call, something like this: > $("#llinktoclick").click(function(event) { > var DoggyName = $('#DoggyName').val(); > > event.preventDefault(); // Important to ensure the link doesn't get > submitted. > > $.ajax({ > method: "POST", > url: "/getDoggyDetails", > data: { Doggy: DoggyName } // Optional, will be sent through as POST > data ( ie. params->{'Doggy'} ), > // you can also use the route, by doing url: "/getDoggyDetails" + '/' > + DoggyName , instead > }) > > .done(function( msg ) { > // Do something here like clear and append a status box. > $('#ResponseText').empty(); // clear > $('#ResponseText').append(msg); // append the return value from your > POST call > }); > > }); > > Then in your .pm file: > > post '/getDoggyDetails' => sub { > my $params = request->params; > my $doggyName = $params->{'Doggy'} || "Not entered"; # the || stops > uninitialised value warnings in perl. > return "Please enter a doggy name" if $doggyName eq "Not entered"; > # DO stuff here with $doggyName etc... > return "This is the completion message to tell you it is all done"; > }; > > > The second way, which is probably what you are more interested in, is to > pass it directly from the route. With mysql you can probably do a straight > fetchallhashref and then pass the response directly to the page, then > iterate through the values with template toolkit. > With your route in the Dancer pm file: > > any [ 'get', 'post' ] => '/pagetoLoad' => sub { > > my $sql = "SELECT * FROM Doggies"; > # mysql connection stuff etc... > # Put it into a hashref > # my $doggieRef = $sth->fetchall_hashref(['ID','DoggyTagID'])); # > Double attribute version, not common > my $doggieRef = $sth->fetchall_hashref('ID'); # Normal, single > attribute version > > # The Ref should contain things like $doggieRef->{'1'}{'Name'} = > "Rover"; because of the way we are iterating it through with Template > Toolkit. > # I would also recommend Data::Dumper to see the contents of your query > my $dumperDoggieText = Dumper($doggieRef); > print "Doggy text from sql query is: $dumperDoggieText\n"; > # And, the other important part, sending it to the page. > > template 'templateName.tt', { > 'Doggies' => $doggieRef, # Make sure 'Doggies' here is what you > will iterate through on the page > 'Testing' => "This is text to test to make sure this will come > through", # to test, use this like <% Testing %> on your template page > }, {}; > }; > > Then using Template Toolkit, in your template file, you can do something > like: > > <% FOREACH id IN Doggies.keys %> > > <% Doggies.$id.Name %> > > <% END %> > > And also do our little test just to make sure values are coming through. > > <% Testing %> > Which should print out: "This is text to test to make sure this will come > through" (without the quotes) > > In the end Template Toolkit can be a bit confusing with Hashes but it does > support Perl hashes very well and also nested attributes, (hashes of hashes > etc...). > > I don't have a complete '"working example" on hand but if there is > anything confusing just let me know and if anyone else sees anything > blatantly wrong, please shout out. > > David > > > On Thu, Aug 20, 2015 at 11:47 AM, Richard Reina <[email protected]> > wrote: > >> Have been learning Dancer2 over the last few weeks and really like it. >> Wondering if someone can tell me how I can load data from a MySQL database >> into a dancer rendered page. I am comfortable writing SQL in perl via >> perl->DBI just don't have any idea how to bring the data from a fetch into >> a webpage so that I can display it directly on the page or load it into a >> dropdown menu. Any help is greatly appreciated. >> >> Thanks >> >> _______________________________________________ >> dancer-users mailing list >> [email protected] >> http://lists.preshweb.co.uk/mailman/listinfo/dancer-users >> >> > > _______________________________________________ > dancer-users mailing list > [email protected] > http://lists.preshweb.co.uk/mailman/listinfo/dancer-users > >
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