Html + Javascript + Ruby

Bi1 · 18 February 2011 13:51

Hi,

I'm with the following code in html + javascript in my ruby application:

            // copiando as opcoes das sub-tarefas modificando o id
            $('[name=subtarefas-options] select').attr('id', tarefa);
            $('#tarefas').append('Número de subtarefas:'
+$('[name=subtarefas-options]').html() + '<br /><div
name="div-subtarefas" id="div-subtarefas"></div><br />');

            // criacao dos inputs das subtarefas
            $('[name=options_subtarefas]').change(function(){
            // recuperar a primeira div
              var first_subtarefa = $('#' + this.id + ' ~
[name=div-subtarefas]').first();
              first_subtarefa.html('');
              for (var sub_tarefa_id = 0; sub_tarefa_id < $(this).val();
sub_tarefa_id++) {
                var t = parseInt(this.id) + 1;
                first_subtarefa.append('    Nome da
subtarefa '+ (sub_tarefa_id+1) + ' para a tarefa ' + (t) +
                ': ' +
                <%#*'<input type="text" id="tarefas[' + this.id +
'][sub][' + sub_tarefa_id + ']" name="tarefas[' + this.id + '][sub][' +
sub_tarefa_id + ']" /><br />');%>
                '<input type="text" id="tarefas[' + this.id + '][sub]['
+ sub_tarefa_id + ']" name="tarefas[' + this.id + '][sub][' +
sub_tarefa_id + ']" /><br />');
              }
            });
          }
        });
      });
    </script>

How can I take the array witch name is tarefas['+ tarefa +'][input] in
my controller using params?

···

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Tomasz_blazeroot · 18 February 2011 15:02

Hi,

You can use:

params["+ tarefa +".to_sym][:input]

i guess.

···

2011/2/18 Bla ... <bianca.stephani@gmail.com>:

Hi,

I'm with the following code in html + javascript in my ruby application:

<script type="text/javascript">
$(document).ready(function(){
$('#numero_tarefas').change(function(){
$('#tarefas').html('');
for (var tarefa = 0; tarefa < $(this).val(); tarefa++) {
$('#tarefas').append('Nome da tarefa ' + (tarefa + 1) + ': '
+ '<input type="text" id="tarefas['+ tarefa +'][input]" name="tarefas['+
tarefa +'][input]" /> ');
       // copiando as opcoes das sub\-tarefas modificando o id
       $$&#39;\[name=subtarefas\-options\] select&#39;$\.attr$&#39;id&#39;, tarefa$;
       $$&#39;\#tarefas&#39;$\.append$&#39;Número de subtarefas:&#39;
+$('[name=subtarefas-options]').html() + '<br /><div
name="div-subtarefas" id="div-subtarefas"></div><br />');
       // criacao dos inputs das subtarefas
       $\(&#39;\[name=options\_subtarefas\]&#39;$\.change$function\($\{
       // recuperar a primeira div
         var first\_subtarefa = $\(&#39;\#&#39; \+ this\.id \+ &#39; \~
[name=div-subtarefas]').first();
first_subtarefa.html('');
for (var sub_tarefa_id = 0; sub_tarefa_id < $(this).val();
sub_tarefa_id++) {
var t = parseInt(this.id) + 1;
first_subtarefa.append('    Nome da
subtarefa '+ (sub_tarefa_id+1) + ' para a tarefa ' + (t) +
': ' +
<%#*'<input type="text" id="tarefas[' + this.id +
'][sub][' + sub_tarefa_id + ']" name="tarefas[' + this.id + '][sub][' +
sub_tarefa_id + ']" /><br />');%>
'<input type="text" id="tarefas[' + this.id + '][sub]['
+ sub_tarefa_id + ']" name="tarefas[' + this.id + '][sub][' +
sub_tarefa_id + ']" /><br />');
}
});
}
});
});
</script>

How can I take the array witch name is tarefas['+ tarefa +'][input] in
my controller using params?

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Brian_Candler · 19 February 2011 09:13

Bla ... wrote in post #982469:

How can I take the array witch name is tarefas['+ tarefa +'][input] in
my controller using params?

You can use <input type="hidden"> to put any extra variables you want
into the FORM, then you can POST them, then you'll usually get a params
object in your Ruby controller.

But since you don't show your full HTML I can't be sure you're building
a FORM, and you don't show any ruby code nor say which ruby framework
you're using, it's hard to be more specific.

It would be much better if you could build a simple, minimal and
complete example which demonstrates your problem.

···

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Bi1 · 21 February 2011 12:33

params["+ tarefa +".to_sym][:input] doesn't works.

···

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Bi1 · 21 February 2011 12:46

nether params[:tarefas]

···

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Bi1 · 21 February 2011 14:22

getting this:

[4;36;1mSQL (1.3ms)[0m [0;1mINSERT INTO "nome_tarefas_fluxos"
("fluxo_id", "nome_tarefa", "numero_subtarefas") VALUES(110,
E'0sub0ccccccccccinputcccccccccc', NULL) RETURNING "id"[0m

in this:

Parameters: {"x"=>"12", "numero_tarefas"=>"1", "y"=>"11",
"action"=>"create",
"authenticity_token"=>"id8C+Wlqc90ryf4479bFISkyCmLhgxr+h8n7A8osLlY=",
"tarefas"=>{"0"=>{"sub"=>{"0"=>"cccccccccc"}, "input"=>"cccccccccc"}},
"options_subtarefas"=>"Selecione quantidades...",
"controller"=>"fluxos", "fluxo"=>{"nome"=>"ccccccccccc"}}
  [4;35;1mPermissao Load (2.5ms)[0m [0mSELECT * FROM "permissoes"
WHERE (usuario_id = 2 AND perfil = E'Avançado' AND projeto_id = 0) [0m
  [4;36;1mSQL (0.3ms)[0m [0;1mBEGIN[0m
  [4;35;1mSQL (1.2ms)[0m [0mINSERT INTO "fluxos" ("created_at",
"nome", "numero_tarefas", "updated_at", "numero_subtarefas")
VALUES('2011-02-21 11:20:06.285885', E'ccccccccccc', 1, '2011-02-21
11:20:06.285885', NULL) RETURNING "id"[0m
  [4;36;1mSQL (7.1ms)[0m [0;1mCOMMIT[0m
  [4;35;1mSQL (0.3ms)[0m [0mBEGIN[0m
  [4;36;1mSQL (1.3ms)[0m [0;1mINSERT INTO "nome_tarefas_fluxos"
("fluxo_id", "nome_tarefa", "numero_subtarefas") VALUES(110,
E'0sub0ccccccccccinputcccccccccc', NULL) RETURNING "id"[0m
  [4;35;1mSQL (11.0ms)[0m [0mCOMMIT[0m
Redirected to http://localhost:3001/fluxos
Completed in 61ms (DB: 25) | 302 Found [http://localhost/fluxos]

···

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Bi1 · 21 February 2011 14:48

i get this:

You have a nil object when you didn't expect it!
You might have expected an instance of ActiveRecord::Base.
The error occurred while evaluating nil.[]

···

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Tomasz_blazeroot · 21 February 2011 13:18

What parameters do You get in your server log?

There should be something like:

Started POST "/session/" for 127.0.0.1 at Mon Feb 21 09:46:30 +0100 2011
Processing by SessionController#create as HTML
Parameters: {"name"=>"admin", "commit"=>"logowanie",
"authenticity_token"=>"[FILTERED]", "utf8"=>"✓",
"password"=>"[FILTERED]"}

···

2011/2/21 Bla ... <bianca.stephani@gmail.com>:

nether params[:tarefas]

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Tomasz_blazeroot · 21 February 2011 14:40

So, You have array 'terefas'. You can get that two values "cccccccccc" this way:

params[:terefas][0][:sub][0]

and

params[:terefas][0][:input]

as You can see it there:

tarefas"=>{"0"=>{"sub"=>{"0"=>"cccccccccc"}, "input"=>"cccccccccc"}}

···

2011/2/21 Bla ... <bianca.stephani@gmail.com>:

getting this:

[4;36;1mSQL (1.3ms)[0m [0;1mINSERT INTO "nome_tarefas_fluxos"
("fluxo_id", "nome_tarefa", "numero_subtarefas") VALUES(110,
E'0sub0ccccccccccinputcccccccccc', NULL) RETURNING "id"[0m

in this:

Parameters: {"x"=>"12", "numero_tarefas"=>"1", "y"=>"11",
"action"=>"create",
"authenticity_token"=>"id8C+Wlqc90ryf4479bFISkyCmLhgxr+h8n7A8osLlY=",
"tarefas"=>{"0"=>{"sub"=>{"0"=>"cccccccccc"}, "input"=>"cccccccccc"}},
"options_subtarefas"=>"Selecione quantidades...",
"controller"=>"fluxos", "fluxo"=>{"nome"=>"ccccccccccc"}}
[4;35;1mPermissao Load (2.5ms)[0m [0mSELECT * FROM "permissoes"
WHERE (usuario_id = 2 AND perfil = E'Avançado' AND projeto_id = 0) [0m
[4;36;1mSQL (0.3ms)[0m [0;1mBEGIN[0m
[4;35;1mSQL (1.2ms)[0m [0mINSERT INTO "fluxos" ("created_at",
"nome", "numero_tarefas", "updated_at", "numero_subtarefas")
VALUES('2011-02-21 11:20:06.285885', E'ccccccccccc', 1, '2011-02-21
11:20:06.285885', NULL) RETURNING "id"[0m
[4;36;1mSQL (7.1ms)[0m [0;1mCOMMIT[0m
[4;35;1mSQL (0.3ms)[0m [0mBEGIN[0m
[4;36;1mSQL (1.3ms)[0m [0;1mINSERT INTO "nome_tarefas_fluxos"
("fluxo_id", "nome_tarefa", "numero_subtarefas") VALUES(110,
E'0sub0ccccccccccinputcccccccccc', NULL) RETURNING "id"[0m
[4;35;1mSQL (11.0ms)[0m [0mCOMMIT[0m
Redirected to http://localhost:3001/fluxos
Completed in 61ms (DB: 25) | 302 Found [http://localhost/fluxos\]

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Tomasz_blazeroot · 21 February 2011 14:58

Paste here code where You're trying to get that value, please.

···

2011/2/21 Bla ... <bianca.stephani@gmail.com>:

i get this:

You have a nil object when you didn't expect it!
You might have expected an instance of ActiveRecord::Base.
The error occurred while evaluating nil.

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Josh_Cheek · 21 February 2011 15:01

If this doesn't work, try

params["tarefas"]["0"]["sub"]["0"]
and
params["tarefas"]["0"]["input"]

···

On Mon, Feb 21, 2011 at 8:40 AM, blazeroot <blazeroot@gmail.com> wrote:

So, You have array 'terefas'. You can get that two values "cccccccccc" this
way:

params[:terefas][0][:sub][0]

and

params[:terefas][0][:input]

as You can see it there:

tarefas"=>{"0"=>{"sub"=>{"0"=>"cccccccccc"}, "input"=>"cccccccccc"}}

Bi1 · 22 February 2011 13:40

params["tarefas"]["0"]["input"] works perfectly...

now... i'm whit a while to take all the names... how can I take the
number of "subtarefas" knowing that the html is like this:

<select id="numero_tarefas" name="numero_tarefas">
              <option>Selecione quantidades...</option>
              <option value="1">1</option>
              <option value="2">2</option>
              <option value="3">3</option>
              <option value="4">4</option>
              <option value="5">5</option>
              <option value="6">6</option>
              <option value="7">7</option>
              <option value="8">8</option>
              <option value="9">9</option>
              <option value="10">10</option>
              <option value="11">11</option>
              <option value="12">12</option>
              <option value="13">13</option>
              <option value="14">14</option>
          </select>
    <div id='tarefas'></div>

        <div name="subtarefas-options" style="display:none;">
         <select id="options_subtarefas" name="options_subtarefas">
             <option>Selecione quantidades...</option>
             <option value="1">1</option>
             <option value="2">2</option>
             <option value="3">3</option>
             <option value="4">4</option>
             <option value="5">5</option>
             <option value="6">6</option>
             <option value="7">7</option>
         </select>
        </div>

I want to take the number selected in "options_subtarefas" for each
"tarefa" that I toke the "input".

···

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