Fill Selects based on selected item from another Select

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I am having difficulty filtering two selects based on an earlier selection of the user. In this case, the user will select the client, and the selects seller and manager should only show the sellers and clients of that selected client. Any tips on how to do it will help a lot. 

<?php
require('login/autenticacaoUsuario.php');
require('login/verificarAcesso.php');
require('../BDconexao/conexao.php');
?>

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                        <li>
                            <a href="#"><i class="fa fa-bar-chart-o fa-fw"></i> Clientes<span class="fa arrow"></span></a>
                            <ul class="nav nav-second-level">
                                <li>
                                    <a href="cadastrar_cliente.php">Cadastrar Cliente</a>
                                </li>
                                <li>
                                    <a href="listar_clientes.php">Lista de Clientes</a>
                                </li>
                            </ul>
                            <!-- /.nav-second-level -->
                        </li>
                         <li>
                            <a href="#"><i class="fa fa-bar-chart-o fa-users"></i> Usuários<span class="fa arrow"></span></a>
                            <ul class="nav nav-second-level">
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                                    <a href="cadastrar_usuario.php">Cadastrar Usuário</a>
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                                    <a href="listar_usuarios.php">Lista de Usuários</a>
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                        </li>
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                                    <a href="cadastrar_item.php">Cadastrar Item</a>
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                                    <a href="lista_itens.php">Lista de itens</a>
                                </li>
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                            <!-- /.nav-second-level -->
                        </li>
                        <li>
                            <a href="#"><i class="fa fa-cogs"></i> Ordem de Serviço<span class="fa arrow"></span></a>
                            <ul class="nav nav-second-level">
                                <li>
                                    <a href="cadastrar_ordem_servico.php">Cadastrar OS</a>
                                </li>
                                <li>
                                    <a href="lista_os.php">Lista de OS's</a>
                                </li>
                            </ul>
                            <!-- /.nav-second-level -->
                        </li>

                         <li>
                                  <a href="gerenciamento.php"><i class="fa fa-gear"></i> Gerenciamento</a>
                                </li>



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        </nav>

        <div id="page-wrapper">
            <div class="row">
                <div class="col-lg-12">

                    <h3 class="page-header">Cadastro de Ordem de Serviço (OS)</h3>


                </div>
                <!-- /.col-lg-12 -->
            </div>
            <!-- /.row -->
                    <div class="row">
                        <div class="col-lg-9">
                        </br>

                                    <form role="form" method="POST" action="Ordem/cadastrar_os.php">



                                          <div class="form-group">
                                            <label>OS Concessionária:</label> 
                                            <input type="text" name="os_conce" class="form-control" value="">

                                        </div>





                                            <p><label>Veículo: </label><span>*</span>
                                                <input type='text' name='veiculo'  class="form-control" value='' id='auto' required="" placeholder="Pesquise o veículo"></p>






                                         <!--trazer todos os clientes-->
                                        <div class="form-group">
                                            <label>Cliente:</label><span> *</span>


                                               <?php

                      $pdo = Conexao::getInstance();

                        $cliente = $pdo->prepare("SELECT * FROM cliente WHERE status='Ativo'");
                          $cliente->execute();

                           if($cliente->rowCount()>=1){         

                        echo '<select name="cliente" id="cliente" class="form-control" required="">';
                            echo '<option value="-">Selecione...</option>';

                                 foreach($cliente->fetchAll() as $res){                            

                                    $id_cliente = $res['id_cliente'];
                                    $nome_cliente = $res['nome_cliente'];                                           
                                   echo '<option data-cliente="'.$id_cliente_select.'" value="'.$id_cliente.'">'.$nome_cliente.'</option>';

                                }

                                echo'</select>';
                              }
                                ?>

                                            </div>

                                        <!--trazer todos os vendedores-->
                                        <div class="form-group">
                                            <label>Vendedor:</label>

                                             <?php

                      $pdo = Conexao::getInstance();

                        $vendedor = $pdo->prepare("SELECT * FROM usuario WHERE tipo_usuario='Vendedor' AND cliente_atuacao=:cliente");
                            $vendedor -> bindParam(':cliente',$id_cliente,PDO::PARAM_INT);

                          $vendedor->execute();

                           if($vendedor->rowCount()>=1){         

                              echo '<select name="vendedor" class="form-control">';
                              echo '<option value="0">Selecione...</option>';

                                 foreach($vendedor->fetchAll() as $res){                            


                                    $nome = $res['nome_funcionario'];                                           

                                   echo '<option value="'.$nome.'">'.$nome.'</option>';

                                }

                                echo'</select>';
                              }
                                ?>

                                        </div>





                                                <div class="form-group">
                                            <label>Gerente 1:</label>

        <?php

                      $pdo = Conexao::getInstance();

                        $gerente = $pdo->prepare("SELECT * FROM usuario WHERE tipo_usuario='Gerente'");

                          $gerente->execute();

                           if($gerente->rowCount()>=1){         

                              echo '<select name="gerente1" class="form-control" >';
                              echo '<option value="0">Selecione...</option>';

                                 foreach($gerente->fetchAll() as $res){                            


                                    $nome = $res['nome_funcionario'];                                           

                                   echo '<option value="'.$nome.'">'.$nome.'</option>';

                                }

                                echo'</select>';
                              }
                                ?>

                                        </div>


                                        <div class="form-group">
                                            <label>Observações:</label> 
                                                <input type="text" name="observacao" class="form-control" value="" placeholder="">
                                        </div>





                                        <button type="submit" class="btn btn-success">Cadastrar</button>
                                        <button type="reset" class="btn btn-warning">Limpar dados</button>
                                        <a href="lista_os.php"><button type="button" class="btn btn-info">Listar Ordens</button></a>

                                    </form>
                                    </br>
                                    </br>



                                    </div>




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    <script src="../vendor/jquery/jquery.min.js"></script>

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    <script src="../data/morris-data.js"></script>

    <!-- Custom Theme JavaScript -->
    <script src="../dist/js/sb-admin-2.js"></script>




<!-- autocomplete jquery-->
<script type="text/javascript" src="http://code.jquery.com/jquery-1.9.1.min.js"></script><scripttype="text/javascript" src="http://code.jquery.com/ui/1.10.1/jquery-ui.min.js"></script><scripttype="text/javascript">
$(function() {

    //autocomplete veiculo
    $("#auto").autocomplete({
        source: "search.php",
        minLength: 1
    });  

      //autocomplete cor
    $("#auto_cor").autocomplete({
        source: "search_cor.php",
        minLength: 1
    });   


       //autocomplete marca
    $("#auto_marca").autocomplete({
        source: "search_marca.php",
        minLength: 1
    });              

});
</script>



</body>

</html>
    
asked by anonymous 15.12.2017 / 17:43

1 answer

0

When the user chooses a select client item you must make an ajax request to the server requesting that the vendors associated with the id of the selected client be returned. For example, create a file called filtar_clientes.php at the root of your site, with the following content: 

<?php

        $pdo = Conexao::getInstance();

        $vendedor = $pdo->prepare("SELECT * FROM usuario WHERE tipo_usuario='Vendedor' AND cliente_atuacao=:cliente");
        $vendedor -> bindParam(':cliente',$_GET['id_cliente'],PDO::PARAM_INT);

        $vendedor->execute();

        if($vendedor->rowCount()>=1){         

            echo '<option value="0">Selecione...</option>';

            foreach($vendedor->fetchAll() as $res){                            


                $nome = $res['nome_funcionario'];                                           

                echo '<option value="'.$nome.'">'.$nome.'</option>';

            }

        }
    ?>

Of course, some includes must be done to work properly.

And then create and link a javascript file at the end of your page (right after joining jquery), with the following content: 

<script>

$( "#cliente" ).change(function() {
  var client_id = $(this).val();
  $.ajax({
    url: '/filtar_clientes.php',
    method: 'get',
    data: {id_cliente: cliente_id},
    success: function(dados){
        //troca conteudo do select com name igual a vendedor com os dados retornado pelo servidor (/filtrar_clientes.php)
        $('[name="vendedor"]').html(dados);
    };
  });
});


</script>

This should resolve.

    
17.12.2017 / 19:59
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