Angular - $http.delete returns success but doesn't works

Question

I have an Angular + PHP application and I'm having problem to delete an customer.

I got no error, actually, the application returns sucecess, but it doesn't delete the customer from my database.

This is my angular controller

    app.controller('consultar_cliente_controller', function($scope, $http){
    $scope.listaDeCliente = [];

    var init = function(){
        $scope.buscar();
    };

    $scope.buscar = function(){
        $http.get('consultar_cliente.php')
             .success(function(data){
                $scope.listaDeCliente = data;
             })
             .error(function(){
                console.error('Erro ao executar o GET do cliente');
             });
    };

    $scope.deletar = function(id){
        $http.delete('remover_cliente.php/' + id)
             .success(function(){
                console.log('Cliente removido com sucesso!');
                $scope.buscar();
             })
             .error(function(){
                console.error('Erro ao remover cliente');
             })
    };

    init();
});

This is my PHP

<?php
  $dbh = new PDO('pgsql:host=localhost;dbname=livraria_glp', 'postgres');
  /*
  * Recuperando todos os detalhes da requisição HTTP do Angular
  */ 
  $postdata = file_get_contents("php://input");
  $request  = json_decode($postdata);
  @$id      = $request->id;

  echo $id;

  $dbh->exec("DELETE FROM PRODUTO WHERE ID = '$id'") or die( $dbh->errorInfo() );

?>

And this is my HTML

<div class="well">
  <div class="container">
      <h2>Dados</h2>
      <div class="form-group">
        <label>Nome</label>
          <input class="form-control" type="text" ng-model="filtroNome" />
      </div>
  </div>
  <div class="container resultado">      
    <table class="table">
      <thead>
        <tr>
          <th>Nome</th>
          <th>CPF</th>
          <th>E-mail</th>
        </tr>
      </thead>
      <tbody>
        <tr ng-repeat="cliente in listaDeCliente | filter : filtroNome">
          <td>{{cliente.nome}}</td>
          <td>{{cliente.cpf}}</td>
          <td>{{cliente.id}}</td>
          <td><button class="btn btn-danger" ng-click="deletar(cliente.id)">Deletar</button></td>
        </tr>
      </tbody>
    </table>
  </div>
  <button class="btn btn-success" onclick="window.location.href='javascript:window.history.go(-1)'">Voltar</button>
</div>

Edit: I've tried this on PHP:

echo "DELETE FROM PRODUTO WHERE ID = '$id'";

And it returned:

DELETE FROM PRODUTO WHERE ID = ''

Why can't the PHP recieve the id?

Try debugging $postdata. A proper debugger would be good but at a minimum, try $postdata = file_get_contents('php://input'); var_dump($postdata); exit; — Phil
– Phil, Commented Jun 11, 2015 at 2:05

Phil · Accepted Answer · 2015-06-11 02:30:48Z

2

Angular doesn't send a request body for DELETE so you're going to have to read id from the URL. You might as well just pass it as a query parameter

$http.delete('remover_cliente.php', {
    params: {id: id}
})

Then read it via $_GET['id'].

<?php
if (!isset($_GET['id'])) {
    exit;
}

$id = $_GET['id'];
$dbh = new PDO('pgsql:host=localhost;dbname=livraria_glp', 'postgres');
$dbh->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

$stmt = $dbh->prepare('DELETE FROM PRODUTO WHERE ID = ?');
$stmt->execute([$id]);

echo $id;

Alternatively (and just in case $_GET doesn't work for DELETE requests), you could try forcing the request message data using

$http.delete('remover_cliente.php', {
    data: {id: id}
})

however I don't know if this is supported and it's certainly not very REST-ful. If it does work, you can continue to use file_get_contents('php://input') and json_decode().

edited Jun 11, 2015 at 2:30

answered Jun 11, 2015 at 2:12

Phil

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3 Comments

Guilherme Lima Pereira Over a year ago

YAY!! Your second solution worked perfectly!! Didn't change my original code, besides the {data: {id: id}}. Thank you!!!

Phil Over a year ago

@guuilp please take note of the SQL-injection free PHP code in the first part

Guilherme Lima Pereira Over a year ago

Ok Phil. My knowledge about SQL-injection is very poor, but I'll study about it and fix my code. If you recommend any material, I'd be very thankful (again) :D

502_Geek · Accepted Answer · 2015-06-11 02:07:22Z

1

Please try to replace this,

$scope.deletar = function(id){
    var postData = {'id' : id};
    $http.delete('remover_cliente.php', postData)
         .success(function(){
            console.log('Cliente removido com sucesso!');
            $scope.buscar();
         })
         .error(function(){
            console.error('Erro ao remover cliente');
         })
};

edited Jun 11, 2015 at 2:07

answered Jun 11, 2015 at 1:39

502_Geek

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5 Comments

Guilherme Lima Pereira Over a year ago

I've tried, but doesn't woked :(, my php still can't recieve the id's value

Guilherme Lima Pereira Over a year ago

Don't worry man! Unfortunately, still didn't work =(. The statement in PHP still DELETE FROM PRODUTO WHERE ID = ''

Phil Over a year ago

@KelvinKyaw OP isn't using any PATH_INFO data so your initial answer should have sufficed.

502_Geek Over a year ago

@Phil yes. But, I can't imagine that why can't get this value from server side.

Guilherme Lima Pereira Over a year ago

Kelvin, tried your updated solution with the postData and still didn't work =(

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