Problemm with REST Api Validation - php

Question

Hello i am building a REST API with CodeIgniter. The problemm is that i have set the validation rules but the code does not recognise them. I am using https://github.com/chriskacerguis/codeigniter-restserver.
The method put:https://github.com/alexmarton/RControl/blob/master/application/controllers/api.php and this example works. But in my case it does not.
public function properties_put(){
$property_to_update = $this->uri->segment(3);
$this->load->model('Model_properties');
$this->load->library('form_validation');
if (isset($property_to_update)) {
if (is_numeric($property_to_update)) {
$property_exist = $this->Model_properties->get_by(array('ID'=> $property_to_update));
if ($property_exist) {
$data = remove_unknown_fields($this->put(), $this->form_validation->get_field_names('property_put'));
$this->form_validation->set_data($data);
$debugdata = $this->form_validation->get_field_names('property_put');
foreach ($debugdata as $key => $value) {
log_message('debug', "Found validation data (".($key+1).")" . $value);
}
foreach ($data as $k => $val) {
log_message('debug', "Unknown field data (".($k+1).")" . $val);
}
if ($this->form_validation->run('property_put') != false) {
log_message('debug', "Passed validation data ");
}else{
$this->response(array("status" => "failure", "status_code" => "400", "response" => $this->form_validation->get_errors_as_array() ), REST_Controller::HTTP_BAD_REQUEST);
log_message('debug', "Error in validation data ");
}
} else {
$this->response(array("status" => "failure" , "status_code" => "404" , "message" => "Not Found", "response"=>"We couldn't find a property with the specified :id"), REST_Controller::HTTP_NOT_FOUND);
}
}
} else {
$this->response(array("status" => "failure" , "status_code" => "422" , "message" => "Unprocessable Entity", "response"=>"You have to specify the :id or the :name of the property that you would like to edit/update"), REST_Controller::HTTP_UNPROCESSABLE_ENTITY);
}
}
application/form_validation:
$config = array(
'price_post' => array(
array( 'field' => 'property_id', 'label' => 'Property id', 'rules' => 'trim|required' ),
array( 'field' => '_from', 'label' => 'Timeframe from', 'rules' => 'trim|required' ),
array( 'field' => '_to', 'label' => 'Timeframe to', 'rules' => 'trim|required' ),
array( 'field' => 'price', 'label' => 'Price', 'rules' => 'trim|required|integer|min_length[2]|is_natural_no_zero' ),
),
'availability_post' => array(
array( 'field' => 'property_id', 'label' => 'Property id', 'rules' => 'trim|required' ),
array( 'field' => '_from', 'label' => 'Timeframe from', 'rules' => 'trim|required' ),
array( 'field' => '_to', 'label' => 'Timeframe to', 'rules' => 'trim|required' ),
array( 'field' => 'free', 'label' => 'Is it free or not', 'rules' => 'trim|required|integer|numeric' )
),
'image_post' => array(
array( 'field' => 'property_id', 'label' => 'Property id', 'rules' => 'trim|required' ),
array( 'field' => 'url', 'label' => 'Url', 'rules' => 'trim|required|valid_url|prep_url' ),
array( 'field' => 'sort_order', 'label' => 'Sort Order', 'rules' => 'trim|required' )
),
'property_put' => array(
array( 'field' => 'name', 'label' => 'Property Name', 'rules' => 'trim|required' ),
array( 'field' => 'village', 'label' => 'Property Village', 'rules' => 'trim|required' ),
array( 'field' => 'town', 'label' => 'Property Town', 'rules' => 'trim|required' ),
array( 'field' => 'province', 'label' => 'Property Province', 'rules' => 'trim|required' ),
array( 'field' => 'region', 'label' => 'Property Region', 'rules' => 'trim|required' ),
array( 'field' => 'type', 'label' => 'Property Type', 'rules' => 'trim|required' )
)
);
application/helpers/my_api_helper:
function remove_unknown_fields($form_fields, $expected_fields){
$new_data = array();
foreach ($form_fields as $key => $value) {
if ($value != "" && in_array($key, array_values($expected_fields))) {
$new_data[$key] = $value;
}
}
return $new_data;
}
application/libraries/MY_Form_validation:
class MY_Form_validation extends CI_Form_validation {
function __construct($rules = array()) {
parent::__construct($rules);
$this->ci =& get_instance();
}
public function get_errors_as_array() {
return $this->_error_array;
}
public function get_config_rules() {
return $this->_config_rules;
}
public function get_field_names($form) {
$field_names = array();
$rules = $this->get_config_rules();
$rules = $rules[$form];
foreach ($rules as $index => $info) {
$field_names[] = $info['field'];
}
return $field_names;
}
}
The debug info:
DEBUG - 2016-05-31 18:34:25 --> Found validation data (1)name
DEBUG - 2016-05-31 18:34:25 --> Found validation data (2)village
DEBUG - 2016-05-31 18:34:25 --> Found validation data (3)town
DEBUG - 2016-05-31 18:34:25 --> Found validation data (4)province
DEBUG - 2016-05-31 18:34:25 --> Found validation data (5)region
DEBUG - 2016-05-31 18:34:25 --> Found validation data (6)type
DEBUG - 2016-05-31 18:34:25 --> Unable to find validation rules
and still it does not display errors when i do not post data. Anyone can help me understand what is going on?

Answer 1

What you have to do is this:
Modify the property_put method like this:
public function properties_put(){
$property_to_update = $this->uri->segment(3);
$this->load->model('Model_properties');
$this->load->library('form_validation');
if (isset($property_to_update)) {
if (is_numeric($property_to_update)) {
$property_exist = $this->Model_properties->get_by(array('ID'=> $property_to_update));
if ($property_exist) {
$property = $this->Model_properties->update_by('primary_field_key', $property_to_update, array(
'your_field_1' => $this->put('field_1'),
'your_field_2' => $this->put('field_2')
));
if($property){
//display correct response
} else {
//display wrong response
}
} else {
$this->response(array("status" => "failure" , "status_code" => "404" , "message" => "Not Found", "response"=>"We couldn't find a property with the specified :id"), REST_Controller::HTTP_NOT_FOUND);
}
}
} else {
$this->response(array("status" => "failure" , "status_code" => "422" , "message" => "Unprocessable Entity", "response"=>"You have to specify the :id or the :name of the property that you would like to edit/update"), REST_Controller::HTTP_UNPROCESSABLE_ENTITY);
}
}
In order for the above to work put data must have the following:
Header: Content-type: application/json
If you are using Postman you have to use raw as JSON like this
{
"field_1":"value 1",
"field_2":"value 2"
}
Hope it helps!!!