I am using this doc as a reference:
http://book.cakephp.org/2.0/en/models/datasources.html
It says that I must do the following which I did so I am confused by
the results.
Methods that must be implemented
describe($model)
listSources()
At least one of:
create($model, $fields = array(), $values = array())
read($model, $queryData = array())
update($model, $fields = array(), $values = array())
delete($model, $id = null)
On Nov 16, 9:29 am, RhythmicDevil <[email protected]> wrote:
> For reference here is my Datasource file.
>
> <?php
>
> App::uses('HttpSocket', 'Network/Http');
>
> class GtiSource extends DataSource
> {
>
> /**
> * The description of this data source
> *
> * @var string
> */
> public $description = 'Datasource to interact with the GTI API';
>
> /**
> * Instance of CakePHP core HttpSocket class
> *
> * @var HttpSocket
> */
> public $Http = null;
>
> /**
> * A URL encoded JSON string
> * @var String
> */
> public $queryString;
> public $queryData;
>
> /**
> * Loads HttpSocket class
> *
> * @param array $config
> * @param HttpSocket $Http
> */
> public function __construct($config, $Http = null)
> {
> parent::__construct($config);
> if (!$Http)
> {
> $Http = new HttpSocket();
> }
> $this->Http = $Http;
> }
>
> public function describe($model)
> {
> return $this->description;
> }
>
> public function listSources()
> {
> }
>
> /**
> *
> * @param AppModel $model
> * @param array $queryData
> */
> public function create(&$model, $fields = array(), $values =
> array())
> {
> // Set the mode @TODO is this the right mode?
> $queryData['fields']['mode'] = 'insert';
> exit('DONT KNOW HOW TO CREATE A RECORD');
> return $this->request();
> }
>
> /**
> *
> * @param AppModel $model
> * @param array $queryData
> */
> public function read(&$model, $queryData = array())
> {
> // Set the mode
> $queryData['fields']['mode'] = 'read';
> $this->queryData = $queryData;
> $this->model = $model;
>
> return $this->request();
> }
>
> /**
> *
> * @param AppModel $model
> * @param array $queryData
> */
> public function update(&$model, $fields = array(), $values =
> array())
> {
> // Set the mode @TODO is this the right mode?
> $queryData['fields']['mode'] = 'update';
>
> exit('DONT KNOW HOW TO UPDATE A RECORD');
> return $this->request();
> }
>
> /**
> *
> * @param AppModel $model
> * @param array $queryData
> */
> public function delete(&$model, $id = null)
> {
> var_dump(__METHOD__);
> // Deleting not allowed in the GTI API
> $data = array();
> // Decode the data and cast the beeatch to an Array
> $data[$this->model->name] = array('Deleting is not allowed
> through the GTI API');
> return $data;
> }
>
> /**
> * Does the actual request. Creates the URI from the DB config
> vars and the
> * user paramters if any.
> *
> * @param CakeModel $model
> * @return boolean
> */
> public function request()
> {
> /*
> * The GTI API requires a key. This is set in the dbConfig
> */
> if (empty($this->config['key']))
> {
> return false; // @TODO throw exception instead.
> }
> $this->queryData['fields']['key'] = $this->config['key'];
>
> /*
> * If the request has not specified a mode then the default is
> "read"
> */
> if (empty($this->queryData['fields']['mode']))
> {
> $this->queryData['fields']['mode'] = 'read';
> }
>
> /*
> * If the request has not specified a cache setting then use
> the default
> * from dbConfig
> */
> if (empty($this->queryData['fields']['cache']))
> {
> $this->queryData['fields']['cache'] = $this->config['cache'];
>
> }
>
> /**
> * Create the full URI include the query string because I dont
> know how
> * to get Cake's HttpSocket to accept it any other way. This
> works for now
> * but should be reviewed at some point.
> */
> $uri = $this->config['url'] . ':' . $this->config['port'] .
> '/' . urlencode(json_encode($this->queryData['fields']));
> /**
> * New Socket
> */
> $HttpSocket = new HttpSocket();
> /*
> * Get the results
> */
> $results = $HttpSocket->get($uri);
> /**
> * If the returned HTTP status code is anything other than 200
> then
> * something went wrong.
> */
> if ($results->code == '200')
> {
> $data = array();
> // Decode the data and cast the beeatch to an Array
> $data[$this->model->name] = (Array)
> json_decode($results['body']);
> return $data;
> }
> else
> {
> // @TODO Where is error data supposed to go in the Model?
> $model->data = json_decode($results);
> return false;
> }
> }
>
> public function calculate(&$model, $func, $params = array())
> {
> //var_dump(__METHOD__);
> //var_dump($model, $func, $params);
> return 1;
> }
>
> }
>
> ?>
>
> On Nov 16, 9:24 am, RhythmicDevil <[email protected]> wrote:
>
>
>
>
>
>
>
> > I am writing a custom datasource. I was implementing the delete action
> > in the datasource and ran into a problem. I expected that when I call
> > Model::delete($id, false); it would execute the Datasource::delete()
> > method. But that does not happen. First a method called calculate() is
> > executed and then Datasource::read() is executed. I dont know why.
>
> > 1. So why does the calculate() method get called and how do I prevent
> > that as it makes no sense my implementation.
>
> > 2. Why does the read() method get called before delete() and how do I
> > prevent that?
>
> > 3. Is there a document somewhere that lists the methods called in
> > order of execution for CRUD operations?
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