php - CakePHP maintain ID even when changing views -


how maintain passed id of form form? instance have http://192.168.6.253/computers/brands/table/4 displays records brands belongsto computers condition computer_id=4. have add() directs me http://192.168.6.253/computers/brands/add.

my problem want retain computer_id=4 when add new brand save brand.computer_id in db. want http://192.168.6.253/computers/brands/add/4 also.

here how call add() in view

echo $this->html->link('add brands here', array(         'controller' => 'brands',         'action' => 'add')) );

here how call table brand in computers view

echo $this->html->link('p',array('action' => '../brands/table', $computer['computer']['id']));

and brand add() , table() controller

public function table($id = null){             if (!$id) {                 throw new notfoundexception(__('invalid post'));             }              $this->paginate = array(             'conditions' => array('brand.computer_id' => $id),             'limit' => 10             );             $data = $this->paginate('brand');             $this->set('brands', $data);         }          public function add() {              if ($this->request->is('post')) {                 $this->brand->create();                 if ($this->brand->save($this->request->data)) {                     $this->session->setflash(__('your post has been saved.'));                     $this->redirect(array('action' => 'index'));                 } else {                     $this->session->setflash(__('unable add post.'));                 }             }         } 

echo $this->html->link('add brands here'     , array(       'controller' => 'brands'       ,  'action' => 'add'       , 4 // or whatever variable, maybe $computer['computer']['id'] ?     ) );

... should trick.

it's snippet used make other link. echo $this->html->link('p',array('action' => '../brands/table', $computer['computer']['id']));

the key point remember in making numerical "ids" @ end, add non-indexed item array. cakephp tack 'em on end.

of course, i'll have warn adding "4" @ end doesn't make sense rest perspective. maybe you're better off using named parameters, this...

echo $this->html->link('add brands here'     , array(       'controller' => 'brands'       ,  'action' => 'add'       ,  'computer_id' => 4 // or whatever variable, maybe $computer['computer']['id'] ?     ) );

... or query string params...

echo $this->html->link('add brands here'     , array(       'controller' => 'brands'       ,  'action' => 'add'       ,  '?' => array('computer_id' => 4) // or whatever variable, maybe $computer['computer']['id'] ?     ) );

take read more in-depth @ http://book.cakephp.org/2.0/en/development/routing.html


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