Question

This is my add.tcp
…

<?php

echo $this->Form->create('Group');
echo $this->Form->input('group_id', array('label' => 'ID'));
echo $this->Form->input('group_desc', array('label' => 'Group Description'));
echo $this->Form->end('Save');

?>

Table name: groups
Table fields: group_id, group_desc
PK: group_id

This is my controller
…

class GroupsController extends AppController {
  public $helper = array('Html', 'Form', 'Session');
  public $components = array('Session');

  public function add() {
    if ($this->request->is('post')) {
      if ($this->Group->save($this->request->data)) {
        $this->session.setFlash('');
        $this->redirect(array('action' => 'index'));
      }
    }
  }  
}

When I display this view on the browser, there was nothing for the field group_id but there was for the group_desc, the HTML source for the look like this
…

<form action="/cakephp/index.php/groups/add" id="GroupAddForm" method="post" accept-charset="utf-8" name="GroupAddForm">
    <div style="display:none;">
        <input type="hidden" name="_method" value="POST">
    </div><input type="hidden" name="data[Group][group_id]" id="GroupGroupId">
    <div class="input text">
        <label for="GroupGroupDesc">Group Description</label><input name="data[Group][group_desc]" maxlength="15" type="text" id="GroupGroupDesc">
    </div>
    <div class="submit">
        <input type="submit" value="บันทึก">
    </div>
</form>

Why it was hidden?

Answer 1

CakePHP automagically determines that you do not want a user to manually enter an ID, as such hides it for you.

If you would like to force ID field to be shown, set the type to text:

echo $this->Form->input('group_id', array('type' => 'text', 'label' => 'ID'));