diff options
Diffstat (limited to 'user_guide/libraries/form_validation.html')
| -rw-r--r-- | user_guide/libraries/form_validation.html | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/user_guide/libraries/form_validation.html b/user_guide/libraries/form_validation.html index 54908d41d..e68765c35 100644 --- a/user_guide/libraries/form_validation.html +++ b/user_guide/libraries/form_validation.html @@ -390,10 +390,10 @@ $this->form_validation->set_rules($config); <p>CodeIgniter lets you pipe multiple rules together. Let's try it. Change your rules in the third parameter of rule setting function, like this:</p> <code> -$this->form_validation->set_rules('username', 'Username', 'required|min_length[5]|max_length[12]');<br /> +$this->form_validation->set_rules('username', 'Username', 'required|min_length[5]|max_length[12]|is_unique[users.username]');<br /> $this->form_validation->set_rules('password', 'Password', 'required|matches[passconf]');<br /> $this->form_validation->set_rules('passconf', 'Password Confirmation', 'required');<br /> -$this->form_validation->set_rules('email', 'Email', 'required|valid_email');<br /> +$this->form_validation->set_rules('email', 'Email', 'required|valid_email|is_unique[users.email]');<br /> </code> <p>The above code sets the following rules:</p> @@ -516,7 +516,7 @@ create a callback function that does that. Let's create a example of this.</p> class Form extends CI_Controller { - function index() + public function index() { $this->load->helper(array('form', 'url')); @@ -525,7 +525,7 @@ class Form extends CI_Controller { $this->form_validation->set_rules('username', 'Username', 'callback_username_check'); $this->form_validation->set_rules('password', 'Password', 'required'); $this->form_validation->set_rules('passconf', 'Password Confirmation', 'required'); - $this->form_validation->set_rules('email', 'Email', 'required'); + $this->form_validation->set_rules('email', 'Email', 'required|is_unique[users.email]'); if ($this->form_validation->run() == FALSE) { @@ -537,7 +537,7 @@ class Form extends CI_Controller { } } - function username_check($str) + public function username_check($str) { if ($str == 'test') { @@ -947,6 +947,13 @@ POST array:</p> </tr> <tr> + <td class="td"><strong>is_unique</strong></td> + <td class="td">Yes</td> + <td class="td">Returns FALSE if the form element is not unique to the table and field name in the parameter.</td> + <td class="td">is_unique[table.field]</td> + </tr> + + <tr> <td class="td"><strong>min_length</strong></td> <td class="td">Yes</td> <td class="td">Returns FALSE if the form element is shorter then the parameter value.</td> |