diff options
Diffstat (limited to 'user_guide_src')
-rw-r--r-- | user_guide_src/source/libraries/form_validation.rst | 183 |
1 files changed, 87 insertions, 96 deletions
diff --git a/user_guide_src/source/libraries/form_validation.rst b/user_guide_src/source/libraries/form_validation.rst index 7478ca0ef..acf1e5619 100644 --- a/user_guide_src/source/libraries/form_validation.rst +++ b/user_guide_src/source/libraries/form_validation.rst @@ -139,7 +139,6 @@ this code and save it to your application/controllers/ folder:: } } } - ?> Try it! ======= @@ -240,7 +239,6 @@ Your controller should now look like this:: } } } - ?> Now submit the form with the fields blank and you should see the error messages. If you submit the form with all the fields populated you'll @@ -436,7 +434,7 @@ Here's how your controller should now look:: { if ($str == 'test') { - $this->form_validation->set_message('username_check', 'The %s field can not be the word "test"'); + $this->form_validation->set_message('username_check', 'The {field} field can not be the word "test"'); return FALSE; } else @@ -446,7 +444,6 @@ Here's how your controller should now look:: } } - ?> Reload your form and submit it with the word "test" as the username. You can see that the form field data was passed to your callback function @@ -469,7 +466,7 @@ Setting Error Messages ====================== All of the native error messages are located in the following language -file: language/english/form_validation_lang.php +file: /system/language/english/form_validation_lang.php To set your own custom message you can either edit that file, or use the following function:: @@ -479,29 +476,23 @@ following function:: Where rule corresponds to the name of a particular rule, and Error Message is the text you would like displayed. -If you include %s in your error string, it will be replaced with the -"human" name you used for your field when you set your rules. +If you'd like to include a field's "human" name, or the optional +parameter some rules allow for (such as max_length), you can add the +**{field}** and **{param}** tags to your message, respectively. -In the "callback" example above, the error message was set by passing -the name of the function:: + $this->form_validation->set_message('min_length', '{field} must have at least {param} characters.'); - $this->form_validation->set_message('username_check') - -If you are using an error message that can accept two $s in your error string, -such as: -:: - - $this->form_validation->set_message('min_length', 'The $s field must contain at least $s characters.'); - -Then you can also use %1$s and %2$s: -:: +On a field with the human name Username and a rule of min_length[5], an +error would display: "Username must have at least 5 characters." - $this->form_validation->set_message('min_length', 'This field must contain at least %2$s characters.'); +.. note:: The old method of using **%s** in your error messages will +still work, however it will override the tags above. You should use +one or the other. -You can also override any error message found in the language file. For -example, to change the message for the "required" rule you will do this:: +In the callback rule example above, the error message was set by passing +the name of the function (without the "callback_" prefix):: - $this->form_validation->set_message('required', 'Your custom message here'); + $this->form_validation->set_message('username_check') .. _translating-field-names: @@ -613,7 +604,7 @@ In this case, you can specify the array to be validated:: $this->form_validation->set_data($data); -Creating validation rules, running the validation and retrieving error messages works the +Creating validation rules, running the validation, and retrieving error messages works the same whether you are validating ``$_POST`` data or an array. **Important Note:** If you want to validate more than one array during a single execution, then you should @@ -678,56 +669,56 @@ rules. We've arbitrarily called these two rules "signup" and "email". You can name your rules anything you want:: $config = array( - 'signup' => array( - array( - 'field' => 'username', - 'label' => 'Username', - 'rules' => 'required' - ), - array( - 'field' => 'password', - 'label' => 'Password', - 'rules' => 'required' - ), - array( - 'field' => 'passconf', - 'label' => 'PasswordConfirmation', - 'rules' => 'required' - ), - array( - 'field' => 'email', - 'label' => 'Email', - 'rules' => 'required' - ) - ), - 'email' => array( - array( - 'field' => 'emailaddress', - 'label' => 'EmailAddress', - 'rules' => 'required|valid_email' - ), - array( - 'field' => 'name', - 'label' => 'Name', - 'rules' => 'required|alpha' - ), - array( - 'field' => 'title', - 'label' => 'Title', - 'rules' => 'required' - ), - array( - 'field' => 'message', - 'label' => 'MessageBody', - 'rules' => 'required' - ) - ) - ); + 'signup' => array( + array( + 'field' => 'username', + 'label' => 'Username', + 'rules' => 'required' + ), + array( + 'field' => 'password', + 'label' => 'Password', + 'rules' => 'required' + ), + array( + 'field' => 'passconf', + 'label' => 'Password Confirmation', + 'rules' => 'required' + ), + array( + 'field' => 'email', + 'label' => 'Email', + 'rules' => 'required' + ) + ), + 'email' => array( + array( + 'field' => 'emailaddress', + 'label' => 'EmailAddress', + 'rules' => 'required|valid_email' + ), + array( + 'field' => 'name', + 'label' => 'Name', + 'rules' => 'required|alpha' + ), + array( + 'field' => 'title', + 'label' => 'Title', + 'rules' => 'required' + ), + array( + 'field' => 'message', + 'label' => 'MessageBody', + 'rules' => 'required' + ) + ) + ); Calling a Specific Rule Group ============================= -In order to call a specific group you will pass its name to the ``run()`` +In order to call a specific group, you will pass its name to the ``run()`` method. For example, to call the signup rule you will do this:: if ($this->form_validation->run('signup') == FALSE) @@ -770,29 +761,29 @@ In your validation config file, you will name your rule group member/signup:: $config = array( - 'member/signup' => array( - array( - 'field' => 'username', - 'label' => 'Username', - 'rules' => 'required' - ), - array( - 'field' => 'password', - 'label' => 'Password', - 'rules' => 'required' - ), - array( - 'field' => 'passconf', - 'label' => 'PasswordConfirmation', - 'rules' => 'required' - ), - array( - 'field' => 'email', - 'label' => 'Email', - 'rules' => 'required' - ) - ) - ); + 'member/signup' => array( + array( + 'field' => 'username', + 'label' => 'Username', + 'rules' => 'required' + ), + array( + 'field' => 'password', + 'label' => 'Password', + 'rules' => 'required' + ), + array( + 'field' => 'passconf', + 'label' => 'PasswordConfirmation', + 'rules' => 'required' + ), + array( + 'field' => 'email', + 'label' => 'Email', + 'rules' => 'required' + ) + ) + ); When a rule group is named identically to a controller class/function it will be used automatically when the run() function is invoked from that @@ -928,8 +919,8 @@ Name Parameter Description **encode_php_tags** No Converts PHP tags to entities. ==================== ========= =================================================================================================== -.. note:: You can also use any native PHP functions that permit one - parameter, like trim, htmlspecialchars, urldecode, etc. +.. note:: You can also use any native PHP functions that permits one + parameter, like ``trim()``, ``htmlspecialchars()``, ``urldecode()``, etc. .. _function-reference: @@ -1088,4 +1079,4 @@ This function is identical to the **set_checkbox()** function above. :: <input type="radio" name="myradio" value="1" <?php echo set_radio('myradio', '1', TRUE); ?> /> - <input type="radio" name="myradio" value="2" <?php echo set_radio('myradio', '2'); ?> />
\ No newline at end of file + <input type="radio" name="myradio" value="2" <?php echo set_radio('myradio', '2'); ?> /> |