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Diffstat (limited to 'user_guide_src/source/libraries/form_validation.rst')
| -rw-r--r-- | user_guide_src/source/libraries/form_validation.rst | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/user_guide_src/source/libraries/form_validation.rst b/user_guide_src/source/libraries/form_validation.rst index 2ae56d29a..aae9e3b89 100644 --- a/user_guide_src/source/libraries/form_validation.rst +++ b/user_guide_src/source/libraries/form_validation.rst @@ -505,11 +505,40 @@ function:: 'required', function($value) { - // Check $value and return TRUE/FALSE + // Check $value } ) ); +Of course, since a Callable rule by itself is not a string, it isn't +a rule name either. That is a problem when you want to set error messages +for them. In order to get around that problem, you can put such rules as +the second element of an array, with the first one being the rule name:: + + $this->form_validation->set_rules( + 'username', 'Username', + array( + 'required', + array('username_callable', array($this->users_model, 'valid_username')) + ) + ); + +Anonymous function (PHP 5.3+) version:: + + $this->form_validation->set_rules( + 'username', 'Username', + array( + 'required', + array( + 'username_callable', + function($str) + { + // Check validity of $str and return TRUE or FALSE + } + ) + ) + ); + .. _setting-error-messages: Setting Error Messages |