Codeigniter Model Error Handling
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Codeigniter Query Error Handling
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Codeigniter Error Handling Example
them; it only takes a minute: Sign up CodeIgniter - how to catch DB errors? up vote 36 down vote favorite 6 Is there a way to make CI throw an exception when it encounters a DB error instead of displaying a message like: A Database Error Occurred Error Number: 1054 Unknown column 'foo' in 'where clause' SELECT * codeigniter mysql error handling FROM (`FooBar`) WHERE `foo` = '1' NOTE: I only want this to happen in one controller. In the other controllers, I'm happy for it to display the DB error messages. php codeigniter share|improve this question edited Oct 20 '11 at 23:29 asked Oct 20 '11 at 23:22 StackOverflowNewbie 9,96467186337 add a comment| 7 Answers 7 active oldest votes up vote 34 down vote accepted Try these CI functions $this->db->_error_message(); (mysql_error equivalent) $this->db->_error_number(); (mysql_errno equivalent) share|improve this answer edited Oct 21 '11 at 4:22 answered Oct 21 '11 at 4:17 Oskenso Kashi 51147 3 And when the queries are dinamically created, $this->db->last_query() useful too. –uzsolt Oct 21 '11 at 15:17 5 How do these prevent the messages from displaying? –StackOverflowNewbie Oct 21 '11 at 21:36 7 You must turn debug off for database in config/database.php -> $db['default']['db_debug'] = FALSE; –decebal Dec 12 '12 at 12:47 8 Why is not possible to use Exception instead :-( ? –Thomas Decaux Mar 8 '13 at 11:39 16 These methods have been removed in CodeIgniter
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Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges codeigniter active record error handling Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a http://stackoverflow.com/questions/7843406/codeigniter-how-to-catch-db-errors minute: Sign up How to catch DB errors in CodeIgniter PHP up vote 5 down vote favorite 1 I am new to CodeIgniter, PHP and MySQL. I want to handle the DB generated errors. From one of the post in Stackoverflow, I knew that by following statement one can catch the error. $this->db->_error_message(); But I cannot figure out the exact syntax of http://stackoverflow.com/questions/17923382/how-to-catch-db-errors-in-codeigniter-php using that. Suppose I want to update the records of table named "table_name" by the following statement: $array['rank']="8"; $array['class']="XII"; $this->db->where('roll_no',$roll_no); $this->db->update("table_name", $array); Here in the above code I want to catch the DB error whenever any DB level violation occurs i.e. either field name is not valid or some unique constraint violation occurs. If anyone helps me to fix that I would be really grateful. Thank you. php mysql codeigniter share|improve this question asked Jul 29 '13 at 11:56 Joy 66741730 Have you tried try..catch block? Catch(Exception $e) { echo $e->getMessage(); } –timenomad Jul 29 '13 at 12:00 add a comment| 2 Answers 2 active oldest votes up vote 5 down vote You can debug the database error on database configuration in (config/database.php) like this: $db['default']['db_debug'] = TRUE; More info read here Also you can use Profiler to see all the queries and their speed. In controller you can put this: $this->output->enable_profiler(TRUE); More information read here share|improve this answer answered Jul 29 '13 at 12:02 Erman Belegu 2,7471431 add a comment| up vote 5 down vote codeIgniter has functions for it
full version with proper formatting. RastoStric02-23-2015, 04:03 AM I am http://forum.codeigniter.com/archive/index.php?thread-1255.html aware of the discussions on this topic in http://thesimplesynthesis.com/article/codeigniter the CI forum, StackOverflow and elsewhere. I tried to do my research carefully but it seems to me, that I did not find a proper answer. The question is how to handle database transaction error handling errors and not to loose the error details. The CI guide suggested way is PHP Code: $this->db->trans_start();
$this->db->query('ANSQLQUERY...');
$this->db->query('ANOTHERQUERY...');
$this->db->trans_complete();
if($this->db->trans_status()===FALSE)
{
//generateanerror...orusethelog_message()functiontologyourerror
}
However if 'db_debug' in config/database.php is TRUE, the execution fails on the first failing query and the error handling code is never run. OK, so let's set 'db_debug' to FALSE. In this case the error handling code runs, but how do I find out more about the DB error (error code and message)? Again, the recommended way is to use $this->db->_error_message() and $this-
and directory structure. It doesn't even autoload the database library. It's flexible enough that controllers don't even need models or views, and models have almost all the functionality of controllers. Autoloading Classes You can autoload classes by adding this little script to application/config/config.php: // deduce the application root from this file's location function __autoload ($class) { global $config; // ignore autoloading CodeIgniter classes $prefix = substr($class,0,2); if ($prefix!='CI' && $prefix!=$config['subclass_prefix']) { include(str_replace('_', DIRECTORY_SEPARATOR, strtolower($class)) . '.php'); } } // set the root of the application directory define('APP_ROOT', dirname(dirname(dirname(__FILE__)))); // put most likely paths first set_include_path('.' . PATH_SEPARATOR . APP_ROOT . '/application/libraries' . PATH_SEPARATOR . APP_ROOT . '/application/models' . PATH_SEPARATOR . APP_ROOT . '/application/controllers' . PATH_SEPARATOR . get_include_path() ); I have to credit the technique from Gerard Sychay's Pox Framework. The __autoload function is like a magic method in that when a class is not found, the name of the class being looked for is sent as a parameter and the function is given the option of finding the file that has the class. Finally, to expand the scope of directories the autoload function has to look in we add the library, model, and controller folders to PHP's include path using set_include_path. Now, three quick things to note about what the autoload function is doing: Classes beginning with 'CI' and the 'subclass_prefix' are ignored because we don't want to mess with the core of CodeIgniter The class name is changed to lowercase because lowercase filenames are CodeIgniter's convention A class name of 'Post_Comment' will be looked for in the following locations: application/libraries/post/comment.php application/models/post/comment.php application/controllers/post/comment.php (and any in any other include path) Using this technique allows you do things like: class User extends MyModel Where MyModel is in application/models/mymodel.php. Error Handling Handling Form Errors There are many ways to get form errors (see this StackOverflow thread and this one) including the built in form_errors function. The easiest way, I believe is to do the following: $validator =& _get_validation_object(); $error_messages = $validator->_error_array; Try-Catch Method Best Practices (Introduction) There is no de facto way to handle errors in CodeIgniter so I'm going to extrapolate what I think the best is. The best way is to throw and catch PHP exceptions. For error reporting on the same request you c