Codeigniter Database Error Exception Handling
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Codeigniter Catch Database Error
more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users codeigniter try catch database error Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping codeigniter database error handling each other. Join 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
Codeigniter Try Catch
a DB error instead of displaying a message like: A Database Error Occurred Error Number: 1054 Unknown column 'foo' in 'where clause' SELECT * 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 9,95967186337 add a comment|
Codeigniter Active Record Error Handling
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 version 3. Use $this->db->error() instead. (see codeigniter.com/user_guide/database/…) –mxgr Jul 26 '15 at 11:17 | show 2 more comments up vote 15 down vote Maybe this: $db_debug = $this->db->db_debug; //save setting $this->db->db_debug = FALSE; //disable debugging for queries $result = $this->db->query($sql); //run query //check for errors, etc $this->db->db_debug = $db_debug; //restore setting share|improve this answer answered Jun 18 '13 at 6:15 RayJ 31133 add a comment| up vote 13 down vote In Codeigniter 3.0 (CI3), all you have to do is $this->db->error() If you need to get the last error that has occured, the error() method will return an array containing its code and message http://www.cod
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Codeigniter Error Handling
us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is codeigniter error handling example a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Codeigniter: How to handle database error? up vote 0 down vote favorite I'm creating http://stackoverflow.com/questions/7843406/codeigniter-how-to-catch-db-errors a web application using codeigniter and postgresql. I have this inside my database: user id name unique(name) When someone try to register with the same name, i get an error. How can i handle them, without displaying the codeigniter's error and showing instead my custom error? If i set $db['default']['db_debug'] = FALSE; i don't get any error of course, but is there a way to handle the db error or http://stackoverflow.com/questions/26297374/codeigniter-how-to-handle-database-error should i check myself if the table already contains an entry with that same name? codeigniter debugging share|improve this question asked Oct 10 '14 at 9:34 Federico Ponzi 85911334 migrated from webmasters.stackexchange.com Oct 10 '14 at 10:31 This question came from our site for pro webmasters. add a comment| 3 Answers 3 active oldest votes up vote 0 down vote accepted I dont know anything by codeigniter, but im going to assume the principle works the same: You first make a query like SELECT id FROM tablename WHERE name='SomeName' LIMIT 1, then you check the number of rows. This kind of checking is fairly normal. Control as much as you (sensebly) can to avoid errors down the road. Zero rows? Safe to insert. Not zero rows? Display something like 'username allready taken'. Example with some code: $check = mysqli_query("SELECT id FROM tablename WHERE name='SomeName' LIMIT 1"); if( $check->num_rows!==0 ){ echo 'Username allready taken'; // echo is bad, you should process this better, but this is easy demo } else{ // Your normal inserting code goes here. } share|improve this answer edited Oct 10 '14 at 11:21 answered Oct 10 '14 at 9:50 Martijn 7,5082939 Thanks for the answer Martijn, but i was asking if there were
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and directory structure. It doesn't even autoload the database library. It's flexible enough that controllers don't even need models or views, and models have almost all the functionality of controllers. Autoloading Classes You can autoload classes by adding this little script to application/config/config.php: // deduce the application root from this file's location function __autoload ($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_validati