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PO
primarykey
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13108058
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CreationDate
2012-10-28T10:31:31.083
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2012-10-28T10:31:31.083
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1437005
ParentId
13102126
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2
Score
1
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0
LastEditorDisplayName
text
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I found it very interesting your question and have been doing some research to solve your problem. I tell you my solution: the first is to activate the hooks, so in your config.php file make this change: <pre><code>$config['enable_hooks'] = TRUE; </code></pre> Once activated the hooks, you need to create a new hook, for it in the file config/hooks.php put something like the following: <pre><code>$hook['post_controller_constructor'] = array( 'class' => 'DBTest', 'function' => 'index', 'filename' => 'dbtest.php', 'filepath' => 'hooks', 'params' => array(), ); </code></pre> Thus, your hook kicks in once the controller has been instantiated, but has run no method yet. This is neccesary to use $CI = &get_instance() To finish create the file /application/hooks/dbtest.php with content similar to the following: <pre><code><?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); class DBTest { function index() { $CI = &get_instance(); $databases = array( 'mysqli://user1:pass1@host1/db1', 'mysqli://user2:pass2@host2/db2', 'mysqli://user3:pass3@host3/db3', 'mysqli://user4:pass4@host4/db4', 'mysqli://user5:pass5@host5/db5', ); foreach ($databases as $dsn) { $db_name = substr(strrchr($dsn, '/'), 1); $CI->load->database($dsn); $CI->load->dbutil(); if(!$CI->dbutil->database_exists($db_name)) { // if connection details incorrect show error show_error("Site is not available: can't connect to database $db_name"); } } } } </code></pre> You must use dsn for $CI->load->database() in this way we can handle the error instead of Code Igniter when it tries to load the database. Hope this helps.
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1. POHow to check all database for availability in CI 2
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