diff options
Diffstat (limited to 'system/core/Loader.php')
| -rw-r--r-- | system/core/Loader.php | 72 |
1 files changed, 45 insertions, 27 deletions
diff --git a/system/core/Loader.php b/system/core/Loader.php index 9f0ae4159..b09f9e688 100644 --- a/system/core/Loader.php +++ b/system/core/Loader.php @@ -96,6 +96,13 @@ class CI_Loader { protected $_ci_cached_vars = array(); /** + * Stack of variable arrays to provide nested _ci_load calls with all variables from parent calls + * + * @var array + */ + protected $_ci_load_vars_stack = array(); + + /** * List of loaded classes * * @var array @@ -350,9 +357,10 @@ class CI_Loader { throw new RuntimeException('Unable to locate the model you have specified: '.$model); } } - elseif ( ! is_subclass_of($model, 'CI_Model')) + + if ( ! is_subclass_of($model, 'CI_Model')) { - throw new RuntimeException("Class ".$model." already exists and doesn't extend CI_Model"); + throw new RuntimeException("Class ".$model." doesn't extend CI_Model"); } $this->_ci_models[] = $name; @@ -369,19 +377,16 @@ class CI_Loader { * * @param mixed $params Database configuration options * @param bool $return Whether to return the database object - * @param bool $query_builder Whether to enable Query Builder - * (overrides the configuration setting) - * * @return object|bool Database object if $return is set to TRUE, * FALSE on failure, CI_Loader instance in any other case */ - public function database($params = '', $return = FALSE, $query_builder = NULL) + public function database($params = '', $return = FALSE) { // Grab the super object $CI =& get_instance(); // Do we even need to load the database class? - if ($return === FALSE && $query_builder === NULL && isset($CI->db) && is_object($CI->db) && ! empty($CI->db->conn_id)) + if ($return === FALSE && isset($CI->db) && is_object($CI->db) && ! empty($CI->db->conn_id)) { return FALSE; } @@ -390,7 +395,7 @@ class CI_Loader { if ($return === TRUE) { - return DB($params, $query_builder); + return DB($params); } // Initialize the db variable. Needed to prevent @@ -398,7 +403,7 @@ class CI_Loader { $CI->db = ''; // Load the DB class - $CI->db =& DB($params, $query_builder); + $CI->db =& DB($params); return $this; } @@ -935,17 +940,38 @@ class CI_Loader { } /* - * Extract and cache variables + * Extract and stack variables * * You can either set variables using the dedicated $this->load->vars() * function or via the second parameter of this function. We'll merge - * the two types and cache them so that views that are embedded within - * other views can have access to these variables. + * the two types so that loaded views and files have access to these + * variables. + * Additionally we want all subsequent nested _ci_load() calls embedded + * within the current file to 'inherit' all variables that are + * accessible to the current file. For this purpose we push the current + * variable configuration (_ci_vars) to the stack and remove it again + * after the file or view is completely loaded. Nested _ci_load() calls + * within the current file extend the stack with their variable + * configuration. */ - empty($_ci_vars) OR $this->_ci_cached_vars = array_merge($this->_ci_cached_vars, $_ci_vars); - extract($this->_ci_cached_vars); - /* + is_array($_ci_vars) OR $_ci_vars = array(); + + // Include the global cached vars into the current _ci_vars if needed + empty($this->_ci_cached_vars) OR $_ci_vars = array_merge($this->_ci_cached_vars, $_ci_vars); + + // Merge the last variable configuration from a parent _ci_load() + // call into the current _ci_vars + if ( ! empty($this->_ci_load_vars_stack)) + { + $previous_variable_configuration = end($this->_ci_load_vars_stack); + $_ci_vars = array_merge($previous_variable_configuration, $_ci_vars); + } + + array_push($this->_ci_load_vars_stack, $_ci_vars); + extract($_ci_vars); + + /** * Buffer the output * * We buffer the output for two reasons: @@ -958,20 +984,12 @@ class CI_Loader { */ ob_start(); - // If the PHP installation does not support short tags we'll - // do a little string replacement, changing the short tags - // to standard PHP echo statements. - if ( ! is_php('5.4') && ! ini_get('short_open_tag') && config_item('rewrite_short_tags') === TRUE) - { - echo eval('?>'.preg_replace('/;*\s*\?>/', '; ?>', str_replace('<?=', '<?php echo ', file_get_contents($_ci_path)))); - } - else - { - include($_ci_path); // include() vs include_once() allows for multiple views with the same name - } - + include($_ci_path); // include() vs include_once() allows for multiple views with the same name log_message('info', 'File loaded: '.$_ci_path); + // Remove current _ci_vars from stack + array_pop($this->_ci_load_vars_stack); + // Return the file data if requested if ($_ci_return === TRUE) { |