php – CodeIgniter Sqlite无法正常工作
每当我在我的模型中查询我的数据库(sqlite)时(我使用codeigniter,完整代码如下):
$this->db->select('post'); $query = $this->db->get('posts'); return $query->result_array(); 我收到以下错误: Fatal error: Call to a member function rowCount() on a non-object in /codeigniter/system/database/drivers/pdo/pdo_result.php on line 42 当将查询更改为不存在的内容时,我会收到“正确”错误,例如: A Database Error Occurred Error Number: HY000 no such column: posst SELECT posst FROM posts Filename: /codeigniter/models/post.php Line Number: 8 这让我相信数据库实际上正在运行,但是我有些遗漏. ——–完整代码: <?php class Post extends CI_Model{ function get_posts(){ $this->db->select('posst'); $query = $this->db->get('posts'); return $query->result_array(); } } 我的控制器在controller / posts.php中: <?php class Posts extends CI_Controller{ function index(){ $this->load->model('post'); $data['posts']=$this->post->get_posts(); echo"<pre>"; print_r($data['posts']); echo"</pre>"; } } 我在database.php中的数据库配置: $active_group = 'default'; $active_record = TRUE; $db['default']['hostname'] = 'sqlite:/home/******/******/www/wtp3/codeigniter/db/wtp35.sqlite'; $db['default']['username'] = ''; $db['default']['password'] = ''; $db['default']['database'] = ''; $db['default']['dbdriver'] = 'pdo'; $db['default']['dbprefix'] = ''; $db['default']['pconnect'] = TRUE; $db['default']['db_debug'] = TRUE; $db['default']['cache_on'] = FALSE; $db['default']['cachedir'] = ''; $db['default']['char_set'] = 'utf8'; $db['default']['dbcollat'] = 'utf8_general_ci'; $db['default']['swap_pre'] = ''; $db['default']['autoinit'] = TRUE; $db['default']['stricton'] = FALSE; 解决方法
这个修复的功劳是与S.Stüvel,J.Bransen和S. Timmer一起.这是针对特定服务器的修复,因此YMMV.它虽然为我做了伎俩.
在pdo_driver.php中,第81行开始更改: empty($this->database) OR $this->hostname .= ';dbname='.$this->database; $this->trans_enabled = FALSE; $this->_random_keyword = ' RND('.time().')'; // database specific random keyword } 至 if(strpos($this->database,'sqlite') !== FALSE) { $this->hostname = $this->database; $this->_random_keyword = ' RANDOM()'; } else { $this->hostname .= ";dbname=".$this->database; $this->_random_keyword = ' RND('.time().')'; // database specific random keyword } $this->trans_enabled = FALSE; } 在第189行将整个函数_execute($sql)更改为 function _execute($sql) { $sql = $this->_prep_query($sql); $result_id = $this->conn_id->query($sql); if (is_object($result_id)) { $this->affect_rows = $result_id->rowCount(); } else { $this->affect_rows = 0; } return $result_id; } 然后在pdo_result.php中更改“: public $num_rows; 至 var $pdo_results = ''; var $pdo_index = 0; 在36号线上取代整个功能 public function num_rows() { if (is_int($this->num_rows)) { return $this->num_rows; } elseif (($this->num_rows = $this->result_id->rowCount()) > 0) { return $this->num_rows; } $this->num_rows = count($this->result_id->fetchAll()); $this->result_id->execute(); return $this->num_rows; } 有: function num_rows() { if ( ! $this->pdo_results ) { $this->pdo_results = $this->result_id->fetchAll(PDO::FETCH_ASSOC); } return sizeof($this->pdo_results); 然后在第60行改变 function num_fields() { return $this->result_id->columnCount(); } 至: function num_fields() { if ( is_array($this->pdo_results) ) { return sizeof($this->pdo_results[$this->pdo_index]); } else { return $this->result_id->columnCount(); } } 然后在第94行更改: function field_data() { $data = array(); try { for($i = 0; $i < $this->num_fields(); $i++) { $data[] = $this->result_id->getColumnMeta($i); } return $data; } catch (Exception $e) { if ($this->db->db_debug) { return $this->db->display_error('db_unsuported_feature'); } return FALSE; } } 至: function field_data() { if ($this->db->db_debug) { return $this->db->display_error('db_unsuported_feature'); } return FALSE; } 然后第146行改变: return FALSE; 至 $this->pdo_index = $n; 然后在第159行改变 function _fetch_assoc() { return $this->result_id->fetch(PDO::FETCH_ASSOC); } 至 function _fetch_assoc() { if ( is_array($this->pdo_results) ) { $i = $this->pdo_index; $this->pdo_index++; if ( isset($this->pdo_results[$i])) return $this->pdo_results[$i]; return null; } return $this->result_id->fetch(PDO::FETCH_ASSOC); } 最后在第174行改变: function _fetch_object() { return $this->result_id->fetchObject(); 至 function _fetch_object() { if ( is_array($this->pdo_results) ) { $i = $this->pdo_index; $this->pdo_index++; if ( isset($this->pdo_results[$i])) { $back = new stdClass(); foreach ( $this->pdo_results[$i] as $key => $val ) { $back->$key = $val; } return $back; } return null; } return $this->result_id->fetch(PDO::FETCH_OBJ); } 这对我有用.再一次,不是我的工作,信任是S.Stüvel,J.Bransen和S. Timmer.相当长的答案,但我希望这会有所帮助. (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |