Created
April 9, 2012 18:42
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Codeigniter Abstract Module
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<?php if(! defined("BASEPATH")) exit("No direct script access allowed"); | |
abstract class MY_Model extends CI_Model { | |
private $file_dest; | |
private $table; | |
private $fields; | |
private $field_values; | |
public function __construct() { | |
parent::__construct(); | |
$this->load->database(); | |
$this->load->helper(array('date', 'html')); | |
$this->load->library(array('ion_auth')); | |
$this->table = (string) ''; | |
$this->fields = array(); | |
$this->field_values = ''; | |
$this->file_dest = ''; | |
} | |
//Retrieves table's field meta | |
public function get_field_meta($table_name) { | |
$this->table = $table_name; | |
return $this->db->field_data($this->table); | |
} | |
//reads data from table when a condition is met | |
public function read_values_where($table_name, $condition=NULL, $field=NULL) { | |
$this->table = strtolower($table_name); | |
$field_name = (!isset($field) ? "id" : $field); | |
$sql = "SELECT * FROM `$table_name` "; | |
if(isset($condition)) { | |
$sql .= "WHERE $field = '$condition'"; | |
} | |
$sql .= ";"; | |
$query = $this->db->query($sql); | |
return $query->num_rows() > 0 ? $query->result_array() : FALSE; | |
} | |
public function create_update_logic($table_name,$operation,$record=NULL,$field=NULL) { | |
$this->table = $table_name; | |
$write = fopen("insert_data.txt", "a"); | |
//path to image upload directory | |
$this->file_dest = realpath(str_replace('system', 'assets/img', BASEPATH)); | |
$path = $this->file_dest.'/'.strtolower($this | |
->uri | |
->segment(2)); | |
//loop through table's fields and retrieve metadata | |
foreach($this->get_field_meta($this->table) as $field) { | |
//id is pk, auto-increment | |
if($field->name != "id") { | |
if(substr($field->name, 0, -2) == "image") { | |
//if upload destination does not exist | |
if(!is_dir($path)) { | |
@mkdir($path, 0777); | |
} | |
for($k = 1; $k <= count($_FILES); $k++) { | |
$file = $path.'/'.$_FILES['userfile_'.$k]['name']; | |
if(move_uploaded_file($_FILES['userfile_'.$k]['tmp_name'], $file)) { | |
$upload_val = "'".base_url()."assets/img/".$this | |
->uri | |
->segment(2) | |
$upload_val .= '/'.$_FILES['userfile_'.$k]['name']."'"; | |
$this->fields[] = "`image_".$k."`"; | |
$this->field_values[] = $upload_val; | |
} | |
else { | |
ob_start(); | |
$errors = $_FILES['userfile_'.$k]['errors']; | |
$out = print_r($errors); | |
fwrite($write, $out); | |
ob_end_clean(); | |
} | |
} | |
} | |
else { | |
$this->fields[] = $field->name; | |
$postVal = $this->input->post($field->name); | |
if(is_numeric($postVal)) { | |
if(strpos("date", $field->name)) { | |
$this->field_values[] = date('Y-m-d H:i:s', strtotime($postVal)); | |
} | |
else { | |
$this->field_values[] = mysql_real_escape_string($postVal); | |
} | |
} | |
else { | |
$this->field_values[] = "'".mysql_real_escape_string($postVal)."'"; | |
} | |
} | |
} | |
} | |
if($operation == "add") { | |
$sql = "INSERT INTO `$this->table` "; | |
$sql .= "(".implode(', ', $this->fields).") "; | |
$sql .= "VALUES (".implode(', ', $this->field_values).")"; | |
fwrite($write, $sql); | |
} | |
if($operation == "edit" ) { | |
$field_count = count($this->fields); | |
$sql = "UPDATE $this->table "; | |
$sql .= "SET "; | |
for($i=0; $i <= $field_count - 1; $i++) { | |
$sql .= $this->fields[$i]." = ".$this->field_values[$i]; | |
$i != $field_count - 1 ? $sql .= ", " : $sql .= " "; | |
} | |
if(!is_numeric($this->uri->segment(3)))) { | |
throw new Exception("Improperly formatted URL"); | |
} | |
else { | |
$sql .= "WHERE id = '$record;"; | |
} | |
} | |
return $this->db->query($sql); | |
} | |
public function destroy($table ,$field_id, $row_id) { | |
$row_id = str_replace('_', ' ', $row_id); | |
foreach(MY_Model::get_field_meta($table) as $field) { | |
if($field->name == "image") { | |
$sql = "SELECT image from $table;"; | |
$query = $this->db->query($sql); | |
if($query->num_rows() > 0) { | |
foreach($query->result() as $q) { | |
$data[] = $q; | |
} | |
unlink($data); | |
} | |
} | |
} | |
$sql = "DELETE FROM $table "; | |
$sql .= "WHERE $field_id = '$row_id';"; | |
return $this->db->query($sql); | |
} | |
} | |
?> |
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