2011-09-28 99 views
0

我试图在CodeIgniter中使用FlexiGrid插件,但是当页面显示网格显示,但没有记录,并且有一条消息说您应该等待处理,它永远不会消失...无法让CodeIgniter的FlexiGrid正常工作

我正在使用我自己的数据库之一,所以我修改了部分代码,以便在我的数据库(id,用户名,电子邮件)中使用字段。

Flexigrid控制器:

<?php 
    class Flexigrid extends CI_Controller 
    { 

    /* function Flexigrid () 
     { 
      parent::Controller(); 
      $this->load->helper('flexigrid'); 
     } 
     */ 
     function __construct() 
     { 
      parent::__construct(); 
      $this->load->helper('flexigrid'); 
     } 

     function index() 
     { 
      //ver lib 

      /* 
       * 0 - display name 
       * 1 - width 
       * 2 - sortable 
       * 3 - align 
       * 4 - searchable (2 -> yes and default, 1 -> yes, 0 -> no.) 
       */ 
      $colModel['id'] = array('id', 40, TRUE, 'center', 2); 
      $colModel['username'] = array('username', 40, TRUE, 'center', 0); 
      $colModel['email'] = array('email', 180, TRUE, 'left', 1); 


      /* 
       * Aditional Parameters 
       */ 
      $gridParams = array(
       'width' => 'auto', 
       'height' => 400, 
       'rp' => 15, 
       'rpOptions' => '[10,15,20,25,40]', 
       'pagestat' => 'Displaying: {from} to {to} of {total} items.', 
       'blockOpacity' => 0.5, 
       'title' => 'Hello', 
       'showTableToggleBtn' => true 
      ); 

      /* 
       * 0 - display name 
       * 1 - bclass 
       * 2 - onpress 
       */ 
      $buttons[] = array('Delete', 'delete', 'test'); 
      $buttons[] = array('separator'); 
      $buttons[] = array('Select All', 'add', 'test'); 
      $buttons[] = array('DeSelect All', 'delete', 'test'); 
      $buttons[] = array('separator'); 


      //Build js 
      //View helpers/flexigrid_helper.php for more information about the params on this function 
      $grid_js = build_grid_js('flex1', site_url("/ajax"), $colModel, 'id', 'asc', $gridParams, $buttons); 

      $data['js_grid'] = $grid_js; 
      $data['version'] = "0.36"; 
      $data['download_file'] = "Flexigrid_CI_v0.36.rar"; 

      $this->load->view('flexigrid', $data); 
     } 

     function example() 
     { 
      $data['version'] = "0.36"; 
      $data['download_file'] = "Flexigrid_CI_v0.36.rar"; 

      $this->load->view('example', $data); 
     } 
    } 

    ?> 

Flexigrid view (only changes in head to correct paths to css and js): 

    <head> 
     <title>Flexigrid Implemented in CodeIgniter</title> 
     <link href="<?=$this->config->item('base_url');?>assets/flexigrid/css/style.css" rel="stylesheet" type="text/css"/> 
     <link href="<?=$this->config->item('base_url');?>assets/flexigrid/css/flexigrid.css" rel="stylesheet" 
       type="text/css"/> 
     <script type="text/javascript" src="<?=base_url()?>assets/scripts/jquery-1.5.1.min.js"></script> 
     <script type="text/javascript" 
       src="<?=$this->config->item('base_url');?>assets/flexigrid/js/jquery.pack.js"></script> 
     <script type="text/javascript" 
       src="<?=$this->config->item('base_url');?>assets/flexigrid/js/flexigrid.pack.js"></script> 
    </head> 

ajax_model: 

<?php if (!defined('BASEPATH')) exit('No direct script access allowed'); 
/** 
* Eye View Design CMS module Ajax Model 
* 
* PHP version 5 
* 
* @category CodeIgniter 
* @package EVD CMS 
* @author Frederico Carvalho 
* @copyright 2008 Mentes 100Limites 
* @version 0.1 
*/ 

class Ajax_model extends CI_Model 
{ 
    /** 
    * Instanciar o CI 
    */ 
/* public function Ajax_model() 
    { 
     parent::Model(); 
     $this->CI =& get_instance(); 
    }*/ 

    function __construct() 
    { 
     parent::__construct(); 
     $this->CI =& get_instance(); 
    } 

    public function get_countries() 
    { 
     //Select table name 
     $table_name = "users"; 

     //Build contents query 
     $this->db->select('id,username,email')->from($table_name); 
     $this->CI->flexigrid->build_query(); 

     //Get contents 
     $return['records'] = $this->db->get(); 

     //Build count query 
     $this->db->select('count(id) as record_count')->from($table_name); 
     $this->CI->flexigrid->build_query(FALSE); 
     $record_count = $this->db->get(); 
     $row = $record_count->row(); 

     //Get Record Count 
     $return['record_count'] = $row->record_count; 

     //Return all 
     return $return; 
    } 

    /** 
    * Remove country 
    * @param int country id 
    * @return boolean 
    */ 
    public function delete_country($country_id) 
    { 
     $delete_country = $this->db->query('DELETE FROM country WHERE id=' . $country_id); 

     return TRUE; 
    } 
} 

?> 

Ajax控制器(不得不使用非JSON扩展代码,所以另一部分被注释掉,根据对FlexiGrid网站上的说明另外,我是一个。修改$ recorde_item阵列时有点摸不着头脑,因为例如在一开始曾两次ID我想这一定是一个错误,但尝试添加第二个ID行也没有帮助):

<?php if (!defined('BASEPATH')) exit('No direct script access allowed'); 
class Ajax extends CI_Controller 
{ 

/* function Ajax() 
    { 
     parent::Controller(); 
     $this->load->model('ajax_model'); 
     $this->load->library('flexigrid'); 
    }*/ 


    function __construct() 
    { 
     parent::__construct(); 
     $this->load->model('ajax_model'); 
     $this->load->library('flexigrid'); 
    } 

    function index() 
    { 
     //List of all fields that can be sortable. This is Optional. 
     //This prevents that a user sorts by a column that we dont want him to access, or that doesnt exist, preventing errors. 
     $valid_fields = array('id', 'username', 'email'); 

     $this->flexigrid->validate_post('id', 'asc', $valid_fields); 

     //Get "countries" 


     $records = $this->ajax_model->get_countries(); 

     //Init json build 
     if ($this->flexigrid->init_json_build($records['record_count'])) { 
      //Add records 
      foreach ($records['records']->result() as $row) 
      { 
       $record_item = array($row->id, 
            $row->username, 
            $row->email 

       ); 
       $this->flexigrid->json_add_item($record_item); 
      } 
      //Last item added, close up. 
      $this->flexigrid->json_add_item(); 
     } 

     //Print please 
     $this->output->set_header($this->config->item('json_header')); 
     $this->output->set_output($this->flexigrid->json_build); 

     /*$this->output->set_header($this->config->item('json_header'));*/ 

     /* 
      * Json build WITH json_encode. If you do not have this function please read 
      * http://flexigrid.eyeviewdesign.com/index.php/flexigrid/example#s3 to know how to use the alternative 
      */ 
     /*  foreach ($records['records']->result() as $row) 
     { 
      $record_items[] = array($row->id, 
            $row->id, 
            $row->iso, 
            $row->name, 
            '<span style=\'color:#ff4400\'>' . addslashes($row->printable_name) . '</span>', 
            $row->iso3, 
            $row->numcode, 
            '<a href=\'#\'><img border=\'0\' src=\'' . $this->config->item('base_url') . 'public/images/close.png\'></a> ' 
      ); 
     } 
     //Print please 
     $this->output->set_output($this->flexigrid->json_build($records['record_count'], $record_items));*/ 
    } 


    //Delete Country 
    function deletec() 
    { 
     $countries_ids_post_array = split(",", $this->input->post('items')); 

     foreach ($countries_ids_post_array as $index => $country_id) 
      if (is_numeric($country_id) && $country_id > 1) 
       $this->ajax_model->delete_country($country_id); 


     $error = "Selected countries (id's: " . $this->input->post('items') . ") deleted with success"; 

     $this->output->set_header($this->config->item('ajax_header')); 
     $this->output->set_output($error); 
    } 
} 

?> 

那么,应该是这样。我还必须将“扩展控制器”等更改为“扩展CI_Controller”,因为示例中的代码似乎适用于旧版本的CodeIgniter。

但是,它不起作用。我只得到一个空网格。数据库表格确实有我提到的领域。至少我自己找不到任何拼写错误。这也是我在CodeIgniter中的默认数据库,并且在其他情况下连接到它也没有问题。它是自动加载的,所以我猜这应该会自动工作,对吧?我不应该在这里手动连接数据库,因为它使用$ db变量...

任何想法然后为什么它不工作?

回答

0

不知道你是否仍然需要这个帮助,我不知道我是最好的教导,因为我还是PHP新手,但不知道最“安全”的做法,但是,以下是我能够使用flexgrid所做的工作,可以帮助未来的用户,或者从更高级的用户引发更“安全”的想法。如果没有进一步再见,我的解决方案:

在javasript抓住和使用JSON是很容易,检查: 记住我试图保持这种非常通用的&删除了所有可能的个人价值观......它认为

var flexset = { 
    url:   'https://www.yourSite.com/index.php/yourController/yourDBFunc', 
    dataType:  'json', 
    colModel :  [ 
         {display: 'A Column', name: 'a_col', width: 80, sortable: true, align: 'center'}, // where name=the name of the column in the database 
         {display: 'Another Column', name: 'another_col', width: 110, sortable: false, align: 'center'} 
        ], 
    buttons :  [ {name: "aButton", onpress: someFunction} ], 
    searchitems : [ 
         {display: 'A Column (some more info if you want)', name: 'a_col', isdefault: true}, // where name=the name of the column in the database 
         {display: 'Quantity', name: 'charge'} 
        ], 
    sortname:  "a_col", // the name of the column in the database 
    sortorder:  "desc", // desc or asc 
    usepager:  true, 
    title:   'Some grid title', 
    useRp:   true, 
    rp:    20, 
    showTableToggleBtn:  true, 
    resizable:  true, 
    width:   "100%", 
    height:   "400px", 
    singleSelect: true, 
    onSuccess:  function() { 
     // do some work each time grid is loaded/refreshed, for instance, manipulate certain cells to have specific bgcolor based on content 
    console.log('onSuccess:\t\t', this, gridData); 
    console.log('Your inner table:\t', gridData.bDiv); 
    // you can get specific cells by searching from an attribute called "abbr" on each cell, 
    // it will = the same "name" you used when setting up the column that cell belongs too 
    console.log($(gridData.bDiv).find("td[abbr=transactionType]")); 
    } 
} 
$("#yourGrid").flexigrid(flexset); 

在php中,由于我使用2个函数,一个公共和一个私有,所以它变得有点困难。私有的实际上是进行数据库查询,而flexigrid访问的是公共数据,得到的数据是json_encoded。

公共职能

public function getJSONData() { 
    // to ensure its being pulled from a logged user, 
    // i always set at least one "where" var by hand, 
    // in this case, i am going to set the where to 
    // look for all rows containing this user's id, 
    // so i quickly grab the session var for the current id 
    $userID = $this->session->userdata('userID'); 
    // should easily be greater than false in this case unless maybe it's id is 0? 
    // in any case, this is not the exact var i check, but same exact concept and my stuff works 
    if ($userID) { 
     // Return JSON data 
     $data = array(); 
     // first i check post for a page number and go ahead and set the page 
     // this will be usful later in setting up the page query 
     $data['page'] = floatval(($this->input->post('page', TRUE))) ? floatval($this->input->post('page', TRUE)) : 1; 

     $value = array(
      'select' => '*', 
      'where' => array('ownerID' => $userID), // here you see my preset where clause, not absolutly necesary but useful, with some slight manipulation, you could easily redo this how you like 
      'orderBy' => array('a_col' => 'desc') // here i set a default orderby in case it's not provided by the post 
     ); 

     // Get all other POSSIBLE posted data and save it to $value for passing to private func 
     if ($this->input->post('qtype', TRUE) && $this->input->post('query', TRUE)) $value['where'][$this->input->post('qtype', TRUE)] = $this->input->post('query', TRUE); 
     if ($this->input->post('sortname', TRUE) && $this->input->post('sortorder', TRUE)) $value['orderBy'] = array($this->input->post('sortname', TRUE) => $this->input->post('sortorder', TRUE)); 
     if ($this->input->post('rp', TRUE)) $value['limit'] = array($this->input->post('rp', TRUE) => (($data['page'] - 1) * floatval($this->input->post('rp', TRUE)))); 

     // call private function to get the desired data from db 
     $results = $this->getDBData($value); 
     // set return data's total count 
     $data['total'] = $results["total"]["absolute"]; 

     // now we clearly define our "ROWS" for the return data to display in our final grid output 
     $data['rows'] = array(); 
     foreach($results["rows"] as $k => $v) { 
      $data['rows'][] = array(
       "id" => $v["id"], 
       "cell" => array( // keep in mind the order of these result here need match the order of the cols you set in the flexset options 
        $v["a_col"], 
        $v["another_col"] 
       ) 
      ); 
     }; 
     // finally, json encode the data to be returned 
     $data = json_encode($data); 
     echo($data); // and echo the data to our ajax caller 
    }; 
} 

的私人Funtion应该是自我explanitory

private function getDBData($val) { 
    $data = array('options'=>array(), 'rows'=>array(), 'total'=>array('absolute'=>0, 'offset'=>0)); 
    if (array_key_exists("from", $val)) { 
     $select = (array_key_exists("select", $val)) ? $val["select"] : "*"; 
     $from = $val["from"]; // cannot be changed 
     $where = array();  // (col => value) 
     $orderBy = array();  // (name => direction) 
     $limit = array();  // "totalLimit" or (start => offset) 
     $limitType = "array"; 
     $total = 0; 

     if (array_key_exists("where", $val)) if (gettype($val["where"]) === "array") $where = $val["where"]; 
     if (array_key_exists("orderBy", $val)) if (gettype($val["orderBy"]) === "array") $orderBy = $val["orderBy"]; 
     if (array_key_exists("limit", $val)) { 
      if (gettype($val["limit"]) === "array" || gettype($val["limit"]) === "integer" || gettype($val["limit"]) === "string") { 
       $limit = $val["limit"]; 
       $limitType = gettype($val["limit"]); 
      }; 
     }; 

     $options = array('select'=>$select, 'from'=>$from, 'where'=>$where, 'orderBy'=>$orderBy, 'limit'=>$limit, 'limitType'=>$limitType); 

     $this->db->select($select); 
     $this->db->from($from); 
     if (count($where) > 0) $this->db->where($where); 
     if (count($orderBy) > 0) { 
      foreach ($orderBy as $k => $v) { 
       $this->db->order_by($k, $v); 
      }; 
     }; 
     if (gettype($limit) === "array") { 
      foreach ($limit as $k => $v) { 
       $this->db->limit($k, $v); 
      }; 
     } 
     elseif (gettype($limit) === "integer" || gettype($limit) === "string") { 
      $this->db->limit($limit); 
     }; 

     $records = $this->db->get(); 
     $results = $records->result_array(); 
     if (count($where) > 0) { 
      $total = $this->db->get_where($from, $where)->num_rows; 
     } 
     else { 
      $total = $this->db->get($from)->num_rows; 
     }; 

     $data["options"] = $options; 
     $data["rows"] = $results; 
     $data["total"]["absolute"] = $total; 
     $data["total"]["offset"] = $records->num_rows; 
    }; 
    return($data); 
} 
+0

只是为了更新,这不是我的“确切”的代码,但它是我能够为codeigniter + jquery + flexigrid“学习”和“做工”的公式 – SpYk3HH