如何統計Codeigniter中的結果？

Question

我知道codeigniter的：

$ this-> db-> count_all（'table_name'）;

而且我可以使用條件和獲取過濾結果。但在我的情況下，我不知道如何在我的代碼實現在這裏：

我想計算所有經銷商與key =「some-value」。

這是我的看法，以顯示所有代理商：

<?php $this->load->view('admin/components/page_head') ?> 
    <section class="container-fluid"> 
    <ul class="nav nav-pills"> <li class="active"> <h2><i class="glyphicon glyphicon-user"></i>&nbsp Resellers&nbsp<span class="badge"><?php echo $this->db->count_all('reseller');?></span></h2></li></ul> 


    <h3> <?php echo anchor('admin/reseller/add_reseller', '<i class="glyphicon glyphicon-plus"></i> Add a Reseller'); ?></h3> 

     <table class="table table-primary"> 
      <thead> 
       <tr> 

        <th>SIP Userid</th> 
        <th>SIP Password</th> 
        <th>Unique ID</th> 
        <th>Allocation Block</th> 
        <th>Name</th> 
        <th>Email</th> 
        <th>Phone</th> 
        <th>Intial User Required</th> 
        <th>Location</th> 
        <th>Balance</th> 
        <th>Country</th> 
        <th>Country Code</th> 
        <th>Status</th> 
        <th>Edit</th> 
        <th>Delete</th> 


       </tr> 
      </thead> 
      <tbody> 
    <?php if(count($resellers)): foreach($resellers as $reseller): ?> 
      <tr> 

     <td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'sip_username','<?php echo $reseller->id; ?>')" ><?php echo $reseller->sip_username; ?></td> 
     <td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'sip_password','<?php echo $reseller->id; ?>')" ><?php echo $reseller->sip_password; ?></td> 
     <td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'key','<?php echo $reseller->id; ?>')" ><?php echo $reseller->key; ?></td> 
     <td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'allocation_block','<?php echo $reseller->id; ?>')" ><?php echo $reseller->allocation_block; ?></td> 
     <td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'name','<?php echo $reseller->id; ?>')" ><?php echo $reseller->name; ?></td> 
     <td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'email','<?php echo $reseller->id; ?>')" ><?php echo $reseller->email; ?></td> 
     <td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'phone','<?php echo $reseller->id; ?>')" ><?php echo $reseller->phone; ?></td> 
     <td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'user_num','<?php echo $reseller->id; ?>')" ><?php echo $reseller->user_num; ?></td> 
     <td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'address','<?php echo $reseller->id; ?>')" > <?php echo $reseller->address; ?></td> 
     <td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'balance','<?php echo $reseller->id; ?>')" ><?php echo $reseller->balance; ?></td> 
     <td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'country','<?php echo $reseller->id; ?>')" ><?php echo $reseller->country; ?></td> 
     <td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'country_code','<?php echo $reseller->id; ?>')" ><?php echo $reseller->country_code; ?></td> 
     <td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'status','<?php echo $reseller->id; ?>')" ><?php echo $reseller->status; ?></td> 


       <td><?php echo btn_edit('admin/reseller/edit/' . $reseller->id); ?></td> 
       <td><?php echo btn_delete('admin/reseller/delete/' . $reseller->id); ?></td> 
      </tr> 
    <?php endforeach; ?> 
    <?php else: ?> 
      <tr> 
       <td colspan="3">We could not find any users.</td> 
      </tr> 
    <?php endif; ?> 
      </tbody> 
     </table> 
    </section> 
    <?php $this->load->view('admin/components/page_tail') ?> 

現在我有另一個表稱爲用戶，並在我已經在經銷商的密鑰存儲在所謂的關鍵領域，所以我想指望所有具有密鑰=「某個密鑰」的用戶。

這是需要的，因爲在經銷商的名單我想顯示哪些經銷商有多少用戶。

我這樣做：

$key="Rajan-92-1-100-1"; 

     $this->load->model('reseller_m'); 
     $this->load->view('admin/reseller/count'); 

     $this->db->where('key',$key); 

     $this->db->from('users'); 
     $count = $this->db->count_all_results(); 

     echo $count; 

，但我在這裏提供的關鍵靜態，我想爲每個經銷商

更新動態計數這樣：

控制器

public function index() 
     { 
      $usertype=$this->session->userdata('usertype'); 
      if($usertype ==="admin") 
       { 
        // Fetch all users 
        $this->data['resellers'] = $this->reseller_m->get(); 




        $data['resellers'] = array(); 

       if ($results) { 
        foreach($results as $result) { 
        $data['resellers'][] = array(
         'sip_username' => $result['sip_username'], 
         'sip_password' => $result['sip_password'], 
         'key' => $result['key'], 
         'total' => $this->reseller_m->count($result['key']); 
         // Add your other data here. 
        ); 
        } 
       } 


        // Load view 
        $this->data['subview'] = 'admin/reseller/index'; 
        $this->load->view('admin/_layout_main', $this->data); 
       } 
      else 
       { 


        $this->load->view('permission'); 
       } 

     } 

觀：

<td> <?php echo $reseller['total'];?></td> 

的型號：

public function count($key) 
    { 
     $this->db->where('key', $key); 
     $query = $this->db->get($this->db->dbprefix . 'users'); 

     return $query->num_rows(); 
    } 

    public function get() 
    { 

     $query = $this->db->get($this->db->dbprefix . 'users'); 

      if ($query->num_rows() > 0) 
      { 
        return $query->results_array(); 
      } 
      else 
      { 
        return FALSE; 
      } 
    } 

Answer 1

我會盡量給它一去。

我使用return $query->num_rows();當我需要計算在哪裏。

型號功能

class Reseller_m extends CI_Model { 

    public function count($key) { 
    $this->db->where('key', $key); 
    $query = $this->db->get($this->db->dbprefix . 'users'); 

    return $query->num_rows(); 
    } 

public function get() { 
    // Not sure if you have any thing else here. 
    $query = $this->db->get($this->db->dbprefix . 'users'); 

    if ($query->num_rows() > 0) { 
      return $query->results_array(); 
      // return $query->row_array(); 
    } else { 
      return FALSE; 
    } 
    } 

} 

控制器

當你需要在表計動態，你可以調用函數模型如下圖所示。在數組中，我發現像下面那樣的數組數組更容易。

public function index() { 

    $usertype = $this->session->userdata('usertype'); 

    if ($usertype === "admin") { 

    $this->load->model('reseller_m'); 

    $results = $this->reseller_m->get(); 

    // Removed $this->data and just have $data see what works. 

    $data['resellers'] = array(); 

    if ($results) { 
     foreach($results as $result) { 
     $data['resellers'][] = array(
      'id' => $result['id'], 
      'sip_username' => $result['sip_username'], 
      'sip_password' => $result['sip_password'], 
      'key' => $result['key'], 
      'total' => $this->reseller_m->count($result['key']), 
      'allocation_block' => $result['allocation_block'], 
      'name' => $result['name'], 
      'email' => $result['email'], 
      'phone' => $result['phone'], 
      'user_num' => $result['user_num'], 
      'address' => $result['address'], 
      'balance' => $result['balance'], 
      'country_code' => $result['country_code'], 
      'status' => ($result['status'] ? Enabled : Disabled) 
     ); 
     } 
    } 

     $data['subview'] = 'admin/reseller/index'; 
     $this->load->view('admin/_layout_main', $data); 

    } else { 

     $this->load->view('permission'); 

    } 
} 

查看示例

<td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'total','<?php echo $reseller['id'];?>')" ><?php echo $reseller['total'];?></td> 

表實例

<tbody> 

<?php if ($resellers) {?> 

<?php foreach ($resellers as $reseller) {?> 
<td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'sip_username','<?php echo $reseller['id'];?>')" ><?php echo $reseller['sip_username'];?></td> 
<td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'sip_password','<?php echo $reseller['id'];?>')" ><?php echo $reseller['sip_password'];?></td> 
<td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'key','<?php echo $reseller['id'];?>')" ><?php echo $reseller['key'];?></td> 

// Added here Total Here 
<td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'total','<?php echo $reseller['id'];?>')" ><?php echo $reseller['total'];?></td> 


<td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'allocation_block','<?php echo $reseller['id'];?>')" ><?php echo $reseller['allocation_block'];?></td> 
<td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'name','<?php echo $reseller['id'];?>')" ><?php echo $reseller['name'];?></td> 
<td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'email','<?php echo $reseller['id'];?>')" ><?php echo $reseller['email'];?></td> 
<td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'phone','<?php echo $reseller['id'];?>')" ><?php echo $reseller['phone'];?></td> 
<td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'user_num','<?php echo $reseller['id'];?>')" ><?php echo $reseller['user_num'];?></td> 
<td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'address','<?php echo $reseller['id'];?>')" ><?php echo $reseller['address'];?></td> 
<td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'balance','<?php echo $reseller['id'];?>')" ><?php echo $reseller['balance'];?></td> 
<td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'country_code','<?php echo $reseller['id'];?>')" ><?php echo $reseller['country_code'];?></td> 
<td contenteditable="true" onClick="edit_Reseller(this)" onBlur="save_reseller(this,'status','<?php echo $reseller['id'];?>')" ><?php echo $reseller['status'];?></td> 

<?php } else { ?> 

<p>No Results</p> 

<?php }?> 

</tbody>