從模型到控制器的組合和返回數組 - CodeIgniter

Question

我想結合來自兩個單獨查詢的兩個數組。我將我的產品存儲在兩個獨立的表格中：一個用於一般信息，如名稱，說明，價格等;另一個用於它們的各種細節，即服裝物品的尺寸和顏色。

所以，我的數據庫的結構是這樣的產品：

products table: 
p_id | title | descr | etc 

product_attrs table: 
attr_id | products.p_id | name | value 

其中名稱和值可以是名稱=大小值=大

如果我試圖讓所有的細節的產品出來在一個查詢，例如：

this->db->select('products.title, 
          p.description, 
          p.price, 
          p.stock, 
          p.name, 
          p.value'); 
     $this->db->from('p'); 
     $this->db->where('p.p_id', $id); 
     $this->db->join('product_attrs', 'product_attrs.product_id = p.p_id', 'inner'); 
     $result = $this->db->get(); 

     return $result->result_array(); 

我得到填充名稱/值對有在該產品的表product_attributes數量的數組。因此，如果有說一個產品的5個屬性，我會得到一切回到5次這樣的：

Array ([0] => Array ([title] => Modest Swimsuit - Full body [description] => UV +50 Protection - Chlorine Resistant - Water Resistant - Quick Drying - Maximum Breathe Ability- Sea Water Resistant [price] => 59.95 [stock] => 20 [name] => Brand [value] => Modestly Active Swimwear) [1] => Array ([title] => Modest Swimsuit - Full body [description] => UV +50 Protection - Chlorine Resistant - Water Resistant - Quick Drying - Maximum Breathe Ability- Sea Water Resistant [price] => 59.95 [stock] => 20 [name] => Colour [value] => Black and Light Blue) [2] => Array ([title] => Modest Swimsuit - Full body [description] => UV +50 Protection - Chlorine Resistant - Water Resistant - Quick Drying - Maximum Breathe Ability- Sea Water Resistant [price] => 59.95 [stock] => 20 [name] => size [value] => small) [3] => Array ([title] => Modest Swimsuit - Full body [description] => UV +50 Protection - Chlorine Resistant - Water Resistant - Quick Drying - Maximum Breathe Ability- Sea Water Resistant [price] => 59.95 [stock] => 20 [name] => size [value] => medium) [4] => Array ([title] => Modest Swimsuit - Full body [description] => UV +50 Protection - Chlorine Resistant - Water Resistant - Quick Drying - Maximum Breathe Ability- Sea Water Resistant [price] => 59.95 [stock] => 20 [name] => size [value] => large)) 

所以我決定將單獨的查詢每個表，這樣我就可以得到一個結果集的每個。但我想將它們結合起來，這樣我就可以將數據作爲一個數組返回給Controller，並將其顯示到我的視圖上。這就是我查詢的兩個表，我只是需要一種方法來結果結合起來，既：

$this->db->select('p.title, 
          p.description, 
          p.price, 
          p.stock'); 
     $this->db->from('p'); 
     $this->db->where('p_id', $id); 
     $result = $this->db->get(); 

     $this->db->select('name, value'); 
     $this->db->from('product_attrs'); 
     $this->db->where('p_id', $id); 
     $result2 = $this->db->get(); 

如果有人能幫我會非常感激。謝謝

編輯：

我看array_merge（）函數現在在php.net，但如果我這樣做：

$result = $this->db->get(); 
     $array1 = $result->result_array(); 

$result2 = $this->db->get(); 
     $array2 = $result2->result_array(); 
     $data = array_merge($array1,$array2); 
     return $data; 

我得到一個以上的陣列：

Array ([0] => Array ([title] => Modest Swimsuit - Full body [description] => UV +50 Protection - Chlorine Resistant - Water Resistant - Quick Drying - Maximum Breathe Ability- Sea Water Resistant [price] => 59.95 [stock] => 20) [1] => Array ([name] => Brand [value] => Modestly Active Swimwear) [2] => Array ([name] => Colour [value] => Black and Light Blue) [3] => Array ([name] => size [value] => small) [4] => Array ([name] => size [value] => medium) [5] => Array ([name] => size [value] => large)) 

有沒有辦法在我的視圖中取出上述數組中的值？

Answer 1

另一種選擇是循環遍歷第二個結果數組並將值添加到第一個數組。

// Get products results as an array 
    $this->db->select('products.title, 
         products.description, 
         products.price, 
         products.stock'); 
    $this->db->from('products'); 
    $this->db->where('product_id', $id); 
    $product = $this->db->get()->result_array(); 

    // Get product attributes as an array 
    $this->db->select('name, value'); 
    $this->db->from('product_attributes'); 
    $this->db->where('product_id', $id); 
    $product_attributes = $this->db->get()->result_array(); 

    // Loop through the results 
    foreach($product_attributes as $attribute) { 

     // Add results to original product array 
     $product[$attribute['name']] = $attribute['value']; 
    } 

這將產生一個這樣的數組：

 [title]  => Modest Swimsuit - Full body 
     [description] => UV +50 Protection - Chlorine Resistant - Water Resistant - Quick Drying - Maximum Breathe Ability- Sea Water Resistant 
     [price]  => 59.95 
     [stock]  => 20 
     [Brand]  => Modestly Active Swimwear 
     [Colour]  => Black and Light Blue 
     [size]  => small