Question

我想在字段＆＃34; table_ids＆＃34;中保存数组数据（json数据）。表2，例如：

TABLE_1

| id | name    |
----------------
| 1  | title 1 |
| 2  | title 2 | 
| 3  | title 3 |
| 4  | title 4 |
etc...

TABLE_2

| id | table_ids    |
---------------------
| 1  | "{1,3}"      | 
| 2  | "{3,4,2}"    |

并且，我很感兴趣如何在表2的Phalcon模型中建立关系，hasMany as＆＃34; table1relation＆＃34;表1中的字段＆＃34; table_ids＆＃34;

$this->hasMany( 'table_ids', 'Table1', 'id', array('alias' => 'table1relation' ));

以便在Table_2中具有正确绑定的对象

$tbl2 = Table2::find();
foreach( $id in $tbl2.table1relation ) {
    echo $id->name;
};

我想知道这可能吗？感谢

Answer 1

第一个有效的解决方案是：

class Table2 extends Model
{

    ....

    // get all items with mapped Table1 model resulsets
    public static function GetItems() {

       $items = Table2::find()->filter( function( $current_item ){

        if ( $current_item->table_ids != null ) {

            $final = array();
            $array = explode( ",", $current_item->table_ids );

            foreach( $array as $key => $value ) {
                $table1_item = Table1::findFirst($value);
                array_push( $final, $table1_item );
            }

            $current_item->table_ids = $final;
        } else {
            $current_item->table_ids = array();
        }
        return $current_item;
    });

    return $items;
    }

    public function beforeSave() {
        if ( is_array( $this->table_ids ) ){
            $cat_value = "";
            $ids = $this->table_ids;

            foreach( $ids as $ids_item ) {
                $cat_value .= $ids_item->id;
                if ( next( $ids ) == true ) $cat_value .= ",";
            }
            $this->table_ids = $cat_value;
        }
    }
}

现在我们可以在控制器中使用这样的方法

// get items
$items = Table2::GetItems();

foreach( $items->table_ids as $ids ) {
     echo $ids->name;
}

...

$ids = new Table1();
$ids->id = 6;
$ids->name = "title 6"

$item = new Table2();
$item->id = 10;
$item->table_ids = $ids;

// or

$item->table_ids = "1,2,3,4,5";

这项工作

Phalcon，用json字符串或简单数组字符串按字段绑定模型

1 个答案: