git.m6w6.name Git - m6w6/pq-gateway/blob - lib/pq/Gateway/Table/Reference.php

   1 <?php
   2
   3 namespace pq\Gateway\Table;
   4
   5 /**
   6  * Foreign key
   7  */
   8 class Reference implements \IteratorAggregate
   9 {
  10         /**
  11          * @var string
  12          */
  13         public $name;
  14
  15         /**
  16          * @var string
  17          */
  18         public $foreignTable;
  19
  20         /**
  21          * @var array
  22          */
  23         public $foreignColumns;
  24
  25         /**
  26          * @var string
  27          */
  28         public $referencedTable;
  29
  30         /**
  31          * @var array
  32          */
  33         public $referencedColumns;
  34
  35         /**
  36          * @param array $ref
  37          */
  38         function __construct($ref) {
  39                 $this->name = self::name($ref);
  40                 $this->foreignTable = $ref["foreignTable"];
  41                 $this->foreignColumns = $ref["foreignColumns"];
  42                 $this->referencedTable = $ref["referencedTable"];
  43                 $this->referencedColumns = $ref["referencedColumns"];
  44         }
  45
  46         /**
  47          * @param array $state
  48          * @return \pq\Gateway\Table\Reference
  49          */
  50         static function __set_state($state) {
  51                 return new static($state);
  52         }
  53
  54         /**
  55          * Compose an identifying name
  56          * @param array $ref
  57          * @return string
  58          */
  59         static function name($ref) {
  60                 return implode("_", array_map(function($ck, $cr) {
  61                         return preg_replace("/_$cr\$/", "", $ck);
  62                 }, $ref["foreignColumns"], $ref["referencedColumns"]));
  63         }
  64
  65         /**
  66          * Implements IteratorAggregate
  67          * @return \ArrayIterator
  68          */
  69         function getIterator() {
  70                 return new \ArrayIterator(array_combine(
  71                         $this->foreignColumns, $this->referencedColumns));
  72         }
  73 }