includes/libs/rdbms/database/resultwrapper/FakeResultWrapper.php

   1 <?php
   2
   3 namespace Wikimedia\Rdbms;
   4
   5 use stdClass;
   6
   7 /**
   8  * Overloads the relevant methods of the real ResultsWrapper so it
   9  * doesn't go anywhere near an actual database.
  10  */
  11 class FakeResultWrapper implements IResultWrapper {
  12         /** @var stdClass[]|array[] */
  13         protected $result;
  14
  15         /** @var int */
  16         protected $pos = 0;
  17
  18         /**
  19          * @param stdClass[]|array[]|FakeResultWrapper $result
  20          */
  21         public function __construct( $result ) {
  22                 if ( $result instanceof self ) {
  23                         $this->result = $result->result;
  24                 } else {
  25                         $this->result = $result;
  26                 }
  27         }
  28
  29         public function numRows() {
  30                 return count( $this->result );
  31         }
  32
  33         public function fetchObject() {
  34                 $current = $this->current();
  35
  36                 $this->next();
  37
  38                 return $current;
  39         }
  40
  41         public function fetchRow() {
  42                 $row = $this->valid() ? $this->result[$this->pos] : false;
  43
  44                 $this->next();
  45
  46                 return is_object( $row ) ? get_object_vars( $row ) : $row;
  47         }
  48
  49         public function seek( $pos ) {
  50                 $this->pos = $pos;
  51         }
  52
  53         public function free() {
  54                 $this->result = null;
  55         }
  56
  57         public function rewind() {
  58                 $this->pos = 0;
  59         }
  60
  61         public function current() {
  62                 $row = $this->valid() ? $this->result[$this->pos] : false;
  63
  64                 return is_array( $row ) ? (object)$row : $row;
  65         }
  66
  67         public function key() {
  68                 return $this->pos;
  69         }
  70
  71         public function next() {
  72                 $this->pos++;
  73
  74                 return $this->current();
  75         }
  76
  77         public function valid() {
  78                 return array_key_exists( $this->pos, $this->result );
  79         }
  80 }
  81
  82 /**
  83  * @deprecated since 1.29
  84  */
  85 class_alias( FakeResultWrapper::class, 'FakeResultWrapper' );