git.m6w6.name Git - m6w6/pq-gateway/blob - lib/pq/Query/Expressible.php

   1 <?php
   2
   3 namespace pq\Query;
   4
   5 class Expressible implements ExpressibleInterface
   6 {
   7         /**
   8          * @var string
   9          */
  10         protected $name;
  11
  12         /**
  13          * @var mixed
  14          */
  15         protected $data;
  16
  17         /**
  18          * @param string $name
  19          * @param mixed $data
  20          */
  21         function __construct($name, $data) {
  22                 $this->name = $name;
  23                 $this->data = $data;
  24         }
  25
  26         /**
  27          * Get value as string
  28          * @return string
  29          */
  30         function __toString() {
  31                 return (string) $this->data;
  32         }
  33
  34         /**
  35          * Test whether the value is an unevaluated expression
  36          * @return bool
  37          */
  38         function isExpr() {
  39                 return $this->data instanceof Expr;
  40         }
  41
  42         /**
  43          * Get value
  44          * @return mixed
  45          */
  46         function get() {
  47                 return $this->data;
  48         }
  49
  50         /**
  51          * Set the value
  52          * @param mixed $data
  53          * @return \pq\Query\Expressible
  54          */
  55         function set($data) {
  56                 $this->data = $data;
  57                 return $this;
  58         }
  59
  60         /**
  61          * Modify the data
  62          * @param mixed $data
  63          * @param string $op a specific operator
  64          * @return \pq\Query\Expressible
  65          */
  66         function mod($data, $op = null) {
  67                 if (!($this->data instanceof Expr)) {
  68                         $this->data = new Expr($this->name);
  69                 }
  70
  71                 if ($data instanceof Expr) {
  72                         $this->data->add($data);
  73                 } elseif (!isset($op) && is_numeric($data)) {
  74                         $this->data->add(new Expr("+ $data"));
  75                 } else {
  76                         $this->data->add(new Expr("%s %s", isset($op) ? $op : "||", $data));
  77                 }
  78
  79                 return $this;
  80         }
  81 }