1: <?php
 2: 
 3: namespace Alchemy\orm;
 4: use Alchemy\core\query\Predicate;
 5: use Alchemy\core\query\Query;
 6: use Alchemy\core\query\TableRef;
 7: use Alchemy\util\promise\Promise;
 8: 
 9: 
10: /**
11:  * Represents a table reference through a singular relationship
12:  */
13: class ORMTableRef extends TableRef {
14: 
15:     protected $predicate;
16:     protected $relcache = array();
17: 
18: 
19:     //public function __call($name, $args);
20: 
21: 
22:     public function __construct($schema, $predicate = null) {
23:         parent::__construct($schema);
24:         $this->predicate = $predicate;
25:     }
26: 
27: 
28:     public function __get($name) {
29:         if (array_key_exists($name, $this->relcache)) {
30:             return $this->relcache[$name];
31:         }
32: 
33:         if ($this->schema->hasRelationship($name)) {
34:             $rel = $this->schema->getRelationship($name)->getRef($this);
35:             $this->relcache[$name] = $rel;
36:             return $rel;
37:         }
38: 
39:         return parent::__get($name);
40:     }
41: 
42: 
43:     public function all(Predicate $expr) {}
44: 
45: 
46:     public function getDescription($maxdepth = 3, $curdepth = 0) {
47:         $str = parent::getDescription($maxdepth, $curdepth);
48:         $prd = $this->predicate ? "{$this->predicate->getDescription($maxdepth, $curdepth)}" : "";
49:         return "$str {$prd}";
50:     }
51: 
52: 
53:     public function none(Predicate $expr) {}
54: 
55: 
56:     public function predicate() {
57:         if ($this->predicate instanceof Promise) {
58:             $this->predicate = $this->predicate->expect();
59:         }
60: 
61:         return $this->predicate;
62:     }
63: 
64: 
65:     public function relationships() {
66:         $relationships = array();
67:         foreach($this->schema->listRelationships() as $name => $prop) {
68:             $relationships[] = $this->{$name};
69:         }
70: 
71:         return $relationships;
72:     }
73: 
74: 
75:     public function where() {
76:         return Query::ORM($this)->where(func_get_args());
77:     }
78: }
79: