|
1
|
|
|
<?php |
|
2
|
|
|
|
|
3
|
|
|
namespace JamesMoss\Flywheel; |
|
4
|
|
|
|
|
5
|
|
|
/** |
|
6
|
|
|
* Query |
|
7
|
|
|
* |
|
8
|
|
|
* Builds an executes a query whichs searches and sorts documents from a |
|
9
|
|
|
* repository. |
|
10
|
|
|
*/ |
|
11
|
|
|
class Predicate |
|
12
|
|
|
{ |
|
13
|
|
|
const LOGICAL_AND = 'and'; |
|
14
|
|
|
const LOGICAL_OR = 'or'; |
|
15
|
|
|
|
|
16
|
|
|
protected $predicates = array(); |
|
17
|
|
|
protected $operators = array( |
|
18
|
|
|
'>', '>=', '<', '<=', '==', '===', '!=', '!==', |
|
19
|
|
|
); |
|
20
|
|
|
|
|
21
|
|
|
public function getAll() |
|
22
|
|
|
{ |
|
23
|
|
|
return $this->predicates; |
|
24
|
|
|
} |
|
25
|
|
|
|
|
26
|
|
|
public function where($field, $operator = null, $value = null) |
|
27
|
|
|
{ |
|
28
|
|
|
return $this->andWhere($field, $operator, $value); |
|
29
|
|
|
} |
|
30
|
|
|
|
|
31
|
|
|
public function andWhere($field, $operator = null, $value = null) |
|
32
|
|
|
{ |
|
33
|
|
|
$this->addPredicate(self::LOGICAL_AND, $field, $operator, $value); |
|
34
|
|
|
|
|
35
|
|
|
return $this; |
|
36
|
|
|
} |
|
37
|
|
|
|
|
38
|
|
|
public function orWhere($field, $operator = null, $value = null) |
|
39
|
|
|
{ |
|
40
|
|
|
$this->addPredicate(self::LOGICAL_OR, $field, $operator, $value); |
|
41
|
|
|
|
|
42
|
|
|
return $this; |
|
43
|
|
|
} |
|
44
|
|
|
|
|
45
|
|
|
protected function addPredicate($type, $field, $operator = null, $value = null) |
|
46
|
|
|
{ |
|
47
|
|
|
if (!$this->predicates) { |
|
|
|
|
|
|
48
|
|
|
$type = false; |
|
49
|
|
|
} |
|
50
|
|
|
|
|
51
|
|
|
if ($field instanceof \Closure) { |
|
52
|
|
|
$sub = new self(); |
|
53
|
|
|
call_user_func($field, $sub); |
|
54
|
|
|
|
|
55
|
|
|
$this->predicates[] = array($type, $sub->getAll()); |
|
56
|
|
|
|
|
57
|
|
|
return $this; |
|
58
|
|
|
} |
|
59
|
|
|
|
|
60
|
|
|
$field = trim($field); |
|
61
|
|
|
|
|
62
|
|
|
if ($field == '') { |
|
63
|
|
|
throw new \InvalidArgumentException('Field name cannot be empty.'); |
|
64
|
|
|
} |
|
65
|
|
|
|
|
66
|
|
|
if (!in_array($operator, $this->operators)) { |
|
67
|
|
|
throw new \InvalidArgumentException('Unknown operator `'.$operator.'`.'); |
|
68
|
|
|
} |
|
69
|
|
|
|
|
70
|
|
|
$this->predicates[] = array($type, $field, $operator, $value); |
|
71
|
|
|
|
|
72
|
|
|
return $this; |
|
73
|
|
|
} |
|
74
|
|
|
} |
|
75
|
|
|
|
jamesmoss /
flywheel
This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.